{"id":1102,"date":"2023-03-02T07:06:54","date_gmt":"2023-03-02T07:06:54","guid":{"rendered":"https:\/\/ruouviet.com.vn\/?p=1102"},"modified":"2023-11-21T08:23:58","modified_gmt":"2023-11-21T08:23:58","slug":"chung-cat-chan-khong","status":"publish","type":"post","link":"https:\/\/ruouviet.com.vn\/e_n\/chung-cat-chan-khong\/","title":{"rendered":"Vacuum distillation is what? Characteristics of vacuum distillation"},"content":{"rendered":"

Ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ch\u01b0ng c\u1ea5t m\u00e0 c\u00e1c n\u01b0\u1edbc ph\u00e1t tri\u1ec3n tr\u00ean th\u1ebf gi\u1edbi s\u1eed d\u1ee5ng. T\u1ea1i Vi\u1ec7t Nam, kh\u00e1i ni\u1ec7m n\u00e0y v\u1eabn c\u00f2n m\u1edbi m\u1ebb, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi ng\u00e0nh r\u01b0\u1ee3u truy\u1ec1n th\u1ed1ng. H\u00e3y c\u00f9ng R\u01b0\u1ee3u Vi\u1ec7t t\u00ecm hi\u1ec3u t\u1ea5t t\u1ea7n t\u1eadt v\u1ec1 ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng nh\u00e9!<\/p>\r\n\r\n\r\n\r\n

Ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng l\u00e0 g\u00ec?<\/strong>\u00a0<\/h2>\r\n\r\n\r\n\r\n

Tr\u01b0\u1edbc khi \u0111i v\u00e0o kh\u00e1i ni\u1ec7m n\u00e0y, ch\u00fang ta c\u1ea7n hi\u1ec3u: ch\u01b0ng c\u1ea5t l\u00e0 nh\u01b0 th\u1ebf n\u00e0o?\u00a0<\/p>\r\n\r\n\r\n\r\n

Ch\u01b0ng c\u1ea5t l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p hay qu\u00e1 tr\u00ecnh \u0111\u1ec3 t\u00e1ch h\u1ed7n h\u1ee3p th\u00e0nh c\u00e1c ch\u1ea5t l\u1ecfng kh\u00e1c nhau, thu \u0111\u01b0\u1ee3c do ch\u00eanh l\u1ec7ch v\u1ec1 nhi\u1ec7t \u0111\u1ed9 s\u00f4i.\u00a0<\/p>\r\n\r\n\r\n\r\n

Ch\u01b0ng c\u1ea5t = Gia nhi\u1ec7t + ng\u01b0ng t\u1ee5<\/p>\r\n

\"Th\u00ed
Th\u00ed nghi\u1ec7m ch\u01b0ng c\u1ea5t \u0111\u01a1n gi\u1ea3n<\/em><\/strong><\/figcaption><\/figure>\r\n\r\n\r\n\r\n

\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a ch\u01b0ng c\u1ea5t:<\/strong>\u00a0<\/h3>\r\n\r\n\r\n\r\n

Lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t: D\u1ef1a v\u00e0o nhi\u1ec7t \u0111\u1ed9 s\u00f4i kh\u00e1c nhau, t\u1eeb \u0111\u00f3 thu \u0111\u01b0\u1ee3c c\u00e1c ch\u1ea5t ri\u00eang bi\u1ec7t t\u1eeb h\u1ed7n h\u1ee3p, nh\u01b0ng t\u00e1ch ch\u1ea5t c\u00f3 \u0111\u1ed9 tinh khi\u1ebft ho\u00e0n to\u00e0n th\u00ec r\u1ea5t kh\u00f3 (th\u01b0\u1eddng \u00e1p d\u1ee5ng nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau)\u00a0<\/p>\r\n\r\n\r\n\r\n

