FI922650A0 - Fosforihapon puhdistusmenetelmä - Google Patents
Fosforihapon puhdistusmenetelmäInfo
- Publication number
- FI922650A0 FI922650A0 FI922650A FI922650A FI922650A0 FI 922650 A0 FI922650 A0 FI 922650A0 FI 922650 A FI922650 A FI 922650A FI 922650 A FI922650 A FI 922650A FI 922650 A0 FI922650 A0 FI 922650A0
- Authority
- FI
- Finland
- Prior art keywords
- phosphoric acid
- purification
- ions
- impurity
- reduction
- Prior art date
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
- C01B25/237—Selective elimination of impurities
- C01B25/238—Cationic impurities, e.g. arsenic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Fuel Cell (AREA)
- Removal Of Specific Substances (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Saccharide Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Priority Applications (17)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI922650A FI90966C (fi) | 1992-06-08 | 1992-06-08 | Fosforihapon puhdistusmenetelmä |
CZ943081A CZ284622B6 (cs) | 1992-06-08 | 1993-06-07 | Způsob odstraňování železa z kyseliny fosforečné |
EP93910074A EP0647205B1 (en) | 1992-06-08 | 1993-06-07 | Process for purifying phosphoric acid |
RO94-01957A RO114319B1 (ro) | 1992-06-08 | 1993-06-07 | Procedeu pentru purificarea acidului fosforic |
SK1494-94A SK280302B6 (sk) | 1992-06-08 | 1993-06-07 | Spôsob odstraňovania železa z kyseliny fosforečnej |
DE69302815T DE69302815T2 (de) | 1992-06-08 | 1993-06-07 | Verfahren zur reinigung von phosphorsäure |
AU40735/93A AU4073593A (en) | 1992-06-08 | 1993-06-07 | Process for purifying phosphoric acid |
RU94046263A RU2102313C1 (ru) | 1992-06-08 | 1993-06-07 | Способ удаления железа из фосфорной кислоты, полученной мокрым способом |
PCT/FI1993/000245 WO1993025472A1 (en) | 1992-06-08 | 1993-06-07 | Process for purifying phosphoric acid |
PL93306712A PL170642B1 (pl) | 1992-06-08 | 1993-06-07 | Sposób oczyszczania kwasu fosforowego PL PL PL |
HU9403505A HU214096B (en) | 1992-06-08 | 1993-06-07 | Process for purifying phosphoric acid |
DK93910074.9T DK0647205T3 (da) | 1992-06-08 | 1993-06-07 | Fremgangsmåde til oprensning af phosphorsyre |
AT93910074T ATE138353T1 (de) | 1992-06-08 | 1993-06-07 | Verfahren zur reinigung von phosphorsäure |
ES93910074T ES2088674T3 (es) | 1992-06-08 | 1993-06-07 | Procedimiento para purificar acido fosforico. |
NO944706A NO944706L (no) | 1992-06-08 | 1994-12-06 | Fremgangsmåte for rensing av fosforsyre |
BG99245A BG61396B1 (en) | 1992-06-08 | 1994-12-08 | Method for the purification of phosphoric acid |
GR960401701T GR3020332T3 (en) | 1992-06-08 | 1996-06-25 | Process for purifying phosphoric acid. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI922650A FI90966C (fi) | 1992-06-08 | 1992-06-08 | Fosforihapon puhdistusmenetelmä |
FI922650 | 1992-06-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI922650A0 true FI922650A0 (fi) | 1992-06-08 |
FI90966B FI90966B (fi) | 1994-01-14 |
FI90966C FI90966C (fi) | 1994-04-25 |
Family
ID=8535447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI922650A FI90966C (fi) | 1992-06-08 | 1992-06-08 | Fosforihapon puhdistusmenetelmä |
Country Status (17)
Country | Link |
---|---|
EP (1) | EP0647205B1 (fi) |
AT (1) | ATE138353T1 (fi) |
AU (1) | AU4073593A (fi) |
BG (1) | BG61396B1 (fi) |
CZ (1) | CZ284622B6 (fi) |
DE (1) | DE69302815T2 (fi) |
DK (1) | DK0647205T3 (fi) |
ES (1) | ES2088674T3 (fi) |
FI (1) | FI90966C (fi) |
GR (1) | GR3020332T3 (fi) |
HU (1) | HU214096B (fi) |
NO (1) | NO944706L (fi) |
PL (1) | PL170642B1 (fi) |
RO (1) | RO114319B1 (fi) |
RU (1) | RU2102313C1 (fi) |
SK (1) | SK280302B6 (fi) |
WO (1) | WO1993025472A1 (fi) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9573810B2 (en) | 2012-07-21 | 2017-02-21 | K-Technologies, Inc. | Processes for the removal and recovery of minor elements in wet-process phosphoric acid |
KR101600184B1 (ko) * | 2014-07-18 | 2016-03-07 | 오씨아이 주식회사 | 인산 용액 내 금속이온의 제거방법 |
CN109399591B (zh) * | 2018-12-26 | 2021-06-29 | 江苏新宏大集团有限公司 | 一种净化湿法磷酸的制备方法 |
CN111268659A (zh) * | 2020-03-18 | 2020-06-12 | 四川大学 | 湿法磷酸萃取液的电解还原再生方法及湿法磷酸萃取工艺 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3306702A (en) * | 1962-06-18 | 1967-02-28 | Nalco Chemical Co | Removal of metal salt contaminants from acidic aqueous liquids |
DE3022662A1 (de) * | 1980-06-18 | 1982-01-21 | Hoechst Ag, 6000 Frankfurt | Verfahren zur reduktion dreiwertigen eisens in nassverfahrensphosphorsaeure |
-
1992
- 1992-06-08 FI FI922650A patent/FI90966C/fi active IP Right Grant
-
1993
- 1993-06-07 ES ES93910074T patent/ES2088674T3/es not_active Expired - Lifetime
