{"id":129870,"date":"2023-11-10T10:59:52","date_gmt":"2023-11-10T02:59:52","guid":{"rendered":"https:\/\/www.alpapowder.com\/129870\/"},"modified":"2023-11-10T10:59:53","modified_gmt":"2023-11-10T02:59:53","slug":"qua-trinh-khu-luu-huynh-kho-natri-bicarbonate","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/129870\/","title":{"rendered":"Qu\u00e1 tr\u00ecnh kh\u1eed l\u01b0u hu\u1ef3nh kh\u00f4 natri bicarbonate"},"content":{"rendered":"

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Qu\u00e1 tr\u00ecnh kh\u1eed l\u01b0u hu\u1ef3nh kh\u00f4 s\u1eed d\u1ee5ng m\u00e1y nghi\u1ec1n c\u00f3 h\u1ec7 th\u1ed1ng ph\u00e2n lo\u1ea1i ri\u00eang v\u00e0 qu\u1ea1t b\u0103ng t\u1ea3i k\u1ebft h\u1ee3p th\u00e0nh thi\u1ebft b\u1ecb nghi\u1ec1n v\u00e0 phun b\u1ed9t ho\u00e0n ch\u1ec9nh.B\u1ed9t m\u1ecbn natri bicarbonate nghi\u1ec1n th\u00e0nh b\u1ed9t c\u00f3 c\u1ea5u tr\u00fac ph\u00e2n l\u1edbp ho\u1eb7c x\u1ed1p, k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u1ed3ng \u0111\u1ec1u, \u0111\u1ed9 ph\u00e2n t\u00e1n t\u1ed1t. Sau \u0111\u00f3, b\u1ed9t \u0111\u01b0\u1ee3c phun tr\u1ef1c ti\u1ebfp v\u00e0o l\u00f2 ho\u1eb7c th\u00e1p ph\u1ea3n \u1ee9ng th\u00f4ng qua nhi\u1ec1u v\u00f2i phun, c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf hi\u1ec7u qu\u1ea3 h\u01a1n 95% SO2 v\u00e0 HCl trong kh\u00ed th\u1ea3i, t\u1ef7 l\u1ec7 lo\u1ea1i b\u1ecf th\u1eadm ch\u00ed c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 99%.<\/p>\n

Vi\u1ec7c s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p kh\u1eed l\u01b0u hu\u1ef3nh kh\u00f4 b\u1eb1ng natri bicarbonate (baking soda<\/a>) kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u nghi\u00eam ng\u1eb7t v\u1ec1 m\u00f4i tr\u01b0\u1eddng m\u00e0 c\u00f2n gi\u1ea3m chi ph\u00ed \u0111\u1ea7u t\u01b0 v\u00e0 v\u1eadn h\u00e0nh m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 so v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p l\u1ecdc kh\u00ed th\u1ea3i kh\u00e1c.<\/p>\n

Qu\u00e1 tr\u00ecnh kh\u1eed l\u01b0u hu\u1ef3nh kh\u00f4 b\u1eb1ng baking soda<\/a> c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m sau: h\u1ec7 th\u1ed1ng kh\u00f4 ho\u00e0n to\u00e0n, kh\u00f4ng c\u1ea7n n\u01b0\u1edbc; b\u1ed9t kh\u00f4 \u0111\u01b0\u1ee3c phun tr\u01b0\u1edbc \u0111\u01b0\u1eddng \u1ed1ng v\u00e0 t\u00fai; s\u1ea3n ph\u1ea9m ph\u1ee5 ph\u1ea3n \u1ee9ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ea3i ra qua h\u1ec7 th\u1ed1ng lo\u1ea1i b\u1ecf b\u1ee5i; kh\u00f4ng c\u1ea7n ng\u1eebng s\u1ea3n xu\u1ea5t; m\u1ed9t -\u0111\u1ea7u t\u01b0 th\u1eddi gian r\u1ea5t nh\u1ecf; v\u00e0 chi\u1ebfm r\u1ea5t \u00edt di\u1ec7n t\u00edch; Chi ph\u00ed h\u1ec7 th\u1ed1ng th\u1ea5p; c\u1ea1nh tranh; hi\u1ec7u su\u1ea5t ph\u1ea3n \u1ee9ng r\u1ea5t cao, kh\u1ed1i l\u01b0\u1ee3ng phun qu\u00e1 m\u1ee9c r\u1ea5t nh\u1ecf v\u00e0 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng kh\u00ed th\u1ea3i kh\u00f4ng th\u1ec3 ph\u00e1t hi\u1ec7n; ng\u1ed9 \u0111\u1ed9c ch\u1ea5t x\u00fac t\u00e1c kh\u1eed nitrat \u0111\u01b0\u1ee3c ng\u0103n ch\u1eb7n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3; t\u00ednh linh ho\u1ea1t cao v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c ch\u1ec9 s\u1ed1 ph\u00e1t th\u1ea3i nghi\u00eam ng\u1eb7t nh\u1ea5t b\u1ea5t c\u1ee9 l\u00fac n\u00e0o.<\/p>\n

