GB1545515A - Treatment of phosphate sludges - Google Patents
Treatment of phosphate sludgesInfo
- 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
Links
- 229910019142 PO4 Inorganic materials 0.000 title 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title 1
- 239000010452 phosphate Substances 0.000 title 1
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)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB28414/75A GB1545515A (en) | 1975-07-05 | 1975-07-05 | Treatment of phosphate sludges |
DE19762629776 DE2629776A1 (en) | 1975-07-05 | 1976-07-02 | METHOD OF TREATMENT OF PHOSPHATING SLUDGE |
SE7607635A SE7607635L (en) | 1975-07-05 | 1976-07-02 | PROCEDURE FOR TREATMENT OF PHOSPHATE SLAM |
FR7620502A FR2317221A1 (en) | 1975-07-05 | 1976-07-05 | PHOSPHATE SLUDGE TREATMENT PROCESS |
IT25014/76A IT1062108B (en) | 1975-07-05 | 1976-07-05 | PHOSPHATIC SLUDGE TREATMENT |
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)
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)
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)
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 |
-
1975
- 1975-07-05 GB GB28414/75A patent/GB1545515A/en not_active Expired
-
1976
- 1976-07-02 SE SE7607635A patent/SE7607635L/en unknown
- 1976-07-02 DE DE19762629776 patent/DE2629776A1/en active Pending
- 1976-07-05 IT IT25014/76A patent/IT1062108B/en active
- 1976-07-05 FR FR7620502A patent/FR2317221A1/en active Granted
Cited By (4)
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 |
---|---|
FR2317221B1 (en) | 1978-09-01 |
SE7607635L (en) | 1977-01-06 |
DE2629776A1 (en) | 1977-01-20 |
IT1062108B (en) | 1983-06-25 |
FR2317221A1 (en) | 1977-02-04 |
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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 |