Patent · US Active

Removal of hydroxide ion from alkoxide ion solutions

USH938H · kind H · statutory invention registration

1Cited by

0References

5Claims

0Family size

Inventors

H. Hunter Paalman · Walnut Creek, US
Jonathan A. Okorley · Pittsburg, US
James A. Sinclair · Midland, US

Key dates

Filing date	—
Grant date	Jul 2, 1991
Priority date	—
Expiry date	—

Classification

Technology area (CPC —)General

Abstract

The concentration of alkali metal hydroxide contaminants in solutions of alkali metal alkoxides in alcohols is reduced to below about 0.1 percent by adding an alkyl alkanoate ester. For example, a solution of sodium methoxide in methanol containing about 0.04 percent sodium hydroxide was obtained by adding a small amount of methyl acetate. The alkali metal alkanoate salt formed as a by-product does not deleteriously affect most uses of such solutions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.