![\"\"](\"https:\/\/www.alpapowder.com\/wp-content\/uploads\/2023\/07\/mica.jpeg\")
<\/p>\n<\/p>\n
Mica l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef chung cho c\u00e1c kho\u00e1ng ch\u1ea5t nh\u00f3m mica. N\u00f3 l\u00e0 m\u1ed9t aluminosilicat c\u1ee7a c\u00e1c kim lo\u1ea1i nh\u01b0 kali, magi\u00ea, s\u1eaft v\u00e0 lithium. C\u1ea5u tr\u00fac l\u00e0 t\u1ea5t c\u1ea3 c\u00e1c l\u1edbp. X\u00e9t t\u1eeb g\u00f3c \u0111\u1ed9 h\u00ecnh th\u00e0nh c\u00f3 th\u1ec3 chia mica th\u00e0nh 2 lo\u1ea1i l\u00e0 mica t\u1ef1 nhi\u00ean v\u00e0 mica nh\u00e2n t\u1ea1o. C\u00e1c m\u1ecf mica t\u1ef1 nhi\u00ean ch\u1ee7 y\u1ebfu bao g\u1ed3m biotite, phlogopite, muscovite, lepidolite, sericite, mica xanh, lepidolite s\u1eaft, v.v. Muscovite, sericite, phlogopite v\u00e0 lepidolite \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t trong c\u00f4ng nghi\u1ec7p. Mica t\u1ed5ng h\u1ee3p l\u00e0 th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c ng\u01b0\u1eddi ta l\u00e0m gi\u1ea3 mica. C\u00e1c oxit kim lo\u1ea1i \u0111\u01b0\u1ee3c tr\u1ed9n theo m\u1ed9t t\u1ef7 l\u1ec7 nh\u1ea5t \u0111\u1ecbnh r\u1ed3i n\u1ea5u ch\u1ea3y \u1edf nhi\u1ec7t \u0111\u1ed9 cao. Trong qu\u00e1 tr\u00ecnh l\u00e0m ngu\u1ed9i, ch\u00fang k\u1ebft tinh l\u1ea1i t\u1ea1o th\u00e0nh tinh th\u1ec3 mica tinh khi\u1ebft.<\/p>\n
1. Muscovite<\/p>\n
Muscovite \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t trong c\u00f4ng nghi\u1ec7p. B\u1ed9t mica si\u00eau m\u1ecbn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n ch\u1ee9c n\u0103ng trong nh\u1ef1a, s\u01a1n, s\u01a1n, cao su, v.v., c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc, t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 d\u1ebbo dai, \u0111\u1ed9 b\u00e1m d\u00ednh, ch\u1ed1ng l\u00e3o h\u00f3a v\u00e0 ch\u1ed1ng \u0103n m\u00f2n. Trong c\u00f4ng nghi\u1ec7p, n\u00f3 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u00e1ch nhi\u1ec7t v\u00e0 ch\u1ecbu nhi\u1ec7t, c\u0169ng nh\u01b0 kh\u00e1ng axit, kh\u00e1ng ki\u1ec1m, kh\u00e1ng n\u00e9n v\u00e0 \u0111\u1eb7c t\u00ednh bong tr\u00f3c, v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n cho thi\u1ebft b\u1ecb \u0111i\u1ec7n v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n; th\u1ee9 hai, n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t n\u1ed3i h\u01a1i v\u00e0 l\u00f2 nung cho c\u1eeda s\u1ed5 l\u00f2 luy\u1ec7n kim v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn c\u01a1 kh\u00ed. Chip mica v\u00e0 b\u1ed9t mica c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd th\u00e0nh gi\u1ea5y mica, \u0111\u1ed3ng th\u1eddi c\u00f3 th\u1ec3 thay th\u1ebf t\u1ea5m mica \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t v\u1edbi chi ph\u00ed th\u1ea5p v\u00e0 \u0111\u1ed9 d\u00e0y \u0111\u1ed3ng \u0111\u1ec1u.<\/p>\n
2. Sericit<\/p>\n
