ES2077842T3 - Procedimiento para purificar fluoruro de hidrogeno. - Google Patents
Procedimiento para purificar fluoruro de hidrogeno.Info
- Publication number
- ES2077842T3 ES2077842T3 ES91904074T ES91904074T ES2077842T3 ES 2077842 T3 ES2077842 T3 ES 2077842T3 ES 91904074 T ES91904074 T ES 91904074T ES 91904074 T ES91904074 T ES 91904074T ES 2077842 T3 ES2077842 T3 ES 2077842T3
- Authority
- ES
- Spain
- Prior art keywords
- hydrogen fluoride
- impurities
- anhydrated
- procedure
- high purity
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
- C01B7/195—Separation; Purification
- C01B7/196—Separation; Purification by distillation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
- C01B7/195—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Hydrogen, Water And Hydrids (AREA)
Abstract
SE PRESENTA UN PROCESO PARA MANUFACTURAR FLUORURO DE HIDROGENO ANHIDRIDO DE ALTA PUREZA (HF) QUE TENGA BAJOS NIVELES DE IMPUREZAS OXIDABLES MEDIANTE LA OXIDACION ELECTROLITICA DE LAS IMPUREZAS. ESPECIFICAMENTE, LAS IMPUREZAS DE ARSENICO TRIVALENTE EN EL FLUORURO DE HIDROGENO ANHIDRIDO SE OXIDAN CONVIERTIENDOSE EN UN COMPUESTO DE ARSENICO PENTAVALENTE NO VOLATIL. LA MEZCLA RESULTANTE SE DESTILA PARA RECUPERAR EL FLUORURO DE HIDROGENO ANHIDRIDO DE ALTA PUREZA CON BAJOS NIVELES DE IMPUREZAS DE ARSENICO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48743790A | 1990-03-02 | 1990-03-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2077842T3 true ES2077842T3 (es) | 1995-12-01 |
Family
ID=23935726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91904074T Expired - Lifetime ES2077842T3 (es) | 1990-03-02 | 1991-02-04 | Procedimiento para purificar fluoruro de hidrogeno. |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0517723B1 (es) |
JP (1) | JPH05504754A (es) |
CN (1) | CN1054574A (es) |
AU (1) | AU7243391A (es) |
BR (1) | BR9106091A (es) |
CA (1) | CA2076372A1 (es) |
DE (1) | DE69112391T2 (es) |
ES (1) | ES2077842T3 (es) |
MX (1) | MX172256B (es) |
TW (1) | TW222250B (es) |
WO (1) | WO1991013024A1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9896334B2 (en) | 2014-12-18 | 2018-02-20 | Mexichem Fluor, Sociedad Anonima de Capical Variable | Process for purification of hydrofluoric acid including obtaining arsenious acid by-product |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5108559A (en) * | 1991-12-17 | 1992-04-28 | E. I. Du Pont De Nemours And Company | Process for purifying hydrogen fluoride |
DE4303836C1 (de) * | 1993-02-10 | 1994-03-17 | Bayer Ag | Verfahren zur Reinigung von Fluorwasserstoff |
DE4303837A1 (de) * | 1993-02-10 | 1994-08-11 | Bayer Ag | Verfahren zur Reinigung von Fluorwasserstoff |
US7371363B2 (en) * | 2003-07-15 | 2008-05-13 | Honeywell International Inc. | Methods of purifying hydrogen fluoride |
CN100546903C (zh) * | 2007-08-06 | 2009-10-07 | 江阴市润玛电子材料有限公司 | 超高纯氢氟酸的提纯方法 |
CN101570319B (zh) * | 2008-04-28 | 2011-04-06 | 多氟多化工股份有限公司 | 一种生产超净高纯氢氟酸的方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4929435A (en) * | 1987-02-12 | 1990-05-29 | Allied-Signal Inc. | Manufacture of high purity low arsenic anhydrous hydrogen fluoride |
-
1991
- 1991-02-04 JP JP50445991A patent/JPH05504754A/ja active Pending
- 1991-02-04 BR BR919106091A patent/BR9106091A/pt not_active Application Discontinuation
- 1991-02-04 CA CA 2076372 patent/CA2076372A1/en not_active Abandoned
- 1991-02-04 ES ES91904074T patent/ES2077842T3/es not_active Expired - Lifetime
- 1991-02-04 WO PCT/US1991/000573 patent/WO1991013024A1/en active IP Right Grant
- 1991-02-04 EP EP91904074A patent/EP0517723B1/en not_active Expired - Lifetime
- 1991-02-04 DE DE69112391T patent/DE69112391T2/de not_active Expired - Fee Related
- 1991-02-04 AU AU72433/91A patent/AU7243391A/en not_active Abandoned
- 1991-02-28 TW TW80101616A patent/TW222250B/zh active
- 1991-03-01 MX MX2475591A patent/MX172256B/es unknown
- 1991-03-02 CN CN 91101222 patent/CN1054574A/zh active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9896334B2 (en) | 2014-12-18 | 2018-02-20 | Mexichem Fluor, Sociedad Anonima de Capical Variable | Process for purification of hydrofluoric acid including obtaining arsenious acid by-product |
Also Published As
Publication number | Publication date |
---|---|
BR9106091A (pt) | 1993-02-24 |
WO1991013024A1 (en) | 1991-09-05 |
EP0517723B1 (en) | 1995-08-23 |
CN1054574A (zh) | 1991-09-18 |
MX172256B (es) | 1993-12-09 |
CA2076372A1 (en) | 1991-09-03 |
EP0517723A1 (en) | 1992-12-16 |
DE69112391D1 (de) | 1995-09-28 |
AU7243391A (en) | 1991-09-18 |
TW222250B (es) | 1994-04-11 |
DE69112391T2 (de) | 1996-04-04 |
JPH05504754A (ja) | 1993-07-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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