CS200462B2 - Method of producing phosphoric acid by wet process - Google Patents
Method of producing phosphoric acid by wet process Download PDFInfo
- Publication number
- CS200462B2 CS200462B2 CS737666A CS766673A CS200462B2 CS 200462 B2 CS200462 B2 CS 200462B2 CS 737666 A CS737666 A CS 737666A CS 766673 A CS766673 A CS 766673A CS 200462 B2 CS200462 B2 CS 200462B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- additive
- crystals
- phosphoric acid
- added
- liquor
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F15/00—Other methods of preventing corrosion or incrustation
- C23F15/005—Inhibiting incrustation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0288—Applications, solvents
-
- 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
- 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
- C01B25/2235—Anhydrite processes
-
- 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
- C01B25/226—Hemihydrate process
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Detergent Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5145472A GB1451608A (en) | 1972-11-08 | 1972-11-08 | Process for reducing calcium sulphate scale formation |
Publications (1)
Publication Number | Publication Date |
---|---|
CS200462B2 true CS200462B2 (en) | 1980-09-15 |
Family
ID=10460097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS737666A CS200462B2 (en) | 1972-11-08 | 1973-11-08 | Method of producing phosphoric acid by wet process |
Country Status (22)
Country | Link |
---|---|
US (1) | US3972981A (zh) |
JP (2) | JPS594379B2 (zh) |
AT (1) | AT363910B (zh) |
BE (1) | BE806533A (zh) |
BR (1) | BR7308671D0 (zh) |
CA (1) | CA1032731A (zh) |
CS (1) | CS200462B2 (zh) |
DD (1) | DD111883A5 (zh) |
DE (1) | DE2355607A1 (zh) |
ES (1) | ES420313A1 (zh) |
FR (1) | FR2205479B1 (zh) |
GB (1) | GB1451608A (zh) |
HU (1) | HU168213B (zh) |
IN (1) | IN141012B (zh) |
IT (1) | IT1012092B (zh) |
NL (1) | NL7314813A (zh) |
OA (1) | OA04514A (zh) |
PL (1) | PL102163B1 (zh) |
RO (1) | RO63885A (zh) |
SE (2) | SE389092B (zh) |
SU (1) | SU695549A3 (zh) |
ZA (1) | ZA738038B (zh) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4049774A (en) * | 1970-11-12 | 1977-09-20 | Fisons Limited | Process for reducing formation of gypsum scale durng the washing of calcium sulphate hemihydrate crystals |
US4221769A (en) * | 1972-11-08 | 1980-09-09 | Fisons Limited | Process for preventing the formation of calcium sulphate scale |
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 |
US4332779A (en) * | 1980-11-24 | 1982-06-01 | American Cyanamid Company | Phosphoric acid filtration process |
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 |
US20090294372A1 (en) * | 2008-05-30 | 2009-12-03 | Gill Jasbir S | Inhibition of water formed scale in acid conditions |
US20090294373A1 (en) * | 2008-05-30 | 2009-12-03 | Gill Jasbir S | Inhibition of water formed scale in acid conditions |
US9242863B2 (en) * | 2009-09-25 | 2016-01-26 | Cytec Technology Corp. | Process and reagents for the inhibition or reduction of scale formation during phosphoric acid production |
EA028289B1 (ru) * | 2009-09-25 | 2017-10-31 | Сайтек Текнолоджи Корп. | Предотвращение или снижение образования твердых отложений в производстве фосфорной кислоты мокрым способом |
EA027667B1 (ru) * | 2009-09-25 | 2017-08-31 | Сайтек Текнолоджи Корп. | Способ ингибирования или уменьшения образования отложений во время получения фосфорной кислоты |
