![\"\"](\"https:\/\/www.alpapowder.com\/wp-content\/uploads\/2024\/08\/calcite.webp\")
<\/p>\n<\/p>\n
Canxi cacbonat l\u00e0 kho\u00e1ng ch\u1ea5t canxi cacbonat t\u1ef1 nhi\u00ean v\u00e0 l\u00e0 nguy\u00ean li\u1ec7u th\u00f4 ch\u00ednh \u0111\u1ec3 s\u1ea3n xu\u1ea5t canxi cacbonat n\u1eb7ng. H\u00e0m l\u01b0\u1ee3ng v\u00e0 t\u1ea1p ch\u1ea5t c\u1ee7a qu\u1eb7ng canxi l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ec9 s\u1ed1 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m canxi cacbonat n\u1eb7ng v\u00e0 c\u0169ng l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem \u0111\u00f3 l\u00e0 canxi cacbonat c\u1ea5p th\u1ef1c ph\u1ea9m v\u00e0 d\u01b0\u1ee3c ph\u1ea9m hay canxi cacbonat c\u1ea5p ch\u1ea5t \u0111\u1ed9n th\u00f4ng th\u01b0\u1eddng.<\/p>\n
1. H\u00e0m l\u01b0\u1ee3ng CaO
\nCaO l\u00e0 d\u1ea5u hi\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng duy nh\u1ea5t c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n h\u1eefu \u00edch c\u1ee7a qu\u1eb7ng. Trong c\u00e1c y\u00eau c\u1ea7u c\u1ee7a ng\u00e0nh s\u1ea3n xu\u1ea5t gi\u1ea5y, s\u01a1n, nh\u1ef1a, cao su v\u00e0 th\u1ef1c ph\u1ea9m, n\u00f3 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n b\u1eb1ng h\u00e0m l\u01b0\u1ee3ng CaCO3 (c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u1eeb h\u00e0m l\u01b0\u1ee3ng CaO).<\/p>\n
2. \u0110\u1ed9 tr\u1eafng
\n\u0110\u1ed9 tr\u1eafng l\u00e0 d\u1ea5u hi\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng v\u1eadt l\u00fd c\u1ee7a qu\u1eb7ng, li\u00ean quan \u0111\u1ebfn m\u00e0u s\u1eafc v\u00e0 \u0111\u1ed9 s\u00e1ng c\u1ee7a s\u1ea3n ph\u1ea9m ho\u00e0n thi\u1ec7n.<\/p>\n
3. Axit clohydric kh\u00f4ng tan
\nC\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a axit clohydric kh\u00f4ng tan (A.I.R) ch\u1ee7 y\u1ebfu bao g\u1ed3m silica t\u1ef1 do (fSiO2), silicat (nh\u00f4m) v\u00e0 oxit s\u1eaft v\u00e0 mangan, l\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 k\u1ebft h\u1ee3p \u0111a kho\u00e1ng ch\u1ea5t.<\/p>\n
4. H\u00e0m l\u01b0\u1ee3ng magi\u00ea v\u00e0 kim lo\u1ea1i ki\u1ec1m
\nMgO ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 h\u00e0m l\u01b0\u1ee3ng dolomit trong qu\u1eb7ng. Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p gi\u1ea5y v\u00e0 nh\u1ef1a, khi h\u00e0m l\u01b0\u1ee3ng dolomit nh\u1ecf h\u01a1n 3% (t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi MgO\u22640,65%), t\u00e1c \u0111\u1ed9ng kh\u00f4ng \u0111\u00e1ng k\u1ec3. Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u01a1n ph\u1ee7 v\u00e0 cao su, y\u00eau c\u1ea7u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c n\u1edbi l\u1ecfng xu\u1ed1ng 6% (t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi MgO\u22641,3%). MgO t\u1eeb talc v\u00e0 serpentin th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f3 t\u00e1c \u0111\u1ed9ng nh\u1ecf.<\/p>\n