Natri bicarbonate (baking soda<\/a>, NaHCO3) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t h\u1ea5p ph\u1ee5 \u0111\u1ec3 kh\u1eed l\u01b0u hu\u1ef3nh trong kh\u00ed th\u1ea3i, lo\u1ea1i b\u1ecf c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m c\u00f3 t\u00ednh axit trong kh\u00ed th\u1ea3i th\u00f4ng qua h\u1ea5p ph\u1ee5 h\u00f3a h\u1ecdc, \u0111\u1ed3ng th\u1eddi, n\u00f3 c\u0169ng c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf m\u1ed9t s\u1ed1 ch\u1ea5t vi l\u01b0\u1ee3ng v\u00f4 c\u01a1 v\u00e0 h\u1eefu c\u01a1 th\u00f4ng qua h\u1ea5p ph\u1ee5 v\u1eadt l\u00fd. Trong qu\u00e1 tr\u00ecnh n\u00e0y, b\u1ed9t m\u1ecbn natri bicarbonate \u0111\u01b0\u1ee3c phun tr\u1ef1c ti\u1ebfp v\u00e0o kh\u00ed th\u1ea3i c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao t\u1eeb 140 \u0111\u1ebfn 250\u00b0C.<\/p>\n

Trong \u1ed1ng kh\u00f3i, ch\u1ea5t kh\u1eed l\u01b0u hu\u1ef3nh – baking soda<\/a> (NaHCO3) – \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a kh\u00ed th\u1ea3i \u1edf nhi\u1ec7t \u0111\u1ed9 cao, t\u1ea1o th\u00e0nh c\u1ea5u tr\u00fac x\u1ed1p si\u00eau nh\u1ecf tr\u00ean b\u1ec1 m\u1eb7t, gi\u1ed1ng nh\u01b0 b\u1eafp rang \u0111ang n\u1ed5. ch\u1ea5t kh\u1eed l\u01b0u hu\u1ef3nh \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t \u0111\u1ec3 tr\u1ea3i qua ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc. , SO2 v\u00e0 c\u00e1c m\u00f4i tr\u01b0\u1eddng axit kh\u00e1c trong kh\u00ed th\u1ea3i \u0111\u01b0\u1ee3c h\u1ea5p th\u1ee5 v\u00e0 tinh ch\u1ebf, v\u00e0 s\u1ea3n ph\u1ea9m ph\u1ee5 Na2SO4 \u0111\u00e3 kh\u1eed l\u01b0u hu\u1ef3nh v\u00e0 s\u1ea5y kh\u00f4 \u0111i v\u00e0o m\u00e1y h\u00fat b\u1ee5i t\u00fai theo lu\u1ed3ng kh\u00f4ng kh\u00ed v\u00e0 \u0111\u01b0\u1ee3c thu gi\u1eef.<\/p>\n

Natri cacbonat Na2CO3 m\u1edbi \u0111\u01b0\u1ee3c t\u1ea1o ra c\u00f3 kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng cao t\u1ea1i th\u1eddi \u0111i\u1ec3m t\u1ea1o ra v\u00e0 c\u00f3 th\u1ec3 t\u1ef1 x\u1ea3y ra c\u00e1c ph\u1ea3n \u1ee9ng sau v\u1edbi c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m c\u00f3 t\u00ednh axit trong kh\u00ed th\u1ea3i:<\/p>\n

C\u00e1c ph\u1ea3n \u1ee9ng ch\u00ednh:<\/p>\n

2NaHCO3(s)\u2192Na2CO3(s)+H2O(g)+CO2(g)<\/p>\n

SO2(g)+Na2CO3(s)+1\/2O2\u2192Na2SO4(s)+CO2(g)<\/p>\n

 <\/p>\n

Ph\u1ea3n \u1ee9ng ph\u1ee5:<\/p>\n

SO3(g)+Na2CO3(s)\u2192Na2SO4(s)+CO2(g)<\/p>\n","protected":false},"excerpt":{"rendered":"

B\u1ed9t m\u1ecbn natri bicarbonate nghi\u1ec1n th\u00e0nh b\u1ed9t c\u00f3 c\u1ea5u tr\u00fac ph\u00e2n l\u1edbp ho\u1eb7c x\u1ed1p, k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 \u0111\u1ed9 ph\u00e2n t\u00e1n t\u1ed1t.<\/p>\n","protected":false},"author":7,"featured_media":129834,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-129870","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\/129870","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=129870"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/129870\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/129834"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=129870"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=129870"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=129870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}