GB1467795A - Purification of sulphuric acid - Google Patents

Purification of sulphuric acid

Info

Publication number
GB1467795A
GB1467795A GB307676A GB307676A GB1467795A GB 1467795 A GB1467795 A GB 1467795A GB 307676 A GB307676 A GB 307676A GB 307676 A GB307676 A GB 307676A GB 1467795 A GB1467795 A GB 1467795A
Authority
GB
United Kingdom
Prior art keywords
acid
sulphuric acid
contaminated
jan
weight
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
GB307676A
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie AG
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 Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of GB1467795A publication Critical patent/GB1467795A/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

Abstract

1467795 Purifying sulphuric acid WACKERCHEMIE GmbH 27 Jan 1976 [29 Jan 1975] 03076/76 Heading C1A Sulphuric acid contaminated by methyl sulphuric acid is purified by diluting the contaminated acid with 10-25% by weight with liquid water based on the content of H 2 SO 4 so that diluted acid has a strength not less than 60% weight, subsequently passing steam at 95-150‹ C. through the acid such that the temperature thereof rises to 170-180‹ C. and distilling of the methanol so formed. The amount of water added is advantageously 15-20%. The contaminated acid is preferably at 90-110‹ C. immediately prior to the introduction of steam. The process is preferably carried out at atmospheric pressure, but higher or lower pressures may be used. The process may be continuous, semicontinuous or batch.
GB307676A 1975-01-29 1976-01-27 Purification of sulphuric acid Expired GB1467795A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752503610 DE2503610C3 (en) 1975-01-29 1975-01-29 Process for the purification of sulfuric acid contaminated with methylsulfuric acid

Publications (1)

Publication Number Publication Date
GB1467795A true GB1467795A (en) 1977-03-23

Family

ID=5937587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB307676A Expired GB1467795A (en) 1975-01-29 1976-01-27 Purification of sulphuric acid

Country Status (7)

Country Link
JP (1) JPS5187492A (en)
BE (1) BE838033A (en)
DE (1) DE2503610C3 (en)
FR (1) FR2299267A1 (en)
GB (1) GB1467795A (en)
IT (1) IT1053543B (en)
NL (1) NL7600496A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7842272B2 (en) 2005-10-13 2010-11-30 Wacker Chemie Ag Process for the regeneration of sulfuric acid

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151691A1 (en) * 1981-12-29 1983-07-07 Hoechst Ag, 6230 Frankfurt METHOD FOR PURIFYING WASTE SULFURIC ACID
FR2537967A1 (en) * 1982-12-17 1984-06-22 Ugine Kuhlmann PROCESS FOR THE PURIFICATION OF SULFURIC ACID BY-PRODUCT OF THE SYNTHESIS OF BORON TRIFLUORIDE
DE19600810A1 (en) 1996-01-11 1997-07-17 Wacker Chemie Gmbh Process for cleaning sulfuric acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7842272B2 (en) 2005-10-13 2010-11-30 Wacker Chemie Ag Process for the regeneration of sulfuric acid

Also Published As

Publication number Publication date
JPS5187492A (en) 1976-07-31
DE2503610B2 (en) 1978-06-22
BE838033A (en) 1976-07-29
DE2503610C3 (en) 1982-09-16
FR2299267B1 (en) 1978-11-10
DE2503610A1 (en) 1976-08-05
NL7600496A (en) 1976-08-02
IT1053543B (en) 1981-10-10
FR2299267A1 (en) 1976-08-27
JPS5311520B2 (en) 1978-04-21

Similar Documents

Publication Publication Date Title
GB1445648A (en) Method of preparation of bromine from hydrobromic acid solutions
GB1127097A (en) Process for the purification of organopolysiloxane oils
KR840000472A (en) Production of Cyclohexylamine
GB1467795A (en) Purification of sulphuric acid
BR8402801A (en) PROCESS OF PURIFICATION OF A WATER-ALCOHOL MIXTURE IN C1-C2 FROM AN INDUSTRIAL MANUFACTURE OF ALCOHOL IN C1-C2
KR830006324A (en) Method for preparing rutin deca or nona (hydrogen sulfate) sodium salt
GB1438601A (en) Method for the purification of sulphuric acid containing mercury
GB1384065A (en) Process for the purification of organic isocyanates
GB1468647A (en) Process for the preparation of 2-nitro-4,6-dichloro-5-methyl phenol
ES375942A1 (en) Continuous process for the preparation of maleic anhydride from an aqueous solution of maleic acid by distillation
GB1129637A (en) Process for separating chlorine from phosgene
JO1211B1 (en) method of purifying uranium containing acidic solution
GB1479900A (en) Process for the separation and recovery of ammonia and acid gases
JPS5781436A (en) Purification of ethyl acetate
JPS5579335A (en) Decolorization of dihydroxydiphenylmethane
KR830006172A (en) Method for preparing 2,6-dichloro-4-nitroaniline
KR830004206A (en) Method for Purifying Isoleucine
ES296157A1 (en) Process for hydrating propylene
KR830006331A (en) Nitrocellulose Purification Method
JPS5473727A (en) Production of acrylamide
KR900701745A (en) Method for preparing 2-chloro-4-toluenesulfonic acid
GB1456101A (en) Process for dehydrating aqueous solutions of maleic acid to maleic anhydride
KR840009285A (en) Method for preparing branched alkanophosphate
JPS5236622A (en) Process for preparation of bromoacetic acid
FR2224443B3 (en)

Legal Events

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