NL7809474A - METHOD FOR CONCENTRATING Aqueous SULFUR ACID SOLUTIONS. - Google Patents

METHOD FOR CONCENTRATING Aqueous SULFUR ACID SOLUTIONS.

Info

Publication number
NL7809474A
NL7809474A NL7809474A NL7809474A NL7809474A NL 7809474 A NL7809474 A NL 7809474A NL 7809474 A NL7809474 A NL 7809474A NL 7809474 A NL7809474 A NL 7809474A NL 7809474 A NL7809474 A NL 7809474A
Authority
NL
Netherlands
Prior art keywords
acid solutions
sulfur acid
aqueous sulfur
concentrating aqueous
concentrating
Prior art date
Application number
NL7809474A
Other languages
Dutch (nl)
Original Assignee
Montedison Spa
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 Montedison Spa filed Critical Montedison Spa
Publication of NL7809474A publication Critical patent/NL7809474A/en

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
    • C01B17/88—Concentration of sulfuric acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
NL7809474A 1977-09-21 1978-09-18 METHOD FOR CONCENTRATING Aqueous SULFUR ACID SOLUTIONS. NL7809474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2779777A IT1086096B (en) 1977-09-21 1977-09-21 PROCEDURE FOR THE CONCENTRATION OF AQUEOUS SOLUTIONS OF SULFURIC ACID

Publications (1)

Publication Number Publication Date
NL7809474A true NL7809474A (en) 1979-03-23

Family

ID=11222349

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7809474A NL7809474A (en) 1977-09-21 1978-09-18 METHOD FOR CONCENTRATING Aqueous SULFUR ACID SOLUTIONS.

Country Status (8)

Country Link
JP (1) JPS5461094A (en)
CH (1) CH638465A5 (en)
DE (1) DE2807380A1 (en)
FR (1) FR2403973A1 (en)
GB (1) GB2004469B (en)
IT (1) IT1086096B (en)
NL (1) NL7809474A (en)
RO (1) RO76235A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH672633A5 (en) * 1987-11-23 1989-12-15 Escher Wyss Ag
DE4403840C2 (en) * 1994-02-08 1997-12-04 Bayer Ag Process for the recovery of sulfuric acid from used sulfates containing metal sulfate
DE4403841C2 (en) * 1994-02-08 1997-12-04 Bayer Ag Process for evaporating used sulfuric acid
AU709404B2 (en) * 1995-07-24 1999-08-26 Kerr-Mcgee Pigments Gmbh & Co. Kg Process for the recovery of sulphuric acid from spent acids containing metal sulphates
JP4737670B2 (en) * 2005-03-30 2011-08-03 株式会社ササクラ Method and apparatus for treating wastewater containing calcium and sulfuric acid
WO2008003297A2 (en) * 2006-07-03 2008-01-10 Lailach Guenter Method and system for concentrating metal sulfate-containing sulfuric acid
CN110104617A (en) * 2019-04-24 2019-08-09 成都先进金属材料产业技术研究院有限公司 Utilize the method for alum concentration titanium white waste acid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078088A (en) * 1935-11-22 1937-04-20 Mantius Process of recovering sulphuric acid from sulphuric acid solutions of sulphates
FR1076258A (en) * 1952-03-25 1954-10-25 C D Patents Ltd Process for the recovery of sulfuric acid and inorganic sulphates from dilute waste liquors
DE957473C (en) * 1953-06-02 1957-02-07 Bayer Ag Process for the crystallization of substances, which can crystallize with different amounts of water of crystallization, in a form which is free of water of crystallization or has a low concentration of water of crystallization
DE1131193B (en) * 1960-10-14 1962-06-14 Bayer Ag Process for concentrating and desalting dilute, salty sulfuric acid
JPS5314429B2 (en) * 1973-05-11 1978-05-17
FR2328658A1 (en) * 1975-10-20 1977-05-20 Pechiney Aluminium IMPROVEMENTS IN THE PURIFICATION OF DILUTED SULFURIC SOLUTIONS

Also Published As

Publication number Publication date
DE2807380C2 (en) 1990-08-09
JPS6335320B2 (en) 1988-07-14
FR2403973B1 (en) 1983-01-28
RO76235A (en) 1981-04-30
GB2004469A (en) 1979-04-04
DE2807380A1 (en) 1979-03-29
GB2004469B (en) 1982-07-14
JPS5461094A (en) 1979-05-17
CH638465A5 (en) 1983-09-30
IT1086096B (en) 1985-05-28
FR2403973A1 (en) 1979-04-20

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
CNR Transfer of rights (patent application after its laying openfor public ins pection)

Free format text: OLIN CORPORATION TE STAMFORD

AK Correction of former applications already laid open

Free format text: IN PAT.BUL.8/86,PAGE 841:THE NUMBER 7809474 SHOULD BE MODIFIED INTO 7809473

BV The patent application has lapsed