{"id":112991,"date":"2021-11-03T10:14:21","date_gmt":"2021-11-03T02:14:21","guid":{"rendered":"https:\/\/www.alpapowder.com\/112991\/"},"modified":"2021-11-03T10:14:21","modified_gmt":"2021-11-03T02:14:21","slug":"su-khac-biet-giua-canxi-cacbonat-nang-va-canxi-cacbonat-nhe","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/112991\/","title":{"rendered":"S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa canxi cacbonat n\u1eb7ng v\u00e0 canxi cacbonat nh\u1eb9"},"content":{"rendered":"

Canxi cacbonat, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u00e1 v\u00f4i, b\u1ed9t \u0111\u00e1, \u0111\u00e1 c\u1ea9m th\u1ea1ch v\u00e0 canxit, l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t c\u00f3 c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc l\u00e0 CaCO3<\/sub>, c\u00f3 t\u00ednh ki\u1ec1m v\u00e0 v\u1ec1 c\u01a1 b\u1ea3n kh\u00f4ng tan trong n\u01b0\u1edbc nh\u01b0ng tan trong axit. N\u00f3 l\u00e0 m\u1ed9t ch\u1ea5t ph\u1ed5 bi\u1ebfn tr\u00ean tr\u00e1i \u0111\u1ea5t. N\u00f3 t\u1ed3n t\u1ea1i trong aragonit, canxit, ph\u1ea5n, \u0111\u00e1 v\u00f4i, \u0111\u00e1 c\u1ea9m th\u1ea1ch, \u0111\u00e1 travertine v\u00e0 c\u00e1c lo\u1ea1i \u0111\u00e1 kh\u00e1c, v\u00e0 c\u0169ng l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a x\u01b0\u01a1ng ho\u1eb7c v\u1ecf \u0111\u1ed9ng v\u1eadt.<\/p>\n

\"\"<\/p>\n

Canxi cacbonat n\u1eb7ng v\u00e0 canxi cacbonat nh\u1eb9 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t canxi cacbonat kh\u00e1c nhau. Ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n bi\u1ec7t t\u1eeb c\u00e1c kh\u00eda c\u1ea1nh sau:<\/p>\n

1. \u0110\u1eb7c \u0111i\u1ec3m b\u1ed9t<\/strong><\/p>\n

C\u00e1c h\u1ea1t canxi cacbonat n\u1eb7ng c\u00f3 h\u00ecnh d\u1ea1ng kh\u00f4ng \u0111\u1ec1u v\u00e0 l\u00e0 b\u1ed9t ph\u00e2n t\u00e1n. K\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a n\u00f3 l\u1edbn, k\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh th\u01b0\u1eddng l\u00e0 5-10\u03bcm v\u00e0 ph\u00e2n b\u1ed1 r\u1ed9ng. N\u00f3 h\u1ea7u nh\u01b0 kh\u00f4ng h\u00f2a tan trong n\u01b0\u1edbc, h\u00f2a tan trong n\u01b0\u1edbc c\u00f3 ch\u1ee9a mu\u1ed1i amoni ho\u1eb7c oxit s\u1eaft, v\u00e0 kh\u00f4ng h\u00f2a tan trong r\u01b0\u1ee3u. N\u00f3 s\u1ebd s\u00f4i v\u00e0 h\u00f2a tan trong axit axetic lo\u00e3ng, axit clohydric lo\u00e3ng v\u00e0 axit nitric lo\u00e3ng. N\u00f3 b\u1ecb ph\u00e2n h\u1ee7y th\u00e0nh canxi oxit (CaO) v\u00e0 carbon dioxide (CO2<\/sub>) khi \u0111un n\u00f3ng.<\/p>\n

C\u00e1c h\u1ea1t canxi cacbonat nh\u1eb9 c\u00f3 h\u00ecnh d\u1ea1ng th\u00f4ng th\u01b0\u1eddng v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 b\u1ed9t \u0111\u01a1n ph\u00e2n t\u00e1n, nh\u01b0ng ch\u00fang c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u h\u00ecnh d\u1ea1ng kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 tr\u1ee5c xoay, h\u00ecnh kh\u1ed1i, h\u00ecnh kim, chu\u1ed7i, h\u00ecnh c\u1ea7u, v\u1ea3y v\u00e0 l\u0103ng tr\u1ee5 t\u1ee9 gi\u00e1c. Nh\u1eefng h\u00ecnh d\u1ea1ng kh\u00e1c nhau c\u1ee7a canxi cacbonat c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf b\u1eb1ng c\u00e1ch ki\u1ec3m so\u00e1t c\u00e1c \u0111i\u1ec1u ki\u1ec7n ph\u1ea3n \u1ee9ng. K\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a n\u00f3 nh\u1ecf, k\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh th\u01b0\u1eddng l\u00e0 1-3\u03bcm v\u00e0 ph\u00e2n b\u1ed1 h\u1eb9p. N\u00f3 h\u1ea7u nh\u01b0 kh\u00f4ng tan trong n\u01b0\u1edbc v\u00e0 r\u01b0\u1ee3u, tan trong axit, \u0111\u1ed3ng th\u1eddi th\u1ea3i ra kh\u00ed cacbonic, th\u1ec3 hi\u1ec7n ph\u1ea3n \u1ee9ng t\u1ecfa nhi\u1ec7t. C\u0169ng tan trong dung d\u1ecbch amoni clorua. N\u00f3 \u1ed5n \u0111\u1ecbnh trong kh\u00f4ng kh\u00ed v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng h\u00fat \u1ea9m nh\u1eb9.<\/p>\n

