GB1430786A - - Google Patents

Info

Publication number
GB1430786A
GB1430786A GB2714073A GB2714073A GB1430786A GB 1430786 A GB1430786 A GB 1430786A GB 2714073 A GB2714073 A GB 2714073A GB 2714073 A GB2714073 A GB 2714073A GB 1430786 A GB1430786 A GB 1430786A
Authority
GB
United Kingdom
Prior art keywords
gas
sulphuric acid
ammonium
temperature
june
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2714073A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1430786A publication Critical patent/GB1430786A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/58—Recovery of sulfur dioxide from acid tar or the like or from any waste sulfuric acid

Abstract

1430786 Sulphur dioxide containing gas DAVY POWERGAS GmbH 7 June 1973 [8 June 1972] 27140/73 Heading C1A An aqueous wash solution containing ammonium salts of sulphurous acid and optionally of sulphuric acid, or from a waste sulphuric acid containing an ammonium salt of sulphuric acid is sprayed into a reaction chamber in which it is heated to a temperature of from 850‹ to 1200‹ C. in the presence of an excess of molecular oxygen-, the excess being maintained such that the gas leaving the chamber has a content of molecular oxygen of from 0À5 to 2À9 volume per cent. The aqueous wash solution may result from the ammonia washing of an SO 2 -containing gas and may contain ammonium sulphite, ammonium hydrogen sulphite and optionally ammonium sulphate. The salts are split thermally to give an SO 2 -containing gas. The temperature in the reaction chamber may be maintained by burning a fuel gaseous at normal temperature such as natural gas or methane. The split gas may be worked up in known manner by contact oxidation and absorption of the oxidized gas to form sulphuric acid, or reduced to form elemental sulphur.
GB2714073A 1972-06-08 1973-06-07 Expired GB1430786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722227878 DE2227878B2 (en) 1972-06-08 1972-06-08 PROCESS FOR THE PRODUCTION OF GASES CONTAINING SULFUR DIOXIDE

Publications (1)

Publication Number Publication Date
GB1430786A true GB1430786A (en) 1976-04-07

Family

ID=5847158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2714073A Expired GB1430786A (en) 1972-06-08 1973-06-07

Country Status (7)

Country Link
JP (1) JPS4962394A (en)
BE (1) BE800683A (en)
DE (1) DE2227878B2 (en)
FR (1) FR2187683B1 (en)
GB (1) GB1430786A (en)
IT (1) IT987920B (en)
NL (1) NL7307957A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190909A (en) * 1986-05-02 1987-12-02 Boc Group Plc Treatment of waste material
US4853206A (en) * 1986-05-02 1989-08-01 The Boc Group Plc Treatment of waste material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490347A (en) * 1983-02-07 1984-12-25 E. I. Du Pont De Nemours And Company Process for sulfuric acid regeneration
US5498790A (en) * 1993-06-09 1996-03-12 Novus International, Inc. Regeneration of sulfuric acid from sulfate by-products of 2-hydroxy-4-(methylthio)butyric acid manufacture

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51557B2 (en) * 1971-03-02 1976-01-08
DE2110036C3 (en) * 1971-03-03 1975-10-02 Davy Powergas Gmbh, 5000 Koeln Process for splitting ammonium sulphate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190909A (en) * 1986-05-02 1987-12-02 Boc Group Plc Treatment of waste material
US4853206A (en) * 1986-05-02 1989-08-01 The Boc Group Plc Treatment of waste material
GB2190909B (en) * 1986-05-02 1990-05-02 Boc Group Plc Treatment of waste material

Also Published As

Publication number Publication date
FR2187683A1 (en) 1974-01-18
IT987920B (en) 1975-03-20
BE800683A (en) 1973-10-01
NL7307957A (en) 1973-12-11
FR2187683B1 (en) 1977-09-30
JPS4962394A (en) 1974-06-17
DE2227878B2 (en) 1976-11-04
DE2227878A1 (en) 1974-03-28

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee