DE2636140C2 - Naßverfahren zur Herstellung von Phosphorsäure - Google Patents
Naßverfahren zur Herstellung von PhosphorsäureInfo
- Publication number
- DE2636140C2 DE2636140C2 DE2636140A DE2636140A DE2636140C2 DE 2636140 C2 DE2636140 C2 DE 2636140C2 DE 2636140 A DE2636140 A DE 2636140A DE 2636140 A DE2636140 A DE 2636140A DE 2636140 C2 DE2636140 C2 DE 2636140C2
- Authority
- DE
- Germany
- Prior art keywords
- calcium sulfate
- phosphoric acid
- slurry
- sulfate hemihydrate
- digestion
- 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 claims description 116
- 229910000147 aluminium phosphate Inorganic materials 0.000 title claims description 58
- 238000000034 method Methods 0.000 title claims description 40
- 230000008569 process Effects 0.000 title claims description 32
- 238000004519 manufacturing process Methods 0.000 title description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 74
- 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 59
- 239000002002 slurry Substances 0.000 claims description 51
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 46
- 230000029087 digestion Effects 0.000 claims description 43
- 239000000377 silicon dioxide Substances 0.000 claims description 32
- 239000002367 phosphate rock Substances 0.000 claims description 25
- 235000011149 sulphuric acid Nutrition 0.000 claims description 16
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 3
- 239000001117 sulphuric acid Substances 0.000 claims description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 23
- 238000006243 chemical reaction Methods 0.000 description 20
- 239000013078 crystal Substances 0.000 description 20
- 239000000706 filtrate Substances 0.000 description 17
- 230000036571 hydration Effects 0.000 description 15
- 238000006703 hydration reaction Methods 0.000 description 15
- 238000001914 filtration Methods 0.000 description 14
- 150000004683 dihydrates Chemical class 0.000 description 11
- 239000002253 acid Substances 0.000 description 10
- 239000000047 product Substances 0.000 description 9
- 239000005909 Kieselgur Substances 0.000 description 8
- 238000005406 washing Methods 0.000 description 6
- 238000005054 agglomeration Methods 0.000 description 5
- 230000002776 aggregation Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 101100311330 Schizosaccharomyces pombe (strain 972 / ATCC 24843) uap56 gene Proteins 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000012065 filter cake Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 101150018444 sub2 gene Proteins 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910052925 anhydrite Inorganic materials 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 235000011132 calcium sulphate Nutrition 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910001583 allophane Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 229940062672 calcium dihydrogen phosphate Drugs 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229960001714 calcium phosphate Drugs 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000887 hydrating effect Effects 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000019691 monocalcium phosphate Nutrition 0.000 description 1
- 229910000150 monocalcium phosphate Inorganic materials 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 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 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)
- Silicon Compounds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50098305A JPS5851884B2 (ja) | 1975-08-13 | 1975-08-13 | 濾過性の良好な半水石膏を含有する高濃度燐酸の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2636140A1 DE2636140A1 (de) | 1977-02-24 |
| DE2636140C2 true DE2636140C2 (de) | 1987-04-09 |
Family
ID=14216203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2636140A Expired DE2636140C2 (de) | 1975-08-13 | 1976-08-11 | Naßverfahren zur Herstellung von Phosphorsäure |
Country Status (19)
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4367197A (en) * | 1979-09-18 | 1983-01-04 | J. R. Simplot Company | Method for the control of excessive corrosion in phosphoric acid circuits |
| US4277454A (en) * | 1979-09-18 | 1981-07-07 | J. R. Simplot Company | Methods for the control of excessive corrosion in phosphoric acid circuits |
| DE3117813A1 (de) * | 1981-05-06 | 1982-11-25 | Chemische Werke Hüls AG, 4370 Marl | Verfahren zur herstellung von gipsformsteinen |
| LU84713A1 (fr) * | 1983-03-25 | 1984-11-14 | Prayon Soc | Procede et preparation d'acide phosphorique et de sulfate de calcium hemihydrate alpha |
| FR2598402B1 (fr) * | 1986-05-07 | 1990-06-01 | Rhone Poulenc Chimie | Procede de nettoyage de surfaces filtrantes |
