{"id":14751,"date":"2024-08-08T03:21:12","date_gmt":"2024-08-08T03:21:12","guid":{"rendered":"https:\/\/www.epicmicron.com\/?p=14751"},"modified":"2024-11-07T02:00:09","modified_gmt":"2024-11-07T02:00:09","slug":"what-high-end-applications-does-limestone-have-besides-producing-cement","status":"publish","type":"post","link":"https:\/\/www.epicmicron.com\/vi\/what-high-end-applications-does-limestone-have-besides-producing-cement\/","title":{"rendered":"\u0110\u00e1 v\u00f4i c\u00f2n c\u00f3 \u1ee9ng d\u1ee5ng cao c\u1ea5p n\u00e0o ngo\u00e0i vi\u1ec7c s\u1ea3n xu\u1ea5t xi m\u0103ng?"},"content":{"rendered":"<p>\u0110\u00e1 v\u00f4i l\u00e0 nguy\u00ean li\u1ec7u ch\u00ednh cho <a href=\"https:\/\/en.wikipedia.org\/wiki\/Cement\">xi m\u0103ng<\/a> s\u1ea3n xu\u1ea5t. C\u1ea7n kho\u1ea3ng 1,4 \u0111\u1ebfn 1,5 t\u1ea5n \u0111\u00e1 v\u00f4i \u0111\u1ec3 s\u1ea3n xu\u1ea5t 1 t\u1ea5n clinker xi m\u0103ng. Theo s\u1ed1 li\u1ec7u c\u1ee7a C\u1ee5c Th\u1ed1ng k\u00ea Qu\u1ed1c gia, s\u1ea3n l\u01b0\u1ee3ng xi m\u0103ng c\u1ee7a Trung Qu\u1ed1c \u0111\u00e3 v\u01b0\u1ee3t qu\u00e1 2,3 t\u1ef7 t\u1ea5n v\u00e0o n\u0103m 2019 v\u00e0 l\u01b0\u1ee3ng ti\u00eau th\u1ee5 \u0111\u00e1 v\u00f4i h\u00e0ng n\u0103m v\u01b0\u1ee3t qu\u00e1 2,8 t\u1ef7 t\u1ea5n.<\/p>\n\n\n\n<p>H\u01a1n n\u1eefa, c\u00e1c doanh nghi\u1ec7p trung \u01b0\u01a1ng, doanh nghi\u1ec7p nh\u00e0 n\u01b0\u1edbc v\u00e0 c\u00e1c doanh nghi\u1ec7p t\u01b0 nh\u00e2n l\u1edbn chi ph\u1ed1i h\u01a1n 80% c\u1ee7a ng\u00e0nh xi m\u0103ng. C\u00e1c th\u1ef1c th\u1ec3 n\u00e0y ki\u1ec3m so\u00e1t h\u01a1n 90% quy\u1ec1n khai th\u00e1c t\u00e0i nguy\u00ean \u0111\u00e1 v\u00f4i. K\u1ebft qu\u1ea3 l\u00e0, h\u01a1n 90% t\u00e0i nguy\u00ean \u0111\u00e1 v\u00f4i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho s\u1ea3n xu\u1ea5t xi m\u0103ng gi\u00e1 tr\u1ecb th\u1ea5p, d\u1eabn \u0111\u1ebfn l\u00e3ng ph\u00ed \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n<p>V\u1eady, ngo\u00e0i vi\u1ec7c s\u1ea3n xu\u1ea5t xi m\u0103ng, \u0111\u00e1 v\u00f4i c\u00f2n c\u00f3 nh\u1eefng \u1ee9ng d\u1ee5ng cao c\u1ea5p n\u00e0o kh\u00e1c?<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"700\" height=\"525\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/limestone.webp\" alt=\"\" class=\"wp-image-14752\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/limestone.webp 700w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/limestone-300x225.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/limestone-16x12.webp 16w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/limestone-600x450.webp 600w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>S\u1ea3n xu\u1ea5t canxi oxit<\/strong><\/h2>\n\n\n\n<p>Canxi oxit, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 v\u00f4i s\u1ed1ng, thu \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch nung \u0111\u00e1 v\u00f4i \u1edf nhi\u1ec7t \u0111\u1ed9 cao. N\u00f3 c\u00f3 hai d\u1ea1ng: d\u1ea1ng kh\u1ed1i v\u00e0 d\u1ea1ng b\u1ed9t. D\u1ef1a tr\u00ean h\u00e0m l\u01b0\u1ee3ng