JPS54138893A - Treating method for waste hydrochloric acid pickling solution - Google Patents

Treating method for waste hydrochloric acid pickling solution

Info

Publication number
JPS54138893A
JPS54138893A JP4692978A JP4692978A JPS54138893A JP S54138893 A JPS54138893 A JP S54138893A JP 4692978 A JP4692978 A JP 4692978A JP 4692978 A JP4692978 A JP 4692978A JP S54138893 A JPS54138893 A JP S54138893A
Authority
JP
Japan
Prior art keywords
iron oxide
soln
roaster
hydrochloric acid
waste
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
JP4692978A
Other languages
Japanese (ja)
Inventor
Toshio Shimazaki
Keisuke Arai
Masato Itai
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.)
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding Co Ltd
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 Mitsui Engineering and Shipbuilding Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Priority to JP4692978A priority Critical patent/JPS54138893A/en
Publication of JPS54138893A publication Critical patent/JPS54138893A/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 enhance the quality of iron oxide by burning a waste hydrochloric acid pickling soln. with a roaster; returning particles such as iron oxide recovered with a dust collector to the above waste soln.; and supplying the particles-added soln. to the roaster to reduce chlorine and hydrogen chloride contained in iron oxide recovered. CONSTITUTION:A waste hydrochloric acid pickling soln. in waste soln. feed tank 1 is pressurized with pump 2, sprayed into roaster 3, and burned. Iron oxide formed by the burning is stored in iron oxide hopper 5 through rotary valve 4. On the other hand, a reactant gas is passed through cyclone 6 to recover iron oxide accompanied by the gas, and the iron oxide-free gas is fed to an absorption tower. The iron oxide collected with cyclone 6 is returned to tank 1 through rotary valve 8 of cyclone hopper 7, stirred 9, and mixed to form a slurry contg. mostly unreacted Fe2O3. The slurry is supplied to roaster 3 and used as nuclei for growing iron oxide particles. Thus, high purity iron oxide of large diameter and low FeCl3 content is recovered.
JP4692978A 1978-04-20 1978-04-20 Treating method for waste hydrochloric acid pickling solution Pending JPS54138893A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4692978A JPS54138893A (en) 1978-04-20 1978-04-20 Treating method for waste hydrochloric acid pickling solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4692978A JPS54138893A (en) 1978-04-20 1978-04-20 Treating method for waste hydrochloric acid pickling solution

Publications (1)

Publication Number Publication Date
JPS54138893A true JPS54138893A (en) 1979-10-27

Family

ID=12761010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4692978A Pending JPS54138893A (en) 1978-04-20 1978-04-20 Treating method for waste hydrochloric acid pickling solution

Country Status (1)

Country Link
JP (1) JPS54138893A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6340728A (en) * 1986-08-04 1988-02-22 Chiyoda Chem Eng & Constr Co Ltd Method for recovering iron oxide from waste hydrochloric acid
US5250275A (en) * 1990-12-13 1993-10-05 Sollac Process for separating silicon compounds contained in a hydrochloric bath used for pickling
WO1996032355A1 (en) * 1995-04-13 1996-10-17 Shell Internationale Research Maatschappij B.V. Reduction of residual chloride in iron oxides
KR100486919B1 (en) * 1999-01-13 2005-05-03 진수곤 Extraction device for metal oxide utilizing waste acid and the method thereof
US7895769B2 (en) * 2003-05-26 2011-03-01 Khd Humboldt Wedag Gmbh Method and a plant for thermally drying wet ground raw meal
CN109205561A (en) * 2018-09-25 2019-01-15 李晓垚 A kind of industrial concentrating hydrochloric acid recovery method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4844639A (en) * 1971-10-07 1973-06-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4844639A (en) * 1971-10-07 1973-06-27

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6340728A (en) * 1986-08-04 1988-02-22 Chiyoda Chem Eng & Constr Co Ltd Method for recovering iron oxide from waste hydrochloric acid
US5250275A (en) * 1990-12-13 1993-10-05 Sollac Process for separating silicon compounds contained in a hydrochloric bath used for pickling
WO1996032355A1 (en) * 1995-04-13 1996-10-17 Shell Internationale Research Maatschappij B.V. Reduction of residual chloride in iron oxides
CN1082493C (en) * 1995-04-13 2002-04-10 国际壳牌研究有限公司 Reduction of residual chloride in iron oxides
KR100486919B1 (en) * 1999-01-13 2005-05-03 진수곤 Extraction device for metal oxide utilizing waste acid and the method thereof
US7895769B2 (en) * 2003-05-26 2011-03-01 Khd Humboldt Wedag Gmbh Method and a plant for thermally drying wet ground raw meal
CN109205561A (en) * 2018-09-25 2019-01-15 李晓垚 A kind of industrial concentrating hydrochloric acid recovery method

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