5. H\u00e0m l\u01b0\u1ee3ng SiO2<\/a> 6. H\u00e0m l\u01b0\u1ee3ng Al2O3 7. H\u00e0m l\u01b0\u1ee3ng Fe2O3 8. H\u00e0m l\u01b0\u1ee3ng MnO 9. H\u00e0m l\u01b0\u1ee3ng c\u00f3 h\u1ea1i 10. H\u00e0m l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t t\u1ed1i 11. \u0110\u1ed9 v\u00e0ng v\u00e0 \u0111\u1ed9 trong su\u1ed1t Canxit l\u00e0 m\u1ed9t lo\u1ea1i kho\u00e1ng ch\u1ea5t canxi cacbonat t\u1ef1 nhi\u00ean v\u00e0 l\u00e0 nguy\u00ean li\u1ec7u ch\u00ednh \u0111\u1ec3 s\u1ea3n xu\u1ea5t canxi cacbonat n\u1eb7ng.<\/p>\n","protected":false},"author":7,"featured_media":133465,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-133502","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\/133502"}],"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=133502"}],"version-history":[{"count":1,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/133502\/revisions"}],"predecessor-version":[{"id":133503,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/133502\/revisions\/133503"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/133465"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=133502"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=133502"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=133502"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nSiO2<\/a>, c\u00e1c th\u1eed nghi\u1ec7m qu\u1eb7ng kh\u00e1c nhau cho th\u1ea5y n\u00f3 ch\u1ee7 y\u1ebfu \u0111\u1ebfn t\u1eeb fSiO2<\/a>, aluminosilicat v\u00e0 kho\u00e1ng ch\u1ea5t silicat. Trong s\u1ed1 \u0111\u00f3, kho\u00e1ng ch\u1ea5t silicat ch\u1ee7 y\u1ebfu l\u00e0 wollastonit, c\u00f3 \u0111\u1ed9 c\u1ee9ng kh\u00e1c bi\u1ec7t nh\u1ea5t \u0111\u1ecbnh so v\u1edbi canxit v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a k\u00edch th\u01b0\u1edbc h\u1ea1t s\u1ea3n ph\u1ea9m. R\u1eeda b\u1eb1ng n\u01b0\u1edbc c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf m\u1ed9t s\u1ed1 Si, Al v\u00e0 Fe trong canxit v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tr\u1eafng c\u1ee7a qu\u1eb7ng.<\/p>\n
\nAl2O3 ch\u1ee7 y\u1ebfu c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb kho\u00e1ng v\u1eadt aluminosilicat v\u00e0 l\u00e0 m\u1ed9t trong nh\u1eefng th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a axit clohydric kh\u00f4ng tan. Gi\u00e1 tr\u1ecb cho ph\u00e9p kh\u00f4ng \u0111\u01b0\u1ee3c l\u1edbn h\u01a1n gi\u00e1 tr\u1ecb gi\u1edbi h\u1ea1n c\u1ee7a axit clohydric kh\u00f4ng tan.<\/p>\n
\nFe2O3 l\u00e0 th\u00e0nh ph\u1ea7n t\u1ea1o m\u00e0u v\u00e0 h\u00e0m l\u01b0\u1ee3ng c\u1ee7a n\u00f3 c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn m\u00e0u s\u1eafc c\u1ee7a s\u1ea3n ph\u1ea9m. Theo kinh nghi\u1ec7m c\u1ee7a ng\u00e0nh, Fe2O3\u22640,3% kh\u00f4ng c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 v\u00e0 Fe2O3\u22640,1% h\u1ea7u nh\u01b0 kh\u00f4ng c\u00f3 t\u00e1c \u0111\u1ed9ng. Fe2+ t\u1ed3n t\u1ea1i trong nhi\u1ec1u kho\u00e1ng ch\u1ea5t. N\u1ebfu gi\u00e1 c\u1ee7a n\u00f3 thay \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn ho\u1eb7c s\u1eed d\u1ee5ng, c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3.<\/p>\n