Canxi cacbonat n\u1eb7ng v\u00e0 canxi cacbonat nh\u1eb9 kh\u00e1c nhau v\u1ec1 h\u00ecnh d\u1ea1ng, k\u00edch th\u01b0\u1edbc h\u1ea1t,\u2026 Ch\u00ednh nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t n\u00e0y l\u00e0m cho ch\u00fang c\u00f3 nh\u1eefng \u1ea3nh h\u01b0\u1edfng kh\u00e1c nhau v\u1ec1 t\u00ednh ch\u1ea5t l\u00fd h\u00f3a v\u00e0 t\u1ea1o ra nh\u1eefng t\u00e1c d\u1ee5ng kh\u00e1c nhau.<\/p>\n

2. Quy tr\u00ecnh s\u1ea3n xu\u1ea5t<\/strong><\/p>\n

Canxi cacbonat n\u1eb7ng \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n, v\u00e0 \u0111\u00e1 tr\u1eafng ch\u1ee9a h\u01a1n 90% CaCO3<\/sub>\u00a0\u0111\u01b0\u1ee3c nghi\u1ec1n, ph\u00e2n lo\u1ea1i v\u00e0 t\u00e1ch b\u1eb1ng m\u00e1y nghi\u1ec1n Raymond ho\u1eb7c m\u00e1y nghi\u1ec1n \u00e1p su\u1ea5t cao kh\u00e1c \u0111\u1ec3 thu \u0111\u01b0\u1ee3c th\u00e0nh ph\u1ea9m.<\/p>\n

Canxi cacbonat nh\u1eb9 \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p cacbon h\u00f3a, l\u00e0 th\u00e0nh ph\u1ea9m thu \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch tr\u1ed9n \u0111\u00e1 v\u00f4i v\u00e0 than tr\u1eafng theo m\u1ed9t t\u1ef7 l\u1ec7 nh\u1ea5t \u0111\u1ecbnh, nung \u1edf nhi\u1ec7t \u0111\u1ed9 cao, ph\u00e2n h\u1ee7y n\u01b0\u1edbc, cacbon h\u00f3a \u0111ioxit cacbon, kh\u1eed n\u01b0\u1edbc ly t\u00e2m, l\u00e0m kh\u00f4, l\u00e0m m\u00e1t, nghi\u1ec1n v\u00e0 s\u00e0ng.<\/p>\n

Quy tr\u00ecnh s\u1ea3n xu\u1ea5t canxi cacbonat nh\u1eb9 t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ee9c t\u1ea1p, v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t kh\u00e1c nhau khi\u1ebfn ch\u00fang s\u00e1ng b\u00f3ng trong c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c nhau.<\/p>\n

3. M\u1ee5c \u0111\u00edch<\/strong><\/p>\n

Canxi cacbonat n\u1eb7ng c\u00f3 nhi\u1ec1u m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ea5p \u0111\u1ea7y b\u1eb1ng cao su \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n k\u00e9o, \u0111\u1ed9 b\u1ec1n x\u00e9 v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao h\u01a1n so v\u1edbi ch\u1ea5t l\u01b0u h\u00f3a cao su nguy\u00ean ch\u1ea5t. N\u00f3 c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t khung x\u01b0\u01a1ng khi s\u1eed d\u1ee5ng trong c\u00e1c s\u1ea3n ph\u1ea9m nh\u1ef1a, c\u00f3 t\u00e1c d\u1ee5ng r\u1ea5t l\u1edbn \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a s\u1ea3n ph\u1ea9m nh\u1ef1a, \u0111\u1ed3ng th\u1eddi c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 c\u1ee9ng c\u1ee7a s\u1ea3n ph\u1ea9m, c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u00f3ng b\u1ec1 m\u1eb7t v\u00e0 \u0111\u1ed9 m\u1ecbn b\u1ec1 m\u1eb7t c\u1ee7a s\u1ea3n ph\u1ea9m. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u01a1n g\u1ed1c n\u01b0\u1edbc \u0111\u1ec3 l\u00e0m cho l\u1edbp ph\u1ee7 kh\u00f4ng l\u1eafng v\u00e0 d\u1ec5 ph\u00e2n t\u00e1n. Canxi cacbonat n\u1eb7ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t gi\u1ea5y c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 tr\u1eafng c\u1ee7a gi\u1ea5y, \u0111\u1ed3ng th\u1eddi chi ph\u00ed th\u1ea5p. Canxi cacbonat n\u1eb7ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u00ea t\u00f4ng trong ng\u00e0nh x\u00e2y d\u1ef1ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng, c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 d\u1ebbo dai v\u00e0 ch\u1ecbu l\u1ef1c c\u1ee7a s\u1ea3n ph\u1ea9m. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ng\u00e0nh g\u1ea1ch l\u00e1t n\u1ec1n \u0111\u1ec3 t\u0103ng \u0111\u1ed9 tr\u1eafng v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a s\u1ea3n ph\u1ea9m, c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1ebbo dai c\u1ee7a s\u1ea3n ph\u1ea9m v\u00e0 gi\u1ea3m gi\u00e1 th\u00e0nh s\u1ea3n ph\u1ea9m.<\/p>\n

