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Expired
Application number
GB12650/54A
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Vogogas S A
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Vogogas S A
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Publication of GB751277ApublicationCriticalpatent/GB751277A/en
C01C1/245—Preparation from compounds containing nitrogen and sulfur
C01C1/246—Preparation from compounds containing nitrogen and sulfur from sulfur-containing ammonium compounds
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Chemical & Material Sciences
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Organic Chemistry
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Inorganic Chemistry
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Treating Waste Gases
(AREA)
Abstract
<PICT:0751277/III/1> In the production of ammonium sulphate and sulphur by decomposing an aqueous solution of ammonium sulphite, bisulphite, thiosulphate or polythionate or a mixture of said salts in an autoclave under pressure in the presence of mineral acid, preferably sulphuric acid, the autoclave is provided with separate valved outlet pipes for the discharge of sulphur dioxide gas and ammonium sulphate liquor. The separate discharge pipes may be provided in the autoclave itself (Fig. 1, not shown) or in a settling vessel in communication with the autoclave as shown (pipes 7 and 3 respectively). The autoclave may be provided with a preheater 8 and a baffle 4. Sulphur may be discharged through pipes 5 and 10.
GB12650/54A1953-08-081954-04-30Apparatus for the production of ammonium sulphate
ExpiredGB751277A
(en)