canxi v\u00e0 magi\u00ea, n\u00f3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh lo\u1ea1i c\u00f4ng nghi\u1ec7p v\u00e0 lo\u1ea1i th\u1ef1c ph\u1ea9m. Canxi oxit c\u1ea5p c\u00f4ng nghi\u1ec7p c\u00f3 b\u1ed1n lo\u1ea1i. <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u1edbp I d\u00e0nh cho t\u1ed5ng h\u1ee3p h\u00f3a h\u1ecdc. <\/li>\n\n\n\n<li>L\u1edbp II d\u00e0nh cho canxi cacbua. <\/li>\n\n\n\n<li>Lo\u1ea1i III d\u00e0nh cho nh\u1ef1a v\u00e0 cao su. <\/li>\n\n\n\n<li>L\u1edbp IV d\u00e0nh cho qu\u00e1 tr\u00ecnh kh\u1eed l\u01b0u hu\u1ef3nh trong kh\u00ed th\u1ea3i.<\/li>\n<\/ul>\n\n\n\n<p>Canxi oxit l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u ph\u1ee5 tr\u1ee3 quan tr\u1ecdng v\u00e0 nguy\u00ean li\u1ec7u th\u00f4 c\u01a1 b\u1ea3n cho th\u00e9p v\u00e0 nh\u1ef1a. N\u00f3 c\u00f3 tri\u1ec3n v\u1ecdng th\u1ecb tr\u01b0\u1eddng l\u1edbn trong c\u00e1c l\u0129nh v\u1ef1c b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng. Ch\u1eb3ng h\u1ea1n nh\u01b0 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i c\u00f4ng nghi\u1ec7p, \u0111\u1ed1t r\u00e1c v\u00e0 kh\u1eed l\u01b0u hu\u1ef3nh kh\u00ed th\u1ea3i. L\u00e0 m\u1ed9t oxit ki\u1ec1m hi\u1ec7u qu\u1ea3 v\u1ec1 m\u1eb7t chi ph\u00ed, canxi oxit c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong \u0111\u01b0\u1eddng cao t\u1ed1c, \u0111\u01b0\u1eddng s\u1eaft cao t\u1ed1c, x\u00e2y d\u1ef1ng. Ngo\u00e0i ra trong c\u00f4ng nghi\u1ec7p (kim lo\u1ea1i m\u00e0u, l\u00e0m gi\u1ea5y, l\u00e0m \u0111\u01b0\u1eddng, tro soda, th\u1ef1c ph\u1ea9m, thu\u1ed1c, v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng), n\u00f4ng nghi\u1ec7p v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t nguy\u00ean li\u1ec7u th\u00f4 c\u01a1 b\u1ea3n quan tr\u1ecdng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>S\u1ea3n xu\u1ea5t canxi hi\u0111roxit<\/strong><\/h2>\n\n\n\n<p>Canxi hi\u0111roxit \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh do qu\u00e1 tr\u00ecnh ph\u00e2n h\u1ee7y canxi oxit v\u1edbi n\u01b0\u1edbc. C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc l\u00e0 Ca(OH)2, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 v\u00f4i t\u00f4i. Dung d\u1ecbch n\u01b0\u1edbc \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 n\u01b0\u1edbc v\u00f4i trong.<\/p>\n\n\n\n<p>Canxi hi\u0111roxit c\u00f3 t\u00ednh ch\u1ea5t chung c\u1ee7a ki\u1ec1m v\u00e0 l\u00e0 ki\u1ec1m m\u1ea1nh. V\u00ec \u0111\u1ed9 h\u00f2a tan c\u1ee7a canxi hi\u0111roxit th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi natri hi\u0111roxit v\u00e0 kali hi\u0111roxit n\u00ean dung d\u1ecbch c\u1ee7a n\u00f3 c\u00f3 t\u00ednh \u0103n m\u00f2n v\u00e0 t\u00ednh ki\u1ec1m t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p.