EP0022839A4 - RECOVERY OF CYANIDES FROM CLEANING SOLUTIONS OF CYANHIDRIC METHODS FOR GALVANIC METAL DEPOSITION. - Google Patents

RECOVERY OF CYANIDES FROM CLEANING SOLUTIONS OF CYANHIDRIC METHODS FOR GALVANIC METAL DEPOSITION.

Info

Publication number
EP0022839A4
EP0022839A4 EP19800900266 EP80900266A EP0022839A4 EP 0022839 A4 EP0022839 A4 EP 0022839A4 EP 19800900266 EP19800900266 EP 19800900266 EP 80900266 A EP80900266 A EP 80900266A EP 0022839 A4 EP0022839 A4 EP 0022839A4
Authority
EP
European Patent Office
Prior art keywords
cyanides
recuperation
rinsing
metals
electrodeposition
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.)
Withdrawn
Application number
EP19800900266
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0022839A1 (en
Inventor
Michael Franz-Xaver Peuser
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0022839A1 publication Critical patent/EP0022839A1/en
Publication of EP0022839A4 publication Critical patent/EP0022839A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • the metallic cyanides precipitated by means of the proposed process that is theRECUPERATION OF CYA NIDES FROM RINSING SOLUTIONS OF CYANIDRIC PROCESSES FOR ELEC ⁇ TRODEPOSITION OF METALS, maybe directly re-used in the re ⁇ spective dips after their rinsing (the insoluble precipi ⁇ tate) in the filters or by deposition with water, until the rinsing water attains a density of 1.000 or 0° Be, thus re ⁇ leasing the precipitated cyanide fromthe other soluble ⁇ -x ⁇ p ⁇ nent
  • the same process presented may also be used for the precipi
  • the value of the reclaimed material is therefore 2.1 times the value of the metallic salt used for the recuperation.
  • the physical values are constant in ⁇ ternationally; -the values in money may show up in relation to the cost of the chemical products per country.
  • the copper, the zinc, the cadmium, the silver, the gold and cyanides are imported materials, thus justifying avoidance of the loss of these products in the rinsing solutions in the electroplating industry.
  • the electroplating industry is up against problems con ⁇ cerning the compliance with the standards of public organs, which are responsible for the preservation and protection of the ecology. They demand an efficient and complete treat ment of the industrial effluent waste products.
  • the precipitation formulation may be generalized consid ⁇ ering as -M- the symbol of a metal, the atomic weight of which is between 60 and 200, thus allowing the objective of the recuperation of the cyanides and the respective metals in the rinsing solutions.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Electrochemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Hydrology & Water Resources (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Removal Of Specific Substances (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
EP19800900266 1979-01-29 1980-08-15 RECOVERY OF CYANIDES FROM CLEANING SOLUTIONS OF CYANHIDRIC METHODS FOR GALVANIC METAL DEPOSITION. Withdrawn EP0022839A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR7900702 1979-01-29
BR7900702A BR7900702A (pt) 1979-01-29 1979-01-29 Recuperacao de cianetos das aguas de lavagens dos processos cianidricos de eletrodeposicao de metais

Publications (2)

Publication Number Publication Date
EP0022839A1 EP0022839A1 (en) 1981-01-28
EP0022839A4 true EP0022839A4 (en) 1981-06-26

Family

ID=4014093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800900266 Withdrawn EP0022839A4 (en) 1979-01-29 1980-08-15 RECOVERY OF CYANIDES FROM CLEANING SOLUTIONS OF CYANHIDRIC METHODS FOR GALVANIC METAL DEPOSITION.

