WebIn a process for producing a lower aliphatic carboxylic acid ester by esterifying a lower aliphatic carboxylic acid and a lower olefin into a lower aliphatic carboxylic acid ester using an acid catalyst in a vapor phase, when the system is controlled to contain substantially no acetylene compounds, the deterioration of the catalyst can be remarkably prevented from … WebJan 1, 2000 · Phosphomolybdic acid, H3PO4(MoO3)12, is formed and selectively extracted away from silicate and excess of molybdate reagent into isobutyl acetate. After adjustment of the acidity of the remaining...
Phosphotungstic acid - Wikipedia
In organic chemistry, phosphonates or phosphonic acids are organophosphorus compounds containing C−PO(OR)2 groups (where R = alkyl, aryl, or just hydrogen). Phosphonic acids, typically handled as salts, are generally nonvolatile solids that are poorly soluble in organic solvents, but soluble in water and common alcohols. Many commercially important compounds are phosphonates, including glypho… WebSep 13, 2024 · The screening for aminomethylphosphonic acid (AMPA) revealed contents between 1.9 mg/L and 157 mg/L. This study represents the first in-depth characterization … onstage ny llc
EP4108652A1 - Method for producing alcohol - Google Patents
Weba phosphonic acid derivative, was originally extracted from a Streptomyces sp. bacterium in 1969, but is now fully synthetic. Oral preparations have been used in a number of … WebA supported catalyst comprising a support having supported thereon at least one member selected from the group consisting of heteropolyacids and heteropolyacid salts, in which the heteropolyacid and/or heteropolyacid salt is substantially present in a surface layer region of the support to a depth of 30% from the support surface. WebA catalyst for use in producing acetic acid, comprising as essential components (a) palladium and (b) at least one compound selected from heteropolyacids and/or salts thereof, wherein (c) a vanadium element and/or molybdenum element is contained in a specific proportion. Acetic acid is produced from ethylene and oxygen by a gas phase … iohexol impurities