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:
May. 26, 1987
Filed:
Jan. 13, 1986
Applicant:
Inventor:
Robert Russotti, Rumson, NJ (US);
Assignee:
Voltaix, Inc., North Branch, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423645 ;
Abstract
Disclosed is a high yield method for the production of gaseous germane of high purity comprising the steps of: forming an aqueous, alkaline first solution of GeO.sub.2 in alkali metal hydroxide wherein the GeO.sub.2 is present at a molar concentration of less than 0.2 and the ratio of GeO.sub.2 to alkali metal hydroxide is less than 1 to 2; adding an alkalai metal borohydride to the first solution at a mole ratio of BH.sub.4 to GeO.sub.2 of greater than 4:1; reacting the second solution with 1.5 to 3.0 M H.sub.2 SO.sub.4 whereby to form a gaseous product containing GeH.sub.4 ; and recovering GeH.sub.4 from the gaseous product.