FR2317221B1 - - Google Patents

Info

Publication number
FR2317221B1
FR2317221B1 FR7620502A FR7620502A FR2317221B1 FR 2317221 B1 FR2317221 B1 FR 2317221B1 FR 7620502 A FR7620502 A FR 7620502A FR 7620502 A FR7620502 A FR 7620502A FR 2317221 B1 FR2317221 B1 FR 2317221B1
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
FR7620502A
Other languages
French (fr)
Other versions
FR2317221A1 (en
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 FR2317221A1 publication Critical patent/FR2317221A1/en
Application granted granted Critical
Publication of FR2317221B1 publication Critical patent/FR2317221B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/37—Phosphates of heavy metals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/30—Alkali metal phosphates
    • C01B25/305—Preparation from phosphorus-containing compounds by alkaline treatment
    • C01B25/306—Preparation from phosphorus-containing compounds by alkaline treatment from phosphates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23C—COATING 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
    • C23C22/00—Chemical 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
    • C23C22/05—Chemical 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
    • C23C22/06—Chemical 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
    • C23C22/07—Chemical 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
    • C23C22/08—Orthophosphates
    • C23C22/12—Orthophosphates containing zinc cations
    • 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

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)
FR7620502A 1975-07-05 1976-07-05 PHOSPHATE SLUDGE TREATMENT PROCESS Granted FR2317221A1 (en)

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 (2)

Publication Number Publication Date
FR2317221A1 FR2317221A1 (en) 1977-02-04
FR2317221B1 true FR2317221B1 (en) 1978-09-01

Family

ID=10275251

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7620502A Granted FR2317221A1 (en) 1975-07-05 1976-07-05 PHOSPHATE SLUDGE TREATMENT PROCESS

Country Status (5)

Country Link
DE (1) DE2629776A1 (en)
FR (1) FR2317221A1 (en)
GB (1) GB1545515A (en)
IT (1) IT1062108B (en)
SE (1) SE7607635L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032956A1 (en) * 1990-10-18 1992-04-23 Henkel Kgaa METHOD FOR RECYCLING PHOSPATIUM SLUDGE
DE4117716A1 (en) * 1991-05-30 1992-12-03 Metallgesellschaft Ag ZINC REMOVAL FROM PHOSPHATE SLUDGE
DE4316240C2 (en) * 1992-05-26 2001-05-17 Volkswagen Ag Process for non-ferrous metal recycling in phosphating baths
CA2114297A1 (en) * 1993-01-29 1994-07-30 Tadashi Nishino Method for dissolving sludge and recovering constituents therefrom
CN1309667C (en) * 2004-01-20 2007-04-11 郑恒昌 Waste mud recovering method for metal surface phosphorizing treating process
CN110498402A (en) * 2019-09-25 2019-11-26 龚典局 A kind of phosphorous spent acid method of comprehensive utilization
CN114014289B (en) * 2021-10-30 2023-05-02 南昌大学 Method for purifying iron phosphate waste

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018850B (en) * 1955-12-31 1957-11-07 Albert Ag Chem Werke Process for decalcifying phosphates containing lime, clay and iron
JPS5519316B2 (en) * 1974-02-27 1980-05-24

Also Published As

Publication number Publication date
SE7607635L (en) 1977-01-06
FR2317221A1 (en) 1977-02-04
IT1062108B (en) 1983-06-25
GB1545515A (en) 1979-05-10
DE2629776A1 (en) 1977-01-20

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Legal Events

Date Code Title Description
ST Notification of lapse