US8900539B2 (en) | 2011-03-22 | 2014-12-02 | Cytec Technology Corp. | Preventing or reducing scale in wet-process phosphoric acid production |
AP2016009349A0 (en) | 2014-02-11 | 2016-07-31 | Cytec Ind Inc | Primary amine-containing polymers useful as scale inhibitors |
MA40798A1 (fr) | 2015-02-11 | 2018-05-31 | Cytec Ind Inc | Amines modifiées utiles comme inhibiteurs d'incrustations dans une production d'acide phosphorique par voie humide |
US10759662B2 (en) * | 2018-03-12 | 2020-09-01 | Solenis Technologies, L.P. | Systems and methods for reducing formation of scale in phosphoric acid production |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2448218A (en) * | 1942-12-17 | 1948-08-31 | British Plaster Board Ltd | Manufacture of plaster of paris |
US2968528A (en) * | 1957-07-01 | 1961-01-17 | Int Minerals & Chem Corp | Process for producing clarified phosphoric acid |
GB1011163A (en) * | 1961-04-26 | 1965-11-24 | Dorr Oliver Inc | Manufacture of phosphoric acid |
US3238142A (en) * | 1963-10-16 | 1966-03-01 | American Cyanamid Co | Antifoaming composition |
GB1113922A (en) * | 1964-08-19 | 1968-05-15 | Fisons Ltd | Clarifying phosphoric acid |
DE1238374B (de) * | 1965-04-24 | 1967-04-06 | Giulini Ges Mit Beschraenkter | Verfahren zur Herstellung von alpha-Calciumsulfat-Halbhydrat |
US3397956A (en) * | 1966-07-28 | 1968-08-20 | Nalco Chemical Co | Process for manufacturing phosphoric acid |
US3594123A (en) * | 1967-08-10 | 1971-07-20 | Arizona Chem | Enhancement of gypsum crystal growth in wet-process phosphoric acid |
US3598755A (en) * | 1968-07-05 | 1971-08-10 | Continental Oil Co | Foam control agents |
CA880214A (en) * | 1968-07-10 | 1971-09-07 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Recovering phosphoric acid |
US3645677A (en) * | 1968-09-24 | 1972-02-29 | Taki Fertilizer Mfg Co Ltd | Production of gypsum |
US3554694A (en) * | 1969-06-02 | 1971-01-12 | Cities Service Co | Process for producing fluosilicates |
DE2035505C3 (de) * | 1970-07-17 | 1974-06-12 | Knapsack Ag, 5033 Huerth-Knapsack | Verfahren zur Herstellung reiner Alkaliphosphatlösungen |
US3714330A (en) * | 1970-08-14 | 1973-01-30 | Cities Service Co | Treatment of phosphoric acid to recover alkali metal fluosilicates |
US3796790A (en) * | 1972-04-25 | 1974-03-12 | Canadian Patents Dev | Process for recovering concentrated phosphoric acid |
-
1972
- 1972-11-08 GB GB5145472A patent/GB1451608A/en not_active Expired
-
1973
- 1973-10-16 ZA ZA00738038A patent/ZA738038B/xx unknown
- 1973-10-25 US US05/409,366 patent/US3972981A/en not_active Expired - Lifetime
- 1973-10-25 BE BE137083A patent/BE806533A/xx not_active IP Right Cessation
- 1973-10-29 NL NL7314813A patent/NL7314813A/xx not_active Application Discontinuation
- 1973-10-29 AT AT0911973A patent/AT363910B/de not_active IP Right Cessation
- 1973-10-30 CA CA184,624A patent/CA1032731A/en not_active Expired
- 1973-11-02 IN IN2421/CAL/1973A patent/IN141012B/en unknown
- 1973-11-06 RO RO7376545A patent/RO63885A/ro unknown
- 1973-11-06 HU HUFI549A patent/HU168213B/hu unknown
- 1973-11-06 SU SU731967924A patent/SU695549A3/ru active
- 1973-11-06 DD DD174483A patent/DD111883A5/xx unknown
- 1973-11-07 PL PL1973166379A patent/PL102163B1/pl unknown
- 1973-11-07 ES ES420313A patent/ES420313A1/es not_active Expired
- 1973-11-07 DE DE19732355607 patent/DE2355607A1/de not_active Withdrawn
- 1973-11-07 FR FR7339491A patent/FR2205479B1/fr not_active Expired
- 1973-11-07 SE SE7315123A patent/SE389092B/xx unknown
