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:
Feb. 15, 2000
Filed:
Aug. 13, 1998
Hossein Sharifian, Austin, TX (US);
John H Wagonknecht, Cedar Hill, MO (US);
Sachem, Inc., Austin, TX (US);
Abstract
In one embodiment, the present invention relates to a method of preparing a hydroxylammonium salt, involving the steps of: providing an electrochemical cell containing an anode, a cathode, and a divider positioned between the anode and the cathode, to define a catholyte compartment between the cathode and the divider and an anolyte compartment between the anode and the divider; charging the catholyte compartment with a first solution comprising a nitrogen containing compound and a mediator and the anolyte compartment with a second solution comprising an ionic compound; passing a current through the electrochemical cell to produce a hydroxylammonium salt in the catholyte compartment; and recovering the hydroxylammonium salt from the catholyte compartment. In another embodiment, the present invention relates to a method of preparing hydroxylamine, involving the steps of: providing an electrochemical cell containing an anode, a cathode and a divider positioned between the cathode and the anode, to define a catholyte compartment between the cathode and the divider, and an anolyte compartment between the divider and the anode; charging the catholyte compartment with a solution comprising a hydroxylammonium salt and a mediator, and the anolyte compartment with a first electrolyte solution; passing a current through the electrochemical cell to produce hydroxylamine in the catholyte compartment; and recovering hydroxylamine from the catholyte compartment.