| 发明名称 |
Process for reducing molten ammonium sulfates containing metallic impurities to ammonia and sulfur dioxide |
| 摘要 |
Molten ammonium sulfates containing iron sulfate as an impurity may be reduced with sulfur or a sulfur compound over long periods provided a fraction of these impure ammonium sulfates is withdrawn, treated for iron removal and fed back to the reduction zone.
|
| 申请公布号 |
US4029745(A) |
申请公布日期 |
1977.06.14 |
| 申请号 |
US19750597532 |
申请日期 |
1975.07.21 |
| 申请人 |
INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRICANTS ET ENTERPRISE DE RECHERCHES ET D'ACTIVITIES PETROLIERS ELF |
发明人 |
DEZAEL, CLAUDE;RENAULT, PHILIPPE;DESCHAMPS, ANDRE |
| 分类号 |
C01B17/50;C01C1/02;C02F1/64;(IPC1-7):C01B17/50 |
主分类号 |
C01B17/50 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
