NL6806472A - - Google Patents
Info
- Publication number
- NL6806472A NL6806472A NL6806472A NL6806472A NL6806472A NL 6806472 A NL6806472 A NL 6806472A NL 6806472 A NL6806472 A NL 6806472A NL 6806472 A NL6806472 A NL 6806472A NL 6806472 A NL6806472 A NL 6806472A
- Authority
- NL
- Netherlands
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
- C01B25/234—Purification; Stabilisation; Concentration
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR106037A FR1531487A (fr) | 1967-05-11 | 1967-05-11 | Procédé continu perfectionné de purification de l'acide phosphorique par les solvants |
Publications (2)
Publication Number | Publication Date |
---|---|
NL6806472A true NL6806472A (nl) | 1968-11-12 |
NL159634B NL159634B (nl) | 1979-03-15 |
Family
ID=8630653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL6806472.A NL159634B (nl) | 1967-05-11 | 1968-05-08 | Continue werkwijze voor het extraheren van fosforzuur uit een onzuivere fosforzuuroplossing. |
Country Status (7)
Country | Link |
---|---|
US (1) | US3607029A (nl) |
BE (1) | BE714875A (nl) |
DE (1) | DE1767442C3 (nl) |
FR (1) | FR1531487A (nl) |
GB (1) | GB1210446A (nl) |
IL (1) | IL29971A (nl) |
NL (1) | NL159634B (nl) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2229602B1 (de) * | 1972-06-19 | 1973-09-27 | Chemische Fabrik Budenheim, Rudolf A. Oetker, 6501 Budenheim | Verfahren zur Reinigung von technischer Phosphorsaure |
JPS4995894A (nl) * | 1973-01-19 | 1974-09-11 | ||
LU66958A1 (nl) * | 1973-02-02 | 1974-09-25 | ||
US4118462A (en) * | 1974-02-01 | 1978-10-03 | Rhone-Poulenc Industries | Process for the preparation of purified phosphoric solutions from phosphoric acid |
FR2276262A1 (fr) * | 1974-06-25 | 1976-01-23 | Ugine Kuhlmann | Procede de purification d'acide phosphorique |
US4108963A (en) * | 1974-06-25 | 1978-08-22 | Produits Chimiques Ugine Kuhlmann | Process for purifying phosphoric acid |
DE2433307C3 (de) * | 1974-07-11 | 1984-03-22 | Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim | Verfahren zur Abtrennung eines Phosphorsäure-organisches Lösungsmittel-Wasser-Gemisches |
DE2435789C3 (de) * | 1974-07-25 | 1984-06-20 | Hoechst Ag, 6230 Frankfurt | Verfahren zur Reinigung von Phosphorsäure mit Hilfe von 3-Methoxybutanol |
FR2281892A1 (fr) * | 1974-08-13 | 1976-03-12 | Rhone Poulenc Ind | Procede de defluoration d'acide phosphorique |
US4203956A (en) * | 1976-02-10 | 1980-05-20 | Hoechst Aktiengesellschaft | Process and apparatus for recovering alcoholic phosphoric acid solutions from acid phosphates |
FR2391954A2 (fr) * | 1977-05-23 | 1978-12-22 | Rhone Poulenc Ind | Procede de purification d'un acide phosphorique de voie humide |
FR2437377A1 (fr) * | 1978-09-29 | 1980-04-25 | Rhone Poulenc Ind | Procede d'obtention d'un acide phosphorique desulfate pour usage alimentaire |
US4197280A (en) * | 1978-10-02 | 1980-04-08 | Stauffer Chemical Company | Wet process phosphoric acid purification |
FR2447348A1 (fr) * | 1979-01-24 | 1980-08-22 | Rhone Poulenc Ind | Procede de purification d'un acide phosphorique impur |
US4327061A (en) * | 1979-02-21 | 1982-04-27 | Kerr-Mcgee Chemical Corporation | Method of stabilizing wet process phosphoric acid for solvent extraction |
DE2945874A1 (de) * | 1979-11-14 | 1981-05-27 | Hoechst Ag, 6000 Frankfurt | Verfahren zur reinigung von nassverfahrenphosphorsaeure |
FR2470090B1 (fr) * | 1979-11-20 | 1986-04-04 | Rhone Poulenc Chim Base | Procede de purification d'un acide phosphorique de voie humide |
