{"id":4019,"date":"2026-08-12T14:31:49","date_gmt":"2026-08-12T06:31:49","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=4019"},"modified":"2026-08-12T14:31:51","modified_gmt":"2026-08-12T06:31:51","slug":"how-do-ultra-fine-grinding-and-modification-equipment-empower-calcium-carbonate-to-achieve-exceptional-whiteness-and-smoothness-in-paper","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/vi\/how-do-ultra-fine-grinding-and-modification-equipment-empower-calcium-carbonate-to-achieve-exceptional-whiteness-and-smoothness-in-paper\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o thi\u1ebft b\u1ecb nghi\u1ec1n si\u00eau m\u1ecbn v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec1u ch\u1ec9nh gi\u00fap canxi cacbonat \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 tr\u1eafng v\u00e0 \u0111\u1ed9 m\u1ecbn v\u01b0\u1ee3t tr\u1ed9i trong gi\u1ea5y?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y, canxi cacbonat\u2014bao g\u1ed3m canxi cacbonat nghi\u1ec1n (GCC) v\u00e0 canxi cacbonat k\u1ebft t\u1ee7a (PCC)\u2014\u0111\u00f3ng vai tr\u00f2 l\u00e0 nguy\u00ean li\u1ec7u th\u00f4 quan tr\u1ecdng \u0111\u1ec3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng gi\u1ea5y v\u00e0 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t. N\u00f3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tr\u1eafng, \u0111\u1ed9 m\u1edd v\u00e0 \u0111\u1ed9 m\u1ecbn. N\u00f3 c\u0169ng t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 m\u1ef1c v\u00e0 kh\u1ea3 n\u0103ng in \u1ea5n. Tuy nhi\u00ean, \u0111\u00e1 v\u00f4i th\u00f4 ho\u1eb7c canxi cacbonat th\u00f4 kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp trong c\u00e1c quy tr\u00ecnh s\u1ea3n xu\u1ea5t gi\u1ea5y ti\u00eau chu\u1ea9n cao. Hi\u1ec7u qu\u1ea3 t\u1ed1i \u01b0u c\u1ee7a canxi cacbonat ph\u1ee5 thu\u1ed9c ph\u1ea7n l\u1edbn v\u00e0o thi\u1ebft b\u1ecb \u0111\u1ea7u v\u00e0o. <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/vi\/\">Thi\u1ebft b\u1ecb nghi\u1ec1n si\u00eau m\u1ecbn canxi cacbonat<\/a> Ph\u1ea3i \u0111\u1ea3m b\u1ea3o ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc v\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 h\u1ea1t. Thi\u1ebft b\u1ecb bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t ph\u1ea3i th\u00edch \u1ee9ng \u0111\u00fang c\u00e1ch v\u1edbi \u00e1i l\u1ef1c giao di\u1ec7n v\u00e0 l\u1edbp ph\u1ee7.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/06\/calcium-carbonate-grinding-mill.webp\" alt=\"m\u00e1y nghi\u1ec1n canxi cacbonat\" class=\"wp-image-3904\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/06\/calcium-carbonate-grinding-mill.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/06\/calcium-carbonate-grinding-mill-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/06\/calcium-carbonate-grinding-mill-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/06\/calcium-carbonate-grinding-mill-768x768.