{"id":3285,"date":"2025-06-16T14:07:54","date_gmt":"2025-06-16T06:07:54","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=3285"},"modified":"2025-06-16T14:07:58","modified_gmt":"2025-06-16T06:07:58","slug":"what-is-the-difference-between-calcite-powder-and-marble-powder-when-used","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/vi\/what-is-the-difference-between-calcite-powder-and-marble-powder-when-used\/","title":{"rendered":"S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa b\u1ed9t canxit v\u00e0 b\u1ed9t \u0111\u00e1 c\u1ea9m th\u1ea1ch khi s\u1eed d\u1ee5ng l\u00e0 g\u00ec?"},"content":{"rendered":"

M\u1eb7c d\u00f9 c\u1ea3 hai b\u1ed9t canxit <\/a>v\u00e0 b\u1ed9t \u0111\u00e1 c\u1ea9m th\u1ea1ch thu\u1ed9c v\u1ec1 b\u1ed9t canxi cacbonat<\/a>, ch\u00fang c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t r\u00f5 r\u00e0ng trong c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 do ngu\u1ed3n nguy\u00ean li\u1ec7u th\u00f4, \u0111\u1eb7c \u0111i\u1ec3m c\u1ea5u tr\u00fac v\u00e0 c\u00f4ng ngh\u1ec7 ch\u1ebf bi\u1ebfn kh\u00e1c nhau. Hi\u1ec3u \u0111\u01b0\u1ee3c s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ee7a ch\u00fang s\u1ebd gi\u00fap \u0111\u01b0a ra l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u h\u1ee3p l\u00fd h\u01a1n trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 nh\u1ef1a, s\u01a1n ph\u1ee7 v\u00e0 v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng. Qua \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t s\u1ea3n ph\u1ea9m v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed.<\/p>\n\n\n\n

So s\u00e1nh b\u1ea3n ch\u1ea5t kho\u00e1ng v\u1eadt v\u00e0 t\u00ednh ch\u1ea5t l\u00fd h\u00f3a:<\/h2>\n\n\n\n
\"canxit<\/figure>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t trong th\u00e0nh ph\u1ea7n v\u00e0 c\u1ea5u tr\u00fac kho\u00e1ng ch\u1ea5t<\/h3>\n\n\n\n

B\u1ed9t canxit:<\/strong><\/p>\n\n\n\n

Th\u00e0nh ph\u1ea7n ch\u00ednh l\u00e0 canxi cacbonat (CaCO\u2083), c\u1ea5u tr\u00fac tinh th\u1ec3 l\u00e0 tam gi\u00e1c, s\u1ea3n ph\u1ea9m tinh khi\u1ebft kh\u00f4ng m\u00e0u v\u00e0 trong su\u1ed1t. Tuy nhi\u00ean, canxit t\u1ef1 nhi\u00ean th\u01b0\u1eddng c\u00f3 m\u00e0u tr\u1eafng x\u00e1m, v\u00e0ng nh\u1ea1t, v.v. do t\u1ea1p ch\u1ea5t nh\u01b0 magi\u00ea, s\u1eaft v\u00e0 mangan. \u0110\u1ed9 c\u1ee9ng Mohs c\u1ee7a n\u00f3 l\u00e0 3, m\u1eadt \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed1i l\u00e0 2,71, c\u00f3 kh\u1ea3 n\u0103ng ph\u00e2n c\u1eaft t\u1ed1t v\u00e0 c\u00e1c h\u1ea1t b\u1ed9t ch\u1ee7 y\u1ebfu \u1edf d\u1ea1ng nghi\u1ec1n h\u00ecnh thoi.<\/p>\n\n\n\n

