Patent · US Expired

NaOH production from ceramic electrolytic cell

US5290405A · kind A · utility

57Cited by

2References

34Claims

0Family size

Assignee

Ceramatec, Inc. · US

Inventors

Ashok V. Joshi · Salt Lake City, US
Meilin Liu · Norcross, US
Alf Bjorseth · Oslo, NO
Lars Renberg · Västerhaninge, SE

Key dates

Filing date	Feb 28, 1992
Grant date	Mar 1, 1994
Priority date	—
Expiry date	Feb 28, 2012

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/0018
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A electrolytic cell for efficiently producing caustic from sodium salts via use of a thin membrane of ceramic or ceramic composite electrolyte is disclosed. Ceramic electrolytes having a very mobile sodium ion such as NASICON are very effective in cells producing concentrated caustic from sodium salts of strong acids.

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