JPS56100105A - Recovering and treating method for waste hydrochloric acid - Google Patents

Recovering and treating method for waste hydrochloric acid

Info

Publication number
JPS56100105A
JPS56100105A JP400480A JP400480A JPS56100105A JP S56100105 A JPS56100105 A JP S56100105A JP 400480 A JP400480 A JP 400480A JP 400480 A JP400480 A JP 400480A JP S56100105 A JPS56100105 A JP S56100105A
Authority
JP
Japan
Prior art keywords
hydrochloric acid
soln
fed
iron oxide
component
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.)
Pending
Application number
JP400480A
Other languages
Japanese (ja)
Inventor
Yasuo Morimoto
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.)
Daido Kagaku Sochi Kk
Original Assignee
Daido Kagaku Sochi Kk
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 Daido Kagaku Sochi Kk filed Critical Daido Kagaku Sochi Kk
Priority to JP400480A priority Critical patent/JPS56100105A/en
Publication of JPS56100105A publication Critical patent/JPS56100105A/en
Pending 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Compounds Of Iron (AREA)

Abstract

PURPOSE:To regenerate a waste hydrochloric acid soln. contg. a dissolved iron component and recover hydrochloric acid comparable to fresh acid by blowing O2 into the soln., separating free hydrochloric acid, and hydrolyzing the mother liquor to remove the dissolved iron component as insoluble iron oxide. CONSTITUTION:A waste hydrochloric acid soln. contg. a dissolved iron component is adjusted so as to make the concn. of free hydrochloric acid >= about 1.3mol/ mol of the component. The adjusted soln. is fed to oxidation tube 3, where Fe<2+> is oxidized to Fe<3+> by blowing O2 from pipe 5 while keeping tube 3 at high temp. and pressure such as about 70-130 deg.C and about 2-12atm. This liq. reaction product is flashed into flash drum 11 to ordinary temp. to separate free hydrochloric acid, which is then stored in storage tank 16. The mother liquor is fed to 20 and heated to 130-250 deg.C in the presence of seed crystals to thermally decompose FeCl3. A mixed flow of the resulting iron oxide slurry and HCl gas is condensed by cooling and fed to filter 31 to separate the iron oxide. Thus, clear regenerated hydrochloric acid is obtd.
JP400480A 1980-01-16 1980-01-16 Recovering and treating method for waste hydrochloric acid Pending JPS56100105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP400480A JPS56100105A (en) 1980-01-16 1980-01-16 Recovering and treating method for waste hydrochloric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP400480A JPS56100105A (en) 1980-01-16 1980-01-16 Recovering and treating method for waste hydrochloric acid

Publications (1)

Publication Number Publication Date
JPS56100105A true JPS56100105A (en) 1981-08-11

Family

ID=11572835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP400480A Pending JPS56100105A (en) 1980-01-16 1980-01-16 Recovering and treating method for waste hydrochloric acid

Country Status (1)

Country Link
JP (1) JPS56100105A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003521A1 (en) * 1984-12-03 1986-06-19 L'air Liquide - Societe Anonyme Pour L'etude Et L' Method and plant for regenerating a hydrochloric solution
JP2000264609A (en) * 1999-03-22 2000-09-26 Andritz Patentverwaltungs Gmbh Process for recovering acid from acid solution of metal
JP2004137118A (en) * 2002-10-18 2004-05-13 Galva Kogyo Mihara Kojo:Kk Method for recovering hydrochloric acid from iron hydrochloric acid treatment waste liquid
JP2010024136A (en) * 2008-06-19 2010-02-04 Daiichi Engineering Co Ltd Method of treating hydrochloric acid treated iron waste liquid containing ferrous chloride
CN103071648A (en) * 2013-01-04 2013-05-01 中冶南方工程技术有限公司 Washing method for acid gun in acid regeneration system with atomization roasting method
JP2013095623A (en) * 2011-10-28 2013-05-20 Osaka Gas Co Ltd Method and apparatus for treating waste hydrochloric acid
CN104150667A (en) * 2014-07-18 2014-11-19 安徽千和新材料科技发展有限公司 Resourceful treatment method of waste acid liquid generated by washing surfaces of hot rolled plates
CN104195583A (en) * 2014-09-02 2014-12-10 上海化工研究院 Method and device for removing solids from cold-drawn cold-rolled steel tube pickling solution
CN108950581A (en) * 2018-07-16 2018-12-07 中国科学院过程工程研究所 Stainless steel mixing acid-washing waste acid reproduction method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003521A1 (en) * 1984-12-03 1986-06-19 L'air Liquide - Societe Anonyme Pour L'etude Et L' Method and plant for regenerating a hydrochloric solution
FR2586260A2 (en) * 1984-12-03 1987-02-20 Air Liquide PROCESS FOR IMPLEMENTING OXIDIZING GAS TO ACHIEVE THE REGENERATION OF HYDROCHLORIC SOLUTIONS USED FOR PICKLING
JP2000264609A (en) * 1999-03-22 2000-09-26 Andritz Patentverwaltungs Gmbh Process for recovering acid from acid solution of metal
JP2004137118A (en) * 2002-10-18 2004-05-13 Galva Kogyo Mihara Kojo:Kk Method for recovering hydrochloric acid from iron hydrochloric acid treatment waste liquid
JP2010024136A (en) * 2008-06-19 2010-02-04 Daiichi Engineering Co Ltd Method of treating hydrochloric acid treated iron waste liquid containing ferrous chloride
JP2013095623A (en) * 2011-10-28 2013-05-20 Osaka Gas Co Ltd Method and apparatus for treating waste hydrochloric acid
CN103071648A (en) * 2013-01-04 2013-05-01 中冶南方工程技术有限公司 Washing method for acid gun in acid regeneration system with atomization roasting method
CN104150667A (en) * 2014-07-18 2014-11-19 安徽千和新材料科技发展有限公司 Resourceful treatment method of waste acid liquid generated by washing surfaces of hot rolled plates
CN104195583A (en) * 2014-09-02 2014-12-10 上海化工研究院 Method and device for removing solids from cold-drawn cold-rolled steel tube pickling solution
CN108950581A (en) * 2018-07-16 2018-12-07 中国科学院过程工程研究所 Stainless steel mixing acid-washing waste acid reproduction method

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