GB1323750A - Method of recondicioning and reusing wash water solution - Google Patents

Method of recondicioning and reusing wash water solution

Info

Publication number
GB1323750A
GB1323750A GB4494170A GB4494170A GB1323750A GB 1323750 A GB1323750 A GB 1323750A GB 4494170 A GB4494170 A GB 4494170A GB 4494170 A GB4494170 A GB 4494170A GB 1323750 A GB1323750 A GB 1323750A
Authority
GB
United Kingdom
Prior art keywords
metal
plating
wash water
wash
reconditioned
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
GB4494170A
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.)
LANCY LAB
Original Assignee
LANCY LAB
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 LANCY LAB filed Critical LANCY LAB
Publication of GB1323750A publication Critical patent/GB1323750A/en
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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • 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
    • C25D21/20—Regeneration of process solutions of rinse-solutions
    • 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
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/18—Cyanides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Removal Of Specific Substances (AREA)
  • Chemically Coating (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

1323750 Reconditioning wash water LANCY LABORATORIES Inc 21 Sept 1970 [12 Feb 1970] 44941/70 Heading C1C Water which has been used to wash surfaces which have been metal plated in a cyanide metal plating bath (e.g. electroplating bath), and which contains plating metal held in solution by a chelating compound, and chlorine, is reconditioned for use by treating it with a solution or dispersion of a salt of a metal less noble than the plating metal so that the metal of the salt replaces the plating metal in the chelate and the plating metal precipitates out. In reconditioning, chlorine and alkali metal hydroxide may be added to the wash water. The surfaces may have been plated with tin, brass, copper, cadmium, silver or nickel. Salts (e.g. chlorides) of calcium, lithium, barium, aluminium and magnesium may be used. In one embodiment the wash waters from a group of metal plating lines using different plating metals may be combined and reconditioned for use in any of the lines.
GB4494170A 1970-02-12 1970-09-21 Method of recondicioning and reusing wash water solution Expired GB1323750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1100470A 1970-02-12 1970-02-12

Publications (1)

Publication Number Publication Date
GB1323750A true GB1323750A (en) 1973-07-18

Family

ID=21748443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4494170A Expired GB1323750A (en) 1970-02-12 1970-09-21 Method of recondicioning and reusing wash water solution

Country Status (5)

Country Link
US (1) US3682701A (en)
JP (1) JPS5015733B1 (en)
BR (1) BR7100945D0 (en)
CA (1) CA929839A (en)
GB (1) GB1323750A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054371A1 (en) * 1980-12-12 1982-06-23 Interox Chemicals Limited Process for detoxification

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2356963C3 (en) * 1973-11-15 1979-04-05 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Process for filing the heavy metal ion complexes of polycarboxylates
JPS5460919U (en) * 1977-10-05 1979-04-27
JPS6153445U (en) * 1984-09-13 1986-04-10

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054371A1 (en) * 1980-12-12 1982-06-23 Interox Chemicals Limited Process for detoxification

Also Published As

Publication number Publication date
US3682701A (en) 1972-08-08
BR7100945D0 (en) 1973-04-19
CA929839A (en) 1973-07-10
DE2049369A1 (en) 1971-09-02
JPS5015733B1 (en) 1975-06-07
DE2049369B2 (en) 1975-05-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee