An improved process for the low temperature preparation of ethylene glycol by the catalytic hydration of ethylene oxide using a fluorinated alkyl sulfonic acid ion exchange resin is described.doi:US4165440 ALeo KimUSK.Leo.Catalytic hydration of ethylene oxide to ethylene glycol. . 1979...
The traditional technology for manufacturing ethylene glycol at home and abroad was reviewed, including direct hydration andcatalytic hydrationof ethylene oxide. 对国内外乙二醇合成的传统工艺:直接水合法、催化水合法和碳酸乙烯酯法进行了介绍;对乙二醇合成的新工艺,包括乙二醇和碳酸二甲酯联产法和C1化学法的工艺...
Niobium oxide (Nb 2O 5) supported on α-alumina (α-Al 2O 3) prepared by impregnation was studied for hydration of ethylene oxide. The effects of niobium oxide loadings, calcination temperature and molar ratio of water to ethylene oxide (EO) on the reaction performance were investigated. The...
Catalytic hydration of ethylene oxide(EO)to produce ethylene glycol(EG)on a HCO-3 type strong base anion-exchange resin catalyst S201 was studied in a multistage fixed bed reactor. 以HCO3-型强碱性阴离子交换树脂为催化剂,采用多级固定床反应器串联的催化水合工艺(简称多级工艺)对环氧乙烷(EO)制乙二...
the process were detected. The mathematical model of the reactor with determined parameters adequately describing the rate of the reaction, product distribution and catalyst deactiva- tion and swelling has been developed. Introduction Hydration of ethylene oxide is an industrial approach to ...
Momose, Hiroo et al., " Vapor-Phase Direct Hydration of Ethylene over Zirconium Tungstate Catalyst ", Journal of Catalysis 77, 23-31 (1982).Momose, Hiroo et al., " Vapor-Phase Direct Hydration of Ethylene over Zirconium Tungstate Catalyst ", Journal of Catalysis 77, 23-31 (1982) Jan. ...
a首先用四种催化剂:十二水合硫酸铁铵(即硫酸高铁铵)、硫酸氢钠、无水硫酸镁、对甲苯磺酸 First uses four catalysts: 12 hydration ammonium ferric sulfates (i.e. sulfuric acid high-valence iron ammonium), sodium hydrogen sulfate, anhydrous magnesium sulfate, to toluene sulfonic acid[translate] ...
Photometric method for the determination of low concentrations of hydrogen peroxide by the peroxidase catalyzed oxidation of N,N-diethyl-p-phenylenediamine (DPD). Water Res. 22, 1109–1115 (1988). Article CAS Google Scholar Li, B. et al. Hydration of epoxides on [CoIII(salen)] encapsulated...
4) Catalyic Ammoniation-Dchydration 催化氨化和脱水5) Catalytic dehydration of methanol 甲醇催化脱水6) methanol dehydration catalyst 甲醇脱水催化剂补充资料:催化脱水 分子式:CAS号:性质:在催化剂作用下,含氧的反应物在分子内或分子间脱去水分子生成新化合物的反应。如2-苯乙醇在A12O3上脱水为苯乙烯。
Industrially, 1,2-propanediol is synthesized through the hydration of propylene [164]. When using glycerol as the feed, selective hydrogenolysis of glycerol for producing 1,2-propanediol has been extensively carried out over noble metals (e.g., Pd, Pt, and Ru) because of their capability to ...