\nMnO trong qu\u1eb7ng canxit ch\u1ee7 y\u1ebfu c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb oxit mangan, kho\u00e1ng v\u1eadt cacbonat v\u00e0 kho\u00e1ng v\u1eadt silicat. MnO s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tr\u1eafng. Kh\u00f4ng c\u00f3 y\u00eau c\u1ea7u n\u00e0o \u0111\u1ed1i v\u1edbi mangan trong c\u00e1c ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p hi\u1ec7n h\u00e0nh. Trong c\u00e1c ch\u1ec9 s\u1ed1 tr\u01b0\u1edbc \u0111\u00e2y, \u1ee9ng d\u1ee5ng trong ng\u00e0nh cao su \u0111\u00f2i h\u1ecfi ph\u1ea3i ki\u1ec3m so\u00e1t h\u00e0m l\u01b0\u1ee3ng c\u1ee7a n\u00f3.<\/p>\n
\nKim lo\u1ea1i n\u1eb7ng, bari, flo, asen, ki\u1ec1m t\u1ef1 do (kim lo\u1ea1i ki\u1ec1m + magie), l\u01b0u hu\u1ef3nh v\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 kh\u00e1c. C\u00e1c ch\u1ec9 s\u1ed1 n\u00e0y c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 \u0111\u1ec3 s\u1eed d\u1ee5ng l\u00e0m ph\u1ee5 gia th\u1ef1c ph\u1ea9m, s\u1ea3n xu\u1ea5t kem \u0111\u00e1nh r\u0103ng v\u00e0 gi\u1ea5y \u0111\u00f3ng g\u00f3i th\u1ef1c ph\u1ea9m ho\u1eb7c cho c\u00e1c s\u1ea3n ph\u1ea9m cao su v\u00e0 nh\u1ef1a v\u00e0 ch\u1ea5t \u0111\u1ed9n ph\u1ee7 c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe.<\/p>\n
\nH\u00e0m l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t t\u1ed1i v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t c\u00f3 t\u00e1c \u0111\u1ed9ng nh\u1ea5t \u0111\u1ecbnh \u0111\u1ebfn \u0111\u1ed9 tr\u1eafng. Trong \u0111i\u1ec1u ki\u1ec7n hi\u1ec7n t\u1ea1i, n\u00ean ti\u1ebfn h\u00e0nh th\u1ed1ng k\u00ea \u0111\u1ecbnh t\u00ednh v\u1ec1 h\u00e0m l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t t\u1ed1i v\u00e0 c\u00e1c h\u1ea1t \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 xem n\u00f3 c\u00f3 ph\u00f9 h\u1ee3p \u0111\u1ec3 x\u1eed l\u00fd si\u00eau m\u1ecbn hay kh\u00f4ng. Khi h\u00e0m l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t t\u1ed1i trong canxi cacbonat n\u1eb7ng cho ng\u00e0nh s\u1ea3n xu\u1ea5t gi\u1ea5y v\u01b0\u1ee3t qu\u00e1 m\u1ed9t h\u00e0m l\u01b0\u1ee3ng nh\u1ea5t \u0111\u1ecbnh, th\u00ec n\u00ean s\u1eed d\u1ee5ng l\u00e0m ch\u1ec9 s\u1ed1 \u0111\u00e1nh gi\u00e1. Nh\u00ecn chung, y\u00eau c\u1ea7u kh\u00f4ng \u0111\u01b0\u1ee3c ch\u1ee9a qu\u00e1 5 h\u1ea1t t\u1ea1p ch\u1ea5t t\u1ed1i trong m\u1ed7i gam m\u1eabu.<\/p>\n
\n\u0110\u1ed9 tr\u1eafng hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u1ed9 tr\u1eafng \u00e1nh s\u00e1ng xanh, th\u1ef1c ch\u1ea5t l\u00e0 \u0111\u1ed9 s\u00e1ng c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 kh\u00f4ng th\u1ec3 ph\u1ea3n \u00e1nh t\u1ed1t s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 m\u00e0u s\u1eafc c\u1ee7a v\u1eadt li\u1ec7u. Do \u0111\u00f3, canxi cacbonat n\u1eb7ng d\u00f9ng l\u00e0m gi\u1ea5y c\u1ea7n \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 v\u00e0ng v\u00e0 \u0111\u1ed9 trong su\u1ed1t. Ng\u00e0nh s\u1ea3n xu\u1ea5t gi\u1ea5y hy v\u1ecdng \u0111\u1ed9 v\u00e0ng th\u1ea5p, \u0111\u1ed9 trong su\u1ed1t th\u1ea5p, \u0111\u1ed9 ph\u1ee7 t\u1ed1t. Canxit c\u00f3 \u0111\u1ed9 tr\u1eafng cao th\u01b0\u1eddng c\u00f3 \u0111\u1ed9 trong su\u1ed1t t\u1ed1t.<\/p>\n","protected":false},"excerpt":{"rendered":"