The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2001
Filed:
Oct. 28, 1999
Anatoly Pustilnik, Tucson, AZ (US);
Michael Hojjatie, Tucson, AZ (US);
Tessenderlo Kerley, Inc., Phoenix, AZ (US);
Abstract
Tetrathiocarbonate salt solutions are prepared by dissolving sulfur in carbon disulfide to form a sulfur solution. An alkali metal hydroxide solution and an alkali metal hydrosulfide are added to the sulfur solution to form the tetrathiocarbonate salt. The process yields tetrathiocarbonate salts in substantially higher weight ratios with respect to trithiocarbonate salts. Aqueous solutions of tetrathiocarbonate salts can be produced in substantially higher concentrations, even approaching saturation. The process also enables tetrathiocarbonate salts to be produced at or near atmospheric pressure and at only slightly elevated temperatures.