반응식
[S].[S:2](=O)=[O:3].[NH3:5].[S:6]([O-:10])([O-])(=[O:8])=[O:7].S([O-])([O-])(=O)=O.[NH4+].[NH4+]>O>[S:6]([O-:10])([O-:8])(=[O:7])=[S:2].[NH4+:5].[NH4+:5].[OH-:3].[NH3:5]참가 물질
실험 절차
The present invention accomplishes its desired objects by broadly providing an improved process of preparing a metallic sulphate from mixing of the corresponding metallic sulphide concentrates with ammonium sulphate and heating the mixture to yield the metallic sulphate, evolved sulphur, sulphur dioxide, ammonia, and water. The improvement comprises heating the mixture by directly contacting the mixture with products of combustion of a heating fuel. The metallic sulphate may initially be added before heating to the mixture of the corresponding metallic sulphide and ammonium sulphate to inhibit the development of semi-fluid conditions in the reaction of the metallic sulphide concentrates with the ammonium sulphate. Heating may be done at a temperature between about 150° C. and 480° C., and a diluent gas may additionally be added to the products of combustion. A raw fuel gas may be also added above the mixture being heated and the volatile sulphur, sulphur dioxide and ammonia may be subsequently dissolved in water in an absorption tower to produce solutions of ammonium thiosulphate and ammonia hydroxide.
후처리
- temperatureThe improvement comprises heating the mixture
- temperatureHeating may
- custombe done at a temperature between about 150° C. and 480° C.
- additiona diluent gas may additionally be added to the products of combustion
- additionA raw fuel gas may be also added above the mixture
- temperaturebeing heated
출처 및 근거
- ORD 기록
- ord-77c0efef6b184ecabdb8222687e8d302
- 출처 데이터셋
- uspto-grants-1979_01
- 특허 번호
- US04133865
연결된 노트
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