GB1446603A - Method for the recycle treatment of waste water from chromium plating - Google Patents

Method for the recycle treatment of waste water from chromium plating

Info

Publication number
GB1446603A
GB1446603A GB4385373A GB4385373A GB1446603A GB 1446603 A GB1446603 A GB 1446603A GB 4385373 A GB4385373 A GB 4385373A GB 4385373 A GB4385373 A GB 4385373A GB 1446603 A GB1446603 A GB 1446603A
Authority
GB
United Kingdom
Prior art keywords
tank
exchange resins
filtrate
chromium plating
ions
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
GB4385373A
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.)
KYB Corp
Original Assignee
Kayaba Industry 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
Priority claimed from JP9553672A external-priority patent/JPS4952773A/ja
Priority claimed from JP9553772A external-priority patent/JPS4952444A/ja
Priority claimed from JP9553572A external-priority patent/JPS4952772A/ja
Application filed by Kayaba Industry Co Ltd filed Critical Kayaba Industry Co Ltd
Publication of GB1446603A publication Critical patent/GB1446603A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C25D21/22—Regeneration of process solutions by ion-exchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/04—Processes using organic exchangers
    • B01J39/05—Processes using organic exchangers in the strongly acidic form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • B01J49/05—Regeneration or reactivation of ion-exchangers; Apparatus therefor of fixed beds
    • B01J49/08—Regeneration or reactivation of ion-exchangers; Apparatus therefor of fixed beds containing cationic and anionic exchangers in separate beds
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • 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

Abstract

1446603 Recycling chromium plating waste water KAYABAKOGYO KK 18 Sept 1973 [22 Sept 1972 (3)] 43853/73 Heading C7B Chromium plating waste water 16 e.g. from primary washing tank 12 is recycle treated by rendering it neutral (pH 7-8) in neutralization tank 18 with filter 22 by adding NaOH or Ca(OH)2 from tank 20 to precipitate metal ions (e.g. Fe, Cu) contained therein as hydroxides; filtering and passing the filtrate (without adjusting its pH) e.g. from tank 24 through cation and anion exchange resins to remove Na or Ca ions and chromic acid ions respectively, e.g. in pre-treatment towers 26a, b and adsorption towers 30a, b; recycling the purified water so obtained e.g. stored in recovery tank 32 to serve as washing water, e.g. through tank 34 and secondary washing tank 14, in the chromium plating process; and treating the effluents produced during regeneration of the anion exchange resins, e.g. desorbing using NaOH solution from tank 36 to obtain concentrated Na 2 CrO 4 solution in primary recovery tank 38 and adsorbing the Na ions of the solution by cation exchange resins e.g. in purification tower 40, to recover chromic acid solution e.g. in (secondary) recovery tank 42 for use in the plating tank 10. The cation exchange resins may be regenerated with H s SO 4 or HCl from tank 44. The filtrate tank may be divided into two (24a, b) Fig. 2 (not shown) when use is made of a supplementary cylinder (50) packed with strongly basic anion exchange resins to adsorb (remove) chromic acid, the effluent being re-used as washing water through tank 34 (via tank 24b), and the filtrate being allowed to pass through towers 26a, b and 30a, b only when the resins of cylinder 50 are being regenerated with NaOH; or the filtrate tank may be divided into three when use is made of two supplementary cylinders (50, 52) in Fig. 5 (not shown), packed respectively with strongly basic anion and strongly audic cation exchange resins.
GB4385373A 1972-09-22 1973-09-18 Method for the recycle treatment of waste water from chromium plating Expired GB1446603A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9553672A JPS4952773A (en) 1972-09-22 1972-09-22
JP9553772A JPS4952444A (en) 1972-09-22 1972-09-22
JP9553572A JPS4952772A (en) 1972-09-22 1972-09-22

Publications (1)

Publication Number Publication Date
GB1446603A true GB1446603A (en) 1976-08-18

Family

ID=27307837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4385373A Expired GB1446603A (en) 1972-09-22 1973-09-18 Method for the recycle treatment of waste water from chromium plating

Country Status (2)

Country Link
DE (1) DE2347690A1 (en)
GB (1) GB1446603A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007116247A2 (en) * 2006-02-14 2007-10-18 Howard, Darryl An effluent treatment process
WO2010037532A1 (en) * 2008-10-01 2010-04-08 Voestalpine Stahl Gmbh Method for the electrolytic deposition of chromium and chromium alloys
CN112121873A (en) * 2020-09-21 2020-12-25 昆山三一环保科技有限公司 Regeneration process of cobalt-removing resin

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007116247A2 (en) * 2006-02-14 2007-10-18 Howard, Darryl An effluent treatment process
WO2007116247A3 (en) * 2006-02-14 2008-02-28 Facilitating Innovative Res En An effluent treatment process
WO2010037532A1 (en) * 2008-10-01 2010-04-08 Voestalpine Stahl Gmbh Method for the electrolytic deposition of chromium and chromium alloys
CN112121873A (en) * 2020-09-21 2020-12-25 昆山三一环保科技有限公司 Regeneration process of cobalt-removing resin

Also Published As

Publication number Publication date
DE2347690A1 (en) 1974-03-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee