GB1250191A - - Google Patents
Info
- Publication number
- GB1250191A GB1250191A GB1250191DA GB1250191A GB 1250191 A GB1250191 A GB 1250191A GB 1250191D A GB1250191D A GB 1250191DA GB 1250191 A GB1250191 A GB 1250191A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gypsum
- caso
- filtration
- phosphoric acid
- aqueous solution
- 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 abstract 4
- 229910052602 gypsum Inorganic materials 0.000 abstract 4
- 239000010440 gypsum Substances 0.000 abstract 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 2
- 235000011132 calcium sulphate Nutrition 0.000 abstract 1
- 239000001175 calcium sulphate Substances 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 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)
- Adhesives Or Adhesive Processes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3198268 | 1968-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1250191A true GB1250191A (en:Method) | 1971-10-20 |
Family
ID=10331279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1250191D Expired GB1250191A (en:Method) | 1968-07-04 | 1968-07-04 |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5417597B1 (en:Method) |
| AT (1) | AT301486B (en:Method) |
| BE (1) | BE735078A (en:Method) |
| BR (1) | BR6910443D0 (en:Method) |
| DE (1) | DE1933692B2 (en:Method) |
| ES (1) | ES369090A2 (en:Method) |
| FR (1) | FR2012292A6 (en:Method) |
| GB (1) | GB1250191A (en:Method) |
| NL (1) | NL6910092A (en:Method) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309395A (en) * | 1980-04-21 | 1982-01-05 | Hauge Douglas O | Phosphoric acid production |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4029743A (en) * | 1975-12-24 | 1977-06-14 | Hauge Douglas O | Phosphoric acid manufacture |
| US4424196A (en) * | 1982-06-29 | 1984-01-03 | United States Gypsum Company | Phosphohemihydrate process for purification of gypsum |
| US4853201A (en) * | 1988-07-11 | 1989-08-01 | Occidental Chemical Corporation | Recovery of P2 O5 values from phosphoric acid hemihydrate crystals |
| DE19817245A1 (de) * | 1998-04-18 | 1999-10-28 | Loh Kg Rittal Werk | Schaltschrank |
| DE102016212242B4 (de) | 2016-07-05 | 2019-02-07 | Technische Universität Bergakademie Freiberg | Verfahren zur Herstellung von Phosphorsäure aus phosphorhaltigen Primär- und Sekundärrohstoffen |
-
1968
- 1968-07-04 GB GB1250191D patent/GB1250191A/en not_active Expired
-
1969
- 1969-06-24 BE BE735078D patent/BE735078A/xx not_active IP Right Cessation
- 1969-07-01 AT AT627669A patent/AT301486B/de not_active IP Right Cessation
- 1969-07-01 NL NL6910092A patent/NL6910092A/xx unknown
- 1969-07-03 FR FR6922500A patent/FR2012292A6/fr not_active Expired
- 1969-07-03 DE DE19691933692 patent/DE1933692B2/de not_active Withdrawn
- 1969-07-03 ES ES369090A patent/ES369090A2/es not_active Expired
- 1969-07-04 BR BR21044369A patent/BR6910443D0/pt unknown
- 1969-07-04 JP JP5253869A patent/JPS5417597B1/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309395A (en) * | 1980-04-21 | 1982-01-05 | Hauge Douglas O | Phosphoric acid production |
Also Published As
| Publication number | Publication date |
|---|---|
| BE735078A (en:Method) | 1969-12-24 |
| JPS5417597B1 (en:Method) | 1979-06-30 |
| DE1933692A1 (de) | 1970-01-15 |
| DE1933692B2 (de) | 1977-06-16 |
| FR2012292A6 (en:Method) | 1970-03-20 |
| AT301486B (de) | 1972-09-11 |
| ES369090A2 (es) | 1976-11-16 |
| BR6910443D0 (pt) | 1973-05-31 |
| NL6910092A (en:Method) | 1970-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1496683A (en) | Manufacture of calcium sulphate alphahemihydrate | |
| JPS5221296A (en) | Producing method of concentrated phosphoric acid containing gypsum hem ihydrate which can be easily filtrated | |
| ES346854A1 (es) | Un procedimiento para la produccion de acido fosforico. | |
| GB1420568A (en) | Production of synthetic fluorspar | |
| BR7308671D0 (pt) | Um processo para a lavagem de cristais de cristais de anidrita de sulfato de acido e/ou hemihidrato de sulfato de calcio, processo para a producao de acido fosforico pelo processo a umido de bloco de valvula | |
| GB1250191A (en:Method) | ||
| CA951493A (en) | Process for the production of neutral calcium hypochlorite crystals | |
| GB1328357A (en) | Wet process for the manufacture of phosphoric acid and caldium sulphate | |
| ES310273A1 (es) | Procedimiento para la purificacion del yeso residual de la fabricacion de acido fosforico por ataque sulfurico de fosfatos naturales | |
| GB1481788A (en) | Production of shaped gypsum articles | |
| ES330957A1 (es) | Un procedimiento continuo para la preparacion de acido fosforico y yeso. | |
| ES8104789A1 (es) | Procedimiento para la separacion de leucina, isoleucina y valina | |
| GB1268396A (en) | Anhydrous calcium sulphate and calcium sulphate semihydrate | |
| GB1184585A (en) | A Method for Manufacturing Pure Gypsum. | |
| ES310115A1 (es) | Un procedimiento para la produccion de acido fosforico y de cristales de yeso. | |
| GB1175577A (en) | A Process for Preparing Phosphoric Acid | |
| SU376422A1 (ru) | Способ получения выпускной формы 1-лмино-2-наф- тол-4-сульфокислоты | |
| JPS52794A (en) | Process for production of high quality gypsum | |
| JPS51136572A (en) | Crystallization reaction apparatus | |
| GB1155957A (en) | Phosphoric Acid Purification Process. | |
| GB1398331A (en) | Preparation of phosphoric acid by the wet process | |
| JPS5212146A (en) | Process for preparation of p- acetylaminobenzene-sufonylchloride | |
| AU1431670A (en) | Method of producing calcium sulphate hemihydrate from contaiminated types of gypsum, particularly phosphoric acid waste gypsum | |
| SU526594A1 (ru) | Способ получени фосфорной кислоты | |
| AT298413B (de) | Verfahren zur Abtrennung und Gewinnung von Fluorverbindungen aus durch Schwefelsäureaufschluß von natürlichem Calciumphosphat erhaltenem Gips |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |