BE621425A - - Google Patents
Info
- Publication number
- BE621425A BE621425A BE621425DA BE621425A BE 621425 A BE621425 A BE 621425A BE 621425D A BE621425D A BE 621425DA BE 621425 A BE621425 A BE 621425A
- Authority
- BE
- Belgium
Links
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2624162 | 1962-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE621425A true BE621425A (US06244707-20010612-C00011.png) |
Family
ID=12187792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE621425D BE621425A (US06244707-20010612-C00011.png) | 1962-06-23 |
Country Status (8)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3632307A (en) * | 1969-04-09 | 1972-01-04 | Albatros Super Fosfaatfabrieke | Process for the preparation of phosphoric acid and gypsum from phosphate rock |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3416887A (en) * | 1964-08-05 | 1968-12-17 | Central Glass Co Ltd | Method of manufacturing wet process phosphoric acid |
| 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 |
| US3645677A (en) * | 1968-09-24 | 1972-02-29 | Taki Fertilizer Mfg Co Ltd | Production of gypsum |
| US3642456A (en) * | 1969-07-29 | 1972-02-15 | Grace W R & Co | Process for purifying gypsum using fluosilicic acid |
| US3911079A (en) * | 1971-03-23 | 1975-10-07 | Rhone Progil | Method of producing phosphoric acid and calcium sulphate |
| US4048289A (en) * | 1973-12-13 | 1977-09-13 | Fertilizantes Fosfatados Mexicanos, S.A. | Stabilization of wet-process phosphoric acid |
| US4134964A (en) * | 1974-10-04 | 1979-01-16 | Hoechst Aktiengesellschaft | Process and apparatus for purifying wet-processed phosphoric acid |
| AT346223B (de) * | 1974-12-11 | 1978-10-25 | Chemie Linz Ag | Verfahren zur gewinnung von fluorarmem gips als abfallprodukt aus dem nassphosphorsaeureverfahren |
| GB1557663A (en) * | 1975-08-01 | 1979-12-12 | Albright & Wilson | Process for preparing phosphore acid |
| JPS5851884B2 (ja) * | 1975-08-13 | 1983-11-18 | 日産化学工業株式会社 | 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 |
| US4235854A (en) * | 1977-08-25 | 1980-11-25 | Occidental Petroleum Corp. | Method for purifying wet process phosphoric acid |
| US4250155A (en) * | 1978-06-09 | 1981-02-10 | Gardinier, Inc. | Method of purifying phosphoric acid after solvent extraction |
| FR2598402B1 (fr) * | 1986-05-07 | 1990-06-01 | Rhone Poulenc Chimie | Procede de nettoyage de surfaces filtrantes |
| CN110510589A (zh) * | 2019-09-10 | 2019-11-29 | 湖北祥云(集团)化工股份有限公司 | 一种湿法磷酸生产方法及生产系统 |
| CN111732086A (zh) * | 2020-07-31 | 2020-10-02 | 天宝动物营养科技股份有限公司 | 一种半水-二水法制备磷酸联产高纯石膏工艺 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1962887A (en) * | 1931-02-07 | 1934-06-12 | American Cyanamid Co | Method of controlling crystal size |
| US1969449A (en) * | 1931-10-17 | 1934-08-07 | Rumford Chemical Works | Process of producing by-product calcium sulphate |
| US3124419A (en) * | 1961-04-20 | 1964-03-10 | Purification of phosphoric acid | |
| GB1011163A (en) * | 1961-04-26 | 1965-11-24 | Dorr Oliver Inc | Manufacture of phosphoric acid |
-
0
- BE BE621425D patent/BE621425A/xx unknown
- CA CA718837A patent/CA718837A/en not_active Expired
-
1962
- 1962-08-09 DK DK349362AA patent/DK105063C/da active
- 1962-08-10 DE DE19621467092 patent/DE1467092A1/de active Pending
- 1962-08-14 FR FR906943A patent/FR1350642A/fr not_active Expired
- 1962-10-05 GB GB37752/62A patent/GB1016007A/en not_active Expired
- 1962-10-31 ES ES282084A patent/ES282084A1/es not_active Expired
-
1966
- 1966-09-20 US US580833A patent/US3505013A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3632307A (en) * | 1969-04-09 | 1972-01-04 | Albatros Super Fosfaatfabrieke | Process for the preparation of phosphoric acid and gypsum from phosphate rock |
Also Published As
| Publication number | Publication date |
|---|---|
| DK105063C (da) | 1966-08-15 |
| DE1467092A1 (de) | 1969-01-23 |
| FR1350642A (fr) | 1964-01-31 |
| ES282084A1 (es) | 1964-01-01 |
| GB1016007A (en) | 1966-01-05 |
| CA718837A (en) | 1965-09-28 |
| DE1467092B2 (US06244707-20010612-C00011.png) | 1970-08-13 |
| US3505013A (en) | 1970-04-07 |