<\/p>\n\n\n\n<p>Do \u0111\u00f3, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 axit trong th\u1ef1c ph\u1ea9m, ph\u1ee5c v\u1ee5 c\u00e1c ch\u1ee9c n\u0103ng nh\u01b0 \u0111\u1ec7m, trung h\u00f2a v\u00e0 \u0111\u00f4ng \u0111\u1eb7c. Canxi hydroxit c\u1ea5p th\u1ef1c ph\u1ea9m c\u00f3 ho\u1ea1t t\u00ednh t\u01b0\u01a1ng \u0111\u1ed1i cao, c\u1ea5u tr\u00fac l\u1ecfng l\u1ebbo, \u0111\u1ed9 tinh khi\u1ebft cao, \u0111\u1ed9 tr\u1eafng t\u1ed1t, h\u00e0m l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t th\u1ea5p v\u00e0 kh\u00f4ng ch\u1ee9a c\u00e1c nguy\u00ean t\u1ed1 c\u00f3 h\u1ea1i nh\u01b0 Pb v\u00e0 As.<\/p>\n\n\n\n<p>Canxi hydroxit \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i l\u00e0m nguy\u00ean li\u1ec7u trong ng\u00e0nh s\u1ea3n xu\u1ea5t ch\u1ebf ph\u1ea9m canxi, trong \u0111\u00f3 canxi gluconat l\u00e0 s\u1ea3n ph\u1ea9m ph\u1ed5 bi\u1ebfn nh\u1ea5t.<\/p>\n\n\n\n<p>Canxi hydroxit c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 axit trong s\u1eefa b\u1ed9t v\u00e0 s\u1eefa c\u00f4ng th\u1ee9c cho tr\u1ebb s\u01a1 sinh. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 ch\u1ea5t \u0111\u1ec7m, ch\u1ea5t trung h\u00f2a v\u00e0 ch\u1ea5t b\u1ea3o qu\u1ea3n trong bia, pho m\u00e1t v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m ca cao. Canxi hydroxit \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t thu\u1ed1c v\u00e0 ph\u1ee5 gia th\u1ef1c ph\u1ea9m. N\u00f3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 pH v\u00e0 g\u00e2y \u0111\u00f4ng t\u1ee5. V\u00ed d\u1ee5, t\u1ed5ng h\u1ee3p: v\u1eadt li\u1ec7u sinh h\u1ecdc c\u00f4ng ngh\u1ec7 cao nh\u01b0 HA, VC phosphate cho ph\u1ee5 gia th\u1ee9c \u0103n ch\u0103n nu\u00f4i v\u00e0 canxi cyclohexan, canxi lactat v\u00e0 canxi citrat.<\/p>\n\n\n\n<p>Ngo\u00e0i ra, n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ch\u1ea5t ph\u1ee5 gia trong ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u01b0\u1eddng, x\u1eed l\u00fd n\u01b0\u1edbc v\u00e0 c\u00e1c h\u00f3a ch\u1ea5t h\u1eefu c\u01a1 cao c\u1ea5p kh\u00e1c. N\u00f3 c\u0169ng h\u1eefu \u00edch \u0111\u1ec3 chu\u1ea9n b\u1ecb ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 axit v\u00e0 ngu\u1ed3n canxi trong c\u00e1c s\u1ea3n ph\u1ea9m b\u00e1n th\u00e0nh ph\u1ea9m th\u1ecbt \u0103n \u0111\u01b0\u1ee3c, s\u1ea3n ph\u1ea9m konjac, s\u1ea3n ph\u1ea9m \u0111\u1ed3 u\u1ed1ng v\u00e0 thu\u1ed1c th\u1ee5t th\u00e1o y t\u1ebf.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a canxi hi\u0111roxit<\/h3>\n\n\n\n<p>Ng\u00e0nh c\u00f4ng nghi\u1ec7p canxi hydroxit \u1edf m\u1ed9t s\u1ed1 qu\u1ed1c gia ph\u00e1t tri\u1ec3n s\u1edbm h\u01a1n. Anh, Hoa K\u1ef3, \u0110\u1ee9c, Nh\u1eadt B\u1ea3n v\u00e0 H\u00e0n Qu\u1ed1c \u0111\u1ec1u c\u00f3 s\u1ea3n l\u01b0\u1ee3ng h\u00e0ng n\u0103m v\u01b0\u1ee3t qu\u00e1 10 tri\u1ec7u t\u1ea5n. C\u00e1c qu\u1ed1c gia n\u00e0y ch\u1ee7 y\u1ebfu s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao v\u00e0 \u0111\u1ed9 tr\u1eafng cao. So v\u1edbi h\u1ecd, n\u0103ng l\u1ef1c s\u1ea3n xu\u1ea5t c\u1ee7a c\u00e1c c\u00f4ng ty canxi hydroxit c\u1ea5p th\u1ef1c ph\u1ea9m c\u1ee7a Trung Qu\u1ed1c k\u00e9m h\u01a1n. C\u00e1c s\u1ea3n ph\u1ea9m cao c\u1ea5p kh\u00f4ng th\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a th\u1ecb tr\u01b0\u1eddng qu\u1ed1c t\u1ebf