Patent · US Active

Method for producing high purity germane by a continuous or semi-continuous process

US9174853B2 · kind B2 · utility

0Cited by
2References
13Claims
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Assignee

Inventors

Key dates

Filing dateNov 13, 2014
Grant dateNov 3, 2015
Priority date—
Expiry dateNov 13, 2034

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01D2257/55
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A continuous or semi-continuous process for producing a high purity germane includes (a) preparing a reaction mixture containing hydrogen and crude germane and (b) separating the hydrogen from the crude germane by a pressure swing adsorption process. The pressure swing adsorption process results in a hydrogen-rich product stream and a germane-rich product stream. The method further includes (c) purifying the germane-rich product stream by continuous distillation thereof to remove impurities therefrom and to produce a high purity germane containing less than 0.1 volume percent of impurities.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.