C\u00e1c t\u1eadp h\u1ee3p kho\u00e1ng ch\u1ea5t c\u1ee7a sericit c\u00f3 m\u00e0u h\u1ed3ng, \u0111\u1ecf th\u1ecbt, xanh x\u00e1m, t\u00edm x\u00e1m nh\u1ea1t, x\u00e1m x\u00e1m \u0111\u1eadm, v.v. Nh\u01b0ng b\u1ed9t m\u00e0u tr\u1eafng. Khi s\u1eaft \u0111i v\u00e0o m\u1ea1ng tinh th\u1ec3, b\u1ed9t c\u00f3 m\u00e0u tr\u1eafng x\u00e1m v\u00e0 \u0111\u1ed9 tr\u1eafng gi\u1ea3m theo. Sericit \u1edf d\u1ea1ng v\u1ea3y m\u1ecbn (th\u01b0\u1eddng <0,01mm) v\u00e0 c\u00f3 c\u1ea3m gi\u00e1c tr\u01a1n tr\u01b0\u1ee3t r\u00f5 r\u1ec7t. Sericit c\u00f3 \u00e1nh l\u1ee5a m\u1ea1nh m\u1ebd, trong su\u1ed1t \u0111\u1ebfn m\u1edd. N\u00f3 c\u00f3 t\u1ed1c \u0111\u1ed9 truy\u1ec1n \u00e1nh s\u00e1ng v\u00e0 \u0111\u1ed9 che ph\u1ee7 v\u1eeba ph\u1ea3i, \u0111\u1ed3ng th\u1eddi c\u00f3 kh\u1ea3 n\u0103ng ph\u1ea3n x\u1ea1 tia c\u1ef1c t\u00edm. C\u00e1c thu\u1ed9c t\u00ednh tr\u00ean x\u00e1c \u0111\u1ecbnh t\u00ednh \u0111\u1ed9c \u0111\u00e1o c\u1ee7a \u1ee9ng d\u1ee5ng sericite. B\u1edfi v\u00ec sericite th\u01b0\u1eddng \u1edf d\u1ea1ng v\u1ea3y nh\u1ecf, n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u01a1n, c\u00f4ng nghi\u1ec7p gi\u1ea5y, c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t h\u00e0ng ng\u00e0y v\u00e0 c\u00f4ng nghi\u1ec7p cao su v\u00e0 nh\u1ef1a.<\/p>\n
3. Phlogopit<\/p>\n
Phlogopite t\u1ef1 nhi\u00ean c\u00f3 phlogopite t\u1ed1i v\u00e0 phlogopite nh\u1eb9. Phlogopite \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng b\u1edfi s\u1ef1 ph\u00e2n c\u1eaft ho\u00e0n to\u00e0n c\u1ee7a mica, c\u00f3 m\u00e0u v\u00e0ng n\u00e2u v\u00e0 ph\u1ea3n x\u1ea1 gi\u1ed1ng nh\u01b0 v\u00e0ng. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng, c\u00f4ng nghi\u1ec7p ph\u00f2ng ch\u00e1y ch\u1eefa ch\u00e1y, ch\u1ea5t ch\u1eefa ch\u00e1y, que h\u00e0n, nh\u1ef1a, c\u00e1ch \u0111i\u1ec7n, l\u00e0m gi\u1ea5y, gi\u1ea5y nh\u1ef1a \u0111\u01b0\u1eddng, cao su, s\u1eafc t\u1ed1 ng\u1ecdc trai v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t kh\u00e1c.<\/p>\n
4. Mica t\u1ed5ng h\u1ee3p<\/p>\n
Mica t\u1ed5ng h\u1ee3p, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 flo phlogopite, \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch b\u1eaft ch\u01b0\u1edbc th\u00e0nh ph\u1ea7n v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a mica t\u1ef1 nhi\u00ean, \u0111\u1ed3ng th\u1eddi s\u1eed d\u1ee5ng th\u1ea1ch anh v\u00e0 c\u00e1c nguy\u00ean li\u1ec7u th\u00f4 kh\u00e1c th\u00f4ng qua qu\u00e1 tr\u00ecnh n\u00f3ng ch\u1ea3y \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 k\u1ebft tinh \u1edf nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i. So v\u1edbi mica t\u1ef1 nhi\u00ean, mica t\u1ed5ng h\u1ee3p \u00edt b\u1ecb h\u1ea1n ch\u1ebf b\u1edfi \u0111i\u1ec1u ki\u1ec7n t\u00e0i nguy\u00ean thi\u00ean nhi\u00ean, c\u1ea5u tr\u00fac g\u1ea7n gi\u1ed1ng mica t\u1ef1 nhi\u00ean, \u0111\u1ed9 tinh khi\u1ebft, trong su\u1ed1t, c\u00e1ch \u0111i\u1ec7n v\u00e0 ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao t\u1ed1t h\u01a1n mica t\u1ef1 nhi\u00ean n\u00ean ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p . Thay th\u1ebf ho\u1eb7c th\u1eadm ch\u00ed