B\u1ed9t \u0111\u00e1 c\u1ea9m th\u1ea1ch:<\/strong>
Thu\u1ed9c v\u1ec1 b\u1ed9t \u0111\u00e1 bi\u1ebfn ch\u1ea5t, kho\u00e1ng v\u1eadt ch\u00ednh v\u1eabn l\u00e0 canxit (h\u00e0m l\u01b0\u1ee3ng \u226550%). Tuy nhi\u00ean, th\u01b0\u1eddng \u0111i k\u00e8m v\u1edbi c\u00e1c t\u1ea1p ch\u1ea5t nh\u01b0 dolomit (CaMg (CO\u2083)\u2082), th\u1ea1ch anh, mica. V\u1ec1 m\u1eb7t c\u1ea5u tr\u00fac, do \u1ea3nh h\u01b0\u1edfng c\u1ee7a qu\u00e1 tr\u00ecnh bi\u1ebfn ch\u1ea5t \u0111\u1ecba ch\u1ea5t, c\u00e1c h\u1ea1t tinh th\u1ec3 th\u00f4 h\u01a1n v\u00e0 \u0111\u1eb7c h\u01a1n. \u0110\u1ed9 c\u1ee9ng Mohs l\u00e0 3,5-5, t\u1ef7 tr\u1ecdng t\u01b0\u01a1ng \u0111\u1ed1i l\u00e0 2,6-2,8, c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y c\u00e1c h\u1ea1t h\u1ed7n h\u1ee3p d\u1ea1ng v\u1ea3y ho\u1eb7c d\u1ea1ng h\u1ea1t trong b\u1ed9t.<\/p>\n\n\n\n

So s\u00e1nh c\u00e1c ch\u1ec9 s\u1ed1 v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc ch\u00ednh<\/h3>\n\n\n\n
C\u00e1c ch\u1ec9 s\u1ed1<\/td>B\u1ed9t canxit<\/td>B\u1ed9t \u0111\u00e1 c\u1ea9m th\u1ea1ch<\/td><\/tr>
\u0110\u1ed9 tinh khi\u1ebft c\u1ee7a CaCO\u2083<\/td>\u226595% (c\u1ea5p c\u00f4ng nghi\u1ec7p)<\/td>70%-90% (b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi t\u1ea1p ch\u1ea5t)<\/td><\/tr>
Th\u00e0nh ph\u1ea7n t\u1ea1p ch\u1ea5t<\/td>Fe\u2082O\u2083, MgO th\u00f4ng th\u01b0\u1eddng<\/td>Ch\u1ee9a SiO\u2082, Al\u2082O\u2083, dolomit, v.v.<\/td><\/tr>
\u0110\u1ed9 tr\u1eafng<\/td>85-95 (\u0111\u1ed9 tinh khi\u1ebft cao l\u00ean \u0111\u1ebfn 97)<\/td>75-85 (b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi t\u1ea1p ch\u1ea5t s\u1eafc t\u1ed1)<\/td><\/tr>
Gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u (ml\/100g)<\/td>15-30 (b\u1ec1 m\u1eb7t h\u1ea1t t\u01b0\u01a1ng \u0111\u1ed1i nh\u1eb5n)<\/td>25-40 (\u0111\u1ed9 x\u1ed1p cao c\u1ee7a c\u00e1c h\u1ea1t d\u1ea1ng v\u1ea3y)<\/td><\/tr>
gi\u00e1 tr\u1ecb pH<\/td>8.0-9.0 (ki\u1ec1m y\u1ebfu)<\/td>7,5-8,5 (\u00edt b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi t\u1ea1p ch\u1ea5t h\u01a1n m\u1ed9t ch\u00fat)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u0110\u1eb7c \u0111i\u1ec3m ch\u1ebf bi\u1ebfn b\u1ed9t v\u00e0 Ph\u00e2n lo\u1ea1i<\/a> S\u1ef1 ph\u00f9 h\u1ee3p<\/h2>\n\n\n\n
\"\u0111\u00e1<\/figure>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa qu\u00e1 tr\u00ecnh nghi\u1ec1n v\u00e0 ph\u00e2n lo\u1ea1i<\/h3>\n\n\n\n