do h\u1ea1n ch\u1ebf v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt. C\u1ea3 s\u1ed1 l\u01b0\u1ee3ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m \u0111\u1ec1u t\u1ee5t h\u1eadu so v\u1edbi c\u00e1c c\u00f4ng ty n\u01b0\u1edbc ngo\u00e0i. <\/p>\n\n\n\n<p>Do \u0111\u00f3, vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c doanh nghi\u1ec7p canxi hydroxit trong n\u01b0\u1edbc t\u1eeb \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u cao v\u00e0 v\u1edbi t\u1ed1c \u0111\u1ed9 cao l\u00e0 r\u1ea5t quan tr\u1ecdng. V\u1edbi nh\u1eefng ti\u1ebfn b\u1ed9 c\u00f4ng ngh\u1ec7 hi\u1ec7n t\u1ea1i trong l\u0129nh v\u1ef1c sinh h\u1ecdc t\u1ea1i Trung Qu\u1ed1c, l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng canxi hydroxit \u0111ang tr\u1edf n\u00ean r\u1ed9ng r\u00e3i h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi nhu c\u1ea7u l\u1edbn v\u1ec1 canxi hydroxit c\u1ea5p th\u1ef1c ph\u1ea9m.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>S\u1ea3n xu\u1ea5t nano canxi cacbonat<\/strong><\/h2>\n\n\n\n<p>Nano canxi cacbonat l\u00e0 ch\u1ea5t \u0111\u1ed9n v\u00f4 c\u01a1 ch\u1ee9c n\u0103ng c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t t\u1eeb 1-100nm, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong cao su, nh\u1ef1a, l\u00e0m gi\u1ea5y, m\u1ef1c, ch\u1ea5t ph\u1ee7, ch\u1ea5t b\u1ecbt k\u00edn v\u00e0 ch\u1ea5t k\u1ebft d\u00ednh, y h\u1ecdc, kem \u0111\u00e1nh r\u0103ng, th\u1ef1c ph\u1ea9m v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c.<\/p>\n\n\n\n<p>S\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p nano canxi cacbonat ch\u1ee7 y\u1ebfu d\u1ef1a v\u00e0o qu\u00e1 tr\u00ecnh cacbon h\u00f3a. Nguy\u00ean li\u1ec7u th\u00f4 ch\u1ee7 y\u1ebfu l\u00e0 \u0111\u00e1 v\u00f4i c\u00f3 h\u00e0m l\u01b0\u1ee3ng canxi cacbonat cao. Qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t bao g\u1ed3m nung, ti\u00eau h\u00f3a, cacbon h\u00f3a, bi\u1ebfn t\u00ednh, ph\u00e2n t\u00e1n v\u00e0 s\u1ea5y kh\u00f4 \u0111\u1ec3 thu \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m v\u1eadt li\u1ec7u b\u1ed9t cu\u1ed1i c\u00f9ng.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5, C\u00f4ng ty TNHH C\u00f4ng ngh\u1ec7 \u0110\u00f4ng Hoa S\u01a1n \u0110\u00f4ng ch\u1ebf bi\u1ebfn \u0111\u00e1 v\u00f4i th\u00e0nh v\u1eadt li\u1ec7u m\u1edbi cao c\u1ea5p g\u1ed1c canxi nh\u01b0 nano canxi cacbonat, gi\u00e1 qu\u1eb7ng v\u00f4i kho\u1ea3ng 100 nh\u00e2n d\u00e2n t\u1ec7\/t\u1ea5n c\u00f3 th\u1ec3 t\u0103ng l\u00ean 3.000 nh\u00e2n d\u00e2n t\u1ec7\/t\u1ea5n, gi\u00e1 nano canxi cacbonat c\u1ea5p th\u1ef1c ph\u1ea9m c\u00f3 th\u1ec3 l\u00ean t\u1edbi 10.000 nh\u00e2n d\u00e2n t\u1ec7\/t\u1ea5n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"826\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/Industries-1024x826.webp\" alt=\"\" class=\"wp-image-14755\" style=\"width:700px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/Industries-1024x826.webp 1024w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/Industries-300x242.