{"id":3141,"date":"2025-05-08T11:59:42","date_gmt":"2025-05-08T03:59:42","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=3141"},"modified":"2025-05-08T11:59:45","modified_gmt":"2025-05-08T03:59:45","slug":"what-are-the-uses-of-heavy-calcium-carbonate-%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/vi\/what-are-the-uses-of-heavy-calcium-carbonate-%ef%bc%9f\/","title":{"rendered":"C\u00f4ng d\u1ee5ng c\u1ee7a canxi cacbonat n\u1eb7ng l\u00e0 g\u00ec?"},"content":{"rendered":"

Canxi cacbonat n\u1eb7ng<\/a>, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 canxi n\u1eb7ng, l\u00e0 m\u1ed9t lo\u1ea1i b\u1ed9t tr\u1eafng kh\u00f4ng m\u00e0u, kh\u00f4ng v\u1ecb. N\u00f3 h\u1ea7u nh\u01b0 kh\u00f4ng tan trong n\u01b0\u1edbc v\u00e0 r\u01b0\u1ee3u, nh\u01b0ng ph\u1ea3n \u1ee9ng v\u1edbi axit axetic lo\u00e3ng, axit clohydric v\u00e0 axit nitric. N\u00f3 s\u1ee7i b\u1ecdt v\u00e0 h\u00f2a tan khi ti\u1ebfp x\u00fac v\u1edbi c\u00e1c lo\u1ea1i axit n\u00e0y. Khi \u0111un n\u00f3ng \u0111\u1ebfn 898\u00b0C, n\u00f3 ph\u00e2n h\u1ee7y th\u00e0nh canxi oxit v\u00e0 carbon dioxide. C\u00f4ng d\u1ee5ng c\u1ee7a canxi cacbonat n\u1eb7ng<\/a> l\u00e0 ch\u1ea5t \u0111\u1ed9n v\u00f4 c\u01a1, \u0111\u01b0\u1ee3c nghi\u1ec1n t\u1eeb c\u00e1c kho\u00e1ng ch\u1ea5t cacbonat t\u1ef1 nhi\u00ean nh\u01b0 canxit, \u0111\u00e1 c\u1ea9m th\u1ea1ch v\u00e0 \u0111\u00e1 v\u00f4i. N\u00f3 \u1ed5n \u0111\u1ecbnh v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc, kh\u00f4ng d\u1ec5 ph\u1ea3n \u1ee9ng v\u00e0 c\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t t\u1ed1t. N\u00f3 kh\u00f4ng ph\u00e2n h\u1ee7y d\u01b0\u1edbi 400 \u00b0 C, c\u00f3 \u0111\u1ed9 tr\u1eafng cao, h\u1ea5p th\u1ee5 d\u1ea7u th\u1ea5p v\u00e0 ch\u1ec9 s\u1ed1 kh\u00fac x\u1ea1 th\u1ea5p. N\u00f3 m\u1ec1m, kh\u00f4, kh\u00f4ng c\u00f3 n\u01b0\u1edbc k\u1ebft tinh, c\u00f3 \u0111\u1ed9 c\u1ee9ng v\u00e0 m\u00e0i m\u00f2n th\u1ea5p, kh\u00f4ng \u0111\u1ed9c h\u1ea1i, kh\u00f4ng m\u00f9i v\u00e0 kh\u00f4ng v\u1ecb. N\u00f3 c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n t\u1ed1t.<\/p>\n\n\n\n

Canxi cacbonat n\u1eb7ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u01b0 m\u1ed9t ch\u1ea5t \u0111\u1ed9n trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 g\u1ea1ch nh\u00e2n t\u1ea1o, cao su, nh\u1ef1a, gi\u1ea5y, l\u1edbp ph\u1ee7, s\u01a1n, m\u1ef1c, c\u00e1p, v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng, th\u1ef1c ph\u1ea9m, d\u01b0\u1ee3c ph\u1ea9m, d\u1ec7t may, th\u1ee9c \u0103n ch\u0103n nu\u00f4i v\u00e0 kem \u0111\u00e1nh r\u0103ng. L\u00e0 m\u1ed9t ch\u1ea5t \u0111\u1ed9n, n\u00f3 gi\u00fap t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m v\u00e0 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t. Trong cao su, n\u00f3 c\u00f3 th\u1ec3 t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng gia c\u00f4ng, cung c\u1ea5p b\u00e1n gia c\u1ed1 ho\u1eb7c gia c\u1ed1 v\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 c\u1ee9ng c\u1ee7a cao su.<\/p>\n\n\n\n

\"canxi<\/a><\/figure>\n\n\n\n

C\u00f4ng d\u1ee5ng c\u1ee7a canxi cacbonat n\u1eb7ng<\/h2>\n\n\n\n

Ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t \u0111i\u1ec7n \u0111\u1ed1t than<\/h3>\n\n\n\n

