NL174133C - Werkwijze en inrichting ter bereiding van fosforigzuur. - Google Patents

Werkwijze en inrichting ter bereiding van fosforigzuur.

Info

Publication number
NL174133C
NL174133C NLAANVRAGE7300137,A NL7300137A NL174133C NL 174133 C NL174133 C NL 174133C NL 7300137 A NL7300137 A NL 7300137A NL 174133 C NL174133 C NL 174133C
Authority
NL
Netherlands
Prior art keywords
phosphoric acid
preparing phosphoric
preparing
acid
phosphoric
Prior art date
Application number
NLAANVRAGE7300137,A
Other languages
English (en)
Other versions
NL7300137A (nl
NL174133B (nl
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
Priority claimed from DE19722200653 external-priority patent/DE2200653C3/de
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of NL7300137A publication Critical patent/NL7300137A/xx
Publication of NL174133B publication Critical patent/NL174133B/nl
Application granted granted Critical
Publication of NL174133C publication Critical patent/NL174133C/nl

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Treating Waste Gases (AREA)
NLAANVRAGE7300137,A 1972-01-07 1973-01-04 Werkwijze en inrichting ter bereiding van fosforigzuur. NL174133C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722200653 DE2200653C3 (de) 1972-01-07 Verfahren und Vorrichtung zur Herstellung von phosphoriger Säure

Publications (3)

Publication Number Publication Date
NL7300137A NL7300137A (nl) 1973-07-10
NL174133B NL174133B (nl) 1983-12-01
NL174133C true NL174133C (nl) 1984-05-01

Family

ID=5832494

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7300137,A NL174133C (nl) 1972-01-07 1973-01-04 Werkwijze en inrichting ter bereiding van fosforigzuur.

Country Status (8)

Country Link
US (1) US3859419A (nl)
BE (1) BE793712A (nl)
CA (1) CA983669A (nl)
CH (1) CH584653A5 (nl)
FR (1) FR2167704B1 (nl)
GB (1) GB1374545A (nl)
IT (1) IT976757B (nl)
NL (1) NL174133C (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714657A1 (de) * 1987-05-02 1988-11-10 Hoechst Ag Verfahren zur reinigung von phosphoriger saeure
WO1995013285A1 (en) * 1993-11-10 1995-05-18 E.I. Du Pont De Nemours And Company Process for the preparation of phosphorous acid/carboxylic acid mixed anhydrides and anhydrous phosphorous acid

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670274A (en) * 1951-10-25 1954-02-23 Monsanto Chemicals Method of producing orthophosphoric acid
DE1206406B (de) * 1964-09-19 1965-12-09 Knapsack Ag Verfahren zur Herstellung von phosphoriger Saeure

Also Published As

Publication number Publication date
CA983669A (en) 1976-02-17
IT976757B (it) 1974-09-10
FR2167704B1 (nl) 1976-05-14
FR2167704A1 (nl) 1973-08-24
BE793712A (fr) 1973-07-05
DE2200653B2 (de) 1977-06-23
US3859419A (en) 1975-01-07
NL7300137A (nl) 1973-07-10
CH584653A5 (nl) 1977-02-15
DE2200653A1 (de) 1973-07-19
GB1374545A (en) 1974-11-20
NL174133B (nl) 1983-12-01

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V4 Discontinued because of reaching the maximum lifetime of a patent