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/Industries-768x619.webp 768w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/Industries-1536x1239.webp 1536w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/Industries-2048x1652.webp 2048w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/Industries-15x12.webp 15w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2024\/08\/Industries-600x484.webp 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">T\u00ecnh h\u00ecnh khai th\u00e1c v\u00e0 s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean \u0111\u00e1 v\u00f4i hi\u1ec7n nay \u1edf Trung Qu\u1ed1c<\/h2>\n\n\n\n<p>C\u1ea7n k\u1ebft h\u1ee3p c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3 c\u1ee7a s\u1ef1 ph\u00e1t tri\u1ec3n c\u00f4ng nghi\u1ec7p hi\u1ec7n t\u1ea1i v\u00e0 c\u00f4ng ngh\u1ec7 s\u1ea3n ph\u1ea9m, \u0111\u1ec3 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c gi\u00e1 tr\u1ecb cao v\u00e0 s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 t\u00e0i nguy\u00ean \u0111\u00e1 v\u00f4i. H\u01a1n n\u1eefa, vi\u1ec7c thi\u1ebft l\u1eadp v\u00e0 ph\u00e2n chia gi\u1edbi h\u1ea1n tr\u00ean c\u1ee7a h\u00e0m l\u01b0\u1ee3ng \u0111\u00e1 v\u00f4i c\u1ea7n thi\u1ebft cho t\u1eebng s\u1ea3n ph\u1ea9m l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a gi\u00e1 tr\u1ecb c\u1ee7a t\u00e0i nguy\u00ean \u0111\u00e1 v\u00f4i ch\u1ea5t l\u01b0\u1ee3ng cao.<\/p>\n\n\n\n<p>Theo s\u1ef1 thay \u0111\u1ed5i gradien c\u1ee7a h\u00e0m l\u01b0\u1ee3ng CaO trong \u0111\u00e1 v\u00f4i, <\/p>\n\n\n\n<p>\u0110\u00e1 v\u00f4i ch\u1ea5t l\u01b0\u1ee3ng cao c\u00f3 h\u00e0m l\u01b0\u1ee3ng l\u1edbn h\u01a1n 54% c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t ra c\u00e1c s\u1ea3n ph\u1ea9m canxi cacbonat nh\u1eb9 v\u00e0 canxi cacbonat nano c\u00f3 gi\u00e1 tr\u1ecb gia t\u0103ng cao. C\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u1eed d\u1ee5ng c\u00e1c s\u1ea3n ph\u1ea9m n\u00e0y bao g\u1ed3m nh\u1ef1a cao c\u1ea5p, s\u1ea3n xu\u1ea5t gi\u1ea5y, s\u01a1n, y h\u1ecdc, \u0111i\u1ec7n t\u1eed, th\u1ef1c ph\u1ea9m v\u00e0 c\u00e1c ng\u00e0nh kh\u00e1c. <\/p>\n\n\n\n<p>\u0110\u00e1 v\u00f4i ch\u1ea5t l\u01b0\u1ee3ng trung b\u00ecnh c\u00f3 h\u00e0m l\u01b0\u1ee3ng t\u1eeb 49% \u0111\u1ebfn 53% c\u00f3 th\u1ec3 t\u1ea1o ra canxi oxit v\u00e0 canxi hydroxit ho\u1ea1t t\u00ednh. Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong dung m\u00f4i luy\u1ec7n kim, h\u00f3a ch\u1ea5t v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p ch\u1ebf bi\u1ebfn s\u00e2u th\u1ef1c ph\u1ea9m. <\/p>\n\n\n\n<p>\u0110\u00e1 v\u00f4i ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p c\u00f3 h\u00e0m l\u01b0\u1ee3ng d\u01b0\u1edbi 48% c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t xi m\u0103ng trong ng\u00e0nh x\u00e2y d\u1ef1ng.<\/p>\n\n\n\n<p>Ph\u00e2n ph\u1ed1i nguy\u00ean li\u1ec7u \u0111\u00e1 v\u00f4i th\u00f4 cho c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p li\u00ean quan kh\u00e1c nhau theo h\u00e0m l\u01b0\u1ee3ng canxi oxit kh\u00e1c nhau, c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c chu\u1ed7i c\u00f4ng nghi\u1ec7p kh\u00e9p k\u00edn ho\u00e0n to\u00e0n. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00e0i nguy\u00ean ch\u1ea5t l\u01b0\u1ee3ng cao, s\u1eed d\u1ee5ng \u0111\u1ea7y \u0111\u1ee7 v\u00e0 gi\u00e1 tr\u1ecb t\u1ed1i \u0111a v\u00e0 t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-social-links has-normal-icon-size is-layout-flex wp-block-social-links-is-layout-flex\"><li class=\"wp-social-link wp-social-link-facebook  wp-block-social-link\"><a href=\"https:\/\/www.facebook.com\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M12 2C6.5 2 2 6.5 2 12c0 5 3.7 9.1 8.4 9.9v-7H7.9V12h2.5V9.8c0-2.5 1.5-3.9 3.8-3.9 1.1 0 2.2.2 2.2.2v2.5h-1.3c-1.2 0-1.6.8-1.6 1.6V12h2.8l-.4 2.9h-2.3v7C18.3 21.1 22 17 22 12c0-5.5-4.5-10-10-10z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">Facebook<\/span><\/a><\/li>\n\n<li class=\"wp-social-link wp-social-link-linkedin  wp-block-social-link\"><a href=\"https:\/\/www.linkedin.com\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M19.7,3H4.3C3.582,3,3,3.582,3,4.3v15.4C3,20.418,3.582,21,4.3,21h15.4c0.718,0,1.3-0.582,1.3-1.3V4.3 C21,3.582,20.418,3,19.7,3z M8.339,18.338H5.667v-8.59h2.672V18.338z M7.004,8.574c-0.857,0-1.549-0.694-1.549-1.548 c0-0.855,0.691-1.548,1.549-1.548c0.854,0,1.547,0.694,1.547,1.548C8.551,7.881,7.858,8.574,7.004,8.574z M18.339,18.338h-2.669 v-4.177c0-0.996-0.017-2.278-1.387-2.278c-1.389,0-1.601,1.086-1.601,2.206v4.249h-2.667v-8.59h2.559v1.174h0.037 c0.356-0.675,1.227-1.387,2.526-1.387c2.703,0,3.203,1.779,3.203,4.092V18.338z\"><\/path><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">LinkedIn<\/span><\/a><\/li>\n\n<li class=\"wp-social-link wp-social-link-x  wp-block-social-link\"><a href=\"https:\/\/x.com\/\" class=\"wp-block-social-link-anchor\"><svg width=\"24\" height=\"24\" viewbox=\"0 0 24 24\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M13.982 10.622 20.54 3h-1.554l-5.693 6.618L8.745 3H3.5l6.876 10.007L3.5 21h1.554l6.012-6.989L15.868 21h5.245l-7.131-10.378Zm-2.128 2.474-.697-.997-5.543-7.93H8l4.474 6.4.697.996 5.815 8.318h-2.387l-4.745-6.787Z\" \/><\/svg><span class=\"wp-block-social-link-label screen-reader-text\">X<\/span><\/a><\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>\u0110\u00e1 v\u00f4i l\u00e0 nguy\u00ean li\u1ec7u ch\u00ednh \u0111\u1ec3 s\u1ea3n xu\u1ea5t xi m\u0103ng. C\u1ea7n kho\u1ea3ng 1,4 \u0111\u1ebfn 1,5 t\u1ea5n \u0111\u00e1 v\u00f4i \u0111\u1ec3 s\u1ea3n xu\u1ea5t 1 t\u1ea5n clinker xi m\u0103ng. Theo s\u1ed1 li\u1ec7u t\u1eeb [\u2026]<\/p>","protected":false},"author":2,"featured_media":14752,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[42],"tags":[],"class_list":["post-14751","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>The high-end applications limestone has besides producing cement<\/title>\n<meta name=\"description\" content=\"Limestone is the raw material for cement production. 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