B\u1ed9t canxit:<\/strong><\/p>\n\n\n\n

Do \u0111\u1ed9 c\u1ee9ng th\u1ea5p v\u00e0 kh\u1ea3 n\u0103ng ph\u00e2n c\u1eaft ph\u00e1t tri\u1ec3n t\u1ed1t, n\u00ean ph\u00f9 h\u1ee3p \u0111\u1ec3 nghi\u1ec1n kh\u00f4 b\u1eb1ng m\u00e1y nghi\u1ec1n Raymond, m\u00e1y nghi\u1ec1n bi, v.v. D\u1ec5 d\u00e0ng thu \u0111\u01b0\u1ee3c b\u1ed9t si\u00eau m\u1ecbn v\u1edbi D50 = 1-10\u03bcm. Trong qu\u00e1 tr\u00ecnh ph\u00e2n lo\u1ea1i, do h\u00ecnh d\u1ea1ng \u0111\u1ec1u c\u1ee7a c\u00e1c h\u1ea1t, qu\u1ef9 \u0111\u1ea1o chuy\u1ec3n \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh trong tr\u01b0\u1eddng ly t\u00e2m. M\u00e1y ph\u00e2n lo\u1ea1i lu\u1ed3ng kh\u00ed s\u00ea-ri HTS c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao D97 = 3\u03bcm v\u00e0 t\u1ef7 l\u1ec7 nghi\u1ec1n qu\u00e1 m\u1ee9c l\u00e0 <5%.<\/p>\n\n\n\n

B\u1ed9t \u0111\u00e1 c\u1ea9m th\u1ea1ch:<\/strong>
Khi ch\u1ee9a t\u1ea1p ch\u1ea5t c\u1ee9ng nh\u01b0 th\u1ea1ch anh, c\u1ea7n ph\u1ea3i nghi\u1ec1n b\u1eb1ng m\u00e1y nghi\u1ec1n va \u0111\u1eadp ho\u1eb7c m\u00e1y nghi\u1ec1n lu\u1ed3ng kh\u00ed (nh\u01b0 m\u00e1y nghi\u1ec1n va ch\u1ea1m t\u1ea7ng s\u00f4i), v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng cao h\u01a1n canxit 20%-30%. Trong qu\u00e1 tr\u00ecnh ph\u00e2n lo\u1ea1i, v\u00ec c\u00e1c h\u1ea1t d\u1ea1ng v\u1ea3y d\u1ec5 k\u1ebft t\u1ee5 n\u00ean c\u1ea7n ph\u1ea3i ph\u1ed1i h\u1ee3p v\u1edbi m\u00e1y ph\u00e2n t\u00e1n si\u00eau \u00e2m (\u00e1p su\u1ea5t 0,6-0,8MPa) \u0111\u1ec3 ph\u00e1 h\u1ee7y c\u00e1c k\u1ebft t\u1ee5. V\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c ph\u00e2n lo\u1ea1i b\u1ecb gi\u1ea3m. Khi D97 = 5\u03bcm, hi\u1ec7u su\u1ea5t ph\u00e2n lo\u1ea1i ch\u1ec9 \u0111\u1ea1t 70% canxit.<\/p>\n\n\n\n

Kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng s\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t<\/h3>\n\n\n\n
    \n
  • Nh\u00f3m hydroxyl tr\u00ean b\u1ec1 m\u1eb7t b\u1ed9t canxit \u0111\u1ed3ng \u0111\u1ec1u. Sau khi bi\u1ebfn t\u00ednh b\u1eb1ng axit stearic (li\u1ec1u l\u01b0\u1ee3ng 1,5-2,0%), \u0111\u1ed9 ho\u1ea1t h\u00f3a c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 98%. Th\u00edch h\u1ee3p cho c\u00e1c c\u1ea3nh \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ph\u00e2n t\u00e1n cao, ch\u1eb3ng h\u1ea1n nh\u01b0 \u1ed1ng PVC.<\/li>\n\n\n\n
  • Do b\u1ed9t \u0111\u00e1 hoa c\u00f3 nh\u00f3m t\u1ea1p ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t ph\u1ee9c t\u1ea1p n\u00ean li\u1ec1u l\u01b0\u1ee3ng ch\u1ea5t bi\u1ebfn t\u00ednh (nh\u01b0 ch\u1ea5t k\u1ebft d\u00ednh titanat) c\u1ea7n t\u0103ng l\u00ean 2,5-3,0%. H\u01a1n n\u1eefa, g\u00f3c ti\u1ebfp x\u00fac sau khi bi\u1ebfn t\u00ednh th\u1ea5p h\u01a1n canxit 10\u00b0-15\u00b0, d\u1ec5 x\u1ea3y ra v\u1ea5n \u0111\u1ec1 ph\u00e2n t\u00e1n kh\u00f4ng \u0111\u1ec1u trong s\u1ea3n ph\u1ea9m cao su.<\/li>\n<\/ul>\n\n\n\n

