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(12) Patent: | (11) CA 1089190 |
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(21) Application Number: | 1089190 |
(54) English Title: | CONVERSION CATALYTIQUE D'UN SULFATE D'AMMONIUM EN DIOXYDE DE SOUFRE ET AMMONIAC |
(54) French Title: | CATALYTIC CONVERSION OF AN AMMONIUM SULPHATE TO SULPHUR DIOXYDE AND AMMONIA |
Status: | Term Expired - Post Grant |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | ROBIC, ROBIC & ASSOCIES/ASSOCIATES |
(74) Associate agent: | |
(45) Issued: | 1980-11-11 |
(22) Filed Date: | 1977-05-31 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | French |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | ||||||
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PRECIS DE LA DIVULGATION:
La présente invention a pour objet ?n procédé de
conversion d'un sulfate d'ammonium fondu en ammoniac et dioxyde
de soufre, dans lequel on met ledit sulfate d'ammonium fondu
au contact d'un catalyseur et l'on recueille l'ammoniac et le
dioxyde de soufre. Ce procédé est caractérisé en ce que le
catalyseur est choisi parmi les composés du molybdène et/ou les
composés du tungstène.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
Sorry, the representative drawing for patent document number 1089190 was not found.
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Description | Date |
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Inactive: IPC from MCD | 2006-03-11 |
Inactive: Expired (old Act Patent) latest possible expiry date | 1997-11-11 |
Grant by Issuance | 1980-11-11 |
There is no abandonment history.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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INSTITUT FRANCAIS DU PETROLE |
Past Owners on Record |
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ANDRE DESCHAMPS |
HENRI GRUHIER |
PHILIPPE RENAULT |