NO965470L - Fremgangsmåte for rensing av fosforsyre - Google Patents

Fremgangsmåte for rensing av fosforsyre

Info

Publication number
NO965470L
NO965470L NO965470A NO965470A NO965470L NO 965470 L NO965470 L NO 965470L NO 965470 A NO965470 A NO 965470A NO 965470 A NO965470 A NO 965470A NO 965470 L NO965470 L NO 965470L
Authority
NO
Norway
Prior art keywords
purification
acid
phosphoric acid
h2po4
h3po4
Prior art date
Application number
NO965470A
Other languages
English (en)
Other versions
NO965470D0 (no
Inventor
Anders Weckman
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 NO965470L publication Critical patent/NO965470L/no
Publication of NO965470D0 publication Critical patent/NO965470D0/no

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Oppfinnelsen angår en frem- gangsmåte for rensing av en uren fosfor- syre fremstilt ved våtprosessen. Syren som skal renses konsentreres til 58-68 % P205-syre ved oppvarming. Urenheter fjer- nes fra syren ved krystallisasjon som en forbindelse MJ* (H2P04)2 ¿ n ¿ H3P04, hvor M2* er en toverdig metallionurenhet og n kan variere innen 2-5.
NO965470A 1994-06-20 1996-12-19 Fremgangsmåte for rensing av fosforsyre NO965470D0 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI942947A FI95905C (fi) 1994-06-20 1994-06-20 Fosforihapon puhdistusmenetelmä
PCT/FI1995/000354 WO1995035257A1 (en) 1994-06-20 1995-06-19 Process for the purification of phosphoric acid

Publications (2)

Publication Number Publication Date
NO965470L true NO965470L (no) 1996-12-19
NO965470D0 NO965470D0 (no) 1996-12-19

Family

ID=8540956

Family Applications (1)

Application Number Title Priority Date Filing Date
NO965470A NO965470D0 (no) 1994-06-20 1996-12-19 Fremgangsmåte for rensing av fosforsyre

Country Status (12)

Country Link
EP (1) EP0768985A1 (no)
AU (1) AU2740195A (no)
BG (1) BG101023A (no)
CZ (1) CZ365596A3 (no)
FI (1) FI95905C (no)
HU (1) HUT76719A (no)
NO (1) NO965470D0 (no)
PL (1) PL318219A1 (no)
RO (1) RO114886B1 (no)
RU (1) RU2139240C1 (no)
SK (1) SK161696A3 (no)
WO (1) WO1995035257A1 (no)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2209178C1 (ru) * 2002-02-22 2003-07-27 Открытое акционерное общество "РЕАТЭКС" Способ очистки термической фосфорной кислоты
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
RU2406692C1 (ru) * 2009-03-31 2010-12-20 Тагир Вильданович Шарипов Способ очистки экстракционной фосфорной кислоты
RU2408530C1 (ru) * 2009-04-30 2011-01-10 Открытое акционерное общество "Воскресенские минеральные удобрения" Способ очистки экстракционной фосфорной кислоты

Family Cites Families (4)

* 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
US4248843A (en) * 1977-09-29 1981-02-03 Triomf Fertilizer (Proprietary) Ltd. Treatment of phosphoric acid
DE3003250C2 (de) * 1980-01-30 1982-09-16 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren zum Abtrennen von Feststoffen aus Phosphorsäure
SU1467034A1 (ru) * 1986-05-19 1989-03-23 Воскресенский филиал Научно-исследовательского института по удобрениям и инсектофунгицидам им.проф.Я.В.Самойлова Способ концентрировани и очистки фосфорной кислоты

Also Published As

Publication number Publication date
RO114886B1 (ro) 1999-08-30
RU2139240C1 (ru) 1999-10-10
HU9603513D0 (en) 1997-02-28
WO1995035257A1 (en) 1995-12-28
CZ365596A3 (en) 1997-05-14
EP0768985A1 (en) 1997-04-23
PL318219A1 (en) 1997-05-26
SK161696A3 (en) 1997-07-09
BG101023A (en) 1997-08-29
FI95905C (fi) 1996-04-10
FI942947A0 (fi) 1994-06-20
FI95905B (fi) 1995-12-29
NO965470D0 (no) 1996-12-19
HUT76719A (en) 1997-10-28
AU2740195A (en) 1996-01-15

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application