FR2132449B1 - - Google Patents

Info

Publication number
FR2132449B1
FR2132449B1 FR7211925A FR7211925A FR2132449B1 FR 2132449 B1 FR2132449 B1 FR 2132449B1 FR 7211925 A FR7211925 A FR 7211925A FR 7211925 A FR7211925 A FR 7211925A FR 2132449 B1 FR2132449 B1 FR 2132449B1
Authority
FR
France
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
FR7211925A
Other languages
French (fr)
Other versions
FR2132449A1 (enExample
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.)
Fuji Kuromu Sha KK
Original Assignee
Fuji Kuromu Sha 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
Priority claimed from JP46020308A external-priority patent/JPS5119417B1/ja
Priority claimed from JP46061782A external-priority patent/JPS5126892B2/ja
Priority claimed from JP6178171A external-priority patent/JPS5119813B2/ja
Application filed by Fuji Kuromu Sha KK filed Critical Fuji Kuromu Sha KK
Publication of FR2132449A1 publication Critical patent/FR2132449A1/fr
Application granted granted Critical
Publication of FR2132449B1 publication Critical patent/FR2132449B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/683—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of complex-forming compounds
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/16—Regeneration of process solutions
    • C25D21/18—Regeneration of process solutions of electrolytes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/22—Chromium or chromium compounds, e.g. chromates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Chemical Treatment Of Metals (AREA)
FR7211925A 1971-04-05 1972-04-05 Expired FR2132449B1 (enExample)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP46020308A JPS5119417B1 (enExample) 1971-04-05 1971-04-05
JP46061782A JPS5126892B2 (enExample) 1971-08-14 1971-08-14
JP6178171A JPS5119813B2 (enExample) 1971-08-14 1971-08-14

Publications (2)

Publication Number Publication Date
FR2132449A1 FR2132449A1 (enExample) 1972-11-17
FR2132449B1 true FR2132449B1 (enExample) 1974-08-02

Family

ID=27282981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7211925A Expired FR2132449B1 (enExample) 1971-04-05 1972-04-05

Country Status (3)

Country Link
DE (1) DE2216393C3 (enExample)
FR (1) FR2132449B1 (enExample)
GB (1) GB1388204A (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243501A (en) * 1979-03-30 1981-01-06 Michael Ladney, Jr. Process and apparatus for the regeneration of chromic acid baths
DE4109434C2 (de) * 1991-03-22 1993-12-23 Ludwig Mechler Gmbh Verfahren zum Aufarbeiten von chromathaltigen Abwässern und/oder Prozeßlösungen
CN112110487B (zh) * 2020-09-22 2022-07-08 攀钢集团研究院有限公司 一种易溶氢氧化铬的制备方法
CN115976535B (zh) * 2022-12-23 2023-08-18 中国科学院青海盐湖研究所 酸性体系中铬铁电化学氧化制备三价铬盐的方法及装置
CN115928108B (zh) * 2022-12-23 2023-08-01 中国科学院青海盐湖研究所 电化学氧化铬铁直接制备三价铬化合物的方法
CN119191524A (zh) * 2024-11-15 2024-12-27 重庆广仁能源装备股份有限公司 一种含铬废液处理工艺

Also Published As

Publication number Publication date
FR2132449A1 (enExample) 1972-11-17
DE2216393B2 (de) 1973-11-29
DE2216393A1 (de) 1972-10-26
DE2216393C3 (de) 1974-07-04
GB1388204A (en) 1975-03-26

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Legal Events

Date Code Title Description
ST Notification of lapse