{"id":115513,"date":"2021-12-24T14:44:02","date_gmt":"2021-12-24T06:44:02","guid":{"rendered":"https:\/\/www.alpapowder.com\/115513\/"},"modified":"2021-12-24T14:44:02","modified_gmt":"2021-12-24T06:44:02","slug":"ung-dung-va-tinh-trang-thi-truong-cua-talc","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/115513\/","title":{"rendered":"\u1ee8ng d\u1ee5ng v\u00e0 t\u00ecnh tr\u1ea1ng th\u1ecb tr\u01b0\u1eddng c\u1ee7a talc"},"content":{"rendered":"

C\u00f4ng th\u1ee9c ph\u00e2n t\u1eed c\u1ee7a b\u1ed9t talc l\u00e0 Mg3<\/sub>Si4<\/sub>O10<\/sub>(OH)2<\/sub>, v\u00e0 t\u00ean h\u00f3a h\u1ecdc l\u00e0 magi\u00ea metasilicat ng\u1eadm n\u01b0\u1edbc, h\u1ec7 \u0111\u01a1n ch\u1ea5t. Th\u00e0nh ph\u1ea7n l\u00fd thuy\u1ebft c\u1ee7a b\u1ed9t talc nguy\u00ean ch\u1ea5t l\u00e0 SiO2<\/sub>63,47%, MgO 31,68%, H2<\/sub>O\u00a04,75%.<\/p>\n

T\u00ednh ch\u1ea5t c\u1ee7a b\u1ed9t talc: b\u1ed9t talc nguy\u00ean ch\u1ea5t c\u00f3 m\u00e0u tr\u1eafng ho\u1eb7c h\u01a1i ng\u1ea3 v\u00e0ng, h\u1ed3ng, xanh nh\u1ea1t; n\u00f3i chung l\u00e0 kh\u1ed1i \u0111\u1eb7c, c\u00e1c t\u1eadp h\u1ee3p gi\u1ed1ng nh\u01b0 l\u00e1, d\u1ea1ng s\u1ee3i ho\u1eb7c xuy\u00ean t\u00e2m; th\u1ee7y tinh, trong m\u1edd; \u0111\u1ed9 c\u1ee9ng 1,0, tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang 2,58 ~ 2,83, \u0111i\u1ec3m n\u00f3ng ch\u1ea3y 800 \u00b0 C. V\u00ec b\u1ed9t talc c\u00f3 m\u00e0u tr\u1eafng, m\u1ec1m, kh\u00f4ng m\u00f9i, kh\u00f4ng v\u1ecb, \u1ed5n \u0111\u1ecbnh v\u1ec1 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc n\u00ean c\u00f3 t\u00ednh \u1ed5n \u0111\u1ecbnh cao, \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n th\u1ea5p, h\u1ea1t m\u1ecbn, c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 c\u1ea5u tr\u00fac d\u1ea1ng v\u1ea3y v\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang l\u1edbn.<\/p>\n

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C\u00e1c lo\u1ea1i ti\u1ec1n g\u1eedi talc<\/h4>\n

Theo ngu\u1ed3n g\u1ed1c \u0111\u1ecba ch\u1ea5t, ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c chia th\u00e0nh lo\u1ea1i bi\u1ebfn ch\u1ea5t nhi\u1ec7t d\u1ecbch cacbonat, lo\u1ea1i bi\u1ebfn ch\u1ea5t ti\u1ebfp x\u00fac, lo\u1ea1i bi\u1ebfn ch\u1ea5t \u0111\u1ed9ng l\u1ef1c tr\u1ea7m t\u00edch v\u00e0 lo\u1ea1i bi\u1ebfn ch\u1ea5t th\u1ee7y nhi\u1ec7t si\u00eau c\u01a1 b\u1ea3n.<\/p>\n

Theo lo\u1ea1i \u0111\u00e1 m\u1eb9 h\u00ecnh th\u00e0nh qu\u1eb7ng, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh b\u1ed1n lo\u1ea1i: magie cacbonat, serpentinit, \u0111\u00e1 silic \/ \u0111\u00e1 s\u00e1ng v\u00e0 \u0111\u00e1 tr\u1ea7m t\u00edch magie.<\/p>\n

Theo lo\u1ea1i qu\u1eb7ng, c\u00f3 th\u1ec3 chia th\u00e0nh b\u1ed1n lo\u1ea1i: talc c\u1ee5c, talc m\u1ec1m d\u1ea1ng v\u1ea3y, talc tremolit v\u00e0 talc h\u1ed7n h\u1ee3p.<\/p>\n

Tr\u1eef l\u01b0\u1ee3ng tri\u1ec3n v\u1ecdng c\u1ee7a talc tr\u00ean th\u1ebf gi\u1edbi l\u00e0 h\u01a1n 2 t\u1ef7 t\u1ea5n, tr\u1eef l\u01b0\u1ee3ng \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 kho\u1ea3ng 800 tri\u1ec7u t\u1ea5n. Ti\u1ec1n g\u1eedi talc (bao g\u1ed3m c\u1ea3 pyrophyllite) to\u00e0n c\u1ea7u \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 \u1edf h\u01a1n 40 qu\u1ed1c gia v\u00e0 khu v\u1ef1c, ch\u1ee7 y\u1ebfu \u1edf Hoa K\u1ef3, Brazil, Trung Qu\u1ed1c, \u1ea4n \u0110\u1ed9, Ph\u00e1p, Ph\u1ea7n Lan v\u00e0 Nga.<\/p>\n

\u1ee8ng d\u1ee5ng ch\u00ednh c\u1ee7a talc<\/h4>\n