RO67820A - Procede pour la purification d'acide phosphorique - Google Patents

Procede pour la purification d'acide phosphorique

Info

Publication number
RO67820A
RO67820A RO7374626A RO7462673A RO67820A RO 67820 A RO67820 A RO 67820A RO 7374626 A RO7374626 A RO 7374626A RO 7462673 A RO7462673 A RO 7462673A RO 67820 A RO67820 A RO 67820A
Authority
RO
Romania
Prior art keywords
purification
phosphoric acid
phosphoric
acid
Prior art date
Application number
RO7374626A
Other languages
English (en)
Romanian (ro)
Inventor
Thomas A Williams
Frank M Cussons
Original Assignee
Albright Wilson Ltd,Gb
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 Albright Wilson Ltd,Gb filed Critical Albright Wilson Ltd,Gb
Publication of RO67820A publication Critical patent/RO67820A/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
    • C01B25/46—Preparation involving solvent-solvent extraction
    • C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
    • C01B25/463—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound the extracting agent being a ketone or a mixture of ketones
    • 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
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • 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
    • 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
    • C01B25/2343—Concentration concomitant with purification, e.g. elimination of fluorine

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
RO7374626A 1972-04-26 1973-04-26 Procede pour la purification d'acide phosphorique RO67820A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1947672A GB1436113A (en) 1972-04-26 1972-04-26 Purification of phosphoric acid
GB4538072 1972-10-02

Publications (1)

Publication Number Publication Date
RO67820A true RO67820A (fr) 1980-01-15

Family

ID=26254071

Family Applications (2)

Application Number Title Priority Date Filing Date
RO7385793A RO69802A (fr) 1972-04-26 1973-04-26 Procede de purification de l'acide phosphorique
RO7374626A RO67820A (fr) 1972-04-26 1973-04-26 Procede pour la purification d'acide phosphorique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
RO7385793A RO69802A (fr) 1972-04-26 1973-04-26 Procede de purification de l'acide phosphorique

Country Status (20)

Country Link
JP (1) JPS4999993A (fr)
AU (1) AU8599475A (fr)
BE (1) BE798737A (fr)
CA (1) CA1004828A (fr)
CH (1) CH613916A5 (fr)
DD (1) DD109362A5 (fr)
DE (1) DE2320877B2 (fr)
ES (1) ES414069A1 (fr)
FI (1) FI59077C (fr)
FR (3) FR2182055B1 (fr)
GB (1) GB1436113A (fr)
IE (1) IE37549B1 (fr)
IN (1) IN140334B (fr)
MY (1) MY7800085A (fr)
NL (1) NL7305765A (fr)
NO (1) NO137082C (fr)
OA (1) OA04403A (fr)
RO (2) RO69802A (fr)
SE (1) SE395263B (fr)
TR (1) TR18445A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543632A1 (de) * 1974-10-07 1976-04-08 Pennzoil Co Verfahren zur herstellung von fluoridfreien phosphaten
CA1139956A (fr) * 1978-10-10 1983-01-25 Mark A. Rose Procede d'extraction de l'uranium a partir d'acide phosphorique brut
DE3246416A1 (de) * 1982-12-15 1984-06-20 Hoechst Ag, 6230 Frankfurt Verfahren zur reinigung von nassverfahrensphosphorsaeure
DE3246415A1 (de) * 1982-12-15 1984-06-20 Hoechst Ag, 6230 Frankfurt Verfahren zur reinigung von nassverfahrenphosphorsaeure
JP2512429Y2 (ja) * 1993-07-12 1996-10-02 北陸電気工業株式会社 高電圧抵抗パック
IT1285694B1 (it) * 1996-05-08 1998-06-18 Azionaria Costruzioni Acma Spa Metodo ed unita' per la formazione ed il convogliamento di gruppi di prodotti
DE19703884C2 (de) 1997-02-03 1999-04-29 Bk Giulini Chem Gmbh & Co Ohg Verfahren zur Reinigung von Naßverfahrensphosphorsäure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL298968A (fr) 1963-10-08
GB1142719A (en) * 1968-10-24 1969-02-12 Israel Mining Ind Inst For Res Phosphoric acid recovery
DE2334019C3 (de) * 1973-07-04 1982-11-04 Hoechst Ag, 6000 Frankfurt Verfahren zur Reinigung von verunreinigter wäßriger Phosphorsäure

Also Published As

Publication number Publication date
CH613916A5 (en) 1979-10-31
IN140334B (fr) 1976-10-16
DE2320877A1 (de) 1973-11-15
TR18445A (tr) 1977-02-16
OA04403A (fr) 1980-02-29
RO69802B (ro) 1983-06-30
FR2289441A1 (fr) 1976-05-28
NO137082B (no) 1977-09-19
ES414069A1 (es) 1976-05-16
AU8599475A (en) 1975-12-18
AU5488473A (en) 1974-10-31
FR2182055B1 (fr) 1977-01-07
DE2320877B2 (de) 1980-03-20
FR2289442A1 (fr) 1976-05-28
FI59077B (fi) 1981-02-27
NL7305765A (fr) 1973-10-30
BE798737A (fr) 1973-10-26
FR2289442B1 (fr) 1979-02-02
RO69802A (fr) 1983-07-07
IE37549L (en) 1973-10-26
FI59077C (fi) 1981-06-10
SE395263B (sv) 1977-08-08
MY7800085A (en) 1978-12-31
FR2182055A1 (fr) 1973-12-07
IE37549B1 (en) 1977-08-17
DD109362A5 (fr) 1974-11-05
NO137082C (no) 1977-12-28
JPS4999993A (fr) 1974-09-20
CA1004828A (en) 1977-02-08
GB1436113A (en) 1976-05-19
FR2289441B1 (fr) 1979-02-02

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