- 1993-06-07 EP EP93910074A patent/EP0647205B1/en not_active Expired - Lifetime
- 1993-06-07 SK SK1494-94A patent/SK280302B6/sk unknown
- 1993-06-07 DE DE69302815T patent/DE69302815T2/de not_active Expired - Fee Related
- 1993-06-07 HU HU9403505A patent/HU214096B/hu not_active IP Right Cessation
- 1993-06-07 CZ CZ943081A patent/CZ284622B6/cs not_active IP Right Cessation
- 1993-06-07 RO RO94-01957A patent/RO114319B1/ro unknown
- 1993-06-07 WO PCT/FI1993/000245 patent/WO1993025472A1/en active IP Right Grant
- 1993-06-07 AU AU40735/93A patent/AU4073593A/en not_active Abandoned
- 1993-06-07 RU RU94046263A patent/RU2102313C1/ru active
- 1993-06-07 AT AT93910074T patent/ATE138353T1/de not_active IP Right Cessation
- 1993-06-07 DK DK93910074.9T patent/DK0647205T3/da active
- 1993-06-07 PL PL93306712A patent/PL170642B1/pl unknown
-
1994
- 1994-12-06 NO NO944706A patent/NO944706L/no not_active Application Discontinuation
- 1994-12-08 BG BG99245A patent/BG61396B1/bg unknown
-
1996
- 1996-06-25 GR GR960401701T patent/GR3020332T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
CZ308194A3 (en) | 1995-07-12 |
NO944706D0 (no) | 1994-12-06 |
ATE138353T1 (de) | 1996-06-15 |
AU4073593A (en) | 1994-01-04 |
NO944706L (no) | 1994-12-06 |
GR3020332T3 (en) | 1996-09-30 |
SK280302B6 (sk) | 1999-11-08 |
FI90966C (fi) | 1994-04-25 |
FI90966B (fi) | 1994-01-14 |
EP0647205A1 (en) | 1995-04-12 |
HU214096B (en) | 1997-12-29 |
BG61396B1 (en) | 1997-07-31 |
SK149494A3 (en) | 1995-07-11 |
EP0647205B1 (en) | 1996-05-22 |
CZ284622B6 (cs) | 1999-01-13 |
PL170642B1 (pl) | 1997-01-31 |
ES2088674T3 (es) | 1996-08-16 |
HUT68275A (en) | 1995-06-28 |
WO1993025472A1 (en) | 1993-12-23 |
DE69302815T2 (de) | 1996-12-19 |
RO114319B1 (ro) | 1999-03-30 |
RU2102313C1 (ru) | 1998-01-20 |
BG99245A (bg) | 1995-06-30 |
DE69302815D1 (de) | 1996-06-27 |
DK0647205T3 (da) | 1996-08-05 |
RU94046263A (ru) | 1996-10-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MA21021A1 (fr) | Procede pour eliminer les impuretes cationiques de l'acide phosphorique de voie humide | |
BE874691A (fr) | Procede d'elimination des impuretes de l'acide phosphorique | |
AU7722896A (en) | Ion exchange process for separation of iron (iii) ions from aqueous sulfuric acid metal ion-containing solutions | |
MY108534A (en) | Process for purifying n-phosphonomethylgycine | |
FI922650A0 (fi) | Fosforihapon puhdistusmenetelmä | |
GB2142614B (en) | Process for removing impurities from wet process phosphoric acid | |
MA21898A1 (fr) | Procede de traitement de l'acide phosphorique pour en eliminer certains metaux lourds . | |
ZA835264B (en) | Process for removing heavy metal ions and arsenic from wet-processed phosphoric acid | |
YU43146B (en) | Process for the purification of phosphoric acid obtained by the wet method | |
MA20585A1 (fr) | Procede pour eliminer l'arsenic de solutions d'acides phosphoriques | |
DE3261063D1 (en) | Process for the removal of organic impurities from phosphoric acid | |
BE877787A (fr) | Procede d'epuration de l'acide sulfurique residuaire des procedes de nitration | |
MA19328A1 (fr) | Procede de recuperation de l'uranium (vi) present dans des solutions d'acide phosphorique . | |
MA21853A1 (fr) | Procede ameliore d'elimination des ions cadmium contenus dans l'acide phosphorique obtenu par voie humide . | |
IE780909L (en) | Removal of impurities from solutions containing dissolved¹metals. | |
BE887221A (fr) | Procede pour isoler l'uranium de l'acide phosphorique de voie humide | |
MA24949A1 (fr) | Procede d'elimination d'uranium de l'acide phosphorique | |
DE3475395D1 (en) | Process and apparatus for removing organic impurities from wet process phosphoric acid | |
BE894090A (fr) | Procede pour recuperer de l'uranium d'acide traite par voie humide | |
YU240283A (en) | Process for the elimination of organic nd inorganic impurities from phosphoric acid obtained by the "wet" method | |
PH25359A (en) | Continuous process for complete removal of organic impurities from, complete decolorization of prepurified wet process phosphoric acid | |
JPS57149813A (en) | Treatment of phosphoric acid extracted solution by ion exchange | |
FR2545076B1 (fr) | Procede de purification de l'acide phosphorique par extraction par solvant | |
MA21979A1 (fr) | Procede pour l'eloignement des metaux lourds de l'acide phosphorique . | |
ES8701132A1 (es) | Procedimiento de eliminacion de impurezas de una corriente organica de acido fosforico por via humeda |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: KEMIRA OY |
|
BB | Publication of examined application |