NL184315C - Werkwijze ter bereiding van zuivere alkalimetaalfosfaatoplossingen uit langs de natte weg verkregen fosforzuren. - Google Patents

Werkwijze ter bereiding van zuivere alkalimetaalfosfaatoplossingen uit langs de natte weg verkregen fosforzuren.

Info

Publication number
NL184315C
NL184315C NLAANVRAGE7702068,A NL7702068A NL184315C NL 184315 C NL184315 C NL 184315C NL 7702068 A NL7702068 A NL 7702068A NL 184315 C NL184315 C NL 184315C
Authority
NL
Netherlands
Prior art keywords
phosphoric acids
phosphate solutions
preparing pure
wet phosphoric
alkalimetal
Prior art date
Application number
NLAANVRAGE7702068,A
Other languages
English (en)
Dutch (nl)
Other versions
NL7702068A (nl
NL184315B (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
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of NL7702068A publication Critical patent/NL7702068A/xx
Publication of NL184315B publication Critical patent/NL184315B/xx
Application granted granted Critical
Publication of NL184315C publication Critical patent/NL184315C/xx

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
    • C01B25/26—Phosphates
    • C01B25/30—Alkali metal phosphates
    • C01B25/301—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates
    • C01B25/303—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates with elimination of impurities

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compounds Of Iron (AREA)
  • Removal Of Specific Substances (AREA)
NLAANVRAGE7702068,A 1976-02-27 1977-02-25 Werkwijze ter bereiding van zuivere alkalimetaalfosfaatoplossingen uit langs de natte weg verkregen fosforzuren. NL184315C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2608029A DE2608029C2 (de) 1976-02-27 1976-02-27 Verfahren zur Herstellung einer Alkaliphosphatlösung aus Naßverfahrensphosphorsäuren

Publications (3)

Publication Number Publication Date
NL7702068A NL7702068A (nl) 1977-08-30
NL184315B NL184315B (nl) 1989-01-16
NL184315C true NL184315C (nl) 1989-06-16

Family

ID=5971047

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7702068,A NL184315C (nl) 1976-02-27 1977-02-25 Werkwijze ter bereiding van zuivere alkalimetaalfosfaatoplossingen uit langs de natte weg verkregen fosforzuren.

Country Status (8)

Country Link
US (1) US4134962A (xx)
BE (1) BE851825A (xx)
DE (1) DE2608029C2 (xx)
ES (1) ES455855A1 (xx)
FR (1) FR2342249A1 (xx)
GB (1) GB1543522A (xx)
IT (1) IT1105703B (xx)
NL (1) NL184315C (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855922A1 (de) * 1978-12-23 1980-07-10 Hoechst Ag Verfahren zur herstellung von zinkfreien alkaliphosphatloesungen
SE418845B (sv) * 1979-05-10 1981-06-29 Boliden Ab Forfarande for rening av vatprocessfosforsyra
US4285920A (en) * 1979-11-08 1981-08-25 Stauffer Chemical Company Solvent extraction process for preparing purified phosphoric acid and sodium phosphate salts
DE3437685A1 (de) * 1984-10-15 1986-04-17 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung vanadiumarmer alkaliphosphatloesungen
DE3938225A1 (de) * 1989-11-17 1991-05-23 Hoechst Ag Verfahren zur herstellung gereinigter alkaliphosphatloesung
DE4327401A1 (de) * 1993-08-14 1995-02-16 Hoechst Ag Verfahren zur Entfernung von Blei und Cadmium aus Phosphorsäure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2174138A (en) * 1938-04-27 1939-09-26 Paul E Sage Powder-feeding device
US3305305A (en) * 1962-12-26 1967-02-21 Hooker Chemical Corp Purification of phosphate solutions
US3493336A (en) * 1964-06-18 1970-02-03 Electric Reduction Co Manufacture of alkali metal phosphates
US3421846A (en) * 1965-06-07 1969-01-14 Hooker Chemical Corp Production of sodium phosphates
DE1811994B2 (de) * 1968-11-30 1971-02-04 Knapsack AG. 5030 Hurth Verfahren zur Herstellung von Alkali phosphatlosungen
DE2035505C3 (de) * 1970-07-17 1974-06-12 Knapsack Ag, 5033 Huerth-Knapsack Verfahren zur Herstellung reiner Alkaliphosphatlösungen
DE2323292C3 (de) * 1973-05-09 1981-10-29 Kali Und Salz Ag, 3500 Kassel Verfahren zur Herstellung von Natrium- und/oder Kaliumphosphaten

Also Published As

Publication number Publication date
FR2342249B1 (xx) 1981-10-02
NL7702068A (nl) 1977-08-30
US4134962A (en) 1979-01-16
ES455855A1 (es) 1978-01-01
NL184315B (nl) 1989-01-16
DE2608029A1 (de) 1977-09-01
IT1105703B (it) 1985-11-04
GB1543522A (en) 1979-04-04
BE851825A (fr) 1977-08-25
DE2608029C2 (de) 1984-02-23
FR2342249A1 (fr) 1977-09-23

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee

Effective date: 19950901