BG101023A - Метод за пречистване на фосфорна киселина - Google Patents

Метод за пречистване на фосфорна киселина

Info

Publication number
BG101023A
BG101023A BG101023A BG10102396A BG101023A BG 101023 A BG101023 A BG 101023A BG 101023 A BG101023 A BG 101023A BG 10102396 A BG10102396 A BG 10102396A BG 101023 A BG101023 A BG 101023A
Authority
BG
Bulgaria
Prior art keywords
acid
purification
phosphohoric
h2po4
h3po4
Prior art date
Application number
BG101023A
Other languages
English (en)
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 BG101023A publication Critical patent/BG101023A/bg

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

Методът намира приложение за пречистване на непречистена фосфорна киселина, получена по мокрия метод. Киселината, която трябва да се пречисти, се концентрира чрез нагряване до 58-68% Р2О5 киселина. Примесите се отстраняват чрез кристализация във видна съединение с формулаМ2+(Н2РО4)2.n.Н3РО4в коетоМ2+ е примес от бивалентен метален йон, а n може да варира от 2 до 5.
BG101023A 1994-06-20 1996-12-03 Метод за пречистване на фосфорна киселина BG101023A (bg)

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 (1)

Publication Number Publication Date
BG101023A true BG101023A (bg) 1997-08-29

Family

ID=8540956

Family Applications (1)

Application Number Title Priority Date Filing Date
BG101023A BG101023A (bg) 1994-06-20 1996-12-03 Метод за пречистване на фосфорна киселина

Country Status (12)

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

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 (fi) 1994-06-20
WO1995035257A1 (en) 1995-12-28
PL318219A1 (en) 1997-05-26
HUT76719A (en) 1997-10-28
FI95905B (fi) 1995-12-29
HU9603513D0 (en) 1997-02-28
AU2740195A (en) 1996-01-15
CZ365596A3 (en) 1997-05-14
EP0768985A1 (en) 1997-04-23
RO114886B1 (ro) 1999-08-30
SK161696A3 (en) 1997-07-09
FI95905C (fi) 1996-04-10
RU2139240C1 (ru) 1999-10-10
NO965470L (no) 1996-12-19

Similar Documents

Publication Publication Date Title
ES8609350A1 (es) Un procedimiento para la produccion de un monoester fosfori-co
ES8308805A1 (es) Procedimiento para la eliminacion de iones de metales pesados, especialmente de iones de cadmio, cobre, plomo y mercurio, a partir de acido fosforico de procedimiento en humedo.
BG101023A (bg) Метод за пречистване на фосфорна киселина
EP0208422A3 (en) Process for the manufacture of monopotassium phosphate
ES8104139A1 (es) Un procedimiento para la purificacion de acido fosforico
ES8501356A1 (es) Procedimiento para la separacion de componentes de metales pesados a partir de acidos fosforicos brutos.
RO102359B1 (en) Process for purifying calcium nitrate melt
DE3360724D1 (en) Process for removing heavy metal ions and arsenic from wet-process phosphoric acid
GB2250279A (en) Method for producing alkali metal phosphate
AU579566B2 (en) Process for production of dialkali metal phosphates by ion exchange
NO944706D0 (no) Fremgangsmåte for rensing av fosforsyre
ES473824A1 (es) Procedimiento para el tratamiento de acido fosforico.
SU998588A1 (ru) Способ получени фосфористой кислоты
RU96124067A (ru) Способ очистки фосфорной кислоты
US4692282A (en) Phenyltetraline-diphosphonic acids and process for making them
UST104501I4 (en) Production of high-analysis ammonium orthophosphate suspension fertilizers by a new batch-type process
PH25359A (en) Continuous process for complete removal of organic impurities from, complete decolorization of prepurified wet process phosphoric acid
SU1265141A1 (ru) Способ получени триаммонийфосфата
JPS51143597A (en) Process for purification of impure phosphoric acid
JPS5383994A (en) Production of neutral anhydrous sodium sulfate
JPS5688810A (en) Preparation of phosphoric acid by wet process
DE3480085D1 (en) Process for producing purified phosphoric acid, device therefor and product obtained
JO1300B1 (en) An advanced way to manufacture super phosphoic acid