Patent · US Expired

Catalytic conversion of an ammonium sulfate to sulfur dioxide and ammonia

US4081515A · kind A · utility

4Cited by

4References

8Claims

0Family size

Assignee

INSTITUT FRANCAIS DU PETROLE · FR

Inventors

Henri Gruhier · Châtillon, FR
Andre Deschamps · Villepreux, FR
Philippe Renault · Noisy-le-Roi, FR

Key dates

Filing date	May 31, 1977
Grant date	Mar 28, 1978
Priority date	—
Expiry date	May 31, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/52
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Molten ammonium sulfate is converted to ammonia and sulfur dioxide by heating in the presence of at least one molybdenum and/or tungsten compound, preferably at a temperature in the range of 350.degree. to 500.degree. C.

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