Thu \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m ph\u1ee5: Khi qu\u00e1 tr\u00ecnh ch\u01b0ng c\u1ea5t di\u1ec5n ra, c\u00e1c s\u1ea3n ph\u1ea9m ph\u1ee5 c\u0169ng s\u1ebd h\u00ecnh th\u00e0nh. V\u00ed d\u1ee5 khi ch\u01b0ng c\u1ea5t r\u01b0\u1ee3u, ch\u00fang ta thu \u0111\u01b0\u1ee3c r\u01b0\u1ee3u \u0111\u1ea7u c\u00f3 h\u00e0m l\u01b0\u1ee3ng este b\u00e9o v\u00e0 methanol r\u1ea5t cao.\u00a0<\/p>\r\n\r\n\r\n\r\n

C\u00e1c ch\u1ea5t t\u00e1ch ph\u1ea3i bay h\u01a1i m\u1ed9t ph\u1ea7n: N\u1ebfu c\u00e1c ch\u1ea5t c\u1ea7n t\u00e1ch kh\u00f4ng bay h\u01a1i th\u00ec kh\u00f4ng th\u1ec3 x\u1ea3y ra qu\u00e1 tr\u00ecnh ch\u01b0ng c\u1ea5t\u00a0<\/p>\r\n\r\n\r\n\r\n

Y\u00eau c\u1ea7u c\u00f4ng ngh\u1ec7: n\u1ebfu c\u00e1c ch\u1ea5t c\u1ea7n t\u00e1ch c\u00f3 nhi\u1ec7t \u0111\u1ed9 s\u00f4i c\u00e0ng g\u1ea7n nhau th\u00ec \u0111\u00f2i h\u1ecfi v\u1ec1 c\u00f4ng ngh\u1ec7 c\u00e0ng ti\u00ean ti\u1ebfn\u00a0<\/p>\r\n\r\n\r\n\r\n

Ph\u1ee5 thu\u1ed9c v\u00e0o \u00e1p su\u1ea5t: qu\u00e1 tr\u00ecnh ch\u01b0ng c\u1ea5t li\u00ean quan m\u1eadt thi\u1ebft \u0111\u1ebfn \u0111i\u1ec3m s\u00f4i. \u0110i\u1ec3m s\u00f4i l\u00e0 nhi\u1ec7t \u0111\u1ed9 m\u00e0 t\u1ea1i \u0111\u00f3 \u00e1p su\u1ea5t b\u00ean ngo\u00e0i b\u1eb1ng v\u1edbi \u00e1p su\u1ea5t h\u01a1i c\u1ee7a ch\u1ea5t l\u1ecfng. V\u00ed d\u1ee5 nh\u01b0 \u1edf tr\u00ean n\u00fai cao, n\u01b0\u1edbc \u0111un \u1edf 85 \u0111\u1ed9 C \u0111\u00e3 s\u00f4i, do \u00e1p su\u1ea5t tr\u00ean n\u00fai th\u1ea5p h\u01a1n d\u01b0\u1edbi \u0111\u1ed3ng b\u1eb1ng. C\u00f2n ngo\u00e0i v\u0169 tr\u1ee5, khi m\u00e0 \u00e1p su\u1ea5t ti\u1ec7m c\u1eadn \u0111\u1ebfn 0 atm, g\u1ea7n nh\u01b0 m\u1ecdi ch\u1ea5t l\u1ecfng h\u00f3a h\u01a1i ngay l\u1eadp t\u1ee9c khi v\u00e0o kh\u00f4ng gian, do \u0111\u00f3 m\u00e0 c\u00e1c phi h\u00e0nh gia lu\u00f4n ph\u1ea3i c\u00f3 \u0111\u1ed3 b\u1ea3o h\u1ed9. V\u00ec v\u1eady, ch\u01b0ng c\u1ea5t ph\u1ee5 thu\u1ed9c r\u1ea5t l\u1edbn v\u00e0 \u00e1p su\u1ea5t => do \u0111\u00f3, c\u00f4ng ngh\u1ec7 ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng h\u00ecnh th\u00e0nh.\u00a0<\/p>\r\n\r\n\r\n\r\n

