FR1515350A - Process for treating residual pickling liquor - Google Patents

Process for treating residual pickling liquor

Info

Publication number
FR1515350A
FR1515350A FR97523A FR97523A FR1515350A FR 1515350 A FR1515350 A FR 1515350A FR 97523 A FR97523 A FR 97523A FR 97523 A FR97523 A FR 97523A FR 1515350 A FR1515350 A FR 1515350A
Authority
FR
France
Prior art keywords
pickling liquor
treating residual
residual pickling
treating
liquor
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
FR97523A
Other languages
French (fr)
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.)
Prenco Manufacturing Co
Original Assignee
Prenco Manufacturing Co
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 Prenco Manufacturing Co filed Critical Prenco Manufacturing Co
Application granted granted Critical
Publication of FR1515350A publication Critical patent/FR1515350A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors
    • 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
    • C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/06—Ferric oxide (Fe2O3)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
FR97523A 1966-03-28 1967-03-06 Process for treating residual pickling liquor Expired FR1515350A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53800766A 1966-03-28 1966-03-28

Publications (1)

Publication Number Publication Date
FR1515350A true FR1515350A (en) 1968-03-01

Family

ID=24145040

Family Applications (1)

Application Number Title Priority Date Filing Date
FR97523A Expired FR1515350A (en) 1966-03-28 1967-03-06 Process for treating residual pickling liquor

Country Status (7)

Country Link
BE (1) BE695091A (en)
CH (1) CH471905A (en)
DE (1) DE1621637A1 (en)
FR (1) FR1515350A (en)
GB (1) GB1120072A (en)
NL (2) NL6704421A (en)
SE (1) SE329319B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428207A1 (en) * 1978-06-07 1980-01-04 Gueugnon Forges Processing waste nitric-hydrofluoric acid pickling soln. - to give hydrofluoric acid, pure metal oxide(s) and innocuous off-gas
EP0071837A1 (en) * 1981-08-04 1983-02-16 Bayer Ag Process for decomposing diluted sulfuric acid

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3216420A1 (en) * 1982-05-03 1983-11-03 Bayer Ag, 5090 Leverkusen METHOD FOR CLEAVING DILUTED SULFURIC ACID
CH677933A5 (en) * 1989-04-07 1991-07-15 Escher Wyss Ag
AT403665B (en) * 1996-10-30 1998-04-27 Andritz Patentverwaltung METHOD AND SYSTEM FOR THE SEPARATION OF FINE OXIDE PARTICLES
CN106943847B (en) * 2017-04-20 2023-08-15 成都瑞柯林工程技术有限公司 Device for recovering fine iron oxide powder from pickling waste acid regeneration system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428207A1 (en) * 1978-06-07 1980-01-04 Gueugnon Forges Processing waste nitric-hydrofluoric acid pickling soln. - to give hydrofluoric acid, pure metal oxide(s) and innocuous off-gas
EP0071837A1 (en) * 1981-08-04 1983-02-16 Bayer Ag Process for decomposing diluted sulfuric acid

Also Published As

Publication number Publication date
SE329319B (en) 1970-10-05
BE695091A (en) 1967-09-06
NL6704421A (en) 1967-09-29
GB1120072A (en) 1968-07-17
CH471905A (en) 1969-04-30
DE1621637A1 (en) 1971-06-03
NL134070C (en) 1900-01-01

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