| JPH0620201U (ja) * | 1992-05-13 | 1994-03-15 | 株式会社テイモー | 結束具 |
| US5590983A (en) * | 1995-09-05 | 1997-01-07 | Angell; Edwin C. | Method of improving soil irrigation with an improved solution grade calcium sulfate dihydrate |
| US7582308B2 (en) * | 2002-12-23 | 2009-09-01 | Kimberly-Clark Worldwide, Inc. | Odor control composition |
| US7754197B2 (en) | 2003-10-16 | 2010-07-13 | Kimberly-Clark Worldwide, Inc. | Method for reducing odor using coordinated polydentate compounds |
| US7794737B2 (en) | 2003-10-16 | 2010-09-14 | Kimberly-Clark Worldwide, Inc. | Odor absorbing extrudates |
| US7582485B2 (en) | 2003-10-16 | 2009-09-01 | Kimberly-Clark Worldride, Inc. | Method and device for detecting ammonia odors and helicobacter pylori urease infection |
| US7837663B2 (en) | 2003-10-16 | 2010-11-23 | Kimberly-Clark Worldwide, Inc. | Odor controlling article including a visual indicating device for monitoring odor absorption |
| US7413550B2 (en) | 2003-10-16 | 2008-08-19 | Kimberly-Clark Worldwide, Inc. | Visual indicating device for bad breath |
| US7141518B2 (en) | 2003-10-16 | 2006-11-28 | Kimberly-Clark Worldwide, Inc. | Durable charged particle coatings and materials |
| US7488520B2 (en) | 2003-10-16 | 2009-02-10 | Kimberly-Clark Worldwide, Inc. | High surface area material blends for odor reduction, articles utilizing such blends and methods of using same |
| US7438875B2 (en) * | 2003-10-16 | 2008-10-21 | Kimberly-Clark Worldwide, Inc. | Method for reducing odor using metal-modified silica particles |
| US7879350B2 (en) * | 2003-10-16 | 2011-02-01 | Kimberly-Clark Worldwide, Inc. | Method for reducing odor using colloidal nanoparticles |
| US7678367B2 (en) | 2003-10-16 | 2010-03-16 | Kimberly-Clark Worldwide, Inc. | Method for reducing odor using metal-modified particles |
| US20150175424A1 (en) * | 2013-12-23 | 2015-06-25 | Italo Innamorati | Process for the production of phosphoric acid |
| JP6701209B2 (ja) * | 2015-09-04 | 2020-05-27 | ライオン株式会社 | エトキシル化触媒及びその製造方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1969449A (en) * | 1931-10-17 | 1934-08-07 | Rumford Chemical Works | Process of producing by-product calcium sulphate |
| BE621425A (US07655688-20100202-C00109.png) * | 1962-06-23 | |||
| 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 |
| GB1248037A (en) * | 1968-01-13 | 1971-09-29 | Fisons Ltd | Calcium sulphate |
| GB1278247A (en) * | 1968-11-15 | 1972-06-21 | Fisons Ltd | Phosphoric acid |
-
1975
- 1975-08-13 JP JP50098305A patent/JPS5851884B2/ja not_active Expired
-
1976
- 1976-06-13 TR TR20187A patent/TR20187A/xx unknown
- 1976-08-02 US US05/710,741 patent/US4101638A/en not_active Expired - Lifetime
- 1976-08-03 GB GB32255/76A patent/GB1560546A/en not_active Expired
- 1976-08-05 BE BE169567A patent/BE844897A/xx not_active IP Right Cessation
- 1976-08-07 IN IN1427/CAL/76A patent/IN143813B/en unknown
- 1976-08-10 IT IT50826/76A patent/IT1066381B/it active
- 1976-08-10 AU AU16724/76A patent/AU503183B2/en not_active Expired
- 1976-08-11 DE DE2636140A patent/DE2636140C2/de not_active Expired
- 1976-08-12 NZ NZ181752A patent/NZ181752A/xx unknown
- 1976-08-12 CA CA258,967A patent/CA1067675A/en not_active Expired
- 1976-08-12 MX MX76100501U patent/MX3803E/es unknown
- 1976-08-12 ES ES450636A patent/ES450636A1/es not_active Expired
- 1976-08-12 SU SU762388516A patent/SU867292A3/ru active
- 1976-08-12 SE SE7609051A patent/SE423975B/xx not_active IP Right Cessation
- 1976-08-12 BR BR7605283A patent/BR7605283A/pt unknown
- 1976-08-13 ZA ZA764875A patent/ZA764875B/xx unknown
- 1976-08-13 NL NL7609049A patent/NL7609049A/xx not_active Application Discontinuation
- 1976-08-13 FR FR7624718A patent/FR2320903A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| TR20187A (tr) | 1980-11-01 |
| GB1560546A (en) | 1980-02-06 |
| BR7605283A (pt) | 1977-08-09 |
| FR2320903B1 (US07655688-20100202-C00109.png) | 1981-05-22 |
| ES450636A1 (es) | 1977-12-16 |
| SE423975B (sv) | 1982-06-21 |
| ZA764875B (en) | 1977-07-27 |
| JPS5851884B2 (ja) | 1983-11-18 |
| FR2320903A1 (fr) | 1977-03-11 |
| AU503183B2 (en) | 1979-08-23 |
| MX3803E (es) | 1981-07-22 |
| BE844897A (fr) | 1976-12-01 |
| CA1067675A (en) | 1979-12-11 |
| AU1672476A (en) | 1978-02-16 |
| SU867292A3 (ru) | 1981-09-23 |
| DE2636140A1 (de) | 1977-02-24 |
| US4101638A (en) | 1978-07-18 |
| JPS5221296A (en) | 1977-02-17 |
| IT1066381B (it) | 1985-03-04 |
| SE7609051L (sv) | 1977-02-14 |
| IN143813B (US07655688-20100202-C00109.png) | 1978-02-04 |
| NL7609049A (nl) | 1977-02-15 |
| NZ181752A (en) | 1978-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8339 | Ceased/non-payment of the annual fee |