JPS56100117A (en) * | 1980-01-14 | 1981-08-11 | Toyo Soda Mfg Co Ltd | Purifying method for wet process phosphoric acid |
NL8002462A (nl) * | 1980-04-26 | 1981-11-16 | Stamicarbon | Werkwijze voor het winnen van yttrium en lanthaniden uit natproces fosforzuur. |
JPS5933527B2 (ja) * | 1980-11-29 | 1984-08-16 | 東ソー株式会社 | リン酸の溶媒抽出法 |
FR2520342A1 (fr) * | 1982-01-25 | 1983-07-29 | Rhone Poulenc Chim Base | Procede de purification d'acide phosphorique de voie humide |
US4676963A (en) * | 1986-05-09 | 1987-06-30 | Fmc Corporation | Manufacture of sodium tripolyphosphate from wet acid |
US4780295A (en) * | 1987-07-06 | 1988-10-25 | Fmc Corporation | Process for purifying phosphoric acid |
FR2677345B1 (fr) * | 1991-06-04 | 1993-12-24 | Commissariat A Energie Atomique | Procede de purification et de recuperation d'acide orthophosphorique par extraction liquide-liquide. |
DE69210816T2 (de) * | 1992-07-31 | 1997-01-02 | Foret Sa | Verfahren zur Entfernung von abgelagerten Verunreinigungen in einem organischen Strom zur Erzeugung reiner Phosphorsäure |
RU2452685C1 (ru) * | 2011-04-05 | 2012-06-10 | Открытое акционерное общество (ОАО) "Мелеузовские минеральные удобрения" | Способ очистки экстракционной фосфорной кислоты |
CN102583283B (zh) * | 2012-01-13 | 2013-07-10 | 四川大学 | 一种熔融结晶法制备电子级磷酸的方法 |
CN103482594A (zh) * | 2013-09-12 | 2014-01-01 | 瓮福(集团)有限责任公司 | 一种降低湿法磷酸萃取槽硫酸钙过饱和度磷矿的加入方法 |
DE102016212242B4 (de) | 2016-07-05 | 2019-02-07 | Technische Universität Bergakademie Freiberg | Verfahren zur Herstellung von Phosphorsäure aus phosphorhaltigen Primär- und Sekundärrohstoffen |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1929443A (en) * | 1930-08-26 | 1933-10-10 | American Agricultural Chem Co | Process for obtaining alkali metal phosphates |
US3072461A (en) * | 1960-07-29 | 1963-01-08 | Dow Chemical Co | Preparation of phosphoric acid |
US3259472A (en) * | 1961-10-30 | 1966-07-05 | Andrew C Rice | Fraction separation of aqueous rare earths using amines |
US3367749A (en) * | 1963-02-20 | 1968-02-06 | Monsanto Co | Purifying phosphoric acid using an amine extractant |
NL298968A (nl) * | 1963-10-08 | |||
US3388967A (en) * | 1964-07-20 | 1968-06-18 | Cominco Ltd Cominco Ltee | Phosphoric acid purification |
US3375068A (en) * | 1965-03-01 | 1968-03-26 | St Paul Ammonia Products Inc | Phosphoric acid extraction |
US3410656A (en) * | 1966-06-01 | 1968-11-12 | Fmc Corp | Phosphoric acid purification |
-
1967
- 1967-05-11 FR FR106037A patent/FR1531487A/fr not_active Expired
-
1968
- 1968-05-08 NL NL6806472.A patent/NL159634B/nl unknown
- 1968-05-09 US US727950A patent/US3607029A/en not_active Expired - Lifetime
- 1968-05-09 BE BE714875D patent/BE714875A/xx not_active IP Right Cessation
- 1968-05-10 DE DE1767442A patent/DE1767442C3/de not_active Expired
- 1968-05-10 IL IL29971A patent/IL29971A/xx unknown
- 1968-05-10 GB GB22323/68A patent/GB1210446A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IL29971A (en) | 1972-01-27 |
DE1767442C3 (de) | 1978-05-11 |
DE1767442A1 (de) | 1971-09-09 |
GB1210446A (en) | 1970-10-28 |
IL29971A0 (en) | 1968-07-25 |
BE714875A (nl) | 1968-11-12 |
US3607029A (en) | 1971-09-21 |
NL159634B (nl) | 1979-03-15 |
DE1767442B2 (de) | 1977-09-08 |
FR1531487A (fr) | 1968-07-05 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NL80 | Information provided on patent owner name for an already discontinued patent |
Owner name: PECHINEY UCB |