MX172256B - Proceso para purificar fluoruro de hidrogeno anhidro - Google Patents

Proceso para purificar fluoruro de hidrogeno anhidro

Info

Publication number
MX172256B
MX172256B MX2475591A MX2475591A MX172256B MX 172256 B MX172256 B MX 172256B MX 2475591 A MX2475591 A MX 2475591A MX 2475591 A MX2475591 A MX 2475591A MX 172256 B MX172256 B MX 172256B
Authority
MX
Mexico
Prior art keywords
hydrogen fluoride
anhydro
anhydrous hydrogen
purify hydrogen
impurities
Prior art date
Application number
MX2475591A
Other languages
English (en)
Inventor
Craig Thompson Barker
William C Ziegenhain
Eileen Genieve Edwards
Francisco Jose Freire
Jon L Howell
Kaye Lamarr Motz
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of MX172256B publication Critical patent/MX172256B/es

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

La presente invención se refiere a un proceso para la purificación de fluoruro de hidrógeno anhidro, caracterizado porque consiste esencialmente de las etapas de: a) pasar una cantidad efectiva de corriente directa a traves de fluoruro de hidrógeno anhidro que contiene impurezas de arsenico trivalente para oxidar substancialmente todo el arsenico trivalente a arsenico pentavalente; y b) destilar la mezcla resultante, por lo que se recupera fluoruro de hidrógeno anhidro con niveles reducidos de impurezas.
MX2475591A 1990-03-02 1991-03-01 Proceso para purificar fluoruro de hidrogeno anhidro MX172256B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48743790A 1990-03-02 1990-03-02

Publications (1)

Publication Number Publication Date
MX172256B true MX172256B (es) 1993-12-09

Family

ID=23935726

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2475591A MX172256B (es) 1990-03-02 1991-03-01 Proceso para purificar fluoruro de hidrogeno anhidro

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)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
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
MX357878B (es) 2014-12-18 2018-07-27 Mexichem Fluor Sa De Capital Variable Proceso para la purificación del ácido fluorhídrico incluyendo la obtención del subproducto ácido arsenioso.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
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

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
ES2077842T3 (es) 1995-12-01
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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