GB1545515A - Treatment of phosphate sludges - Google Patents

Treatment of phosphate sludges

Info

Publication number
GB1545515A
GB1545515A GB28414/75A GB2841475A GB1545515A GB 1545515 A GB1545515 A GB 1545515A GB 28414/75 A GB28414/75 A GB 28414/75A GB 2841475 A GB2841475 A GB 2841475A GB 1545515 A GB1545515 A GB 1545515A
Authority
GB
United Kingdom
Prior art keywords
treatment
sludges
phosphate
phosphate sludges
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
GB28414/75A
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.)
Pyrene Chemical Services Ltd
Original Assignee
Pyrene Chemical Services 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
Application filed by Pyrene Chemical Services Ltd filed Critical Pyrene Chemical Services Ltd
Priority to GB28414/75A priority Critical patent/GB1545515A/en
Priority to SE7607635A priority patent/SE7607635L/en
Priority to DE19762629776 priority patent/DE2629776A1/en
Priority to IT25014/76A priority patent/IT1062108B/en
Priority to FR7620502A priority patent/FR2317221A1/en
Publication of GB1545515A publication Critical patent/GB1545515A/en
Expired 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)
GB28414/75A 1975-07-05 1975-07-05 Treatment of phosphate sludges Expired GB1545515A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB28414/75A GB1545515A (en) 1975-07-05 1975-07-05 Treatment of phosphate sludges
SE7607635A SE7607635L (en) 1975-07-05 1976-07-02 PROCEDURE FOR TREATMENT OF PHOSPHATE SLAM
DE19762629776 DE2629776A1 (en) 1975-07-05 1976-07-02 METHOD OF TREATMENT OF PHOSPHATING SLUDGE
IT25014/76A IT1062108B (en) 1975-07-05 1976-07-05 PHOSPHATIC SLUDGE TREATMENT
FR7620502A FR2317221A1 (en) 1975-07-05 1976-07-05 PHOSPHATE SLUDGE TREATMENT PROCESS

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
GB1545515A true GB1545515A (en) 1979-05-10

Family

ID=10275251

Family Applications (1)

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

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)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5198020A (en) * 1991-05-30 1993-03-30 Metallgesellschaft Aktiengesellschaft Removal of zinc from phosphating process sludges
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
CN114014289A (en) * 2021-10-30 2022-02-08 南昌大学 Method for purifying iron phosphate waste

Families Citing this family (3)

* 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
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

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5198020A (en) * 1991-05-30 1993-03-30 Metallgesellschaft Aktiengesellschaft Removal of zinc from phosphating process sludges
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
CN114014289A (en) * 2021-10-30 2022-02-08 南昌大学 Method for purifying iron phosphate waste

Also Published As

Publication number Publication date
IT1062108B (en) 1983-06-25
DE2629776A1 (en) 1977-01-20
FR2317221A1 (en) 1977-02-04
FR2317221B1 (en) 1978-09-01
SE7607635L (en) 1977-01-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee