Stabilizing a solvent mixture of ethylene carbonate and an alkyl

Details Stabilizing a solvent mixture of ethylene carbonate and an alkyl Stabilizing a solvent mixture of ethylene carbonate and an alkyl

1989-09-22

1992-01-07

Lieberman, Paul

Compositions

Water-softening or purifying or scale-inhibiting agents

252162, 252364, C11D 750

Patent

active

050788973

ABSTRACT:
To avoid freezing out of ethylene carbonate from a mixture of the carbonate and at least one alkyl diester, such as ethylene diacetate, the mixture is "well mixed" at an elevated temperature between the melting point of the carbonate and the denaturing point of the mixture for a predetermined time. The product can be cooled to at least about 32.degree. F. (0.degree. C.) without the formation of carbonate crystals.

REFERENCES:
patent: 2935479 (1960-05-01), Oberdorfer, Jr.
patent: 3113155 (1963-12-01), Sims
patent: 3796602 (1974-03-01), Briney et al.
patent: 4192760 (1980-03-01), Junger et al.
patent: 4199021 (1980-04-01), Thoma
patent: 4360442 (1982-11-01), Reedy et al.
patent: 4361491 (1982-11-01), Truelock
patent: 5007969 (1991-04-01), Doscher

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