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:
Jun. 29, 1976
Filed:
Jun. 17, 1975
George Dietz, Jr, Watertown, CT (US);
Robert M Skomoroski, Paterson, NJ (US);
Robert G Zobbi, Southbury, CT (US);
American Chemical & Refining Company Inc., Waterbury, CT (US);
Abstract
A process for making high purity alkali produced is sulfite substantially free from chloride ions includes the step of admixing gold chloride solution with magnesium oxide at an alkaline pH to form magnesium aurate which is recoverable as a coating upon the magnesium oxide precipitate. The magnesium aurate is thereafter admixed with a solution of alkali metal sulfite at an alkaline pH to produce alkali metal gold sulfite and a precipitate of magnexium oxide. When the alkali metal gold sulfite being produces ia a potassium gold sulfite, the process desirably includes the step of admixing the potassium gold sulfite with a sulfamic acid compound to provide stability. The magnesium aurate precipitate is desirably rinsed to remove chloride ion contamination.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile