ES480523A1 - Monocalcium Phosphate and Phosphoric Acid Production - Google Patents
Monocalcium Phosphate and Phosphoric Acid ProductionInfo
- Publication number
- ES480523A1 ES480523A1 ES480523A ES480523A ES480523A1 ES 480523 A1 ES480523 A1 ES 480523A1 ES 480523 A ES480523 A ES 480523A ES 480523 A ES480523 A ES 480523A ES 480523 A1 ES480523 A1 ES 480523A1
- Authority
- ES
- Spain
- Prior art keywords
- phosphoric acid
- phosphate
- potassium
- k2sif6
- kh2po4
- 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
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title abstract 16
- 229910000147 aluminium phosphate Inorganic materials 0.000 title abstract 6
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 title abstract 4
- 239000001506 calcium phosphate Substances 0.000 title abstract 4
- 229910000150 monocalcium phosphate Inorganic materials 0.000 title abstract 4
- 235000019691 monocalcium phosphate Nutrition 0.000 title abstract 4
- 235000011007 phosphoric acid Nutrition 0.000 abstract 9
- 229910020440 K2SiF6 Inorganic materials 0.000 abstract 3
- 239000007836 KH2PO4 Substances 0.000 abstract 3
- 229910000402 monopotassium phosphate Inorganic materials 0.000 abstract 3
- 235000019796 monopotassium phosphate Nutrition 0.000 abstract 3
- 239000002367 phosphate rock Substances 0.000 abstract 3
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 abstract 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000003337 fertilizer Substances 0.000 abstract 1
- 150000002222 fluorine compounds Chemical class 0.000 abstract 1
- 239000010440 gypsum Substances 0.000 abstract 1
- 229910052602 gypsum Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- CHKVPAROMQMJNQ-UHFFFAOYSA-M potassium bisulfate Chemical compound [K+].OS([O-])(=O)=O CHKVPAROMQMJNQ-UHFFFAOYSA-M 0.000 abstract 1
- 229910001414 potassium ion Inorganic materials 0.000 abstract 1
- 229910000160 potassium phosphate Inorganic materials 0.000 abstract 1
- 235000011009 potassium phosphates Nutrition 0.000 abstract 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 abstract 1
- 229910052939 potassium sulfate Inorganic materials 0.000 abstract 1
- 239000001120 potassium sulphate Substances 0.000 abstract 1
- 235000011151 potassium sulphates Nutrition 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/20—Halides
- C01F11/22—Fluorides
-
- 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
- C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
- C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
- C01B25/225—Dihydrate 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
- C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
- C01B25/328—Defluorination during or after the preparation
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
- C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
- C05B11/10—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using orthophosphoric acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fertilizers (AREA)
- Removal Of Specific Substances (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Silicon Compounds (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Monocalcium phosphate, phosphoric acid and/or potassium phosphate containing fertilizers are produced in a process involving acidulation of phosphate rock with phosphoric acid in the presence of added silicon dioxide and potassium ion whereby fluorides contained in the rock are converted to K2SiF6 and monocalcium phosphate dissolved in phosphoric acid is formed during acidulation. In an important feature, the K2SiF6 is separated and hydrolyzed to regenerate the K2O from K2SiF6 recycled KH2PO4/H3PO4 solution for further reaction with fluoride from fresh phosphate rock feed. A portion of the MCP/H3PO4 solution and/or crystallized monocalcium phosphate can then be reacted with potassium sulphate, potassium bisulphate, or mixtures thereof to form KH2PO4, or KH2PO4/H3PO4, solutions, and gypsum. In a closely related embodiment, the remaining MCP/H3PO4 solution is reacted with sulphuric acid to produce phosphoric acid product and/or the recycle phosphoric acid required in the phosphate rock acidulation step.