NL170839B - METHOD FOR PURIFYING PHOSPHORIC ACID PREPARED AT WET TEMPERATURE ALONG THE WET - Google Patents

METHOD FOR PURIFYING PHOSPHORIC ACID PREPARED AT WET TEMPERATURE ALONG THE WET

Info

Publication number
NL170839B
NL170839B NLAANVRAGE7511568,A NL7511568A NL170839B NL 170839 B NL170839 B NL 170839B NL 7511568 A NL7511568 A NL 7511568A NL 170839 B NL170839 B NL 170839B
Authority
NL
Netherlands
Prior art keywords
wet
phosphoric acid
acid prepared
temperature along
purifying phosphoric
Prior art date
Application number
NLAANVRAGE7511568,A
Other languages
Dutch (nl)
Other versions
NL170839C (en
NL7511568A (en
Original Assignee
Hoechst Ag
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 Hoechst Ag filed Critical Hoechst Ag
Publication of NL7511568A publication Critical patent/NL7511568A/en
Publication of NL170839B publication Critical patent/NL170839B/en
Application granted granted Critical
Publication of NL170839C publication Critical patent/NL170839C/en

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
    • C01B25/237—Selective elimination of impurities

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processing Of Solid Wastes (AREA)
NLAANVRAGE7511568,A 1974-10-04 1975-10-01 METHOD FOR PURIFYING PHOSPHORIC ACID PREPARED AT WET TEMPERATURE ALONG THE WET NL170839C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2447390A DE2447390C3 (en) 1974-10-04 1974-10-04 Process for purifying wet phosphoric acid

Publications (3)

Publication Number Publication Date
NL7511568A NL7511568A (en) 1976-04-06
NL170839B true NL170839B (en) 1982-08-02
NL170839C NL170839C (en) 1983-01-03

Family

ID=5927552

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7511568,A NL170839C (en) 1974-10-04 1975-10-01 METHOD FOR PURIFYING PHOSPHORIC ACID PREPARED AT WET TEMPERATURE ALONG THE WET

Country Status (21)

Country Link
JP (1) JPS5163394A (en)
AT (1) AT358525B (en)
BE (1) BE834003A (en)
BR (1) BR7506423A (en)
CA (1) CA1045339A (en)
CH (1) CH599900A5 (en)
DD (1) DD120417A5 (en)
DE (1) DE2447390C3 (en)
DK (1) DK137229C (en)
EG (1) EG11849A (en)
ES (1) ES441121A1 (en)
FI (1) FI752749A (en)
FR (1) FR2286790A1 (en)
GB (1) GB1524552A (en)
IL (1) IL48236A (en)
IT (1) IT1047666B (en)
NL (1) NL170839C (en)
SE (1) SE401668B (en)
SU (1) SU671716A3 (en)
TR (1) TR19680A (en)
ZA (1) ZA755820B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447347A1 (en) * 1979-01-24 1980-08-22 Rhone Poulenc Ind PROCESS FOR THE TREATMENT OF AN IMPURE PHOSPHORIC ACID
SE418845B (en) 1979-05-10 1981-06-29 Boliden Ab PROCEDURE FOR PURIFICATION OF VAT PROCESS PHOSPHORIC ACID
DE3134847A1 (en) * 1981-09-03 1983-03-17 Hoechst Ag, 6000 Frankfurt "METHOD FOR PRODUCING CADMIUM-FREE RAW PHOSPHORIC ACID"
DE3202659A1 (en) * 1982-01-28 1983-08-04 Hoechst Ag, 6230 Frankfurt METHOD FOR PURIFYING WET METHOD PHOSPHORIC ACID
EP0087065B1 (en) * 1982-02-12 1985-09-25 Hoechst Aktiengesellschaft Process for the reduction of the heavy metal content in raw phosphate
IL69100A (en) * 1982-07-21 1986-11-30 Hoechst Ag Process for removing heavy metal ions and arsenic from wet-processed phosphoric acid
DE3325862A1 (en) * 1983-07-18 1985-01-31 Hoechst Ag, 6230 Frankfurt METHOD AND DEVICE FOR REMOVING ORGANIC IMPURITIES FROM WET PROCESS PHOSPHORIC ACID
DE19703884C2 (en) * 1997-02-03 1999-04-29 Bk Giulini Chem Gmbh & Co Ohg Process for purifying wet process phosphoric acid

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1472520A (en) * 1966-03-23 1967-03-10 Marchon Products Ltd Phosphoric acid desulfation process

Also Published As

Publication number Publication date
ATA753175A (en) 1980-02-15
DK137229B (en) 1978-02-06
SE7511066L (en) 1976-04-05
FI752749A (en) 1976-04-05
DK447575A (en) 1976-04-05
IL48236A (en) 1978-04-30
DD120417A5 (en) 1976-06-12
DE2447390A1 (en) 1976-04-08
IL48236A0 (en) 1975-12-31
EG11849A (en) 1978-06-30
FR2286790B1 (en) 1979-10-12
ZA755820B (en) 1976-08-25
FR2286790A1 (en) 1976-04-30
DK137229C (en) 1978-07-10
AT358525B (en) 1980-09-10
DE2447390C3 (en) 1983-11-17
IT1047666B (en) 1980-10-20
GB1524552A (en) 1978-09-13
JPS5163394A (en) 1976-06-01
DE2447390B2 (en) 1977-10-20
SU671716A3 (en) 1979-06-30
ES441121A1 (en) 1977-03-16
JPS537319B2 (en) 1978-03-16
CH599900A5 (en) 1978-06-15
BE834003A (en) 1976-03-30
BR7506423A (en) 1976-08-10
TR19680A (en) 1979-10-05
SE401668B (en) 1978-05-22
NL170839C (en) 1983-01-03
CA1045339A (en) 1979-01-02
NL7511568A (en) 1976-04-06

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee