Patent · US Active

Purification of H2Se

US8361199B2 · kind B2 · utility

0Cited by

14References

13Claims

0Family size

Assignees

Air Liquide Electronics U.S. LP · US
American Air Liquide, Inc. · US

Inventors

Nathan Stafford · Happy Valley, US
Richard J. Udischas · Newark, US

Key dates

Filing date	May 27, 2011
Grant date	Jan 29, 2013
Priority date	—
Expiry date	Jul 12, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2257/80
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Methods of purifying H2Se by removing H2S and/or H2O are disclosed. The amount of H2S in the H2Se-containing gas is reduced below 10 ppmv by passing the H2Se-containing gas through an AW-500 molecular sieve. H2S and H2O are removed by passing H2Se through a 4 A molecular sieve and subsequently passing H2Se through an AW-500 molecular sieve.

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