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/06\/calcium-carbonate-grinding-mill-12x12.webp 12w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">I. Thi\u1ebft b\u1ecb nghi\u1ec1n si\u00eau m\u1ecbn: N\u1ec1n t\u1ea3ng cho c\u00e1c vai tr\u00f2 \u201cl\u1ea5p \u0111\u1ea7y\u201d v\u00e0 \u201cph\u1ee7\u201d<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Canxi cacbonat \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh Canxi cacbonat nghi\u1ec1n m\u1ecbn (GCC) v\u00e0 Canxi cacbonat k\u1ebft t\u1ee7a (PCC) d\u1ef1a tr\u00ean ph\u01b0\u01a1ng ph\u00e1p ch\u1ebf bi\u1ebfn. Thi\u1ebft b\u1ecb nghi\u1ec1n \u0111\u00f3ng vai tr\u00f2 trung t\u00e2m trong s\u1ea3n xu\u1ea5t c\u1ea3 hai lo\u1ea1i, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi GCC.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Qu\u1eb7ng Canxi Cacbonat \u2500\u2500&gt; Nghi\u1ec1n th\u00f4 \u2500\u2500&gt; Nghi\u1ec1n si\u00eau m\u1ecbn kh\u00f4\/\u01b0\u1edbt \u2500\u2500&gt; Ph\u00e2n lo\u1ea1i h\u1ea1t \u2500\u2500&gt; Ch\u1ea5t \u0111\u1ed9n\/ch\u1ea5t t\u1ea1o m\u00e0u ph\u1ee7 ch\u1ea5t l\u01b0\u1ee3ng cao cho s\u1ea3n xu\u1ea5t gi\u1ea5y\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">1. Hai vai tr\u00f2 ch\u00ednh c\u1ee7a canxi cacbonat trong s\u1ea3n xu\u1ea5t gi\u1ea5y<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>D\u00f9ng l\u00e0m gi\u1ea5y l\u00f3t:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>GCC:<\/strong> GCC ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong gi\u1ea5y in, gi\u1ea5y vi\u1ebft, gi\u1ea5y v\u0103n ph\u00f2ng v\u00e0 gi\u1ea5y qu\u1ea3ng c\u00e1o. GCC lo\u1ea1i ti\u00eau chu\u1ea9n c\u00f3 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t \u0111\u1ed9n cao (nh\u01b0 325 mesh, \u0111\u1ed9 tr\u1eafng \u2265 92%, CaCO3 \u2265 98%) ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng m\u00e1y c\u00e1n Raymond ho\u1eb7c m\u00e1y c\u00e1n tr\u1ee5c \u0111\u1ee9ng. GCC si\u00eau m\u1ecbn cao c\u1ea5p h\u01a1n (tr\u00ean 1250 mesh) d\u00f9ng cho gi\u1ea5y b\u00eca c\u1ee9ng \u0111\u00f2i h\u1ecfi quy tr\u00ecnh x\u1eed l\u00fd hi\u1ec7u qu\u1ea3 th\u00f4ng qua c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c. <strong>m\u00e1y nghi\u1ec1n tr\u1ee5c l\u0103n kh\u00f4<\/strong> ho\u1eb7c <strong>d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t ph\u00e2n lo\u1ea1i m\u00e1y nghi\u1ec1n bi<\/strong>.<\/li>\n\n\n\n<li><strong>PCC:<\/strong> V\u1ec1 nguy\u00ean t\u1eafc, PCC c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i gi\u1ea5y. N\u00f3 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n cho c\u00e1c lo\u1ea1i gi\u1ea5y cao c\u1ea5p, ch\u1eb3ng h\u1ea1n nh\u01b0 gi\u1ea5y thu\u1ed1c l\u00e1, gi\u1ea5y in phun v\u00e0 gi\u1ea5y tr\u00e1ng ph\u1ee7 nh\u1eb9. N\u00f3 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t th\u00f4ng qua qu\u00e1 tr\u00ecnh k\u1ebft t\u1ee7a h\u00f3a h\u1ecdc k\u1ebft h\u1ee3p v\u1edbi thi\u1ebft b\u1ecb ph\u00e2n t\u00e1ch v\u00e0 ph\u00e2n lo\u1ea1i \u1edf giai \u0111o\u1ea1n sau.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>D\u00f9ng l\u00e0m ch\u1ea5t t\u1ea1o m\u00e0u ph\u1ee7:<\/strong>\n<ul class=\"wp-block-list\">\n<li>GCC c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u1ea3 l\u1edbp ph\u1ee7 tr\u01b0\u1edbc v\u00e0 l\u1edbp ph\u1ee7 tr\u00ean c\u00f9ng. L\u1edbp ph\u1ee7 tr\u01b0\u1edbc y\u00eau c\u1ea7u c\u00e1c h\u1ea1t nh\u1ecf h\u01a1n 2 \u03bcm chi\u1ebfm h\u01a1n 75% t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng. L\u1edbp ph\u1ee7 tr\u00ean c\u00f9ng y\u00eau c\u1ea7u c\u00e1c h\u1ea1t nh\u1ecf h\u01a1n 2 \u03bcm \u0111\u1ea1t 90%\u2013100%. Nh\u1eefng h\u1ea1t si\u00eau m\u1ecbn n\u00e0y gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 b\u00f3ng v\u00e0 \u0111\u1ed9 ph\u1eb3ng c\u1ee7a b\u1ec1 m\u1eb7t gi\u1ea5y.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/vi\/machines\/\">Thi\u1ebft b\u1ecb m\u00e0i l\u00f5i<\/a> L\u1ef1a ch\u1ecdn Canxi Cacbonat d\u00f9ng trong s\u1ea3n xu\u1ea5t gi\u1ea5y<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u nghi\u00eam ng\u1eb7t v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 ph\u00e2n b\u1ed1 h\u1ea1t \u1edf c\u00e1c giai \u0111o\u1ea1n s\u1ea3n xu\u1ea5t gi\u1ea5y kh\u00e1c nhau, c\u00e1c d\u00e2y chuy\u1ec1n x\u1eed l\u00fd nghi\u1ec1n c\u00f4ng nghi\u1ec7p chuy\u00ean d\u1ee5ng \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><td><strong>\u1ee8ng d\u1ee5ng<\/strong><\/td><td><strong>K\u00edch th\u01b0\u1edbc h\u1ea1t \/ Y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng<\/strong><\/td><td><strong>Thi\u1ebft b\u1ecb nghi\u1ec1n si\u00eau m\u1ecbn \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/strong><\/td><td><strong>\u0110\u1eb7c \u0111i\u1ec3m v\u00e0 \u01b0u \u0111i\u1ec3m c\u1ee7a quy tr\u00ecnh<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>GCC c\u1ea5p \u0111\u1ed9 ch\u1ea5t \u0111\u1ed9n<\/strong><\/td><td>325\u20131250 m\u1eaft l\u01b0\u1edbi (d_90\u2264 10\u03bcm)<\/td><td><strong>M\u00e1y nghi\u1ec1n tr\u1ee5c \u0111\u1ee9ng \/ M\u00e1y nghi\u1ec1n tr\u1ee5c v\u00f2ng \/ M\u00e1y nghi\u1ec1n th\u00f4 + M\u00e1y ph\u00e2n lo\u1ea1i kh\u00ed<\/strong><\/td><td>C\u00f4ng su\u1ea5t cao, ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng th\u1ea5p, h\u00ecnh th\u00e1i h\u1ea1t t\u1ed1t. L\u00fd t\u01b0\u1edfng cho vi\u1ec7c x\u1eed l\u00fd ch\u1ea5t \u0111\u1ed9n quy m\u00f4 l\u1edbn.<\/td><\/tr><tr><td><strong>GCC c\u1ea5p \u0111\u1ed9 s\u01a1n ph\u1ee7 tr\u01b0\u1edbc<\/strong><\/td><td>C\u00e1c h\u1ea1t 2\u03bcm \u226575%<\/td><td><strong><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/vi\/machines\/ball-mill\/\">D\u00e2y chuy\u1ec1n ph\u00e2n lo\u1ea1i m\u00e1y nghi\u1ec1n bi kh\u00f4<\/a> \/ M\u00e1y nghi\u1ec1n khu\u1ea5y \u01b0\u1edbt<\/strong><\/td><td>Ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng t\u1ed1t. Th\u00edch h\u1ee3p \u0111\u1ec3 pha ch\u1ebf c\u00e1c lo\u1ea1i s\u01a1n ph\u1ee7 c\u00f3 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t r\u1eafn cao.<\/td><\/tr><tr><td><strong>L\u1edbp ph\u1ee7 tr\u00ean c\u00f9ng c\u1ea5p GCC<\/strong><\/td><td>C\u00e1c h\u1ea1t &lt;2\u03bcm 90% -100\\%<\/td><td><strong>M\u00e1y nghi\u1ec1n \u01b0\u1edbt si\u00eau m\u1ecbn khu\u1ea5y\/M\u00e1y nghi\u1ec1n bi n\u1eb1m ngang<\/strong><\/td><td>S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p m\u00e0i b\u1eb1ng v\u1eadt li\u1ec7u m\u00e0i \u0111\u1ec3 t\u00e1ch l\u1edbp vi m\u00f4 v\u00e0 d\u01b0\u1edbi vi m\u00f4. T\u1ef7 l\u1ec7 h\u1ea1t vi m\u00f4 cao t\u1ea1o ra \u0111\u1ed9 b\u00f3ng b\u1ec1 m\u1eb7t cao.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System.webp\" alt=\"H\u1ec7 th\u1ed1ng m\u00e1y nghi\u1ec1n bi canxi cacbonat + m\u00e1y ph\u00e2n lo\u1ea1i\" class=\"wp-image-3779\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System-300x225.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System-768x576.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System-16x12.webp 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">H\u1ec7 th\u1ed1ng m\u00e1y nghi\u1ec1n bi canxi cacbonat + m\u00e1y ph\u00e2n lo\u1ea1i<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">II. <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/vi\/surface-modification\/\">Thi\u1ebft b\u1ecb s\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t<\/a>Ch\u00eca kh\u00f3a cho s\u1ef1 t\u01b0\u01a1ng th\u00edch v\u00e0 kh\u1ea3 n\u0103ng gi\u1eef ch\u00e2n kh\u00e1ch h\u00e0ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nghi\u1ec1n si\u00eau m\u1ecbn gi\u00fap canxi cacbonat c\u00f3 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang l\u1edbn v\u00e0 k\u1ebft c\u1ea5u m\u1ecbn. Tuy nhi\u00ean, canxi cacbonat ch\u01b0a qua x\u1eed l\u00fd v\u1eabn l\u00e0 v\u1eadt li\u1ec7u v\u00f4 c\u01a1, \u01b0a n\u01b0\u1edbc. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 \u0111\u1ed9 b\u1ec1n li\u00ean k\u1ebft k\u00e9m v\u1edbi c\u00e1c s\u1ee3i th\u1ef1c v\u1eadt h\u1eefu c\u01a1, v\u1ed1n c\u0169ng \u01b0a n\u01b0\u1edbc nh\u01b0ng mang \u0111i\u1ec7n t\u00edch \u00e2m tr\u00ean b\u1ec1 m\u1eb7t. S\u1ef1 kh\u00f4ng t\u01b0\u01a1ng th\u00edch n\u00e0y d\u1eabn \u0111\u1ebfn kh\u1ea3 n\u0103ng gi\u1eef ch\u1ea5t \u0111\u1ed9n th\u1ea5p, gi\u1ea3m \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng gi\u1ea5y b\u1ecb x\u00f9 l\u00f4ng ho\u1eb7c t\u1ea1o b\u1ee5i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y, <strong>m\u00e1y s\u1eeda \u0111\u1ed5i li\u00ean t\u1ee5c hi\u1ec7u qu\u1ea3 cao<\/strong> Ch\u00fang r\u1ea5t c\u1ea7n thi\u1ebft cho qu\u00e1 tr\u00ecnh ph\u1ee7 h\u00f3a ch\u1ea5t ho\u1eb7c bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Thi\u1ebft b\u1ecb c\u1ea3i ti\u1ebfn ch\u00ednh v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M\u00e1y ch\u1ec9nh s\u1eeda t\u1ed5 ong ba v\u00f2ng\/nhi\u1ec1u ng\u0103n:<\/strong> L\u1ef1c c\u1eaft v\u00e0 l\u1ef1c ly t\u00e2m m\u1ea1nh \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi r\u00f4to t\u1ed1c \u0111\u1ed9 cao. B\u1ed9t canxi cacbonat \u0111\u01b0\u1ee3c l\u00e0m cho h\u00f3a l\u1ecfng v\u00e0 tr\u1ed9n nhanh v\u1edbi c\u00e1c ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh d\u1ea1ng phun s\u01b0\u01a1ng (nh\u01b0 natri stearat ho\u1eb7c ch\u1ea5t li\u00ean k\u1ebft) \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c l\u1edbp ph\u1ee7 \u0111\u01a1n l\u1edbp \u1edf c\u1ea5p \u0111\u1ed9 ph\u00e2n t\u1eed.