
Lactic kua
Molecular cov mis: c3h6o3
Tus lej lej: 50-21-5
HS code: 2918110000
Tsos: tsis muaj kob rau lub teeb daj ua kua
UN: 1760
Lactic Acid
Txoj Kev Fermentation
Qhov tseem ceeb ntawm fermentation yog los kho tus nqi pH uas muaj txog 5 3-5}} hnub los muab cov lactic acid.
Cov ntaub ntawv raw ntawm fermentation feem ntau cov ntaub ntawv wawch xws li cov pob kws, kuj muaj cov khoom siv raw zaub mov pov tseg pov tseg pov tseg cov khib nyiab thiab ntses cov khib nyiab los tsim cov kua qaub lactic). There are many lactic acid bacteria that can produce acid in lactic acid fermentation stage, but there are not many with high acid quality, mainly rhizopus and Lactobacillus. Txawv sib txawv muaj cov kev sib txawv fermentation txoj hauv kev, uas tuaj yeem faib ua homotype fermentation thiab hererotype fermentation. Qhov tseeb, vim muaj nyob ntawm lwm cov kev ua haujlwm ntawm cov kab mob ntawm cov microorganisms, nws yuav tsis yog qhov yooj yim fermentation txoj kev.
Yam |
Qho kawg |
Lam xav
|
80.1%
|
Tshiab xim
|
70rha
|
Veeto tshuaj purity
|
95%
|
Ceev
|
1.19 g / cm3
|
Tshuaj ntsuab
|
< 20 ppm
|
Naj hoom
|
< 5 ppm
|
Liv
|
< 10 ppm
|
Synthesis txoj kev
Cov txheej txheem hluavtaws rau kev npaj ntawm lactic acid suav nrog txoj kev lacto-nitrile, thiab lwm yam. Propionic accocyanic acid txujci
(1) mis mis nitrile txujci
Lacto-Nitrile cov txheej txheem yog txhawm rau txuas ntxiv acetalhyde thiab coldrile rau cov lacto-nitrile rau hauv hydrolysis kettle, txhaj rau cov roj sulfuric acid thiab dej, Yog li ntawd lacto-nitrile hydrolysis kom tau txais cov roj Lactic acid. Then, the crude lactic acid is sent to the esterification kettle, and ethanol is added to esterify, and then refined lactic acid is produced by distillation, concentration and decomposition. Ob lub tuam txhab Sterling tshuaj hauv Tebchaws Asmeskas thiab Mushasino Cov tuam txhab tshuaj lom neeg hauv Nyij Pooj uas siv cov qauv no los ua cov synthesize lactic acid.
(2) Acrylonitrile Txoj Kev
Acrylonitrile cov txheej txheem yog xa acrylonitrile thiab sulfuric acid mus rau hydrolyzate mus rau hauv hydrolyzate mus rau Esterification reactor kom hnov mob nrog methanol; Tom qab sib cais lub ammonium bisulfate, tus neeg ruam yog xa mus rau kem distillation, thiab cov khoom siv kho kom zoo nkauj tau txais hauv qab ntawm kem. Tom qab ntawd cov chaw ua kom zoo yog xa mus rau kab thib ob, ua kom sov siab, hauv qab ntawm cov pej thuam los tsim cov tshuaj lactic acid, cov tshuab nqus tsev zoo nkauj.
(3) Cov Qauv Acid
Cov txheej txheem acid prof siv profionic acid raws li cov khoom siv raw kom tau txais cov lactic acid los ntawm chlorination thiab hydrolysis. Tom qab Esterification, Rectification thiab Hydrolysis, cov khoom tau txais. Tus nqi khoom ntawm cov qauv no yog kim kim, thiab tsuas yog qee cov tuam ntxhab xws li Nyijpooj Kev Lag Luam.
Ua tsaug rau koj cov kev mus ntsib thiab tos txais koj cov lus nug zoo!
Cim npe nrov: Lactic kua, Tuam Tshoj Lactic Fluist manufacturers, lwm tus neeg, hoobkas
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