DE2629776A1 - Verfahren zur behandlung von phosphatierschlamm - Google Patents

Verfahren zur behandlung von phosphatierschlamm

Info

Publication number
DE2629776A1
DE2629776A1 DE19762629776 DE2629776A DE2629776A1 DE 2629776 A1 DE2629776 A1 DE 2629776A1 DE 19762629776 DE19762629776 DE 19762629776 DE 2629776 A DE2629776 A DE 2629776A DE 2629776 A1 DE2629776 A1 DE 2629776A1
Authority
DE
Germany
Prior art keywords
phosphate
zinc
acidic
alkali
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.)
Pending
Application number
DE19762629776
Other languages
German (de)
English (en)
Inventor
Douglas Pearson
John Charles Wilson
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of DE2629776A1 publication Critical patent/DE2629776A1/de
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00Phosphorus; Compounds thereof
    • C01B25/16Oxyacids of phosphorus; Salts thereof
    • C01B25/26Phosphates
    • C01B25/37Phosphates of heavy metals
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00Phosphorus; Compounds thereof
    • C01B25/16Oxyacids of phosphorus; Salts thereof
    • C01B25/26Phosphates
    • C01B25/30Alkali metal phosphates
    • C01B25/305Preparation from phosphorus-containing compounds by alkaline treatment
    • C01B25/306Preparation from phosphorus-containing compounds by alkaline treatment from phosphates
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08Orthophosphates
    • C23C22/12Orthophosphates containing zinc cations
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
DE19762629776 1975-07-05 1976-07-02 Verfahren zur behandlung von phosphatierschlamm Pending DE2629776A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28414/75A GB1545515A (en) 1975-07-05 1975-07-05 Treatment of phosphate sludges

Publications (1)

Publication Number Publication Date
DE2629776A1 true DE2629776A1 (de) 1977-01-20

Family

ID=10275251

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762629776 Pending DE2629776A1 (de) 1975-07-05 1976-07-02 Verfahren zur behandlung von phosphatierschlamm

Country Status (5)

Country Link
DE (1) DE2629776A1 (US20030204162A1-20031030-M00001.png)
FR (1) FR2317221A1 (US20030204162A1-20031030-M00001.png)
GB (1) GB1545515A (US20030204162A1-20031030-M00001.png)
IT (1) IT1062108B (US20030204162A1-20031030-M00001.png)
SE (1) SE7607635L (US20030204162A1-20031030-M00001.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608874A1 (en) * 1993-01-29 1994-08-03 Iwamoto, Yukiyoshi Method for dissolving sludge and recovering constituents therefrom
US5350517A (en) * 1990-10-18 1994-09-27 Henkel Kommanditgesellschaft Auf Aktien Method of recycling phosphating sludges
DE4316240C2 (de) * 1992-05-26 2001-05-17 Volkswagen Ag Verfahren zum NE-Metallrecycling in Phosphatierbädern

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117716A1 (de) * 1991-05-30 1992-12-03 Metallgesellschaft Ag Zinkentfernung aus phosphatschlaemmen
CN1309667C (zh) * 2004-01-20 2007-04-11 郑恒昌 金属表面磷化处理制程的废污泥回收法
CN110498402A (zh) * 2019-09-25 2019-11-26 龚典局 一种含磷废酸综合利用方法
CN114014289B (zh) * 2021-10-30 2023-05-02 南昌大学 一种磷酸铁废料提纯的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018850B (de) * 1955-12-31 1957-11-07 Albert Ag Chem Werke Verfahren zur Entkalkung von Kalk, Tonerde und Eisen enthaltenden Phosphaten
JPS5519316B2 (US20030204162A1-20031030-M00001.png) * 1974-02-27 1980-05-24

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5350517A (en) * 1990-10-18 1994-09-27 Henkel Kommanditgesellschaft Auf Aktien Method of recycling phosphating sludges
DE4316240C2 (de) * 1992-05-26 2001-05-17 Volkswagen Ag Verfahren zum NE-Metallrecycling in Phosphatierbädern
EP0608874A1 (en) * 1993-01-29 1994-08-03 Iwamoto, Yukiyoshi Method for dissolving sludge and recovering constituents therefrom
US5554294A (en) * 1993-01-29 1996-09-10 Yukiyoshi Iwamoto Method for dissolving sludge and recovering constituents therefrom

Also Published As

Publication number Publication date
FR2317221B1 (US20030204162A1-20031030-M00001.png) 1978-09-01
FR2317221A1 (fr) 1977-02-04
SE7607635L (sv) 1977-01-06
GB1545515A (en) 1979-05-10
IT1062108B (it) 1983-06-25

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