<\/li>\n\n\n\n<li><strong>M\u00e1y c\u1ea3i ti\u1ebfn li\u00ean t\u1ee5c tuabin:<\/strong> Thi\u1ebft b\u1ecb n\u00e0y th\u00edch h\u1ee3p cho qu\u00e1 tr\u00ecnh bi\u1ebfn t\u00ednh kh\u00f4 t\u1ed1c \u0111\u1ed9 cao c\u1ee7a canxi cacbonat si\u00eau m\u1ecbn. V\u1eadt li\u1ec7u v\u00e0 ch\u1ea5t bi\u1ebfn t\u00ednh va ch\u1ea1m \u1edf t\u1ea7n s\u1ed1 cao b\u00ean trong bu\u1ed3ng tuabin. Thi\u1ebft k\u1ebf n\u00e0y mang l\u1ea1i t\u1ed1c \u0111\u1ed9 ph\u1ee7 cao v\u00e0 ng\u0103n ng\u1eeba hi\u1ec7u qu\u1ea3 hi\u1ec7n t\u01b0\u1ee3ng v\u00f3n c\u1ee5c l\u1ea1i c\u1ee7a b\u1ed9t si\u00eau m\u1ecbn.<\/li>\n\n\n\n<li><strong>L\u00f2 ph\u1ea3n \u1ee9ng\/B\u00ecnh khu\u1ea5y \u01b0\u1edbt \u0111\u1ec3 bi\u1ebfn \u0111\u1ed5i c\u1ea5u tr\u00fac:<\/strong> C\u00e1c ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh (nh\u01b0 chitosan cation h\u00f3a, CMC, ho\u1eb7c ch\u1ea5t li\u00ean k\u1ebft KH570) \u0111\u01b0\u1ee3c th\u00eam tr\u1ef1c ti\u1ebfp v\u00e0o h\u1ed7n h\u1ee3p s\u1ec7t trong ho\u1eb7c sau qu\u00e1 tr\u00ecnh nghi\u1ec1n si\u00eau m\u1ecbn \u01b0\u1edbt. Qu\u00e1 tr\u00ecnh n\u00e0y cho ph\u00e9p gh\u00e9p ho\u1eb7c ph\u1ee7 b\u1ec1 m\u1eb7t \u1edf pha l\u1ecfng.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Quy tr\u00ecnh s\u1eeda \u0111\u1ed5i v\u00e0 l\u1ee3i \u00edch c\u1ee7a thi\u1ebft b\u1ecb<\/h3>\n\n\n\n<h5 class=\"wp-block-heading\">(1) Qu\u00e1 tr\u00ecnh ph\u1ee7 h\u00f3a ch\u1ea5t<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1edbp ph\u1ee7 h\u00f3a h\u1ecdc l\u00e0m bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a GCC ho\u1eb7c PCC trong h\u1ec7 th\u1ed1ng ph\u1ea3n \u1ee9ng. V\u00ed d\u1ee5, s\u1ef1 t\u1ea1o ph\u1ee9c ch\u1ea5t \u0111i\u1ec7n ph\u00e2n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u00ean trong thi\u1ebft b\u1ecb bi\u1ebfn \u0111\u1ed5i \u0111\u1ec3 l\u1eafng \u0111\u1ecdng chitosan cation h\u00f3a v\u00e0 carboxymethyl cellulose (CMC) l\u00ean b\u1ec1 m\u1eb7t PCC:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Vai tr\u00f2 c\u1ee7a thi\u1ebft b\u1ecb:<\/strong> Qu\u00e1 tr\u00ecnh tr\u1ed9n c\u01b0\u1ee1ng b\u1ee9c v\u00e0 k\u1ebft t\u1ee7a \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 gi\u00fap ph\u00e2n b\u1ed1 h\u1ea1t t\u1eadp trung v\u00e0 \u0111\u1ed3ng \u0111\u1ec1u h\u01a1n, l\u00e0m t\u0103ng g\u1ea5p \u0111\u00f4i di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang.<\/li>\n\n\n\n<li><strong>Tr\u00ecnh di\u1ec5n l\u00e0m gi\u1ea5y:<\/strong> Canxi cacbonat \u0111\u01b0\u1ee3c ph\u1ee7 l\u1edbp gi\u1eef \u1ed5n \u0111\u1ecbnh trong c\u00e1c l\u1ed7 r\u1ed7ng c\u1ee7a s\u1ee3i nh\u1edd c\u01a1 ch\u1ebf gi\u1eef c\u01a1 h\u1ecdc v\u00e0 h\u1ea5p ph\u1ee5 keo. Qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0m t\u0103ng <strong>t\u1ef7 l\u1ec7 gi\u1eef ch\u00e2n<\/strong> v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 ch\u1ec9 s\u1ed1 \u0111\u1ed9 b\u1ec1n k\u00e9o, \u0111\u1ed9 b\u1ec1n n\u1ed5 v\u00e0 \u0111\u1ed9 b\u1ec1n g\u1ea5p.