Process for producing sodium percarbonate

US4388287A · kind A · utility

Assignee

• Mitsubishi Gas Chemical Company, Inc. · JP

Inventors

• Junichiro Sugano · Nagoya, JP
• Tomoyuki Yui · Tsukuba, JP
• Yoshitugu Minamikawa
• Tsuneo Fujimoto · Yokkaichi, JP

Key dates

• Filing date: Oct 27, 1981
• Grant date: Jun 14, 1983
• Expiry date: Oct 27, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B15/103
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for producing sodium percarbonate which comprises reacting sodium carbonate with hydrogen peroxide in the presence of a stabilizer againsts the decomposition of hydrogen peroxide in a working solution of sodium carbonate, hydrogen peroxide and water, said stabilizer being at least one N,N,N',N'-tetra(phosphonomethyl)diaminoalkane of the following formula ##STR1## wherein R is either ##STR2## and n is 0 or 1 to 4.