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/930,147 US4160657A (en) | 1978-01-19 | 1978-08-02 | Preparation of monocalcium phosphate and phosphoric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES480523A1 true ES480523A1 (en) | 1980-01-16 |
Family
ID=25458980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES480523A Expired ES480523A1 (en) | 1978-08-02 | 1979-05-14 | Monocalcium Phosphate and Phosphoric Acid Production |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5827207B2 (en) |
| BE (1) | BE876325A (en) |
| BR (1) | BR7903045A (en) |
| CA (1) | CA1115483A (en) |
| DE (1) | DE2930825A1 (en) |
| ES (1) | ES480523A1 (en) |
| FR (1) | FR2432477A1 (en) |
| GB (1) | GB2026996B (en) |
| IL (1) | IL57301A (en) |
| IN (1) | IN150442B (en) |
| IT (1) | IT1194869B (en) |
| MA (1) | MA18439A1 (en) |
| ZA (1) | ZA792199B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586530B2 (en) * | 1976-09-06 | 1983-02-04 | ライオン株式会社 | composite emulsion |
| JPS58143831A (en) * | 1982-02-22 | 1983-08-26 | Taihoo Kogyo Kk | W/o/w composite emulsion |
| JPS6016542A (en) * | 1983-07-07 | 1985-01-28 | Meiji Milk Prod Co Ltd | coffee cream |
| JPS6016546A (en) * | 1983-07-07 | 1985-01-28 | Meiji Milk Prod Co Ltd | cream for whipping |
| JPS60102137A (en) * | 1983-07-08 | 1985-06-06 | Meiji Milk Prod Co Ltd | Synthetic milk and synthetic concentrated milk |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2218382C3 (en) * | 1972-04-15 | 1975-08-21 | Gebrueder Giulini Gmbh, 6700 Ludwigshafen | Process for the production of pure calcium sulphate in phosphoric acid wet digestion |
| DE2543632C2 (en) * | 1974-10-07 | 1987-04-02 | Pennzoil Co. (n.d.Ges.des Staates Delaware), Shreveport, La. | Process for preparing a solution of monocalcium phosphate in phosphoric acid |
| US4055626A (en) * | 1976-06-15 | 1977-10-25 | Pennzoil Company | Method of producing fluoride-free phosphoric acid |
-
1979
- 1979-05-04 CA CA326,914A patent/CA1115483A/en not_active Expired
- 1979-05-08 ZA ZA792199A patent/ZA792199B/en unknown
- 1979-05-14 FR FR7912214A patent/FR2432477A1/en active Granted
- 1979-05-14 ES ES480523A patent/ES480523A1/en not_active Expired
- 1979-05-16 IL IL57301A patent/IL57301A/en unknown
- 1979-05-17 BE BE0/195218A patent/BE876325A/en not_active IP Right Cessation
- 1979-05-17 GB GB7917161A patent/GB2026996B/en not_active Expired
- 1979-05-17 BR BR7903045A patent/BR7903045A/en unknown
- 1979-05-18 MA MA18633A patent/MA18439A1/en unknown
- 1979-05-19 IN IN522/CAL/79A patent/IN150442B/en unknown
- 1979-05-21 JP JP54062556A patent/JPS5827207B2/en not_active Expired
- 1979-06-01 IT IT12625/79A patent/IT1194869B/en active
- 1979-07-30 DE DE19792930825 patent/DE2930825A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IL57301A (en) | 1982-07-30 |
| ZA792199B (en) | 1980-05-28 |
| MA18439A1 (en) | 1979-12-31 |
| IT1194869B (en) | 1988-09-28 |
| IT7912625A0 (en) | 1979-06-01 |
| BR7903045A (en) | 1980-03-18 |
| FR2432477B1 (en) | 1984-05-11 |
| BE876325A (en) | 1979-11-19 |
| JPS5827207B2 (en) | 1983-06-08 |
| FR2432477A1 (en) | 1980-02-29 |
| GB2026996A (en) | 1980-02-13 |
| CA1115483A (en) | 1982-01-05 |
| GB2026996B (en) | 1982-09-02 |
| DE2930825A1 (en) | 1980-02-21 |
| JPS5523087A (en) | 1980-02-19 |
| DE2930825C2 (en) | 1988-01-07 |
| IN150442B (en) | 1982-10-09 |
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