GB1504018A - Phosphate process - Google Patents
Phosphate processInfo
- Publication number
- GB1504018A GB1504018A GB41172/75A GB4117275A GB1504018A GB 1504018 A GB1504018 A GB 1504018A GB 41172/75 A GB41172/75 A GB 41172/75A GB 4117275 A GB4117275 A GB 4117275A GB 1504018 A GB1504018 A GB 1504018A
- Authority
- GB
- United Kingdom
- Prior art keywords
- leach
- moles
- acid
- leached
- hno
- 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 abstract 3
- 239000010452 phosphate Substances 0.000 title abstract 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title abstract 3
- 239000000463 material Substances 0.000 abstract 6
- 239000002253 acid Substances 0.000 abstract 3
- 239000011575 calcium Substances 0.000 abstract 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000010440 gypsum Substances 0.000 abstract 1
- 229910052602 gypsum Inorganic materials 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 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
- C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
- C01B25/324—Preparation from a reaction solution obtained by acidifying with an acid other than orthophosphoric acid
-
- 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
- C01B25/18—Phosphoric acid
- C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
-
- 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
- C01B25/301—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates
- C01B25/303—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates with elimination of impurities
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1504018 Recovering phosphate values UNITED STATES GYPSUM CO 8 Oct 1975 [25 Oct 1974] 41172/75 Heading C1A Phosphate values are leached from material containing both phosphatic mineral and calcium by contacting the material with a leach acid mixture of H 2 SO 4 and either HCl or HNO 3 in amounts ranging from 0À956 to 0À1294 moles H 2 SO 4 , from 0À0637 to 0À0861 moles HC1 or HNO 3 , and from 44À4 to 60À8 moles of H 2 O per mole P 2 O 5 in the material, whereby 1 mole Ca per mole P 2 O 5 is leached from the material and withdrawing a phosphoric acid leach liquor containing between 5 and 7% by wt. P 2 O 5 . The phosphatic material may be treated with the leach acid at 100 to 140 F. at a rate of 13À7 to 16À7 tons of leach acid per ton P 2 O 5 in the material. The withdrawn leach liquor may be treated by raising the pH to between 2 and 3 to precipitate, e.g. Fe, Al and fluoride impurities, and then further raising the pH to between 3 and 5 to precipitate Ca 3 (PO 4 ) 2 .
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/518,128 US4012491A (en) | 1971-10-19 | 1974-10-25 | Phosphate process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1504018A true GB1504018A (en) | 1978-03-15 |
Family
ID=24062674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB41172/75A Expired GB1504018A (en) | 1974-10-25 | 1975-10-08 | Phosphate process |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5165097A (en) |
| BE (1) | BE834349A (en) |
| BR (1) | BR7506853A (en) |
| CA (1) | CA1034738A (en) |
| DE (1) | DE2547782A1 (en) |
| FI (1) | FI752980A (en) |
| FR (1) | FR2289443A2 (en) |
| GB (1) | GB1504018A (en) |
| IL (1) | IL48177A0 (en) |
| IN (1) | IN144533B (en) |
| IT (1) | IT1047836B (en) |
| NL (1) | NL7512503A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7824634B2 (en) | 2003-12-24 | 2010-11-02 | Ecophos | Method for etching phosphate ores |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA200002638B (en) | 2000-05-26 | 2001-01-31 | Jan Christoffel De Waal | The production of dicalcium phosphate or monocalcium phosphate. |
| WO2015081973A1 (en) * | 2013-12-02 | 2015-06-11 | Ecophos S.A. | Source of phosphate for agriculture and the food industry |
| BE1021886B1 (en) * | 2013-12-02 | 2016-01-25 | Ecophos S.A. | NEW PHOSPHATE SOURCE FOR AGRICULTURE AND FOOD. |
| MY180454A (en) | 2013-12-02 | 2020-11-29 | Ecophos S A | Source of phosphate for agriculture and the food industry |
-
1975
- 1975-02-19 CA CA220,416A patent/CA1034738A/en not_active Expired
- 1975-09-25 IL IL48177A patent/IL48177A0/en unknown
- 1975-10-03 IN IN1906/CAL/1975A patent/IN144533B/en unknown
- 1975-10-08 GB GB41172/75A patent/GB1504018A/en not_active Expired
- 1975-10-09 BE BE160812A patent/BE834349A/en unknown
- 1975-10-16 IT IT51810/75A patent/IT1047836B/en active
- 1975-10-20 BR BR7506853*A patent/BR7506853A/en unknown
- 1975-10-23 JP JP50126978A patent/JPS5165097A/en active Granted
- 1975-10-24 NL NL7512503A patent/NL7512503A/en unknown
- 1975-10-24 DE DE19752547782 patent/DE2547782A1/en not_active Withdrawn
- 1975-10-24 FR FR7532647A patent/FR2289443A2/en active Pending
- 1975-10-24 FI FI752980A patent/FI752980A/fi not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7824634B2 (en) | 2003-12-24 | 2010-11-02 | Ecophos | Method for etching phosphate ores |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7512503A (en) | 1976-04-27 |
| IN144533B (en) | 1978-05-13 |
| FR2289443A2 (en) | 1976-05-28 |
| FI752980A (en) | 1976-04-26 |
| BE834349A (en) | 1976-02-02 |
| AU8511675A (en) | 1977-04-21 |
| JPS5165097A (en) | 1976-06-05 |
| BR7506853A (en) | 1976-08-17 |
| CA1034738A (en) | 1978-07-18 |
| IT1047836B (en) | 1980-10-20 |
| IL48177A0 (en) | 1975-11-25 |
| JPS5729403B2 (en) | 1982-06-22 |
| DE2547782A1 (en) | 1976-05-06 |
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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 |