Nh\u01b0 v\u1eady, ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng<\/strong> l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ch\u01b0ng c\u1ea5t x\u1ea3y ra \u1edf \u00e1p su\u1ea5t th\u1ea5p (ch\u00e2n kh\u00f4ng)\u00a0<\/p>\r\n\r\n\r\n\r\n

T\u1eeb \u201cch\u00e2n kh\u00f4ng\u201d c\u00e1c b\u1ea1n hi\u1ec3u theo ngh\u0129a l\u00e0 \u00e1p su\u1ea5t th\u1ea5p ch\u1ee9 kh\u00f4ng \u0111\u1ea1t \u0111\u1ebfn ng\u01b0\u1ee1ng \u00e1p su\u1ea5t b\u1eb1ng kh\u00f4ng tuy\u1ec7t \u0111\u1ed1i. Khoa h\u1ecdc hi\u1ec7n \u0111\u1ea1i ch\u01b0a t\u00ecm ra c\u0169ng nh\u01b0 ch\u1ebf t\u1ea1o \u0111\u01b0\u1ee3c m\u1ed9t v\u00f9ng kh\u00f4ng gian m\u00e0 kh\u00f4ng ch\u1ee9a v\u1eadt ch\u1ea5t ngay c\u1ea3 trong v\u0169 tr\u1ee5\u00a0<\/p>\r\n\r\n\r\n\r\n

\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng<\/strong>\u00a0<\/h2>\r\n\r\n\r\n\r\n

Gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 s\u00f4i c\u1ee7a c\u00e1c ch\u1ea5t t\u00e1ch do gi\u1ea3m \u00e1p su\u1ea5t\u00a0<\/p>\r\n\r\n\r\n\r\n

Ti\u1ebft ki\u1ec7m nhi\u1ec7t n\u0103ng do gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 s\u00f4i\u00a0<\/p>\r\n\r\n\r\n\r\n

T\u0103ng kh\u1ea3 n\u0103ng bay h\u01a1i cao h\u01a1i t\u1eeb \u0111\u00f3 thu \u0111\u01b0\u1ee3c ch\u1ea5t tinh khi\u1ebft h\u01a1n\u00a0<\/p>\r\n\r\n\r\n\r\n

Gi\u1ea3m th\u1eddi gian ch\u01b0ng\u00a0<\/p>\r\n\r\n\r\n\r\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c c\u00e1c n\u01b0\u1edbc tr\u00ean th\u1ebf gi\u1edbi s\u1eed d\u1ee5ng do h\u1ecd c\u00f3 ngu\u1ed3n \u0111\u1ea7u t\u01b0 l\u1edbn, d\u1ec5 s\u1eeda ch\u1eefa, b\u1ea3o tr\u00ec. \u1ede Vi\u1ec7t Nam, kho\u1ea3ng 1-2% c\u00e1c l\u00f2 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, th\u01b0\u1eddng l\u00e0 c\u00e1c c\u00f4ng ty. Ngo\u00e0i ra, do ti\u1ebft ki\u1ec7m nhi\u1ec7t n\u0103ng n\u00ean \u0111\u1ee1 g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng, c\u00e1c c\u00f4ng ty th\u01b0\u1eddng c\u00f3 thanh tra, gi\u00e1m s\u00e1t v\u1ec1 vi\u1ec7c n\u00e0y.\u00a0<\/p>\r\n\r\n\r\n\r\n

C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng c\u1ee7a r\u01b0\u1ee3u truy\u1ec1n th\u1ed1ng<\/strong>\u00a0<\/h3>\r\n\r\n\r\n\r\n