Trong c\u00e1c nh\u00e0 m\u00e1y \u0111i\u1ec7n ch\u1ea1y b\u1eb1ng than, canxi cacbonat n\u1eb7ng<\/a> b\u1ed9t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 kh\u1eed l\u01b0u hu\u1ef3nh trong kh\u00ed th\u1ea3i. Kh\u1eed l\u01b0u hu\u1ef3nh trong kh\u00ed th\u1ea3i li\u00ean quan \u0111\u1ebfn ph\u1ea3n \u1ee9ng canxi cacbonat n\u1eb7ng v\u1edbi l\u01b0u hu\u1ef3nh \u0111ioxit \u0111\u01b0\u1ee3c t\u1ea1o ra trong qu\u00e1 tr\u00ecnh \u0111\u1ed1t than \u0111\u1ec3 t\u1ea1o th\u00e0nh canxi sunfit. Sau \u0111\u00f3, ch\u1ea5t n\u00e0y b\u1ecb oxy h\u00f3a th\u00e0nh th\u1ea1ch cao (canxi sunfat) khi ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed, gi\u00fap gi\u1ea3m hi\u1ec7u qu\u1ea3 l\u01b0\u1ee3ng kh\u00ed th\u1ea3i l\u01b0u hu\u1ef3nh \u0111ioxit l\u00ean t\u1edbi 90%. Th\u1ea1ch cao kh\u1eed l\u01b0u hu\u1ef3nh \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u00e1n tr\u1ef1c ti\u1ebfp cho c\u00e1c nh\u00e0 m\u00e1y xi m\u0103ng ho\u1eb7c nh\u00e0 s\u1ea3n xu\u1ea5t t\u1ea5m th\u1ea1ch cao. L\u01b0\u1ee3ng b\u1ed9t canxi cacbonat kh\u1eed l\u01b0u hu\u1ef3nh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f3 li\u00ean quan \u0111\u1ebfn h\u00e0m l\u01b0\u1ee3ng l\u01b0u hu\u1ef3nh trong than. Th\u00f4ng th\u01b0\u1eddng, m\u1ed9t nh\u00e0 m\u00e1y \u0111i\u1ec7n ch\u1ea1y b\u1eb1ng than c\u00f4ng su\u1ea5t 300.000 kW c\u1ea7n 40.000 t\u1ea5n b\u1ed9t kh\u1eed l\u01b0u hu\u1ef3nh h\u00e0ng n\u0103m.<\/p>\n\n\n\n

Ng\u00e0nh c\u00f4ng nghi\u1ec7p cao su<\/h3>\n\n\n\n

Canxi cacbonat n\u1eb7ng l\u00e0 m\u1ed9t trong nh\u1eefng ch\u1ea5t \u0111\u1ed9n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t trong ng\u00e0nh cao su. B\u1eb1ng c\u00e1ch nh\u1ed3i cao su v\u1edbi m\u1ed9t l\u01b0\u1ee3ng l\u1edbn canxi cacbonat n\u1eb7ng, th\u1ec3 t\u00edch s\u1ea3n ph\u1ea9m t\u0103ng l\u00ean v\u00e0 ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c cao su thi\u00ean nhi\u00ean \u0111\u1eaft ti\u1ec1n, gi\u1ea3m \u0111\u00e1ng k\u1ec3 chi ph\u00ed. Th\u00eam canxi cacbonat n\u1eb7ng v\u00e0o cao su d\u1eabn \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n x\u00e9 v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao h\u01a1n so v\u1edbi l\u01b0u h\u00f3a cao su nguy\u00ean ch\u1ea5t.<\/p>\n\n\n\n

Ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u1ef1a<\/h3>\n\n\n\n
\"Canxi
Canxi cacbonat (CaCO\u2083)<\/figcaption><\/figure>\n\n\n\n

B\u1ed9t canxi cacbonat n\u1eb7ng v\u1edbi k\u00edch th\u01b0\u1edbc l\u01b0\u1edbi 400 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ea1t nh\u1ef1a t\u1ed5ng h\u1ee3p v\u00e0 h\u1ea1t nh\u1ef1a t\u1ed5ng h\u1ee3p m\u00e0u. C\u1ea7n ph\u1ea3i duy tr\u00ec \u0111\u1ed9 tr\u1eafng sau khi nung \u1edf nhi\u1ec7t \u0111\u1ed9 cao, v\u1edbi c\u1ea5u tr\u00fac kho\u00e1ng l\u00e0 canxit tinh th\u1ec3 l\u1edbn. H\u00e0m l\u01b0\u1ee3ng canxi cacbonat l\u00e0 99% v\u00e0 \u0111\u1ed9 tr\u1eafng l\u00e0 95%. Trong c\u00e1c s\u1ea3n ph\u1ea9m nh\u1ef1a, canxi cacbonat n\u1eb7ng \u0111\u00f3ng vai tr\u00f2 l\u00e0 khung c\u1ea5u tr\u00fac, t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a s\u1ea3n ph\u1ea9m. N\u00f3 c\u0169ng c\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 b\u00f3ng b\u1ec1 m\u1eb7t v\u00e0 \u0111\u1ed9 ph\u1eb3ng b\u1ec1 m\u1eb7t c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

Ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u01a1n<\/h3>\n\n\n\n

C\u00e1c b\u1ed9t canxi cacbonat n\u1eb7ng<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u01a1n latex l\u00e0 l\u01b0\u1edbi 800 ho\u1eb7c l\u01b0\u1edbi 1000, c\u00f3 \u0111\u1ed9 tr\u1eafng l\u00e0 95% v\u00e0 h\u00e0m l\u01b0\u1ee3ng canxi cacbonat l\u00e0 96%.
Canxi cacbonat n\u1eb7ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u01a1n, v\u1edbi m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng trong c\u00e1c lo\u1ea1i s\u01a1n d\u00e0y v\u01b0\u1ee3t qu\u00e1 30%.<\/p>\n\n\n\n

\"s\u1eafc<\/figure>\n\n\n\n

Ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u01a1n ph\u1ee7 g\u1ed1c n\u01b0\u1edbc<\/h3>\n\n\n\n

B\u1ed9t canxi cacbonat n\u1eb7ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong l\u1edbp ph\u1ee7 g\u1ed1c n\u01b0\u1edbc l\u00e0 800 l\u01b0\u1edbi ho\u1eb7c 1000 l\u01b0\u1edbi, c\u00f3 \u0111\u1ed9 tr\u1eafng 95% v\u00e0 h\u00e0m l\u01b0\u1ee3ng canxi cacbonat l\u00e0 96%. Canxi cacbonat n\u1eb7ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p l\u1edbp ph\u1ee7 g\u1ed1c n\u01b0\u1edbc, cung c\u1ea5p c\u00e1c \u0111\u1eb7c t\u00ednh nh\u01b0 kh\u00f4ng l\u1eafng, d\u1ec5 ph\u00e2n t\u00e1n v\u00e0 \u0111\u1ed9 b\u00f3ng t\u1ed1t. Vi\u1ec7c s\u1eed d\u1ee5ng n\u00f3 trong l\u1edbp ph\u1ee7 g\u1ed1c n\u01b0\u1edbc dao \u0111\u1ed9ng t\u1eeb 20% \u0111\u1ebfn 60%.<\/p>\n\n\n\n

Ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y<\/h3>\n\n\n\n

B\u1ed9t canxi cacbonat n\u1eb7ng d\u00f9ng trong s\u1ea3n xu\u1ea5t gi\u1ea5y l\u00e0 lo\u1ea1i 325 mesh, y\u00eau c\u1ea7u \u0111\u1ed9 tr\u1eafng l\u00e0 95% v\u00e0 h\u00e0m l\u01b0\u1ee3ng canxi cacbonat l\u00e0 98%. Canxi cacbonat n\u1eb7ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 tr\u1eafng c\u1ee7a gi\u1ea5y, \u0111\u1ed3ng th\u1eddi gi\u1eef chi ph\u00ed th\u1ea5p.<\/p>\n\n\n\n

Ng\u00e0nh th\u1ee9c \u0103n ch\u0103n nu\u00f4i v\u00e0 ph\u00e2n b\u00f3n<\/h3>\n\n\n\n

Trong ng\u00e0nh th\u1ee9c \u0103n ch\u0103n nu\u00f4i, b\u1ed9t canxi cacbonat n\u1eb7ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t b\u1ed5 sung canxi, thay th\u1ebf b\u1ed9t v\u1ecf truy\u1ec1n th\u1ed1ng \u0111\u1ec3 gi\u1ea3m chi ph\u00ed. Trong ng\u00e0nh ph\u00e2n b\u00f3n, canxi cacbonat n\u1eb7ng c\u00f3 \u0111\u1ed9 tr\u1eafng kh\u00e1c nhau \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 h\u1ed7 tr\u1ee3 t\u1ea1o h\u1ea1t ph\u00e2n b\u00f3n v\u00e0 \u0111i\u1ec1u ch\u1ec9nh m\u00e0u s\u1eafc.<\/p>\n\n\n\n

Ng\u00e0nh x\u00e2y d\u1ef1ng (v\u1eefa kh\u00f4, b\u00ea t\u00f4ng)<\/h3>\n\n\n\n

B\u1ed9t canxi cacbonat n\u1eb7ng d\u00f9ng trong v\u1eefa kh\u00f4 l\u00e0 lo\u1ea1i 325 mesh, y\u00eau c\u1ea7u \u0111\u1ed9 tr\u1eafng l\u00e0 95%, h\u00e0m l\u01b0\u1ee3ng canxi cacbonat l\u00e0 98%. Canxi cacbonat n\u1eb7ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong b\u00ea t\u00f4ng x\u00e2y d\u1ef1ng, kh\u00f4ng ch\u1ec9 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t m\u00e0 c\u00f2n t\u0103ng \u0111\u1ed9 d\u1ebbo dai v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

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