BE714875A - - Google Patents

Info

Publication number
BE714875A
BE714875A BE714875DA BE714875A BE 714875 A BE714875 A BE 714875A BE 714875D A BE714875D A BE 714875DA BE 714875 A BE714875 A BE 714875A
Authority
BE
Belgium
Application number
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of BE714875A publication Critical patent/BE714875A/xx

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)
BE714875D 1967-05-11 1968-05-09 BE714875A (en:Method)

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 (1)

Publication Number Publication Date
BE714875A true BE714875A (en:Method) 1968-11-12

Family

ID=8630653

Family Applications (1)

Application Number Title Priority Date Filing Date
BE714875D BE714875A (en:Method) 1967-05-11 1968-05-09

Country Status (7)

Country Link
US (1) US3607029A (en:Method)
BE (1) BE714875A (en:Method)
DE (1) DE1767442C3 (en:Method)
FR (1) FR1531487A (en:Method)
GB (1) GB1210446A (en:Method)
IL (1) IL29971A (en:Method)
NL (1) NL159634B (en:Method)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
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 (en:Method) * 1973-01-19 1974-09-11
LU66958A1 (en:Method) * 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.
ATE138046T1 (de) * 1992-07-31 1996-06-15 Foret Sa Verfahren zur entfernung von abgelagerten verunreinigungen in einem organischen strom zur erzeugung reiner phosphorsäure
RU2334676C1 (ru) * 2007-02-26 2008-09-27 Открытое акционерное общество "Воскресенский научно-исследовательский институт по удобрениям и фосфорной кислоте (НИУиФ)" Способ контроля степени очистки экстрагента от органических примесей при его регенерации в процессе очистки экстракционной фосфорной кислоты трибутилфосфатом
RU2341450C1 (ru) * 2007-06-18 2008-12-20 Открытое акционерное общество "Научно-исследовательский институт по удобрениям и инсектофунгицидам им. Я.В. Самойлова" Способ очистки экстракционной фосфорной кислоты
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)

* Cited by examiner, † Cited by third party
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 (en:Method) * 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

Also Published As

Publication number Publication date
NL6806472A (en:Method) 1968-11-12
IL29971A (en) 1972-01-27
NL159634B (nl) 1979-03-15
US3607029A (en) 1971-09-21
GB1210446A (en) 1970-10-28
IL29971A0 (en) 1968-07-25
DE1767442A1 (de) 1971-09-09
DE1767442C3 (de) 1978-05-11
FR1531487A (fr) 1968-07-05
DE1767442B2 (de) 1977-09-08

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: UCB (UNION CHIMIQUE-CHEMISCHE BEDRIJVEN) S.A.

Effective date: 19880509