CH520624A - Process for recovering useful products from an aqueous solution, sulfuric acid pickling waste - Google Patents

Process for recovering useful products from an aqueous solution, sulfuric acid pickling waste

Info

Publication number
CH520624A
CH520624A CH1274769A CH1274769A CH520624A CH 520624 A CH520624 A CH 520624A CH 1274769 A CH1274769 A CH 1274769A CH 1274769 A CH1274769 A CH 1274769A CH 520624 A CH520624 A CH 520624A
Authority
CH
Switzerland
Prior art keywords
aqueous solution
sulfuric acid
acid pickling
useful products
pickling waste
Prior art date
Application number
CH1274769A
Other languages
French (fr)
Inventor
Warren Brophy John
Original Assignee
Prenco Mfg Company
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 Mfg Company filed Critical Prenco Mfg Company
Publication of CH520624A publication Critical patent/CH520624A/en

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
    • C01B17/48—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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
CH1274769A 1968-08-26 1969-08-22 Process for recovering useful products from an aqueous solution, sulfuric acid pickling waste CH520624A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75510168A 1968-08-26 1968-08-26

Publications (1)

Publication Number Publication Date
CH520624A true CH520624A (en) 1972-03-31

Family

ID=25037735

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1274769A CH520624A (en) 1968-08-26 1969-08-22 Process for recovering useful products from an aqueous solution, sulfuric acid pickling waste

Country Status (8)

Country Link
JP (1) JPS4918356B1 (en)
BE (1) BE737917A (en)
CH (1) CH520624A (en)
DE (1) DE1942950A1 (en)
FR (1) FR2016382A1 (en)
GB (1) GB1272407A (en)
NL (1) NL6912779A (en)
SE (1) SE358671B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262295U (en) * 1975-10-29 1977-05-07
DE2643798A1 (en) * 1976-09-29 1978-04-06 Bayer Ag METHOD FOR PROCESSING WASTE SULFURIC ACID AND IRON SULFATHEPTAHYDRATE TO FRESH ACID
DE3216420A1 (en) * 1982-05-03 1983-11-03 Bayer Ag, 5090 Leverkusen METHOD FOR CLEAVING DILUTED SULFURIC ACID
DK191386D0 (en) * 1986-04-24 1986-04-24 Koege Kemisk Vaerk emulsifier

Also Published As

Publication number Publication date
BE737917A (en) 1970-02-25
NL6912779A (en) 1970-03-02
DE1942950A1 (en) 1970-04-02
JPS4918356B1 (en) 1974-05-09
SE358671B (en) 1973-08-06
GB1272407A (en) 1972-04-26
FR2016382A1 (en) 1970-05-08

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Legal Events

Date Code Title Description
PL Patent ceased