IL26394A - Process for the preparation of phosphoric acid and gypsum from phosphate rock - Google Patents
Process for the preparation of phosphoric acid and gypsum from phosphate rockInfo
- Publication number
- IL26394A IL26394A IL26394A IL2639466A IL26394A IL 26394 A IL26394 A IL 26394A IL 26394 A IL26394 A IL 26394A IL 2639466 A IL2639466 A IL 2639466A IL 26394 A IL26394 A IL 26394A
- Authority
- IL
- Israel
- Prior art keywords
- gypsum
- crystals
- phosphoric acid
- solution
- process according
- Prior art date
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title claims description 179
- 229910000147 aluminium phosphate Inorganic materials 0.000 title claims description 90
- 239000010440 gypsum Substances 0.000 title claims description 80
- 229910052602 gypsum Inorganic materials 0.000 title claims description 80
- 238000000034 method Methods 0.000 title claims description 55
- 230000008569 process Effects 0.000 title claims description 51
- 239000002367 phosphate rock Substances 0.000 title claims description 25
- 238000002360 preparation method Methods 0.000 title claims description 6
- 239000013078 crystal Substances 0.000 claims description 82
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 74
- 239000001117 sulphuric acid Substances 0.000 claims description 73
- 235000011149 sulphuric acid Nutrition 0.000 claims description 73
- 239000000243 solution Substances 0.000 claims description 72
- 238000001953 recrystallisation Methods 0.000 claims description 60
- 238000005406 washing Methods 0.000 claims description 54
- 239000007788 liquid Substances 0.000 claims description 41
- 229910001868 water Inorganic materials 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 239000000203 mixture Substances 0.000 claims description 31
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims description 25
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 20
- 229910019142 PO4 Inorganic materials 0.000 claims description 17
- 239000010452 phosphate Substances 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 239000012452 mother liquor Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 238000010924 continuous production Methods 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 5
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 239000011549 crystallization solution Substances 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 claims 1
- 239000012065 filter cake Substances 0.000 description 13
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 12
- 238000001914 filtration Methods 0.000 description 11
- 239000000706 filtrate Substances 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 8
- 239000012071 phase Substances 0.000 description 8
- 229910021653 sulphate ion Inorganic materials 0.000 description 8
- 239000001175 calcium sulphate Substances 0.000 description 6
- 235000011132 calcium sulphate Nutrition 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 150000004683 dihydrates Chemical class 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229940085991 phosphate ion Drugs 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241001501852 Diomedeidae Species 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 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
- C01B25/18—Phosphoric acid
- C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB38480/65A GB1162514A (en) | 1965-09-08 | 1965-09-08 | Process for the preparation of Phosphoric Acid and Gypsum from Phosphate Rock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IL26394A true IL26394A (en) | 1970-02-19 |
Family
ID=10403731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL26394A IL26394A (en) | 1965-09-08 | 1966-08-28 | Process for the preparation of phosphoric acid and gypsum from phosphate rock |
Country Status (13)
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3653826A (en) * | 1967-09-21 | 1972-04-04 | Nissan Chemical Ind Ltd | Process for the production of phosphoric acid at a high concentration and a gypsum by-product of improved quality |
| US6632966B2 (en) | 2001-08-24 | 2003-10-14 | Purac Biochem B.V. | Method for the preparation of lactic acid and calcium sulphate dihydrate |
| JP4450621B2 (ja) * | 2001-08-24 | 2010-04-14 | プラク・ビオヘム・ベー・ブイ | 乳酸および硫酸カルシウム二水和物の製法 |
| RU2599525C1 (ru) * | 2015-04-23 | 2016-10-10 | Открытое акционерное общество "Научно-исследовательский институт по удобрениям и инсектофунгицидам имени профессора Я.В. Самойлова" (ОАО "НИУИФ") | Способ получения экстракционной фосфорной кислоты |
| CN111732086A (zh) * | 2020-07-31 | 2020-10-02 | 天宝动物营养科技股份有限公司 | 一种半水-二水法制备磷酸联产高纯石膏工艺 |
| CN116768171B (zh) * | 2023-06-28 | 2024-07-02 | 昆明川金诺化工股份有限公司 | 一种生产优质半水湿法磷酸的工艺 |
| BE1032252B1 (fr) * | 2023-12-20 | 2025-07-22 | Prayon | Procédé de production d'acide phosphorique |
| BE1032259B1 (fr) * | 2023-12-21 | 2025-07-23 | Prayon | Procédé de détermination de la faisabilité de production d'un produit à base de phosphore au départ d'une source phosphatée |
-
1965
- 1965-09-08 GB GB38480/65A patent/GB1162514A/en not_active Expired
-
1966
- 1966-08-28 IL IL26394A patent/IL26394A/en unknown
- 1966-08-29 NL NL666612150A patent/NL153151B/xx not_active IP Right Cessation
- 1966-09-02 FI FI2298/66A patent/FI44589B/fi active
- 1966-09-05 DE DE1542611A patent/DE1542611C3/de not_active Expired
- 1966-09-07 BE BE686573D patent/BE686573A/xx not_active IP Right Cessation
- 1966-09-07 NO NO164589A patent/NO116160B/no unknown
- 1966-09-07 AT AT844766A patent/AT285526B/de not_active IP Right Cessation
- 1966-09-07 DK DK460166AA patent/DK138941B/da unknown
- 1966-09-07 SU SU1101994A patent/SU389657A3/ru active
- 1966-09-07 ES ES0330957A patent/ES330957A1/es not_active Expired
- 1966-09-08 SE SE6612066A patent/SE315575C/xx unknown
- 1966-09-12 OA OA52594A patent/OA02139A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK138941C (enrdf_load_stackoverflow) | 1979-05-07 |
| FI44589B (enrdf_load_stackoverflow) | 1971-08-31 |
| SE315575C (enrdf_load_stackoverflow) | 1975-10-20 |
| NO116160B (enrdf_load_stackoverflow) | 1969-02-10 |
| DE1542611B2 (de) | 1974-06-27 |
| OA02139A (fr) | 1970-05-05 |
| GB1162514A (en) | 1969-08-27 |
| DK138941B (da) | 1978-11-20 |
| SU389657A3 (enrdf_load_stackoverflow) | 1973-07-05 |
| ES330957A1 (es) | 1967-09-16 |
| BE686573A (enrdf_load_stackoverflow) | 1967-03-07 |
| DE1542611A1 (de) | 1970-04-09 |
| NL6612150A (enrdf_load_stackoverflow) | 1967-03-09 |
| SE315575B (enrdf_load_stackoverflow) | 1969-10-06 |
| DE1542611C3 (de) | 1978-05-11 |
| NL153151B (nl) | 1977-05-16 |
| AT285526B (de) | 1970-10-27 |
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