DE1667635B1 - Verfahren zur herstellung von phosphorsaeure und calcium sulfat hemihydrat - Google Patents
Verfahren zur herstellung von phosphorsaeure und calcium sulfat hemihydratInfo
- Publication number
- DE1667635B1 DE1667635B1 DE19681667635 DE1667635A DE1667635B1 DE 1667635 B1 DE1667635 B1 DE 1667635B1 DE 19681667635 DE19681667635 DE 19681667635 DE 1667635 A DE1667635 A DE 1667635A DE 1667635 B1 DE1667635 B1 DE 1667635B1
- Authority
- DE
- Germany
- Prior art keywords
- vessel
- phosphoric acid
- gypsum
- acid
- slurry
- 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.)
- Withdrawn
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title claims description 54
- 229910000147 aluminium phosphate Inorganic materials 0.000 title claims description 27
- 238000000034 method Methods 0.000 title claims description 23
- 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 title claims description 19
- 238000002360 preparation method Methods 0.000 title claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 39
- 239000010440 gypsum Substances 0.000 claims description 25
- 229910052602 gypsum Inorganic materials 0.000 claims description 25
- 239000002002 slurry Substances 0.000 claims description 20
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 18
- 239000002253 acid Substances 0.000 claims description 13
- 239000013078 crystal Substances 0.000 claims description 13
- 239000002367 phosphate rock Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000000047 product Substances 0.000 claims description 9
- 239000000706 filtrate Substances 0.000 claims description 8
- 235000011132 calcium sulphate Nutrition 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000011507 gypsum plaster Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 230000029087 digestion Effects 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000006227 byproduct Substances 0.000 claims description 2
- 239000003337 fertilizer Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 150000003016 phosphoric acids Chemical class 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims description 2
- 238000001953 recrystallisation Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 238000000209 wet digestion Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims 2
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims 2
- 239000003643 water by type Substances 0.000 claims 2
- 239000003513 alkali Substances 0.000 claims 1
- 239000001175 calcium sulphate Substances 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 150000004683 dihydrates Chemical class 0.000 claims 1
- 150000004677 hydrates Chemical class 0.000 claims 1
- 239000007791 liquid phase Substances 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 239000011343 solid material Substances 0.000 claims 1
- 230000019635 sulfation Effects 0.000 claims 1
- 238000005670 sulfation reaction Methods 0.000 claims 1
- 150000002500 ions Chemical class 0.000 description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- -1 calcium sulfate-hemi-phosphoric acid Chemical compound 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- VCSZKSHWUBFOOE-UHFFFAOYSA-N dioxidanium;sulfate Chemical compound O.O.OS(O)(=O)=O VCSZKSHWUBFOOE-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007614 solvation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B11/00—Calcium sulfate cements
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
-
- 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
- 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
- C01F11/46—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/02—Portland cement
- C04B7/04—Portland cement using raw materials containing gypsum, i.e. processes of the Mueller-Kuehne type
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB482867A GB1209911A (en) | 1967-02-01 | 1967-02-01 | Manufacture of phosphoric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1667635B1 true DE1667635B1 (de) | 1971-12-16 |
Family
ID=9784561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19681667635 Withdrawn DE1667635B1 (de) | 1967-02-01 | 1968-01-30 | Verfahren zur herstellung von phosphorsaeure und calcium sulfat hemihydrat |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE710189A (cs) |
| DE (1) | DE1667635B1 (cs) |
| FR (1) | FR1556482A (cs) |
| GB (1) | GB1209911A (cs) |
| IL (1) | IL29380A (cs) |
| NL (1) | NL6801375A (cs) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021140075A1 (de) * | 2020-01-08 | 2021-07-15 | Thyssenkrupp Industrial Solutions Ag | Integriertes verfahren zur kommerziellen und industriellen verwertung von kalziumsulfat aus der phosphorsäureproduktion |
| WO2021140073A1 (de) * | 2020-01-08 | 2021-07-15 | Thyssenkrupp Industrial Solutions Ag | Integriertes verfahren zur herstellung eines baustoffs aus phosphorgips |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1557663A (en) * | 1975-08-01 | 1979-12-12 | Albright & Wilson | Process for preparing phosphore acid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1836672A (en) * | 1930-02-13 | 1931-12-15 | Kunstdunger Patent Verwertungs | Method of leaching phosphate rock |
| US3003852A (en) * | 1955-02-16 | 1961-10-10 | Kemishka Patenter Ab | Production of orthophosphoric acid |
| FR1409248A (fr) * | 1963-07-04 | 1965-08-27 | Prayon | Procédé de purification du gypse résiduaire provenant de la fabrication d'acide phosphorique par l'attaque sulfurique de phosphates naturels |
-
1967
- 1967-02-01 GB GB482867A patent/GB1209911A/en not_active Expired
-
1968
- 1968-01-28 IL IL2938068A patent/IL29380A/en unknown
- 1968-01-30 NL NL6801375A patent/NL6801375A/xx unknown
- 1968-01-30 DE DE19681667635 patent/DE1667635B1/de not_active Withdrawn
- 1968-01-31 BE BE710189D patent/BE710189A/xx unknown
- 1968-01-31 FR FR1556482D patent/FR1556482A/fr not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1836672A (en) * | 1930-02-13 | 1931-12-15 | Kunstdunger Patent Verwertungs | Method of leaching phosphate rock |
| US3003852A (en) * | 1955-02-16 | 1961-10-10 | Kemishka Patenter Ab | Production of orthophosphoric acid |
| FR1409248A (fr) * | 1963-07-04 | 1965-08-27 | Prayon | Procédé de purification du gypse résiduaire provenant de la fabrication d'acide phosphorique par l'attaque sulfurique de phosphates naturels |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021140075A1 (de) * | 2020-01-08 | 2021-07-15 | Thyssenkrupp Industrial Solutions Ag | Integriertes verfahren zur kommerziellen und industriellen verwertung von kalziumsulfat aus der phosphorsäureproduktion |
| WO2021140073A1 (de) * | 2020-01-08 | 2021-07-15 | Thyssenkrupp Industrial Solutions Ag | Integriertes verfahren zur herstellung eines baustoffs aus phosphorgips |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1209911A (en) | 1970-10-21 |
| IL29380A (en) | 1972-02-29 |
| NL6801375A (cs) | 1968-08-02 |
| FR1556482A (cs) | 1969-02-07 |
| BE710189A (cs) | 1968-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 | ||
| EHJ | Ceased/non-payment of the annual fee |