Title:
METHOD FOR DECREASING COPPER CORROSIVENESS OF ORGANIC SULFIDES
Document Type and Number:
Japanese Patent JP3172236
Kind Code:
B2
Abstract:
PURPOSE: To effectively lessen the copper corrosiveness of sulfur-contg. substances, such as dialkyl polysulfides.
CONSTITUTION: This method of lowering the copper corrosiveness of the org. sulfur-contg. substances corrosive to copper consists of treating the sulfur-contg. substances with an alkaline metal-contg. or alkaline earth metal-contg. substance capable of dissolving the sulfur-contg. substances to elementary sulfur. The treatment is executed in a liquid reaction medium comprising water and about ≥1 wt.%. at least one kind of ketones having solubility in water. The org. sulfur-contg. substances treated by the method have the lower corrosiveness to the copper.
Inventors:
Edmund Frank Perotsuji
Jiyoung Frederick Seaverse
Jiyoung Frederick Seaverse
Application Number:
JP4054792A
Publication Date:
June 04, 2001
Filing Date:
January 31, 1992
Export Citation:
Assignee:
Ethyl Petroleum Additives Incorporated
International Classes:
C23F11/16; C07C321/14; (IPC1-7): C23F11/16; C07C321/14
Attorney, Agent or Firm:
Heikichi Odashima
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