FR2317221A1 - PHOSPHATE SLUDGE TREATMENT PROCESS - Google Patents

PHOSPHATE SLUDGE TREATMENT PROCESS

Info

Publication number
FR2317221A1
FR2317221A1 FR7620502A FR7620502A FR2317221A1 FR 2317221 A1 FR2317221 A1 FR 2317221A1 FR 7620502 A FR7620502 A FR 7620502A FR 7620502 A FR7620502 A FR 7620502A FR 2317221 A1 FR2317221 A1 FR 2317221A1
Authority
FR
France
Prior art keywords
treatment process
sludge treatment
phosphate sludge
phosphate
treatment
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.)
Granted
Application number
FR7620502A
Other languages
French (fr)
Other versions
FR2317221B1 (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
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 true FR2317221A1 (en) 1977-02-04
FR2317221B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992007106A1 (en) * 1990-10-18 1992-04-30 Henkel Kommanditgesellschaft Auf Aktien Method of recycling phosphating sludges
EP0520524A1 (en) * 1991-05-30 1992-12-30 METALLGESELLSCHAFT Aktiengesellschaft Removal of zinc from phosphating sludges

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (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
JPS50116395A (en) * 1974-02-27 1975-09-11

Patent Citations (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
JPS50116395A (en) * 1974-02-27 1975-09-11

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992007106A1 (en) * 1990-10-18 1992-04-30 Henkel Kommanditgesellschaft Auf Aktien Method of recycling phosphating sludges
US5350517A (en) * 1990-10-18 1994-09-27 Henkel Kommanditgesellschaft Auf Aktien Method of recycling phosphating sludges
EP0520524A1 (en) * 1991-05-30 1992-12-30 METALLGESELLSCHAFT Aktiengesellschaft Removal of zinc from phosphating sludges
US5198020A (en) * 1991-05-30 1993-03-30 Metallgesellschaft Aktiengesellschaft Removal of zinc from phosphating process sludges

Also Published As

Publication number Publication date
DE2629776A1 (en) 1977-01-20
GB1545515A (en) 1979-05-10
SE7607635L (en) 1977-01-06
IT1062108B (en) 1983-06-25
FR2317221B1 (en) 1978-09-01

Similar Documents

Publication Publication Date Title
FR2460897B1 (en) SLUDGE TREATMENT PROCESS
FR2292674A1 (en) SLUDGE TREATMENT PROCESS
BE849344A (en) WATER TREATMENT PROCESS
BE871700A (en) WASTEWATER TREATMENT PROCESS
FR2349194A1 (en) RADIOACTIVE RESIDUE TREATMENT PROCESS
FR2310616A1 (en) RADIO-ACTIVE WASTE WATER TREATMENT PROCESS
BE811326A (en) TREATMENT PROCESS
PT65029B (en) HYDROMETALLURGICAL PROCESS FOR THE TREATMENT OF MINERALSULFIDES
BE844274A (en) PROCESS AND INSTALLATION FOR TREATMENT OF BATTITURES
BE872686A (en) LOOFAHS TREATMENT PROCESS
FR2307342A1 (en) RADIOACTIVE CONCENTRATE TREATMENT PROCESS
FR2345226A1 (en) ANTI-RUST TREATMENT PROCESS
BE861318A (en) PROCESS FOR TREATING FLUORESCENT SUBSTANCES
BE850064A (en) CATALYTIC TREATMENT PROCESS
FR2322103A1 (en) RESIDUAL WATER TREATMENT PROCESS
BE844993A (en) MIGRAILLE TREATMENT PROCESS
FR2311390A1 (en) TREATMENT PROCESS
FR2339434A1 (en) WASTE TREATMENT PROCESS
FR2302048A1 (en) MA TREATMENT PROCESS
FR2317221A1 (en) PHOSPHATE SLUDGE TREATMENT PROCESS
BE844351A (en) EFFLUENT TREATMENT PROCESS
BE789585A (en) GASEOUS EFFLUENT TREATMENT PROCESS
BE808280A (en) PROCESS FOR TREATMENT OF PYROCHLORINE CONCENTRATES
FR2347932A1 (en) ANIMAL TREATMENT PROCESS
BE852320A (en) TREATMENT PROCESS

Legal Events

Date Code Title Description
ST Notification of lapse