<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">(2) Qu\u00e1 tr\u00ecnh gh\u00e9p n\u1ed1i h\u00f3a h\u1ecdc b\u1ec1 m\u1eb7t<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c ch\u1ea5t li\u00ean k\u1ebft (nh\u01b0 KH570) ho\u1eb7c ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t h\u1eefu c\u01a1 (nh\u01b0 natri stearat) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ea3i ti\u1ebfn b\u1ed9t canxi cacbonat:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Vai tr\u00f2 c\u1ee7a thi\u1ebft b\u1ecb:<\/strong> C\u00e1c m\u00e1y gia c\u00f4ng t\u1ed1c \u0111\u1ed9 cao s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p c\u1eaft nhi\u1ec7t \u0111\u1ec3 ph\u1ee7 \u0111\u1ec1u natri stearat ho\u1eb7c silanol th\u1ee7y ph\u00e2n (Si-OH) l\u00ean b\u1ec1 m\u1eb7t nano canxi cacbonat, t\u1ea1o th\u00e0nh c\u00e1c li\u00ean k\u1ebft h\u00f3a h\u1ecdc b\u1ec1n v\u1eefng (nh\u01b0 li\u00ean k\u1ebft Ca-O-Si).<\/li>\n\n\n\n<li><strong>Tr\u00ecnh di\u1ec5n l\u00e0m gi\u1ea5y:<\/strong> Canxi cacbonat bi\u1ebfn t\u00ednh th\u1ec3 hi\u1ec7n \u0111\u1ed9 ph\u00e2n c\u1ef1c gi\u1ea3m, n\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t th\u1ea5p h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n t\u1ed1t h\u01a1n \u0111\u00e1ng k\u1ec3. Khi \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong l\u1edbp ph\u1ee7, n\u00f3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n b\u1ec1 m\u1eb7t, t\u00ednh ch\u1ea5t k\u1ef5 n\u01b0\u1edbc v\u00e0 hi\u1ec7u su\u1ea5t ma s\u00e1t (th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho l\u1edbp l\u00f3t ch\u1ed1ng tr\u01b0\u1ee3t v\u00e0 khay \u0111\u00f3ng g\u00f3i).<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Surface-Modification-of-Calcium-Carbonate.webp\" alt=\"Bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a canxi cacbonat\" class=\"wp-image-3810\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Surface-Modification-of-Calcium-Carbonate.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Surface-Modification-of-Calcium-Carbonate-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Surface-Modification-of-Calcium-Carbonate-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Surface-Modification-of-Calcium-Carbonate-768x768.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Surface-Modification-of-Calcium-Carbonate-12x12.webp 12w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a canxi cacbonat<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">III. S\u1ef1 ph\u1ed1i h\u1ee3p gi\u1eefa x\u1eed l\u00fd si\u00eau m\u1ecbn v\u00e0 bi\u1ebfn \u0111\u1ed5i c\u1ea5u tr\u00fac<\/h2>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>T\u1ea1o \u0111\u1ed9 tr\u1eafng v\u01b0\u1ee3t tr\u1ed9i (Nghi\u1ec1n v\u1ee1 v\u1ee5n + Lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t):<\/strong>C\u1ea5u tr\u00fac tinh th\u1ec3 canxi cacbonat t\u1ef1 nhi\u00ean v\u1ed1n c\u00f3 \u0111\u1ed9 tr\u1eafng cao. Nghi\u1ec1n ch\u00ednh x\u00e1c v\u1edbi <strong>m\u00e1y nghi\u1ec1n si\u00eau m\u1ecbn \u01b0\u1edbt khu\u1ea5y<\/strong> ho\u1eb7c <strong>m\u00e1y ph\u00e2n lo\u1ea1i nghi\u1ec1n bi<\/strong> C\u00f4ng ngh\u1ec7 n\u00e0y gi\u00fap tr\u00e1nh nhi\u1ec5m b\u1ea9n s\u1eaft \u0111\u1ed3ng th\u1eddi gi\u1ea3m k\u00edch th\u01b0\u1edbc h\u1ea1t xu\u1ed1ng m\u1ee9c t\u1ed1i \u01b0u cho vi\u1ec7c t\u00e1n x\u1ea1 \u00e1nh s\u00e1ng (kho\u1ea3ng 0,2 \u2013 0,5\u03bcm). \u0110i\u1ec1u n\u00e0y t\u1ed1i \u0111a h\u00f3a s\u1ef1 ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng nh\u00ecn th\u1ea5y, gi\u00fap t\u0103ng \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 tr\u1eafng v\u00e0 \u0111\u1ed9 m\u1edd t\u1ed5ng th\u1ec3 c\u1ee7a gi\u1ea5y.