{"id":134389,"date":"2024-09-27T09:20:55","date_gmt":"2024-09-27T01:20:55","guid":{"rendered":"https:\/\/www.alpapowder.com\/134389\/"},"modified":"2024-09-27T09:20:55","modified_gmt":"2024-09-27T01:20:55","slug":"6-dang-tinh-the-cua-canxi-cacbonat","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/134389\/","title":{"rendered":"6 d\u1ea1ng tinh th\u1ec3 c\u1ee7a canxi cacbonat"},"content":{"rendered":"

\"\"<\/p>\n

Canxi cacbonat c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh d\u1ea1ng kh\u1ed1i, d\u1ea1ng tr\u1ee5c, d\u1ea1ng chu\u1ed7i, d\u1ea1ng c\u1ea7u, d\u1ea1ng v\u1ea3y, d\u1ea1ng kim, v.v. theo d\u1ea1ng tinh th\u1ec3. C\u00e1c d\u1ea1ng canxi cacbonat kh\u00e1c nhau c\u00f3 c\u00e1c l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng v\u00e0 ch\u1ee9c n\u0103ng kh\u00e1c nhau.<\/p>\n

Do \u0111\u00f3, \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau \u0111\u1ed1i v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m canxi cacbonat tinh th\u1ec3 kh\u00e1c nhau, c\u1ea7n s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t d\u1ea1ng tinh th\u1ec3 \u0111\u1ec3 ki\u1ec3m so\u00e1t qu\u00e1 tr\u00ecnh k\u1ebft tinh c\u1ee7a canxi cacbonat \u0111\u1ec3 t\u1ea1o ra c\u00e1c s\u1ea3n ph\u1ea9m c\u00f3 d\u1ea1ng tinh th\u1ec3 kh\u00e1c nhau.<\/p>\n

1. Canxi cacbonat kh\u1ed1i<\/p>\n

C\u00e1i g\u1ecdi l\u00e0 kh\u1ed1i l\u00e0 canxi cacbonat c\u00f3 tinh th\u1ec3 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb d\u01b0\u1edbi d\u1ea1ng kh\u1ed1i d\u01b0\u1edbi k\u00ednh hi\u1ec3n vi \u0111i\u1ec7n t\u1eed truy\u1ec1n qua.<\/p>\n

S\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p cho th\u1ea5y trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t natri canxi cacbonat b\u1eb1ng c\u00f4ng ngh\u1ec7 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, kh\u00f4ng c\u1ea7n th\u00eam b\u1ea5t k\u1ef3 t\u00e1c nh\u00e2n ki\u1ec3m so\u00e1t d\u1ea1ng tinh th\u1ec3 n\u00e0o, vi\u1ec7c ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 cacbon h\u00f3a c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m canxi cacbonat kh\u1ed1i. C\u1ea5u tr\u00fac tinh th\u1ec3 c\u1ee7a canxi cacbonat k\u1ebft t\u1ee7a ph\u1ee5 thu\u1ed9c ph\u1ea7n l\u1edbn v\u00e0o nhi\u1ec7t \u0111\u1ed9 h\u00ecnh th\u00e0nh. Mi\u1ec5n l\u00e0 nhi\u1ec7t \u0111\u1ed9 h\u00ecnh th\u00e0nh h\u1ea1t nh\u00e2n tinh th\u1ec3 th\u1ea5p h\u01a1n 30\u00b0C, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c cacbon h\u00f3a th\u00e0nh canxi cacbonat kh\u1ed1i.<\/p>\n

2. Canxi cacbonat h\u00ecnh hoa h\u1ed3ng v\u00e0 h\u00ecnh thoi<\/p>\n

Canxi cacbonat h\u00ecnh hoa h\u1ed3ng v\u00e0 h\u00ecnh thoi th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t gi\u1ea5y, cao su, nh\u1ef1a, s\u01a1n ph\u1ee7 v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong gi\u1ea5y thu\u1ed1c l\u00e1 cao c\u1ea5p, c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t ch\u00e1y v\u00e0 \u0111\u1ed9 th\u1ea5m kh\u00ed c\u1ee7a gi\u1ea5y thu\u1ed1c l\u00e1.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p ch\u00ednh \u0111\u1ec3 s\u1ea3n xu\u1ea5t canxi cacbonat h\u00ecnh thoi \u1edf n\u01b0\u1edbc t\u00f4i l\u00e0: \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, n\u1ed3ng \u0111\u1ed9 s\u1eefa v\u00f4i \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf m\u1ee9c kho\u1ea3ng 35% (t\u1ef7 l\u1ec7 tr\u1ecdng l\u01b0\u1ee3ng) v\u00e0 30-40% (t\u1ef7 l\u1ec7 th\u1ec3 t\u00edch) kh\u00ed h\u1ed7n h\u1ee3p CO2 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o l\u00f2 ph\u1ea3n \u1ee9ng \u0111\u1ec3 cacbon h\u00f3a. Qu\u00e1 tr\u00ecnh cacbon h\u00f3a \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng. Do ph\u1ea3n \u1ee9ng t\u1ecfa nhi\u1ec7t, nhi\u1ec7t \u0111\u1ed9 c\u1ee7a l\u00f2 ph\u1ea3n \u1ee9ng t\u0103ng t\u1eeb nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng l\u00ean kho\u1ea3ng 75\u00b0C. H\u00ecnh th\u00e1i c\u1ee7a s\u1ea3n ph\u1ea9m ch\u1ee7 y\u1ebfu l\u00e0 h\u00ecnh thoi v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t th\u01b0\u1eddng l\u00e0 v\u00e0i micron.<\/p>\n

3. Canxi cacbonat d\u1ea1ng chu\u1ed7i<\/p>\n

Canxi cacbonat si\u00eau m\u1ecbn d\u1ea1ng chu\u1ed7i bao g\u1ed3m m\u1ed9t v\u00e0i \u0111\u1ebfn h\u00e0ng ch\u1ee5c h\u1ea1t canxi cacbonat m\u1ecbn k\u1ebft n\u1ed1i v\u1edbi nhau v\u00e0 c\u00f3 c\u1ea5u tr\u00fac chu\u1ed7i. V\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n t\u1ed5ng h\u1ee3p kh\u00e1c nhau, s\u1ebd c\u00f3 c\u00e1c k\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 t\u1ef7 l\u1ec7 kh\u00eda c\u1ea1nh kh\u00e1c nhau.
\nCanxi cacbonat si\u00eau m\u1ecbn d\u1ea1ng chu\u1ed7i c\u00f3 t\u00e1c d\u1ee5ng gia c\u01b0\u1eddng tuy\u1ec7t v\u1eddi \u0111\u1ed1i v\u1edbi cao su thi\u00ean nhi\u00ean v\u00e0 cao su t\u1ed5ng h\u1ee3p. L\u00e0 ch\u1ea5t \u0111\u1ed9n gia c\u01b0\u1eddng, n\u00f3 c\u00f3 th\u1ec3 thay th\u1ebf m\u1ed9t ph\u1ea7n mu\u1ed9i than ho\u1eb7c mu\u1ed9i than tr\u1eafng, gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 chi ph\u00ed s\u1ea3n xu\u1ea5t. Ngo\u00e0i ra, canxi cacbonat si\u00eau m\u1ecbn d\u1ea1ng chu\u1ed7i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t ph\u1ee5 gia trong ng\u00e0nh s\u01a1n ph\u1ee7, s\u1ea3n xu\u1ea5t gi\u1ea5y v\u00e0 nh\u1ef1a, cho th\u1ea5y hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi v\u00e0 c\u00f3 tri\u1ec3n v\u1ecdng \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i.<\/p>\n

C\u00f3 nhi\u1ec1u b\u00e1o c\u00e1o v\u1ec1 qu\u00e1 tr\u00ecnh t\u1ed5ng h\u1ee3p canxi cacbonat d\u1ea1ng chu\u1ed7i, nh\u01b0ng ph\u01b0\u01a1ng ph\u00e1p chung l\u00e0 th\u00eam b\u1ed9 \u0111i\u1ec1u khi\u1ec3n h\u00ecnh d\u1ea1ng tinh th\u1ec3 \u0111\u1ec3 ki\u1ec3m so\u00e1t s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a nh\u00e2n tinh th\u1ec3 khi huy\u1ec1n ph\u00f9 Ca(OH)2 tr\u1edf th\u00e0nh nh\u0169 t\u01b0\u01a1ng keo nh\u1edbt \u1edf gi\u1eefa qu\u00e1 tr\u00ecnh cacbon h\u00f3a. C\u00e1c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n h\u00ecnh d\u1ea1ng tinh th\u1ec3 ch\u00ednh l\u00e0 mu\u1ed1i magi\u00ea, mu\u1ed1i kali, natri polyphosphat, mu\u1ed1i kim lo\u1ea1i h\u00f2a tan trong n\u01b0\u1edbc v\u00e0 t\u00e1c nh\u00e2n t\u1ea1o ph\u1ee9c.<\/p>\n

