Heterogeneous catalytic conversion of glycerol with n-butyl alcohol
The etherification of glycerol with n-butyl alcohol at 140°C in the presence of sulfonated cation-exchange resins and zeolite catalysts in an autoclave reactor has been studied. It has been shown that styrene - divinylbenzene ion-exchange resins are effective catalysts for the production of glycerol n-butyl ethers: the glycerol conversion is about 98% with an n-butyl ether selectivity of about 88 mol % (140°C, 5 h, 5 wt % Amberlyst 36 catalyst, and 10 wt % glycerol in n-butanol). Zeolites Y and β in the H+ form exhibit comparable specific activity (glycerol conversion of no more than 25% under similar conditions) in combination with high selectivity for glycerol di-n-butyl ethers (up to 28%).
Samoilov,Ramazanov,Nekhaev,Maksimov
p. 125 - 130
(2016/04/20)
Thermodynamic characteristics of the sorption of glycerol ethers on stationary phase OV-101
Retention characteristics, temperature dependences of the retention characteristics, and thermodynamic characteristics of sorption on the nonpolar OV-101 phase are determined for 33 glycerol mono-, di-, and triethers with linear and branched monobasic alc
Zhabina,Krasnykh,Levanova
p. 1590 - 1593
(2014/10/16)
POLYOL ETHERS AND PROCESS FOR MAKING THEM
New polyol ether compounds and a process for their preparation. The process comprises reacting a polyol, a carbonyl compound, and hydrogen in the presence of hydrogenation catalyst, to provide the polyol ether. The molar ratio of polyol to carbonyl compound in the process is greater than 5:1.
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Page/Page column 8
(2010/03/31)
Reaction of 2,3-epoxypropyl ethers with 1-butanol
Nucleophilic opening of the oxirane ring in 2,3-epoxypropyl ethers with alcohols in the presence of titanium alkoxides and other catalysts was studied. The mechanism of catalysis by titanium alkoxides was discussed on the basis of comparison with acid-bas
Yatluk,Suvorov,Khrustaleva,Chernyak
p. 769 - 772
(2007/10/03)
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