    Ph\u00e2n bi\u1ec7t c\u00e1c l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng<\/h2>\n\n\n\n
    \"M\u00e1y<\/figure>\n\n\n\n

    Ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u1ef1a:<\/h3>\n\n\n\n

    B\u1ed9t canxit:<\/strong>
    K\u1ecbch b\u1ea3n l\u1ee3i th\u1ebf: Th\u00eam b\u1ed9t canxit si\u00eau m\u1ecbn 3-5% (D50 = 2\u03bcm) v\u00e0o m\u00e0ng trong su\u1ed1t (nh\u01b0 m\u00e0ng \u0111\u00f3ng g\u00f3i th\u1ef1c ph\u1ea9m). V\u00ec chi\u1ebft su\u1ea5t g\u1ea7n v\u1edbi PE (1,48 so v\u1edbi 1,52) n\u00ean \u0111\u1ed9 truy\u1ec1n qua ch\u1ec9 gi\u1ea3m 2-3%. \u0110\u1ed3ng th\u1eddi, \u0111\u1ed9 b\u1ec1n k\u00e9o t\u0103ng 10-15%;
    C\u00e1c \u0111i\u1ec3m quy tr\u00ecnh: Fe\u2082O\u2083<0,1% ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u0111\u1ec3 tr\u00e1nh qu\u00e1 tr\u00ecnh oxy h\u00f3a x\u00fac t\u00e1c trong qu\u00e1 tr\u00ecnh l\u00e3o h\u00f3a.<\/p>\n\n\n\n

    B\u1ed9t \u0111\u00e1 c\u1ea9m th\u1ea1ch:<\/strong>
    \u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh: h\u1ed9p nh\u1ef1a canxi (l\u01b0\u1ee3ng b\u1ed5 sung 30-40%), s\u1eed d\u1ee5ng c\u1ea5u tr\u00fac v\u1ea3y c\u1ee7a n\u00f3 \u0111\u1ec3 t\u0103ng m\u00f4 \u0111un u\u1ed1n c\u1ee7a t\u1ea5m (l\u00ean \u0111\u1ebfn 1500MPa). Tuy nhi\u00ean, do \u0111\u1ed9 tr\u1eafng th\u1ea5p n\u00ean c\u1ea7n ph\u1ea3i k\u1ebft h\u1ee3p v\u1edbi titan dioxit (li\u1ec1u l\u01b0\u1ee3ng 2-3%);
    Y\u1ebfu t\u1ed1 h\u1ea1n ch\u1ebf: Khi ch\u1ee9a SiO\u2082>5% s\u1ebd l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 m\u00e0i m\u00f2n tr\u1ee5c v\u00edt m\u00e1y \u00e9p phun (l\u01b0\u1ee3ng m\u00e0i m\u00f2n cao g\u1ea5p 3 l\u1ea7n so v\u1edbi canxit).<\/p>\n\n\n\n