Country Status (28)

Country Link
EP (1) EP0022839A4 (ja)
JP (1) JPS56500136A (ja)
AR (1) AR231428A1 (ja)
AU (1) AU537457B2 (ja)
BE (1) BE881417A (ja)
BR (1) BR7900702A (ja)
CA (1) CA1160018A (ja)
CH (1) CH645077A5 (ja)
CS (1) CS221253B2 (ja)
DD (1) DD148795A5 (ja)
ES (1) ES8100815A1 (ja)
FI (1) FI67356C (ja)
GB (1) GB2055900B (ja)
GR (1) GR67263B (ja)
HU (1) HU182603B (ja)
IE (1) IE49370B1 (ja)
IL (1) IL59207A (ja)
IT (1) IT1188898B (ja)
MX (1) MX153331A (ja)
NL (1) NL8020027A (ja)
NO (1) NO153217C (ja)
PL (1) PL128213B1 (ja)
PT (1) PT70738A (ja)
RO (1) RO80891A (ja)
SE (1) SE441521B (ja)
WO (1) WO1980001563A1 (ja)
YU (1) YU19780A (ja)
ZA (1) ZA80402B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT375683B (de) * 1982-06-15 1984-08-27 Wolfram Manner Verfahren zum wiedergewinnen von inhaltsstoffen aus sauren oder angesaeuerten beiz-, aetz- oder galvanoloesungen
CA2057217C (en) * 1990-12-11 1999-08-31 Bruce Edward Holbein A process for the decontamination of toxic, heavy-metal containing soils
JP6201114B2 (ja) * 2012-11-01 2017-09-27 株式会社片山化学工業研究所 シアン含有廃水の処理方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1614523A (en) * 1922-05-13 1927-01-18 American Cyanamid Co Process of producing heavy metal cyanides
US2845330A (en) * 1955-08-15 1958-07-29 Holden Artemas F Method of recovering cyanides from waste aqueous solutions containing metal cyanides
US3736239A (en) * 1971-03-18 1973-05-29 Us Interior Neutralization of metal containing wastes
SU528265A1 (ru) * 1972-09-26 1976-09-15 Государственный научно-исследовательский и проектный институт по обогащению руд цветных металлов "Казмеханобр" Способ очистки сточных вод от меди и цианидов
JPS50656A (ja) * 1973-05-08 1975-01-07

Also Published As

Publication number Publication date
GR67263B (ja) 1981-06-26
FI67356C (fi) 1985-03-11
IT1188898B (it) 1988-01-28
SE8006649L (sv) 1980-09-23
FI800250A (fi) 1980-07-30
PL128213B1 (en) 1984-01-31
PL221661A1 (ja) 1980-10-20
IT8047738A0 (it) 1980-01-29
PT70738A (en) 1980-02-01
CA1160018A (en) 1984-01-10
GB2055900A (en) 1981-03-11
AU537457B2 (en) 1984-06-28
GB2055900B (en) 1984-04-04
ES488033A0 (es) 1980-12-16
ZA80402B (en) 1981-08-26
HU182603B (en) 1984-02-28
DD148795A5 (de) 1981-06-10
IL59207A0 (en) 1980-05-30
ES8100815A1 (es) 1980-12-16
YU19780A (en) 1983-01-21
JPS56500136A (ja) 1981-02-12
BR7900702A (pt) 1980-12-09
IL59207A (en) 1985-08-30
AU5499980A (en) 1980-08-07
IT8047738A1 (it) 1981-07-29
EP0022839A1 (en) 1981-01-28
CH645077A5 (de) 1984-09-14
WO1980001563A1 (en) 1980-08-07
RO80891B (ro) 1983-08-30
MX153331A (es) 1986-09-17
NL8020027A (nl) 1980-11-28
FI67356B (fi) 1984-11-30
IE800161L (en) 1980-07-29
NO153217C (no) 1986-02-05
CS221253B2 (en) 1983-04-29
IE49370B1 (en) 1985-09-18
AR231428A1 (es) 1984-11-30
NO153217B (no) 1985-10-28
SE441521B (sv) 1985-10-14
RO80891A (ro) 1983-09-26
BE881417A (fr) 1980-05-16
NO802849L (no) 1980-09-26

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19801023

AK Designated contracting states

Designated state(s): FR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19861008