|
US3367749A
(en)
*
|
1963-02-20 |
1968-02-06 |
Monsanto Co |
Purifying phosphoric acid using an amine extractant
|
|
US3437454A
(en)
*
|
1966-04-26 |
1969-04-08 |
Kerr Mc Gee Chem Corp |
Vanadium recovery from wet process phosphoric acid using alpha-hydroxy oximes
|
|
FR1531487A
(fr)
*
|
1967-05-11 |
1968-07-05 |
Pechiney Saint Gobain |
Procédé continu perfectionné de purification de l'acide phosphorique par les solvants
|
|
US3506398A
(en)
*
|
1968-11-06 |
1970-04-14 |
Monsanto Co |
Purification of phosphate values with respect to iron
|
|
US3661513A
(en)
*
|
1970-08-14 |
1972-05-09 |
Cities Service Co |
Manufacture of alkali metal phosphates
|
|
US3734696A
(en)
*
|
1970-09-04 |
1973-05-22 |
Kerr Mc Gee Chem Corp |
Vanadium recovery from acidic solutions
|
|
US3991165A
(en)
*
|
1973-06-23 |
1976-11-09 |
Occidental Petroleum Corporation |
Process for the purification of phosphoric acid using amines
|
|
US3911087A
(en)
*
|
1973-10-19 |
1975-10-07 |
Freeport Minerals Co |
Selective solvent extraction of sulfate impurities from phosphoric acid
|
|
US4108963A
(en)
*
|
1974-06-25 |
1978-08-22 |
Produits Chimiques Ugine Kuhlmann |
Process for purifying phosphoric acid
|
|
FR2281892A1
(fr)
*
|
1974-08-13 |
1976-03-12 |
Rhone Poulenc Ind |
Procede de defluoration d'acide phosphorique
|
|
US3969483A
(en)
*
|
1974-11-07 |
1976-07-13 |
Tennessee Valley Authority |
Removal of carbonaceous matter from ammonium polyphosphate liquids
|
|
US3972982A
(en)
*
|
1975-03-03 |
1976-08-03 |
Monsanto Company |
Process for removing fluorine compounds from phosphoric acid
|
|
US4082836A
(en)
*
|
1975-07-02 |
1978-04-04 |
Occidental Petroleum Corporation |
Process for the purification of phosphoric acid by extraction
|
|
USRE31629E
(en)
*
|
1976-05-20 |
1984-07-10 |
Occidental Petroleum Corporation |
Extraction process for purification of phosphoric acid
|
|
US4053564A
(en)
*
|
1976-05-20 |
1977-10-11 |
Occidental Petroleum Company |
Extraction process for purification of phosphoric acid
|
|
US4285924A
(en)
*
|
1979-04-04 |
1981-08-25 |
National Research Development Corp. |
Separation of acids
|
|
DE2952475C2
(de)
*
|
1979-12-27 |
1982-07-15 |
Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim |
Verfahren zur Gewinnung von Uranverbindungen aus wäßriger Uran enthaltender Phosphorsäure
|
|
DE2952476C2
(de)
*
|
1979-12-27 |
1982-08-19 |
Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim |
Verfahren zur Gewinnung von Uranverbindungen aus wäßriger Uran enthaltender Phosphorsäure
|
|
IL63097A0
(en)
*
|
1981-06-15 |
1981-09-13 |
Yissum Res Dev Co |
A process and extractant for removing fluorine compounds from aqueous phosphoric acid
|
|
FR2520342A1
(fr)
*
|
1982-01-25 |
1983-07-29 |
Rhone Poulenc Chim Base |
Procede de purification d'acide phosphorique de voie humide
|
|
DE3327394A1
(de)
*
|
1982-05-18 |
1985-02-14 |
Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim |
Verfahren zum entfernen von cadmium aus sauren, insbesondere p(pfeil abwaerts)2(pfeil abwaerts)o(pfeil abwaerts)5(pfeil abwaerts)-haltigen loesungen
|
|
DE3218599A1
(de)
*
|
1982-05-18 |
1983-12-01 |
Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim |
Verfahren zum entfernen von cadmium aus sauren, insbesondere p(pfeil abwaerts)2(pfeil abwaerts)0(pfeil abwaerts)5(pfeil abwaerts)-haltigen loesungen
|
|
DE3311245A1
(de)
*
|
1983-03-28 |
1984-10-04 |
Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim |
Verfahren zur abtrennung von uran aus phosphorsaeuren
|
|
DE3330224A1
(de)
*
|
1983-08-22 |
1985-03-14 |
Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim |
Verfahren zur entfernung von cadmium und zink aus sauren phosphat- und nitrathaltigen loesungen
|
|
DE3341073A1
(de)
*
|
1983-11-12 |
1985-05-23 |
Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim |
Verfahren zur gleichzeitigen abtrennung von cadmium-ii- und uran iv- ionen aus phosphorsaeure durch gemeinsame extraktion
|
|
US4543239A
(en)
*
|
1984-08-21 |
1985-09-24 |
International Minerals & Chemical Corp. |
Phosphoric acid extraction process
|
|
US5006319A
(en)
*
|
1988-03-04 |
1991-04-09 |
Fmc Corporation |
Process for removing iron, chromium and vanadium from phosphoric acid
|
|
DE3906633A1
(de)
*
|
1989-03-02 |
1990-09-06 |
Basf Ag |
Verfahren zur abtrennung von phosphorsaeure aus waessrigen loesungen von thiaminphosphaten
|
|
DE4010778A1
(de)
*
|
1989-05-26 |
1990-11-29 |
Budenheim Rud A Oetker Chemie |
Verbessertes verfahren zum entfernen von cadmium-ionen aus nassverfahrensphosphorsaeure
|
|
CA2679068A1
(en)
|
2007-03-15 |
2008-09-18 |
Hcl Cleantech Ltd. |
A process for the recovery of hcl from a dilute solution thereof
|
|
WO2010026572A1
(en)
|
2008-09-02 |
2010-03-11 |
Hcl Cleantech Ltd. |
A process for the production of hcl gas from chloride salts and for the production of carbohydrates
|
|
IL195646A0
(en)
|
2008-12-02 |
2009-09-01 |
Aharon Eyal |
A process for the recovery of hydrochloric acid
|
|
SI2435364T1
(sl)
*
|
2009-05-27 |
2015-08-31 |
Easymining Sweeden Ab |
Proizvodnja amonijevih fosfatov
|
|
DE102016212242B4
(de)
|
2016-07-05 |
2019-02-07 |
Technische Universität Bergakademie Freiberg |
Verfahren zur Herstellung von Phosphorsäure aus phosphorhaltigen Primär- und Sekundärrohstoffen
|
|
CN106348273B
(zh)
*
|
2016-08-17 |
2018-01-09 |
湖北三宁化工股份有限公司 |
一种盐酸法制工业磷酸的萃取剂及其萃取方法
|
|
WO2020169708A1
(en)
|
2019-02-21 |
2020-08-27 |
Universiteit Van Amsterdam |
Process for recovering phosphoric acid from solid phosphorus sources
|