    L\u1edbp ph\u1ee7 v\u00e0 m\u1ef1c<\/h3>\n\n\n\n

    B\u1ed9t canxit:<\/strong>
    \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t t\u1ea1o m\u00e0u trong s\u01a1n t\u01b0\u1eddng n\u1ed9i th\u1ea5t cao c\u1ea5p. B\u1ed9t si\u00eau m\u1ecbn c\u00f3 D50 = 1-3\u03bcm c\u00f3 th\u1ec3 l\u1ea5p \u0111\u1ea7y c\u00e1c l\u1ed7 r\u1ed7ng c\u1ee7a m\u00e0ng s\u01a1n, t\u0103ng \u0111\u1ed9 b\u00f3ng l\u00ean 60\u00b0 (m\u00e1y \u0111o \u0111\u1ed9 b\u00f3ng 60\u00b0), gi\u00e1 tr\u1ecb h\u1ea5p th\u1ee5 d\u1ea7u th\u1ea5p c\u00f3 th\u1ec3 gi\u1ea3m l\u01b0\u1ee3ng nh\u1ef1a.
    S\u1eed d\u1ee5ng b\u1ed9t canxit bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t (m\u1ee9c \u0111\u1ed9 ho\u1ea1t h\u00f3a > 95%) trong m\u1ef1c c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh l\u01b0u \u0111\u1ed9ng (\u0111\u1ed9 nh\u1edbt gi\u1ea3m 15-20mPa\u30fbs). \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1 t\u1eafc ngh\u1ebdn.<\/p>\n\n\n\n

    B\u1ed9t \u0111\u00e1 c\u1ea9m th\u1ea1ch:<\/strong>
    \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m c\u1ed1t li\u1ec7u trong s\u01a1n t\u01b0\u1eddng ngo\u1ea1i th\u1ea5t g\u1ed1c n\u01b0\u1edbc (D50=5-10\u03bcm), b\u1ec1 m\u1eb7t th\u00f4 c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng b\u00e1m b\u1ea9n c\u1ee7a l\u1edbp ph\u1ee7 (m\u1ee9c \u0111\u1ed9 b\u00e1m b\u1ea9n 1). Tuy nhi\u00ean, mu\u1ed1i h\u00f2a tan trong n\u01b0\u1edbc ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf m\u1ee9c < 0,1% \u0111\u1ec3 ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng mu\u1ed1i h\u00f3a.
    Do hi\u1ec7u \u1ee9ng hu\u1ef3nh quang c\u1ee7a t\u1ea1p ch\u1ea5t n\u00ean kh\u00f4ng th\u1ec3 s\u1eed d\u1ee5ng trong m\u1ef1c in UV (m\u1ef1c UV) v\u00ec s\u1ebd g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ed5i m\u00e0u sau khi in.<\/p>\n\n\n\n

    Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n\n\n\n

    S\u1ef1 l\u1ef1a ch\u1ecdn gi\u1eefa b\u1ed9t canxit v\u00e0 b\u1ed9t \u0111\u00e1 c\u1ea9m th\u1ea1ch v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 s\u1ef1 c\u00e2n b\u1eb1ng tam gi\u00e1c gi\u1eefa \u201c\u0111\u1ed9 tinh khi\u1ebft \u2013 chi ph\u00ed \u2013 hi\u1ec7u su\u1ea5t\u201d. Lo\u1ea1i tr\u01b0\u1edbc th\u1ed1ng tr\u1ecb th\u1ecb tr\u01b0\u1eddng cao c\u1ea5p v\u1edbi \u0111\u1ed9 tinh khi\u1ebft cao v\u00e0 kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng v\u1edbi qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn. Lo\u1ea1i sau chi\u1ebfm l\u0129nh c\u00e1c l\u0129nh v\u1ef1c trung c\u1ea5p v\u00e0 th\u1ea5p c\u1ea5p v\u1edbi nh\u1eefng l\u1ee3i th\u1ebf v\u1ec1 vi\u1ec7c s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean to\u00e0n di\u1ec7n. Bi\u1ebfn \u0111\u1ed5i nano, ph\u00e2n lo\u1ea1i composite v\u00e0 c\u00e1c c\u00f4ng ngh\u1ec7 kh\u00e1c \u0111ang d\u1ea7n ph\u00e1 v\u1ee1 ranh gi\u1edbi c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng truy\u1ec1n th\u1ed1ng v\u00e0 th\u00fac \u0111\u1ea9y \u1ee9ng d\u1ee5ng ch\u00e9o c\u1ee7a hai lo\u1ea1i b\u1ed9t trong c\u00e1c l\u0129nh v\u1ef1c m\u1edbi n\u1ed5i nh\u01b0 n\u0103ng l\u01b0\u1ee3ng m\u1edbi v\u00e0 y sinh h\u1ecdc.<\/p>\n\n\n\n

    B\u1ed9t Epic<\/h2>\n\n\n\n
    \n