<\/li>\n\n\n\n<li><strong>\u0110\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 m\u1ecbn v\u00e0 b\u00f3ng cao (H\u1ea1t si\u00eau m\u1ecbn + Ch\u1ed1ng v\u00f3n c\u1ee5c):<\/strong>\n<ul class=\"wp-block-list\">\n<li>C\u00e1c vi h\u1ea1t \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1edfi <strong>thi\u1ebft b\u1ecb nghi\u1ec1n si\u00eau m\u1ecbn<\/strong> (&lt;2\u03bcm &gt; 90%) l\u1ea5p \u0111\u1ea7y c\u00e1c kho\u1ea3ng tr\u1ed1ng gi\u1eefa c\u00e1c s\u1ee3i, t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp ph\u1ee7 si\u00eau m\u1ecfng v\u00e0 ph\u1eb3ng tr\u00ean b\u1ec1 m\u1eb7t gi\u1ea5y.<\/li>\n\n\n\n<li>Sau qu\u00e1 tr\u00ecnh gi\u1ea3m n\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t v\u00e0 x\u1eed l\u00fd ph\u1ee7 trong thi\u1ebft b\u1ecb c\u1ea3i ti\u1ebfn, canxi cacbonat si\u00eau m\u1ecbn gi\u00fap tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng k\u1ebft t\u1ee5 th\u1ee9 c\u1ea5p trong h\u1ec7 th\u1ed1ng ph\u1ee7. N\u00f3 duy tr\u00ec \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng t\u1ed1t v\u00e0 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t r\u1eafn cao. Do \u0111\u00f3, gi\u1ea5y th\u1ec3 hi\u1ec7n \u0111\u1ed9 m\u1ecbn tuy\u1ec7t v\u1eddi v\u00e0 \u0111\u1ed9 b\u00f3ng cao sau khi c\u00e1n, \u0111\u1ed3ng th\u1eddi gi\u1ea3m hi\u1ec7n t\u01b0\u1ee3ng b\u1ee5i v\u00e0 x\u01a1 v\u1ea3i trong qu\u00e1 tr\u00ecnh in.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft b\u1ecb nghi\u1ec1n si\u00eau m\u1ecbn cho ph\u00e9p ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc h\u1ea1t, trong khi thi\u1ebft b\u1ecb bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t gi\u00fap thay \u0111\u1ed5i \u0111\u1eb7c t\u00ednh b\u1ec1 m\u1eb7t. C\u1ea3 hai c\u00f9ng nhau gi\u00fap canxi cacbonat ph\u00e1t huy t\u1ed1i \u0111a c\u00e1c \u01b0u \u0111i\u1ec3m v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc, kh\u1eb3ng \u0111\u1ecbnh v\u1ecb th\u1ebf l\u00e0 nguy\u00ean li\u1ec7u kho\u00e1ng c\u1ed1t l\u00f5i ch\u1ea5t l\u01b0\u1ee3ng cao, ti\u1ebft ki\u1ec7m chi ph\u00ed trong ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized is-style-rounded\"><img loading=\"lazy\" decoding=\"async\" width=\"360\" height=\"360\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen.webp\" alt=\"Emily Chen\" class=\"wp-image-4010\" style=\"width:150px;height:150px\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen.webp 360w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen-12x12.webp 12w\" sizes=\"(max-width: 360px) 100vw, 360px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote has-text-align-center is-style-large is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">C\u1ea3m \u01a1n b\u1ea1n \u0111\u00e3 \u0111\u1ecdc. T\u00f4i hy v\u1ecdng b\u00e0i vi\u1ebft c\u1ee7a t\u00f4i h\u1eefu \u00edch. Vui l\u00f2ng \u0111\u1ec3 l\u1ea1i b\u00ecnh lu\u1eadn b\u00ean d\u01b0\u1edbi. