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GB2190909B - Treatment of waste material - Google Patents

Treatment of waste material

Info

Publication number
GB2190909B
GB2190909B GB8709985A GB8709985A GB2190909B GB 2190909 B GB2190909 B GB 2190909B GB 8709985 A GB8709985 A GB 8709985A GB 8709985 A GB8709985 A GB 8709985A GB 2190909 B GB2190909 B GB 2190909B
Authority
GB
United Kingdom
Prior art keywords
treatment
waste material
waste
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 - Fee Related
Application number
GB8709985A
Other versions
GB2190909A (en
GB8709985D0 (en
Inventor
Richard William Watson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOC Group Ltd
Original Assignee
BOC Group Ltd
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
Priority claimed from GB868610856A external-priority patent/GB8610856D0/en
Application filed by BOC Group Ltd filed Critical BOC Group Ltd
Priority to GB8709985A priority Critical patent/GB2190909B/en
Publication of GB8709985D0 publication Critical patent/GB8709985D0/en
Publication of GB2190909A publication Critical patent/GB2190909A/en
Application granted granted Critical
Publication of GB2190909B publication Critical patent/GB2190909B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
    • C01B17/507—Preparation of sulfur dioxide by reduction of sulfur compounds of iron sulfates
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)
GB8709985A 1986-05-02 1987-04-28 Treatment of waste material Expired - Fee Related GB2190909B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8709985A GB2190909B (en) 1986-05-02 1987-04-28 Treatment of waste material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868610856A GB8610856D0 (en) 1986-05-02 1986-05-02 Treatment of waste material
GB8709985A GB2190909B (en) 1986-05-02 1987-04-28 Treatment of waste material

Publications (3)

Publication Number Publication Date
GB8709985D0 GB8709985D0 (en) 1987-06-03
GB2190909A GB2190909A (en) 1987-12-02
GB2190909B true GB2190909B (en) 1990-05-02

Family

ID=26290718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8709985A Expired - Fee Related GB2190909B (en) 1986-05-02 1987-04-28 Treatment of waste material

Country Status (1)

Country Link
GB (1) GB2190909B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1017661A (en) * 1968-10-31 1966-01-19 British Titan Products Sulphur dioxide producing process
GB1033235A (en) * 1963-07-10 1966-06-22 Huels Chemische Werke Ag A process for the production of gases containing sulphur dioxide
GB1092171A (en) * 1964-01-02 1967-11-22 Bayer Ag A process for the thermal decomposition of waste sulphuric acid
US3645683A (en) * 1970-03-10 1972-02-29 Du Pont Regeneration of acid
GB1288851A (en) * 1969-02-11 1972-09-13
GB1395920A (en) * 1971-05-26 1975-05-29 Mitsui Shipbuilding Eng Apparatus for thermal decomposition of inorganic materials
GB1407161A (en) * 1972-01-14 1975-09-24 Zieren Chemiebau Gmbh Dr A Process for the production of a sulphur dioxide-containing gas
GB1430786A (en) * 1972-06-08 1976-04-07
GB1462925A (en) * 1973-06-16 1977-01-26 Basf Ag Process for the thermal decomposition of waste sulphuric acid
GB1527661A (en) * 1975-02-15 1978-10-04 Davy Powergas Gmbh Process for thermally cracking waste sulphuric acid
GB1567098A (en) * 1977-03-12 1980-05-08 Metallgesellschaft Ag Process for thermally deomposing salts which mainly comprise iron sulphate
US4256721A (en) * 1979-02-23 1981-03-17 Boc Limited Combustion method and apparatus
GB1602621A (en) * 1978-05-31 1981-11-11 Boc Ltd Thermal cracking of sulphuric acid

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1033235A (en) * 1963-07-10 1966-06-22 Huels Chemische Werke Ag A process for the production of gases containing sulphur dioxide
GB1092171A (en) * 1964-01-02 1967-11-22 Bayer Ag A process for the thermal decomposition of waste sulphuric acid
GB1017661A (en) * 1968-10-31 1966-01-19 British Titan Products Sulphur dioxide producing process
GB1288851A (en) * 1969-02-11 1972-09-13
US3645683A (en) * 1970-03-10 1972-02-29 Du Pont Regeneration of acid
GB1395920A (en) * 1971-05-26 1975-05-29 Mitsui Shipbuilding Eng Apparatus for thermal decomposition of inorganic materials
GB1407161A (en) * 1972-01-14 1975-09-24 Zieren Chemiebau Gmbh Dr A Process for the production of a sulphur dioxide-containing gas
GB1430786A (en) * 1972-06-08 1976-04-07
GB1462925A (en) * 1973-06-16 1977-01-26 Basf Ag Process for the thermal decomposition of waste sulphuric acid
GB1527661A (en) * 1975-02-15 1978-10-04 Davy Powergas Gmbh Process for thermally cracking waste sulphuric acid
GB1567098A (en) * 1977-03-12 1980-05-08 Metallgesellschaft Ag Process for thermally deomposing salts which mainly comprise iron sulphate
GB1602621A (en) * 1978-05-31 1981-11-11 Boc Ltd Thermal cracking of sulphuric acid
US4256721A (en) * 1979-02-23 1981-03-17 Boc Limited Combustion method and apparatus

Also Published As

Publication number Publication date
GB2190909A (en) 1987-12-02
GB8709985D0 (en) 1987-06-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050428