V\u1ec1 c\u01a1 b\u1ea3n c\u00e1c giai \u0111o\u1ea1n ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng c\u0169ng gi\u1ed1ng nh\u01b0 ch\u01b0ng c\u1ea5t th\u1ee7y h\u1ea1 hay th\u1ee7y th\u01b0\u1ee3ng. Ch\u00fang ta thu \u0111\u01b0\u1ee3c \u201cr\u01b0\u1ee3u \u0111\u1ea7u\u201d t\u1ee9c l\u00e0 r\u01b0\u1ee3u c\u00f3 n\u1ed3ng \u0111\u1ed9 methanol v\u00e0 andehit cao, n\u1ed3ng \u0111\u1ed9 n\u00e0y cao h\u01a1n khi ch\u01b0ng c\u1ea5t th\u00f4ng th\u01b0\u1eddng do c\u00f3 \u00e1p su\u1ea5t b\u00e9. Ti\u1ebfp theo, ch\u00fang ta thu \u0111\u01b0\u1ee3c r\u01b0\u1ee3u.\u00a0<\/p>\r\n\r\n\r\n\r\n

Y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi thi\u1ebft b\u1ecb trong ch\u01b0ng c\u1ea5t r\u01b0\u1ee3u truy\u1ec1n th\u1ed1ng<\/strong>\u00a0<\/h3>\r\n\r\n\r\n\r\n

V\u00ec ch\u1ecbu l\u1ef1c n\u00e9n t\u1eeb m\u00f4i tr\u01b0\u1eddng ch\u00e2n kh\u00f4ng n\u00ean th\u00e0nh n\u1ed3i \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb SUS304 ho\u1eb7c SUS163L (inox 304 v\u00e0 inox 316) \u0111\u1ec3 t\u1ea1o \u0111\u1ed9 c\u1ee9ng, b\u1ec1n b\u1ec9. Ngo\u00e0i ra, n\u00f3 c\u0169ng h\u1ea1n ch\u1ebf r\u1ec9 s\u00e9t, r\u00f2 r\u1ec9 v\u00e0 ch\u1ed1ng oxy h\u00f3a. \u0110a s\u1ed1 c\u00e1c n\u1ed3i \u0111\u1ec1u s\u1eed d\u1ee5ng ch\u1ea5t li\u1ec7u inox v\u00e0 \u0111\u1ed3ng.<\/p>\r\n

\"M\u00e1y
M\u00e1y ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng r\u01b0\u1ee3u<\/em><\/strong><\/figcaption><\/figure>\r\n\r\n\r\n\r\n

\u1ee8ng d\u1ee5ng c\u1ee7a ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng v\u1edbi c\u00e1c ng\u00e0nh ngh\u1ec1<\/strong>\u00a0<\/h2>\r\n\r\n\r\n\r\n

Hi\u1ec7n nay, \u0111a s\u1ed1 c\u00e1c nh\u00e0 m\u00e1y l\u1edbn \u0111\u1ec1u s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng v\u00ec c\u00f3 qu\u00e1 nhi\u1ec1u \u01b0u \u0111i\u1ec3m, c\u1ee5 th\u1ec3 nh\u01b0:\u00a0<\/p>\r\n\r\n\r\n\r\n

Ch\u01b0ng c\u1ea5t n\u01b0\u1edbc tr\u00e1i c\u00e2y\u00a0<\/strong><\/p>\r\n\r\n\r\n\r\n

\u01afu \u0111i\u1ec3m:\u00a0 t\u1ea1o ra n\u01b0\u1edbc \u00e9p c\u00f3 h\u00e0m l\u01b0\u1ee3ng calo th\u1ea5p, duy tr\u00ec l\u01b0\u1ee3ng vitamins v\u00e0 gi\u1eef l\u1ea1i \u0111\u01b0\u1ee3c h\u01a1n 80% m\u00f9i th\u01a1m v\u00e0 h\u01b0\u01a1ng v\u1ecb t\u1ef1 nhi\u00ean c\u1ee7a nguy\u00ean li\u1ec7u\u00a0<\/p>\r\n\r\n\r\n\r\n