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 li\u00ean h\u1ec7 v\u1edbi b\u1ed9 ph\u1eadn ch\u0103m s\u00f3c kh\u00e1ch h\u00e0ng tr\u1ef1c tuy\u1ebfn c\u1ee7a Zelda n\u1ebfu c\u00f3 b\u1ea5t k\u1ef3 th\u1eafc m\u1eafc n\u00e0o kh\u00e1c.<\/p>\n<cite>                                                                                                                                                  \u2014 B\u00e0i \u0111\u0103ng b\u1edfi Emily Chen<\/cite><\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"16\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/vi\/wp-json\/wp\/v2\/posts\/4019#wpcf7-f16-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/vi\/wp-json\/wp\/v2\/posts\/4019#wpcf7-f16-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.6\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<div class=\"keen-form\">\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"T\u00ean c\u1ee7a b\u1ea1n*\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Email c\u1ee7a b\u1ea1n*\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"pnone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Pnone ho\u1eb7c Whatsapp c\u1ee7a b\u1ea1n*\" value=\"\" type=\"tel\" name=\"pnone\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-subject\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"C\u00f4ng ty c\u1ee7a b\u1ea1n\" value=\"\" type=\"text\" name=\"your-subject\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" placeholder=\"Tin nh\u1eafn c\u1ee7a b\u1ea1n\" name=\"your-message\"><\/textarea><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"N\u1ed9p\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.keen-form div{margin-bottom:5px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 40%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\nwidth: 40%;\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 90%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"vi\"\/><\/form>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y, canxi cacbonat\u2014bao g\u1ed3m Canxi Cacbonat Nghi\u1ec1n (GCC) v\u00e0 Canxi Cacbonat K\u1ebft t\u1ee7a (PCC)\u2014\u0111\u00f3ng vai tr\u00f2 l\u00e0 nguy\u00ean li\u1ec7u th\u00f4 quan tr\u1ecdng \u0111\u1ec3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng gi\u1ea5y v\u00e0 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t. N\u00f3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tr\u1eafng, \u0111\u1ed9 m\u1edd v\u00e0 \u0111\u1ed9 m\u1ecbn. N\u00f3 c\u0169ng t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 m\u1ef1c v\u00e0 kh\u1ea3 n\u0103ng in \u1ea5n. Tuy nhi\u00ean, \u0111\u00e1 v\u00f4i th\u00f4 ho\u1eb7c canxi cacbonat th\u00f4 kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp trong s\u1ea3n xu\u1ea5t gi\u1ea5y \u0111\u1ea1t ti\u00eau chu\u1ea9n cao [\u2026]<\/p>","protected":false},"author":1,"featured_media":3872,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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