[go: up one dir, main page]

ES336087A1 - Purification procedure of phosphoric acid. (Machine-translation by Google Translate, not legally binding) - Google Patents

Purification procedure of phosphoric acid. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES336087A1
ES336087A1 ES0336087A ES336087A ES336087A1 ES 336087 A1 ES336087 A1 ES 336087A1 ES 0336087 A ES0336087 A ES 0336087A ES 336087 A ES336087 A ES 336087A ES 336087 A1 ES336087 A1 ES 336087A1
Authority
ES
Spain
Prior art keywords
phosphoric acid
acid
hydrated
extract
solution
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.)
Expired
Application number
ES0336087A
Other languages
Spanish (es)
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.)
FMC Corp
Original Assignee
FMC Corp
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 US554563A external-priority patent/US3410656A/en
Application filed by FMC Corp filed Critical FMC Corp
Publication of ES336087A1 publication Critical patent/ES336087A1/en
Expired 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)
  • Extraction Or Liquid Replacement (AREA)
  • Fats And Perfumes (AREA)

Abstract

Process for purifying hydrated phosphoric acid, obtained by acidification with phosphoric acid sulfuric acid, characterized in that it comprises contacting said hydrated acid with an organic extractor solution, in a volumetric ratio of 1: 1 to 1:10 endowed with a solubility limited in that, this ratio being sufficient to extract up to 85% of the P2O5 contained in said hydrated acid, said organic extractor solution containing an organic phosphate selected from the group consisting of alkyl phosphates, aryl phosphates and alkylaryl phosphates diluted with an organic solvent the volumetric ratio of organic solvent to extracting solution being included, between 10: 1 to 0.5: 1; recovering an extract with less impurities than said hydrated acid; contacting said extract with water in sufficient quantities to separate the P2O5 content of said extract and form phosphoric acid; separating an aqueous solution of phosphoric acid from the remaining organic extractor solution; and recovering, as a product, a phosphoric acid solution endowed with a purity superior to that of said hydrated acid. (Machine-translation by Google Translate, not legally binding)
ES0336087A 1966-02-01 1967-01-26 Purification procedure of phosphoric acid. (Machine-translation by Google Translate, not legally binding) Expired ES336087A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52427266A 1966-02-01 1966-02-01
US554563A US3410656A (en) 1966-06-01 1966-06-01 Phosphoric acid purification

Publications (1)

Publication Number Publication Date
ES336087A1 true ES336087A1 (en) 1967-12-16

Family

ID=27061446

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0336087A Expired ES336087A1 (en) 1966-02-01 1967-01-26 Purification procedure of phosphoric acid. (Machine-translation by Google Translate, not legally binding)

Country Status (6)

Country Link
BE (1) BE693387A (en)
BR (1) BR6786726D0 (en)
ES (1) ES336087A1 (en)
FR (1) FR1509607A (en)
GB (1) GB1162062A (en)
NL (1) NL150753B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421845A2 (en) * 1978-01-12 1979-11-02 Rhone Poulenc Ind PROCESS FOR PURIFYING A WET PHOSPHORIC ACID
FR2391954A2 (en) * 1977-05-23 1978-12-22 Rhone Poulenc Ind WET PHOSPHORIC ACID PURIFICATION PROCESS
US4250155A (en) * 1978-06-09 1981-02-10 Gardinier, Inc. Method of purifying phosphoric acid after solvent extraction
US5006319A (en) * 1988-03-04 1991-04-09 Fmc Corporation Process for removing iron, chromium and vanadium from phosphoric acid
FR2677345B1 (en) * 1991-06-04 1993-12-24 Commissariat A Energie Atomique PROCESS FOR PURIFICATION AND RECOVERY OF ORTHOPHOSPHORIC ACID BY LIQUID-LIQUID EXTRACTION.
DE102008023649A1 (en) * 2008-05-15 2009-11-19 Csv-Chemie Service Und Vertriebs Gmbh Purification of phosphorus-containing acid comprises mixing a first aqueous phase comprising a phosphorus-containing acid with a second phase comprising an organic solvent, separating the phases and isolating the second phase

Also Published As

Publication number Publication date
NL6701511A (en) 1967-08-02
BR6786726D0 (en) 1973-12-27
FR1509607A (en) 1968-01-12
DE1667487B2 (en) 1976-01-15
BE693387A (en) 1967-07-31
GB1162062A (en) 1969-08-20
DE1667487A1 (en) 1971-06-24
NL150753B (en) 1976-09-15

Similar Documents

Publication Publication Date Title
GB1210446A (en) Continuous process for the purification of phosphoric acid
FR2435533A1 (en) INDIUM RECOVERY PROCESS
ES336087A1 (en) Purification procedure of phosphoric acid. (Machine-translation by Google Translate, not legally binding)
TR21939A (en) PROCEDURE FOR TREATMENT OF WET PROCEDURE PHOSPHORIC ACID
ES309025A1 (en) A procedure to separate amounts of phosphate from an organic amine extractor insoluble in water. (Machine-translation by Google Translate, not legally binding)
ES463636A1 (en) Solvent extraction purification of wet-processed phosphoric acid
ES395270A1 (en) Handling of raffinates from wet phosphoric acid purification
GB1455659A (en) Method for purifying crude phosphoric acid
GB1240285A (en) Purification of phosphoric acid
ES387638A1 (en) Purification of phosphoric acid
GB1456682A (en) Phosphoric acid purification
ES434309A1 (en) Purfified phosphoric acid and its production
GB1365010A (en) Purification of wet process h3po4 by solvent extraction
GB1199042A (en) Purification of Phosphoric Acid
ES8504655A1 (en) Removal of insaponifiable water-insoluble impurities from mixture of cyclohexanone and cyclohexanol
GB1209272A (en) Cleaning of phosphoric acid
SU1063780A1 (en) Method for separating hafnium and zirconium by extraction
SU1194265A3 (en) Extraction mixture for isolating uranium (iv) from solutions of phosphoric acid
FR2038224A1 (en) Liquid process for selective separation of - molybdenum from fission products
SU148385A1 (en) The method of cleaning industrial solutions, for example, phosphoric acid
SU1822107A1 (en) Method of extractive separation of rare-earth elements
ES382561A1 (en) Process for the production of high purity benzthiazyl-sulphenamides
Crnko et al. Extraction of Iron(III) From Acid Solutions From Slag
ES430689A1 (en) A procedure for the obtaining of phosphoric acid of detergent quality. (Machine-translation by Google Translate, not legally binding)
SU606811A1 (en) Method of preparing phosphoric acid