NO121719B - - Google Patents
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- Publication number
- NO121719B NO121719B NO170423A NO17042367A NO121719B NO 121719 B NO121719 B NO 121719B NO 170423 A NO170423 A NO 170423A NO 17042367 A NO17042367 A NO 17042367A NO 121719 B NO121719 B NO 121719B
- Authority
- NO
- Norway
- Prior art keywords
- zone
- acid
- slurry
- hemihydrate
- calcium sulfate
- Prior art date
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 64
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 38
- 239000002002 slurry Substances 0.000 claims description 35
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 32
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 239000002253 acid Substances 0.000 claims description 17
- 239000002367 phosphate rock Substances 0.000 claims description 17
- 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 16
- 239000010440 gypsum Substances 0.000 claims description 16
- 229910052602 gypsum Inorganic materials 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000029087 digestion Effects 0.000 claims description 11
- 239000001506 calcium phosphate Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims description 7
- 229910000150 monocalcium phosphate Inorganic materials 0.000 claims description 7
- 235000019691 monocalcium phosphate Nutrition 0.000 claims description 7
- 238000000184 acid digestion Methods 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000001953 recrystallisation Methods 0.000 claims description 3
- 238000005352 clarification Methods 0.000 claims description 2
- 239000010802 sludge Substances 0.000 claims 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 20
- 239000013078 crystal Substances 0.000 description 11
- 238000001914 filtration Methods 0.000 description 11
- 239000011435 rock Substances 0.000 description 10
- 235000011132 calcium sulphate Nutrition 0.000 description 8
- 239000001175 calcium sulphate Substances 0.000 description 6
- 239000012065 filter cake Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000000706 filtrate Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 229910000389 calcium phosphate Inorganic materials 0.000 description 3
- 235000011010 calcium phosphates Nutrition 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910021653 sulphate ion Inorganic materials 0.000 description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000006735 deficit Effects 0.000 description 2
- 150000004683 dihydrates Chemical class 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/08—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in rotating vessels; Atomisation on rotating discs
-
- 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)
- Chemical Kinetics & Catalysis (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 |
|---|---|---|---|
| US59277666A | 1966-11-08 | 1966-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO121719B true NO121719B (hu) | 1971-04-05 |
Family
ID=24372020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO170423A NO121719B (hu) | 1966-11-08 | 1967-11-07 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3552918A (hu) |
| BE (1) | BE706192A (hu) |
| DE (1) | DE1667462A1 (hu) |
| ES (1) | ES346854A1 (hu) |
| FR (1) | FR1543753A (hu) |
| GB (1) | GB1201200A (hu) |
| NL (1) | NL6715061A (hu) |
| NO (1) | NO121719B (hu) |
| SE (1) | SE333359B (hu) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2427122B2 (de) * | 1974-06-05 | 1976-12-30 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen | Verfahren zur stabilisierung des bei der herstellung nasser phosphorsaeure anfallenden alpha-calciumsulfat-halbhydrat |
| US4134964A (en) * | 1974-10-04 | 1979-01-16 | Hoechst Aktiengesellschaft | Process and apparatus for purifying wet-processed phosphoric acid |
| GB1547422A (en) * | 1975-03-31 | 1979-06-20 | Japan Government | Manufacture of gypsum |
| GB1557663A (en) * | 1975-08-01 | 1979-12-12 | Albright & Wilson | Process for preparing phosphore acid |
| US4029743A (en) * | 1975-12-24 | 1977-06-14 | Hauge Douglas O | Phosphoric acid manufacture |
| US4145282A (en) * | 1977-01-24 | 1979-03-20 | Andco Industries, Inc. | Process for purifying waste water containing fluoride ion |
| US4363786A (en) * | 1978-05-26 | 1982-12-14 | Occidental Chemical Corp. | Apparatus for reacting a particulate solid and a liquid |
| US4323462A (en) * | 1979-02-12 | 1982-04-06 | Andco Industries, Inc. | Process for purifying water containing fluoride ion |
| US4226710A (en) * | 1979-02-12 | 1980-10-07 | Andco Industries, Inc. | Process for purifying water containing fluoride ion |
| US4309395A (en) * | 1980-04-21 | 1982-01-05 | Hauge Douglas O | Phosphoric acid production |
| JPS63144107A (ja) * | 1986-12-08 | 1988-06-16 | Mitsui Toatsu Chem Inc | 高濃度燐酸−半水石こうスラリ−の濾過方法 |
| CN1340457A (zh) * | 2000-09-01 | 2002-03-20 | 山东鲁北企业集团总公司 | 一种磷酸生产工艺 |
| EA015047B1 (ru) * | 2009-03-06 | 2011-04-29 | Открытое Акционерное Общество "Научно-Исследовательский Институт По Удобрениям И Инсектофунгицидам Им. Профессора Я.В. Самойлова" | Способ получения экстракционной фосфорной кислоты |
| RU2583956C2 (ru) * | 2014-09-02 | 2016-05-10 | Открытое акционерное общество "Научно-исследовательский институт по удобрениям и инсектофунгицидам имени профессора Я.В. Самойлова" (ОАО "НИУИФ") | Способ получения экстракционной фосфорной кислоты |
| DE102016212242B4 (de) | 2016-07-05 | 2019-02-07 | Technische Universität Bergakademie Freiberg | Verfahren zur Herstellung von Phosphorsäure aus phosphorhaltigen Primär- und Sekundärrohstoffen |
-
1966
- 1966-11-08 US US592776A patent/US3552918A/en not_active Expired - Lifetime
-
1967
- 1967-11-04 DE DE19671667462 patent/DE1667462A1/de active Pending
- 1967-11-06 NL NL6715061A patent/NL6715061A/xx unknown
- 1967-11-07 NO NO170423A patent/NO121719B/no unknown
- 1967-11-07 ES ES346854A patent/ES346854A1/es not_active Expired
- 1967-11-07 BE BE706192D patent/BE706192A/xx unknown
- 1967-11-07 SE SE15235/67A patent/SE333359B/xx unknown
- 1967-11-07 GB GB50575/67A patent/GB1201200A/en not_active Expired
- 1967-11-08 FR FR127415A patent/FR1543753A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES346854A1 (es) | 1969-01-16 |
| BE706192A (hu) | 1968-03-18 |
| US3552918A (en) | 1971-01-05 |
| FR1543753A (fr) | 1968-10-25 |
| GB1201200A (en) | 1970-08-05 |
| DE1667462A1 (de) | 1971-06-09 |
| NL6715061A (hu) | 1968-05-09 |
| SE333359B (hu) | 1971-03-15 |
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