- 1973-11-07 BR BR8671/73A patent/BR7308671D0/pt unknown
- 1973-11-08 JP JP48125040A patent/JPS594379B2/ja not_active Expired
- 1973-11-08 IT IT7331058A patent/IT1012092B/it active
- 1973-11-08 CS CS737666A patent/CS200462B2/cs unknown
- 1973-11-28 OA OA55072A patent/OA04514A/xx unknown
-
1976
- 1976-01-09 SE SE7600174A patent/SE414164B/xx unknown
-
1983
- 1983-09-27 JP JP58177201A patent/JPS59152211A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
SE414164B (sv) | 1980-07-14 |
OA04514A (fr) | 1980-03-30 |
ZA738038B (en) | 1975-03-26 |
US3972981A (en) | 1976-08-03 |
AU6203673A (en) | 1975-05-01 |
CA1032731A (en) | 1978-06-13 |
BR7308671D0 (pt) | 1974-08-22 |
IN141012B (zh) | 1977-01-08 |
JPS49134590A (zh) | 1974-12-25 |
PL102163B1 (pl) | 1979-03-31 |
JPS59152211A (ja) | 1984-08-30 |
DE2355607A1 (de) | 1974-05-16 |
SU695549A3 (ru) | 1979-10-30 |
GB1451608A (en) | 1976-10-06 |
AT363910B (de) | 1981-09-10 |
JPS594379B2 (ja) | 1984-01-30 |
BE806533A (fr) | 1974-04-25 |
FR2205479B1 (zh) | 1976-11-19 |
ES420313A1 (es) | 1976-03-16 |
FR2205479A1 (zh) | 1974-05-31 |
DD111883A5 (zh) | 1975-03-12 |
ATA911973A (de) | 1981-02-15 |
SE389092B (sv) | 1976-10-25 |
IT1012092B (it) | 1977-03-10 |
SE7600174L (sv) | 1976-01-09 |
HU168213B (zh) | 1976-03-28 |
NL7314813A (zh) | 1974-05-10 |
RO63885A (fr) | 1979-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CS200462B2 (en) | Method of producing phosphoric acid by wet process | |
US4632810A (en) | Method for treating waste gas to separate and recover gypsum and dust therein | |
US4221769A (en) | Process for preventing the formation of calcium sulphate scale | |
CN105036101A (zh) | 半水-二水法湿法磷酸生产工艺及其系统 | |
AU633505B2 (en) | Dewatering of alumina trihydrate filter cakes | |
US4049774A (en) | Process for reducing formation of gypsum scale durng the washing of calcium sulphate hemihydrate crystals | |
US4436643A (en) | Regeneration of aqueous degreasing and cleaning solutions | |
US20150328645A1 (en) | Method for separating calcium carbonate and gypsum | |
US4220630A (en) | Hemihydrate type process for phosphoric acid manufacture using additive to improve filterability | |
US2122900A (en) | Method of and apparatus for dissolving soluble solid materials | |
FI65215C (fi) | Foerfarande och anordning foer framstaellning av alkoholhaltiga fosforsyraloesningar av sura fosfat | |
US4501670A (en) | Recovery of oil and sulfonate from filter cake | |
US4196172A (en) | Hemihydrate type phosphoric acid process | |
US4260584A (en) | Apparatus useful for wet process phosphoric acid production | |
US4082836A (en) | Process for the purification of phosphoric acid by extraction | |
CN1321057C (zh) | 一种改善二水物湿法磷酸生产的方法 | |
US1687703A (en) | Process for the production of clear brine or other liquors | |
US4313915A (en) | Method for the manufacture of phosphoric acid by the wet process | |
BR112019027874A2 (pt) | processo para tratar minérios não sulfídicos carbonáticos com uma composição coletora, composição coletora para uso em processo e polpa | |
RU2166476C2 (ru) | Способ очистки экстракционной фосфорной кислоты | |
RU2008254C1 (ru) | Способ получения экстракционной фосфорной кислоты и устройство для его осуществления | |
SU1298190A1 (ru) | Способ получени фосфорной кислоты | |
SU1057530A1 (ru) | Моющее средство "РОМ-ац-1" дл очистки ацетатцеллюлозных мембран | |
RU2087571C1 (ru) | Способ извлечения ванадия из ванадийсодержащего шлака и линия для его осуществления | |
RU2042612C1 (ru) | Способ получения фосфорной кислоты |