Canxi cacbonat nh\u1eb9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 cao su, nh\u1ef1a, s\u1ea3n xu\u1ea5t gi\u1ea5y, ch\u1ea5t ph\u1ee7 v\u00e0 m\u1ef1c, v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong s\u1ea3n xu\u1ea5t t\u1ed5ng h\u1ee3p h\u1eefu c\u01a1, luy\u1ec7n kim, th\u1ee7y tinh v\u00e0 ami\u0103ng. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ch\u1ea5t l\u00e0m gi\u1ed1ng cho n\u01b0\u1edbc th\u1ea3i c\u00f4ng nghi\u1ec7p, m\u1ed9t ch\u1ea5t ch\u1ed1ng axit cho b\u1ec7nh lo\u00e9t d\u1ea1 d\u00e0y v\u00e0 t\u00e1 tr\u00e0ng, m\u1ed9t ch\u1ea5t gi\u1ea3i \u0111\u1ed9c cho b\u1ec7nh nhi\u1ec5m axit, m\u1ed9t ch\u1ea5t thu h\u1ed3i SO2<\/sub> trong kh\u00ed th\u1ea3i c\u00f3 ch\u1ee9a SO2<\/sub>, m\u1ed9t ch\u1ea5t ph\u1ee5 gia cho th\u1ee9c \u0103n ch\u0103n nu\u00f4i b\u00f2 s\u1eefa v\u00e0 m\u1ed9t ch\u1ea5t ch\u1ed1ng d\u00ednh cho v\u1ea3i s\u01a1n. . N\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m nguy\u00ean li\u1ec7u cho b\u1ed9t \u0111\u00e1nh r\u0103ng, kem \u0111\u00e1nh r\u0103ng v\u00e0 c\u00e1c lo\u1ea1i m\u1ef9 ph\u1ea9m kh\u00e1c.<\/p>\n

V\u1edbi s\u1ef1 ti\u1ebfn b\u1ed9 kh\u00f4ng ng\u1eebng c\u1ee7a c\u00f4ng ngh\u1ec7 b\u1ed9t, c\u00e1c l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng c\u1ee7a canxi cacbonat kh\u00f4ng ng\u1eebng \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng v\u00e0 ch\u00fang s\u1ebd c\u00f2n ph\u00e1t huy nhi\u1ec1u l\u1ee3i th\u1ebf h\u01a1n n\u1eefa trong t\u01b0\u01a1ng lai.<\/p>\n

 <\/p>\n

Ngu\u1ed3n b\u00e0i vi\u1ebft: China Powder Network<\/p>\n","protected":false},"excerpt":{"rendered":"

Canxi cacbonat, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u00e1 v\u00f4i, b\u1ed9t \u0111\u00e1, \u0111\u00e1 c\u1ea9m th\u1ea1ch v\u00e0 canxit, l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t c\u00f3 c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc l\u00e0 CaCO3, c\u00f3 t\u00ednh ki\u1ec1m v\u00e0 v\u1ec1 c\u01a1 b\u1ea3n kh\u00f4ng tan trong n\u01b0\u1edbc nh\u01b0ng tan trong axit. N\u00f3 l\u00e0 m\u1ed9t ch\u1ea5t ph\u1ed5 bi\u1ebfn tr\u00ean tr\u00e1i \u0111\u1ea5t. N\u00f3 t\u1ed3n t\u1ea1i trong aragonit, canxit, ph\u1ea5n, \u0111\u00e1 v\u00f4i, \u0111\u00e1 c\u1ea9m th\u1ea1ch, \u0111\u00e1 travertine v\u00e0 c\u00e1c lo\u1ea1i \u0111\u00e1 kh\u00e1c, v\u00e0 c\u0169ng l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a x\u01b0\u01a1ng ho\u1eb7c v\u1ecf \u0111\u1ed9ng v\u1eadt.<\/p>\n","protected":false},"author":6,"featured_media":108980,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-112991","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\/112991","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\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=112991"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/112991\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/108980"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=112991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=112991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=112991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}