- Recovery of mercaptoalkanoic acids using alkylene glycol ethers
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Various mercaptoalkanoic acids are recovered from an aqueous medium or water in which they are contained by a liquid-liquid solvent extraction operation employing at least one of an alkanoic acid ester and an alkylene glycol ether. In one embodiment, thioglycolic acid has been extracted with ethyl acetate. In another embodiment, it has been recovered with ethylene glycol monoethyl ether acetate. In a further embodiment, it has been recovered with diethylene glycol diethyl ether.
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- Isomerization and Hydrogenolysis of 1,3-Dioxacycloalkanes on Metal Catalysts
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The isomerization of 5-, 6-, and 7-membered 1,3-dioxacycloalkanes to esters on various metal catalysts is reported, the hydrogenolysis pattern for this type of compound is determined, and a new reaction mechanism is proposed to interpret these catalytic processes.
- Bartok, Mihaly,Czombos, Jozsef
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p. 106 - 108
(2007/10/02)
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