=> C\u00f4ng ngh\u1ec7 n\u00e0y chuy\u00ean \u0111\u01b0\u1ee3c c\u00e1c h\u00e3ng s\u1ea3n xu\u1ea5t n\u01b0\u1edbc tr\u00e1i c\u00e2y cho nh\u1eefng ng\u01b0\u1eddi \u0103n ki\u00eang\u00a0<\/p>\r\n\r\n\r\n\r\n

H\u00f3a d\u1ea7u\u00a0<\/strong><\/p>\r\n\r\n\r\n\r\n

Th\u01b0\u1eddng \u1ee9ng d\u1ee5ng trong l\u1ecdc d\u1ea7u, k\u1ebft h\u1ee3p nhi\u1ec1u c\u00f4ng ngh\u1ec7 l\u1ecdc kh\u00e1c. Nh\u01b0 ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng v\u00e0 ch\u01b0ng c\u1ea5t h\u01a1i n\u01b0\u1edbc, kh\u00f4ng nh\u1eefng t\u00e1ch s\u1ea1ch h\u01a1n m\u00e0 c\u00f2n t\u00e1ch s\u00e2u h\u01a1n ph\u00e2n \u0111o\u1ea1n c\u1ee7a d\u1ea7u nh\u1eddn.<\/p>\r\n

\"Ch\u01b0ng
Ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng trong l\u1ecdc d\u1ea7u<\/em><\/strong><\/figcaption><\/figure>\r\n\r\n\r\n\r\n

L\u1ecdc n\u01b0\u1edbc\u00a0<\/strong><\/p>\r\n\r\n\r\n\r\n

C\u00f4ng ngh\u1ec7 l\u1ecdc n\u01b0\u1edbc bi\u1ec3n kh\u00e1 ph\u00e1t tri\u1ec3n trong nhi\u1ec1u n\u0103m g\u1ea7n \u0111\u00e2y. C\u00f4ng ngh\u1ec7 ch\u00e2n kh\u00f4ng gi\u00fap cho vi\u1ec7c l\u1ecdc n\u01b0\u1edbc \u00edt t\u1ed1n nguy\u00ean li\u1ec7u sinh nhi\u1ec7t, do \u0111\u00f3 ti\u1ebft ki\u1ec7m chi ph\u00ed.\u00a0<\/p>\r\n\r\n\r\n\r\n

Ngo\u00e0i ra:\u00a0<\/p>\r\n\r\n\r\n\r\n

S\u1ea3n xu\u1ea5t tinh d\u1ea7u\u00a0<\/p>\r\n\r\n\r\n\r\n

H\u00f3a l\u1ecfng oxy\u00a0<\/p>\r\n\r\n\r\n\r\n

S\u1ea3n xu\u1ea5t d\u01b0\u1ee3c ph\u1ea9m\u00a0<\/p>\r\n\r\n\r\n\r\n

\u0110i\u1ec1u ch\u1ebf h\u00f3a h\u1ecdc\u00a0<\/p>","protected":false},"excerpt":{"rendered":"

Ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ch\u01b0ng c\u1ea5t m\u00e0 c\u00e1c n\u01b0\u1edbc ph\u00e1t tri\u1ec3n tr\u00ean th\u1ebf gi\u1edbi s\u1eed d\u1ee5ng. T\u1ea1i Vi\u1ec7t Nam, kh\u00e1i ni\u1ec7m n\u00e0y v\u1eabn c\u00f2n m\u1edbi m\u1ebb, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi ng\u00e0nh r\u01b0\u1ee3u truy\u1ec1n th\u1ed1ng. H\u00e3y c\u00f9ng R\u01b0\u1ee3u Vi\u1ec7t t\u00ecm hi\u1ec3u t\u1ea5t t\u1ea7n t\u1eadt v\u1ec1 ch\u01b0ng c\u1ea5t ch\u00e2n kh\u00f4ng nh\u00e9! 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