FR2421845A2 - Procede de purification d'un acide phosphorique de voie humide - Google Patents

Procede de purification d'un acide phosphorique de voie humide

Info

Publication number
FR2421845A2
FR2421845A2 FR7800771A FR7800771A FR2421845A2 FR 2421845 A2 FR2421845 A2 FR 2421845A2 FR 7800771 A FR7800771 A FR 7800771A FR 7800771 A FR7800771 A FR 7800771A FR 2421845 A2 FR2421845 A2 FR 2421845A2
Authority
FR
France
Prior art keywords
phosphoric acid
purifying
wet phosphoric
acid
wet
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7800771A
Other languages
English (en)
Other versions
FR2421845B2 (fr
Inventor
Armand Mamourian
Francois Bousquet
Jacques Helgorsky
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhone Poulenc Industries SA
Original Assignee
Rhone Poulenc Industries SA
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 by Rhone Poulenc Industries SA filed Critical Rhone Poulenc Industries SA
Priority to FR7800771A priority Critical patent/FR2421845A2/fr
Priority to CA303,785A priority patent/CA1109635A/fr
Priority to NL7805497A priority patent/NL7805497A/xx
Priority to BR7803244A priority patent/BR7803244A/pt
Priority to ES470068A priority patent/ES470068A1/es
Priority to JP6088878A priority patent/JPS5413497A/ja
Priority to IL5476478A priority patent/IL54764A/xx
Priority to IT49488/78A priority patent/IT1105409B/it
Priority to DE2822303A priority patent/DE2822303B2/de
Priority to GB21075/78A priority patent/GB1601428A/en
Priority to PH21180A priority patent/PH13509A/en
Publication of FR2421845A2 publication Critical patent/FR2421845A2/fr
Priority to US06/017,845 priority patent/US4285921A/en
Application granted granted Critical
Publication of FR2421845B2 publication Critical patent/FR2421845B2/fr
Granted legal-status Critical Current

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)

Abstract

L'invention concerne un procédé de purification d'un acide phosphorique de voie humide. L'acide brut de voie humide extrait au solvant, désulfaté au moyen d'une solution aqueuse d'ion calcium et régénéré à l'aide d'eau selon le brevet principal est ensuite soumis à un traitement à l'aide de vapeur d'eau ou de gaz chauds ce par quoi l'on obtient une solution concentrée d'acide phosphorique d'un rapport pondéral F/P2 O5 inférieur à 10 ppm. Application de l'acide obtenu dans l'industrie alimentaire.
FR7800771A 1977-05-23 1978-01-12 Procede de purification d'un acide phosphorique de voie humide Granted FR2421845A2 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
FR7800771A FR2421845A2 (fr) 1978-01-12 1978-01-12 Procede de purification d'un acide phosphorique de voie humide
CA303,785A CA1109635A (fr) 1977-05-23 1978-05-19 Purification et defluoration d'acide phosphorique impur
GB21075/78A GB1601428A (en) 1977-05-23 1978-05-22 Process for purifying phosphoric acid
ES470068A ES470068A1 (es) 1977-05-23 1978-05-22 Un procedimiento de purificacion y de desfluoracion de un acido fosforico impuro
JP6088878A JPS5413497A (en) 1977-05-23 1978-05-22 Purifying method of wet process phosphoric acid
IL5476478A IL54764A (en) 1977-05-23 1978-05-22 Process for purifying and defluorinating an impure phosphoric acid
NL7805497A NL7805497A (nl) 1977-05-23 1978-05-22 Werkwijze voor het zuiveren van fosforzuur.
DE2822303A DE2822303B2 (de) 1977-05-23 1978-05-22 Verfahren zur Herstellung einer praktisch fluorfreien konzentrierten Phosphorsäurelösung
BR7803244A BR7803244A (pt) 1977-05-23 1978-05-22 Processo de purificacao e de desfluoracao de acido fosforico impuro
IT49488/78A IT1105409B (it) 1977-05-23 1978-05-22 Procedimento di purificazione e fluorazione di un acido fosforico impuro per ottenere un acido fosforico di qualita' alimentare
PH21180A PH13509A (en) 1977-05-23 1978-05-23 Deflourination process
US06/017,845 US4285921A (en) 1978-01-12 1979-12-28 6107845x

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7800771A FR2421845A2 (fr) 1978-01-12 1978-01-12 Procede de purification d'un acide phosphorique de voie humide

Publications (2)

