A method for determining the characteristic of one or more components in a step of an acetic acid production process using Raman spectroscopy. The process includes providing a feed stream comprising m
Processes for producing acetic acid and determining corrosion therein are described herein. The processes generally include contacting methanol and carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions sufficient to form acetic acid, wherein the liquid reaction medium ...
acetic acid production was expected to be at acid pH. See Figure 1.According to literature[8],at low pH below pH 6 undissociated acetic acid is responsible for growth inhibition and at high pH (above pH 6) ionized acetate is responsible for growth inhibition. The maximum specific growth ...
A process for the production and purification of gabapentin, i.e. 1-(aminomethyl)cyclohexyl-acetic acid, which comprises hydrolysis of 2-aza-spiro[4.5]decan-3-one with HCl, treatment of the resulting product and filtration with acetone, dissolution in water at isoelectric pH and crystallization ...
Quinoline-3-acetic acid derivative, process for pr 优质文献 相似文献 参考文献QUINOLINE-3-ACETIC ACID DERIVATIVE, PROCESS FOR PRODUCING THE SAME, AND USE THEREOF A quinoline-3-acetic acid derivative represented by general formula (I) or a medicinally acceptable salt thereof, wherein R, R and R...
Process for production of (s) - or (r) -beta-optically active amino acids and esters of (R) - or (s) -beta-aminioacidos optically active, and (s) - or (r) ... A process for preparing a (S or R) --optically active amino acid represented by formula (II): wherein R represent...
QUINOLINE-3-ACETIC ACID DERIVATIVE, PROCESS FOR PR 优质文献 相似文献 引证文献Mercaptoketones and mercaptoalcohols and a process for their preparation This invention relates to matrix metalloproteinase (MMP) inhibiting compounds of the formula: ##STR1## where Ris C-Calkyl, straight or branched and ...
This process is similar to the steps in the biosynthetic pathway of a tropolone-type metabolite, tropodithietic acid, in P. gallaeciensis (e.g., transamination and oxidative decarboxylation of phenylalanine to PAA)26. PAA production in P. gallaeciensis was not observed when it was cultured...
Acetic acid is an important industrial commodity chemical, with a world demand of about 6 million tonnes per year and many industrial uses. The preferred industrial method for its manufacture is by the carbonylation of methanol and this accounts for approximately 60 per cent of thetotal world ace...
A production process of acetic acid according to the present invention inhibits concentration of hydrogen iodide and improves a liquid-liquid separation of an overhead from a distillation column. Acetic acid is produced by distilling a mixture containing hydrogen iodide, water, acetic acid and methyl...