GB865711A - Process for the removal of organic impurities in a contact sulphuric acid process - Google Patents

Process for the removal of organic impurities in a contact sulphuric acid process

Info

Publication number
GB865711A
GB865711A GB15831/57A GB1583157A GB865711A GB 865711 A GB865711 A GB 865711A GB 15831/57 A GB15831/57 A GB 15831/57A GB 1583157 A GB1583157 A GB 1583157A GB 865711 A GB865711 A GB 865711A
Authority
GB
United Kingdom
Prior art keywords
sulphuric acid
organic impurities
acid
sulphur dioxide
removal
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
GB15831/57A
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.)
Chemiebau Dr A Zieren GmbH and KG
Original Assignee
Chemiebau Dr A Zieren GmbH and KG
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 by Chemiebau Dr A Zieren GmbH and KG filed Critical Chemiebau Dr A Zieren GmbH and KG
Publication of GB865711A publication Critical patent/GB865711A/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
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C01B17/905—Removal of organic impurities

Abstract

In the contact process for the production of sulphuric acid from sulphur dioxide containing organic impurities, the washed sulphur dioxide is dried with 70-85% sulphuric acid and then with ca. 98% sulphuric acid, the first drying acid being blown with air after use and then treated with hydrogen peroxide, to remove absorbed sulphur dioxide and organic impurities. The resulting acid may be used for absorption of the sulphur trioxide produced by catalyst contact. The sulphur dioxide-containing gas produced by blowing may be recycled to the process. The blown acid may be treated in batches with hydrogen peroxide. An example is given.
GB15831/57A 1956-05-23 1957-05-17 Process for the removal of organic impurities in a contact sulphuric acid process Expired GB865711A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE865711X 1956-05-23

Publications (1)

Publication Number Publication Date
GB865711A true GB865711A (en) 1961-04-19

Family

ID=6801887

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15831/57A Expired GB865711A (en) 1956-05-23 1957-05-17 Process for the removal of organic impurities in a contact sulphuric acid process

Country Status (1)

Country Link
GB (1) GB865711A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427303A (en) * 1963-07-30 1969-02-11 Organico Soc Process for the preparation of cycloalkanone oximes and lactams in the presence of strong acids
DE2404613A1 (en) * 1973-04-02 1974-10-10 Air Prod & Chem METHOD OF PURIFYING USED SULFUR ACID
EP0121687A1 (en) * 1983-03-04 1984-10-17 HMC Patents Holding Co., Inc. Single step purification of sulfur dioxide gas prepared by the combustion of sulfur containing compounds
FR2687656A1 (en) * 1992-02-20 1993-08-27 Inst Francais Du Petrole Process for the removal of organic matter contained in an impure sulphuric acid. Use of the resulting acid and treatment of the effluent gas formed

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427303A (en) * 1963-07-30 1969-02-11 Organico Soc Process for the preparation of cycloalkanone oximes and lactams in the presence of strong acids
DE2404613A1 (en) * 1973-04-02 1974-10-10 Air Prod & Chem METHOD OF PURIFYING USED SULFUR ACID
EP0121687A1 (en) * 1983-03-04 1984-10-17 HMC Patents Holding Co., Inc. Single step purification of sulfur dioxide gas prepared by the combustion of sulfur containing compounds
FR2687656A1 (en) * 1992-02-20 1993-08-27 Inst Francais Du Petrole Process for the removal of organic matter contained in an impure sulphuric acid. Use of the resulting acid and treatment of the effluent gas formed

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