Publication Number Publication Date
FR2421845A2 true FR2421845A2 (fr) 1979-11-02
FR2421845B2 FR2421845B2 (fr) 1981-07-03

Family

ID=9203364

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7800771A Granted FR2421845A2 (fr) 1977-05-23 1978-01-12 Procede de purification d'un acide phosphorique de voie humide

Country Status (2)

Country Link
US (1) US4285921A (fr)
FR (1) FR2421845A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135801A1 (de) * 1981-09-10 1983-03-24 Hoechst Ag, 6000 Frankfurt Verfahren zur nachbehandlung von extraktionsrueckstaenden der phosphorsaeurereinigung
DE3442142A1 (de) * 1984-11-17 1986-05-22 Hoechst Ag, 6230 Frankfurt Verfahren zur entfernung von verunreinigungen aus phosphorsaeure
CN108622869B (zh) * 2018-07-04 2019-12-10 中化重庆涪陵化工有限公司 溶剂萃取法净化湿法磷酸的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1509607A (fr) * 1966-02-01 1968-01-12 Fmc Corp Procédé de purification de l'acide phosphorique
FR2039917A5 (fr) * 1969-03-24 1971-01-15 Central Glass Co Ltd
FR2277767A1 (fr) * 1974-07-09 1976-02-06 Toyo Soda Mfg Co Ltd Procede de preparation d'acide phosphorique pur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118462A (en) * 1974-02-01 1978-10-03 Rhone-Poulenc Industries Process for the preparation of purified phosphoric solutions from phosphoric acid
US4083937A (en) * 1974-07-09 1978-04-11 Toyo Soda Manufacturing Co., Ltd. Process for preparing pure phosphoric acid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1509607A (fr) * 1966-02-01 1968-01-12 Fmc Corp Procédé de purification de l'acide phosphorique
FR2039917A5 (fr) * 1969-03-24 1971-01-15 Central Glass Co Ltd
FR2277767A1 (fr) * 1974-07-09 1976-02-06 Toyo Soda Mfg Co Ltd Procede de preparation d'acide phosphorique pur

Also Published As

Publication number Publication date
US4285921A (en) 1981-08-25
FR2421845B2 (fr) 1981-07-03

Similar Documents

Publication Publication Date Title
FR2452475A1 (fr) Procede pour purifier des esters
SE8201286L (sv) Sett att avlegsna sura gaser och ammoniak ur en vattenlosning
CA2268414A1 (fr) Procede de reconcentration d'acides sulfuriques uses
MX159243A (es) Procedimiento para la purificacion de acido fosforico de procedimiento en humedo
FR2421845A2 (fr) Procede de purification d'un acide phosphorique de voie humide
SU585806A3 (ru) Способ очистки фосфорной кислоты
FR2447348A1 (fr) Procede de purification d'un acide phosphorique impur
GB1103224A (en) Improvements in the manufacture of phosphoric acid
FR2391954A2 (fr) Procede de purification d'un acide phosphorique de voie humide
OA07898A (fr) Procédé de purification de l'acide phosphorique de voie humide par élinination du cadmium.
FI65609C (fi) Foerfarande foer rening av vaotfoerfarande-fosforsyra
GB1438601A (en) Method for the purification of sulphuric acid containing mercury
ATE24475T1 (de) Verfahren zur reinigung eines gemisches von wasser mit c1-c2-alkoholen das von der industriellen herstellung von ethanol stammt, mit hilfe eines extraktionsmittels.
GB1436113A (en) Purification of phosphoric acid
FR2446256A1 (fr) Procede de purification du gypse chimique
FR2374263A1 (fr) Procede de purification de l'acide phosphorique prepare par voie humide
ES487930A1 (es) Un procedimiento de tratamiento de un acido fosforico bruto
FR2369211A1 (fr) Procede de preparation d'un acide phosphorique de purete elevee
SU1088658A3 (ru) Способ очистки фосфорной кислоты
ES470068A1 (es) Un procedimiento de purificacion y de desfluoracion de un acido fosforico impuro
FR2359132A1 (fr) Procede de preparation d'oxyde de propylene
JPS5581782A (en) Treatment method for flue gas desulfurization waste water
SU470492A1 (ru) Способ получени фосфорной кислоты
SU528260A1 (ru) Способ очистки экстракционной фосфорной кислоты
FR2322962A1 (fr) Procede de blanchiment d'articles de coton au moyen de solution acide, neutre ou alcalyne d'eau oxygenee