v\u01b0\u1ee3t qua mica t\u1ef1 nhi\u00ean, n\u00f3 c\u00f3 s\u1ee9c s\u1ed1ng m\u1ea1nh m\u1ebd v\u00e0 tri\u1ec3n v\u1ecdng ph\u00e1t tri\u1ec3n. N\u00f3 l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u m\u1edbi c\u1ee7a c\u00e1c tinh th\u1ec3 phi kim lo\u1ea1i d\u1ec5 v\u1ee1 \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p nh\u00e2n t\u1ea1o c\u00f3 \u00fd ngh\u0129a chi\u1ebfn l\u01b0\u1ee3c. M\u1ee5c \u0111\u00edch ch\u00ednh hi\u1ec7n nay c\u1ee7a mica t\u1ed5ng h\u1ee3p l\u00e0 nghi\u1ec1n mica th\u00e0nh b\u1ed9t mica v\u1edbi nhi\u1ec1u k\u00edch c\u1ee1 h\u1ea1t kh\u00e1c nhau. C\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 bao g\u1ed3m s\u01a1n, cao su, nh\u1ef1a, gi\u1ea5y mica, g\u1ed1m mica, v\u1eadt li\u1ec7u h\u1ea5p th\u1ee5 s\u00f3ng t\u1ed5ng h\u1ee3p \u0111\u1eb7c bi\u1ec7t, t\u1ea5m s\u01b0\u1edfi \u0111i\u1ec7n mica t\u1ed5ng h\u1ee3p, g\u1ed1m c\u00f3 th\u1ec3 gia c\u00f4ng v\u00e0 s\u1eafc t\u1ed1 ng\u1ecdc trai mica t\u1ed5ng h\u1ee3p v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c.<\/p>\n
\u01afu \u0111i\u1ec3m c\u1ee7a m\u00e0i kh\u00f4<\/p>\n
1. Quy tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u01a1n gi\u1ea3n, kh\u00f4ng c\u00f3 thi\u1ebft b\u1ecb qu\u00e1 m\u1ee9c v\u00e0 d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t d\u00e0i;<\/p>\n
2. Kh\u00f4ng c\u1ea7n n\u01b0\u1edbc v\u00e0 n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t, nhu c\u1ea7u n\u0103ng l\u01b0\u1ee3ng \u00edt h\u01a1n;<\/p>\n
3. So v\u1edbi ph\u01b0\u01a1ng ph\u00e1p \u01b0\u1edbt, gi\u00e1 c\u1ee7a s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng th\u1ea5p v\u00e0 hi\u1ec7u su\u1ea5t chi ph\u00ed cao h\u01a1n \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m c\u1ea5p ch\u1ea5t \u0111\u1ed9n \u00edt \u0111\u00f2i h\u1ecfi kh\u1eaft khe h\u01a1n;<\/p>\n
4. Hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i cao h\u01a1n so v\u1edbi ph\u01b0\u01a1ng ph\u00e1p \u01b0\u1edbt.<\/p>\n","protected":false},"excerpt":{"rendered":"
Mica t\u1ed5ng h\u1ee3p l\u00e0 th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c ng\u01b0\u1eddi ta l\u00e0m gi\u1ea3 mica. C\u00e1c oxit kim lo\u1ea1i \u0111\u01b0\u1ee3c tr\u1ed9n theo m\u1ed9t t\u1ef7 l\u1ec7 nh\u1ea5t \u0111\u1ecbnh r\u1ed3i n\u1ea5u ch\u1ea3y \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/p>\n","protected":false},"author":7,"featured_media":127923,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-127965","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\/127965","targetHints":{"allow":["GET"]}}],"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=127965"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/127965\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/127923"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=127965"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=127965"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=127965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}