RO114886B1 - Procedeu pentru purificarea acidului fosforic - Google Patents

Procedeu pentru purificarea acidului fosforic Download PDF

Info

Publication number
RO114886B1
RO114886B1 RO96-02409A RO9602409A RO114886B1 RO 114886 B1 RO114886 B1 RO 114886B1 RO 9602409 A RO9602409 A RO 9602409A RO 114886 B1 RO114886 B1 RO 114886B1
Authority
RO
Romania
Prior art keywords
acid
phosphoric acid
concentrated
process according
impurities
Prior art date
Application number
RO96-02409A
Other languages
English (en)
Romanian (ro)
Inventor
Anders Weckman Espo Stig-Goran
Original Assignee
Kemira Chemicals Oy
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 Kemira Chemicals Oy filed Critical Kemira Chemicals Oy
Publication of RO114886B1 publication Critical patent/RO114886B1/ro

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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
    • C01B25/2343—Concentration concomitant with purification, e.g. elimination of fluorine

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
RO96-02409A 1994-06-20 1995-06-19 Procedeu pentru purificarea acidului fosforic RO114886B1 (ro)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI942947A FI95905C (sv) 1994-06-20 1994-06-20 Förfarande för rening av fosforsyra
PCT/FI1995/000354 WO1995035257A1 (en) 1994-06-20 1995-06-19 Process for the purification of phosphoric acid

Publications (1)

Publication Number Publication Date
RO114886B1 true RO114886B1 (ro) 1999-08-30

Family

ID=8540956

Family Applications (1)

Application Number Title Priority Date Filing Date
RO96-02409A RO114886B1 (ro) 1994-06-20 1995-06-19 Procedeu pentru purificarea acidului fosforic

Country Status (12)

Country Link
EP (1) EP0768985A1 (sv)
AU (1) AU2740195A (sv)
BG (1) BG101023A (sv)
CZ (1) CZ365596A3 (sv)
FI (1) FI95905C (sv)
HU (1) HUT76719A (sv)
NO (1) NO965470L (sv)
PL (1) PL318219A1 (sv)
RO (1) RO114886B1 (sv)
RU (1) RU2139240C1 (sv)
SK (1) SK161696A3 (sv)
WO (1) WO1995035257A1 (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100454101B1 (ko) * 2002-03-15 2004-10-26 한국화학연구원 인산의 정제방법과 그 장치
KR100542969B1 (ko) * 2005-03-18 2006-01-20 (주) 광진화학 공정폐액으로부터 고순도의 인산을 연속적으로 정제하는방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL26524A (en) * 1965-10-04 1970-07-19 Struthers Scient And Int Corp Phosphoric acid process

Also Published As

Publication number Publication date
NO965470D0 (no) 1996-12-19
FI942947A0 (sv) 1994-06-20
WO1995035257A1 (en) 1995-12-28
BG101023A (en) 1997-08-29
PL318219A1 (en) 1997-05-26
HUT76719A (en) 1997-10-28
FI95905B (sv) 1995-12-29
HU9603513D0 (en) 1997-02-28
AU2740195A (en) 1996-01-15
CZ365596A3 (en) 1997-05-14
EP0768985A1 (en) 1997-04-23
SK161696A3 (en) 1997-07-09
FI95905C (sv) 1996-04-10
RU2139240C1 (ru) 1999-10-10
NO965470L (no) 1996-12-19

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