BE768426A - Purification d'acide phosphorique de voie humide - Google Patents

Purification d'acide phosphorique de voie humide

Info

Publication number
BE768426A
BE768426A BE768426A BE768426A BE768426A BE 768426 A BE768426 A BE 768426A BE 768426 A BE768426 A BE 768426A BE 768426 A BE768426 A BE 768426A BE 768426 A BE768426 A BE 768426A
Authority
BE
Belgium
Prior art keywords
phosphoric acid
acid purification
wet phosphoric
wet
purification
Prior art date
Application number
BE768426A
Other languages
English (en)
Original Assignee
Azote & Prod Chim
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
Priority claimed from FR7021581A external-priority patent/FR2093372A5/fr
Priority claimed from FR7108242A external-priority patent/FR2128968A6/fr
Application filed by Azote & Prod Chim filed Critical Azote & Prod Chim
Publication of BE768426A publication Critical patent/BE768426A/fr

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)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE768426A 1970-06-12 1971-06-11 Purification d'acide phosphorique de voie humide BE768426A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7021581A FR2093372A5 (en) 1970-06-12 1970-06-12 Purification of wet-process phosphoric acid - by extraction - with part water-misc organic solvent
FR7108242A FR2128968A6 (en) 1971-03-10 1971-03-10 Purification of wet-process phosphoric acid - by extraction - with part water-misc organic solvent

Publications (1)

Publication Number Publication Date
BE768426A true BE768426A (fr) 1971-12-13

Family

ID=26215792

Family Applications (1)

Application Number Title Priority Date Filing Date
BE768426A BE768426A (fr) 1970-06-12 1971-06-11 Purification d'acide phosphorique de voie humide

Country Status (7)

Country Link
BE (1) BE768426A (fr)
DE (1) DE2127141C3 (fr)
FI (1) FI54908C (fr)
GB (1) GB1357614A (fr)
NL (1) NL157578B (fr)
NO (1) NO132389C (fr)
SE (1) SE366972B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2657190C2 (de) * 1976-12-17 1982-11-04 Hoechst Ag, 6000 Frankfurt Verfahren zur Reinigung von Naßverfahrensphosphorsäure
DE2657189B2 (de) * 1976-12-17 1980-02-07 Hoechst Ag, 6000 Frankfurt Verfahren zur Reinigung von NaBverfahrensphosphorsäure
DE2926943A1 (de) * 1979-07-04 1981-01-29 Hoechst Ag Verfahren zur reinigung von nassverfahrensphosphorsaeure
DE2945874A1 (de) * 1979-11-14 1981-05-27 Hoechst Ag, 6000 Frankfurt Verfahren zur reinigung von nassverfahrenphosphorsaeure
CA2431659C (fr) 2000-12-29 2015-02-10 Gray Matter Holdings, Llc Dispositif de protection pour les oreilles
RU2452685C1 (ru) * 2011-04-05 2012-06-10 Открытое акционерное общество (ОАО) "Мелеузовские минеральные удобрения" Способ очистки экстракционной фосфорной кислоты

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1838431A (en) * 1930-08-26 1931-12-29 American Agricultural Chem Co Process for obtaining orthophosphoric acid and/or conversion products thereof
DE884358C (de) * 1951-09-20 1953-07-27 Gerardo Collardin Verfahren zur Reinigung von technischer Phosphorsaeure
US2885265A (en) * 1955-06-21 1959-05-05 Horizons Inc Process for producing substantially pure orthophosphoric acid
US3072461A (en) * 1960-07-29 1963-01-08 Dow Chemical Co Preparation of phosphoric acid
NL285346A (fr) * 1962-11-09
DE1217932B (de) * 1963-05-09 1966-06-02 Israel Mining Ind I For Res An Verfahren zur Gewinnung von reiner, konzentrierter Phosphorsaeure
NL6405142A (fr) * 1963-05-09 1964-11-10
US3367738A (en) * 1963-09-23 1968-02-06 Tennessee Corp Process for purifying wet process phosphoric acid with ethyl ether
FR1373614A (fr) * 1963-11-08 1964-09-25 Stamicarbon Procédé pour la séparation de nitrate de chaux et d'acides se trouvant dans une solution qui a été obtenue lors de la décomposition de phosphate brut à l'aide d'acide nitrique, et ensuite la préparation d'acide phosphorique et de phosphates à base de cette séparation
US3466141A (en) * 1966-02-22 1969-09-09 Mini Ind Chimice Process for the production of sodium phosphates
US3574535A (en) * 1967-06-20 1971-04-13 Mini Ind Chimice Process for manufacturing sodium tripolyphosphate

Also Published As

Publication number Publication date
NL157578B (nl) 1978-08-15
DE2127141C3 (de) 1986-03-27
DE2127141B2 (de) 1978-05-03
FI54908B (fi) 1978-12-29
NO132389C (fr) 1975-11-05
NL7107718A (fr) 1971-12-14
FI54908C (fi) 1979-04-10
NO132389B (fr) 1975-07-28
GB1357614A (en) 1974-06-26
DE2127141A1 (de) 1971-12-16
SE366972B (fr) 1974-05-13

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: AZOTE ET PRODUITS CHIMIQUES S.A.

Effective date: 19910611