4. Canxi cacbonat h\u00ecnh c\u1ea7u<\/p>\n

Do c\u00f3 \u0111\u1ed9 m\u1ecbn, \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng, kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t, canxi cacbonat nano h\u00ecnh c\u1ea7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong cao su, s\u01a1n ph\u1ee7, m\u1ef1c in, thu\u1ed1c, kem \u0111\u00e1nh r\u0103ng v\u00e0 m\u1ef9 ph\u1ea9m.<\/p>\n

Canxi cacbonat h\u00ecnh c\u1ea7u th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o b\u1eb1ng ph\u1ea3n \u1ee9ng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p c\u1ee7a mu\u1ed1i canxi v\u00e0 cacbonat trong dung d\u1ecbch ki\u1ec1m c\u00f4 \u0111\u1eb7c. C\u00e1c ch\u1ea5t \u0111i\u1ec1u khi\u1ec3n h\u00ecnh d\u1ea1ng tinh th\u1ec3 ch\u00ednh l\u00e0 mu\u1ed1i magi\u00ea, mu\u1ed1i kali v\u00e0 natri polyphosphate.<\/p>\n

5. Canxi cacbonat d\u1ea1ng v\u1ea3y<\/p>\n

Canxi cacbonat d\u1ea1ng v\u1ea3y th\u00edch h\u1ee3p cho ng\u00e0nh s\u1ea3n xu\u1ea5t gi\u1ea5y v\u00e0 c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t gi\u1ea5y c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 m\u1ef1c, \u0111\u1ed9 tr\u1eafng, kh\u1ea3 n\u0103ng in v\u00e0 \u0111\u1ed9 m\u1ecbn tuy\u1ec7t v\u1eddi. L\u00e0 ch\u1ea5t \u0111\u1ed9n v\u00e0 ch\u1ea5t gia c\u01b0\u1eddng, canxi cacbonat d\u1ea1ng v\u1ea3y c\u00f3 \u0111\u1ed9 m\u1ecbn, \u0111\u1ed9 b\u00f3ng, \u0111i\u1ec7n tr\u1edf su\u1ea5t v\u00e0 h\u1ec7 s\u1ed1 \u0111\u00e0n h\u1ed3i cao trong h\u1ed7n h\u1ee3p do s\u1ef1 s\u1eafp x\u1ebfp kh\u00f4ng theo quy \u01b0\u1edbc c\u1ee7a n\u00f3.<\/p>\n

Khi canxi cacbonat nano d\u1ea1ng v\u1ea3y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho b\u1ed9t m\u00e0u gi\u1ea5y tr\u00e1ng, n\u00f3 cho th\u1ea5y \u0111\u1ed9 l\u01b0u \u0111\u1ed9ng v\u00e0 kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n t\u1ed1t, v\u00e0 c\u00f3 \u0111\u1ed9 b\u00f3ng v\u00e0 \u0111\u1ed9 m\u1ecbn t\u1ed1t h\u01a1n so v\u1edbi canxi cacbonat nh\u1eb9 PCC tr\u1ee5c ch\u00ednh th\u00f4ng th\u01b0\u1eddng.<\/p>\n

6. Canxi cacbonat d\u1ea1ng kim<\/p>\n

Canxi cacbonat d\u1ea1ng kim c\u00f3 t\u1ef7 l\u1ec7 kh\u00eda c\u1ea1nh l\u1edbn. N\u00f3 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp v\u00e0 \u0111\u1ed9 b\u1ec1n u\u1ed1n c\u1ee7a nh\u1ef1a khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n cho nh\u1ef1a; hi\u1ec7u \u1ee9ng gia c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 h\u01a1n khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong cao su.<\/p>\n","protected":false},"excerpt":{"rendered":"

Canxi cacbonat c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh d\u1ea1ng tinh th\u1ec3 kh\u1ed1i, d\u1ea1ng tr\u1ee5c, d\u1ea1ng chu\u1ed7i, d\u1ea1ng c\u1ea7u, d\u1ea1ng v\u1ea3y, d\u1ea1ng kim, v.v. theo d\u1ea1ng tinh th\u1ec3. C\u00e1c d\u1ea1ng canxi cacbonat kh\u00e1c nhau c\u00f3 c\u00e1c l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng v\u00e0 ch\u1ee9c n\u0103ng kh\u00e1c nhau.<\/p>\n","protected":false},"author":7,"featured_media":134352,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-134389","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghiep-tin-tuc-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/134389"}],"collection":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=134389"}],"version-history":[{"count":1,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/134389\/revisions"}],"predecessor-version":[{"id":134390,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/134389\/revisions\/134390"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/134352"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=134389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=134389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=134389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}