ES2051475T3 - Procedimiento para la purificacion de fluoruro de hidrogeno. - Google Patents

Procedimiento para la purificacion de fluoruro de hidrogeno.

Info

Publication number
ES2051475T3
ES2051475T3 ES90309749T ES90309749T ES2051475T3 ES 2051475 T3 ES2051475 T3 ES 2051475T3 ES 90309749 T ES90309749 T ES 90309749T ES 90309749 T ES90309749 T ES 90309749T ES 2051475 T3 ES2051475 T3 ES 2051475T3
Authority
ES
Spain
Prior art keywords
hydrogen fluoride
purification
procedure
anhydrous hydrogen
arsenic
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
Application number
ES90309749T
Other languages
English (en)
Inventor
William Henry Gumprecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of ES2051475T3 publication Critical patent/ES2051475T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Glass Compositions (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

UN PROCESO PARA LA PREPARACION DE FLUORURO DE HIDROGENO QUE IMPLICA EL TRATAMIENTO DE FLUORURO DE HIDROGENO ANHIDRO, QUE CONTIENE PRIMERAMENTE IMPUREZAS DE ARSENICO TRIVALENTES CON UN COMPUESTO DE AZUFRE CAPAZ DE SUMINISTRAR DE IONES DE SULFURO (POR EJEMPLO H SUB 2 S) PARA QUE PRECIPITE EL ARSENICO (P. EJ, COMO AS SUB 2 S SUB 3) SEGUIDO POR LA SEPARACION Y RECUPERACION (POR EJEMPLO POR DESTILACION O FILTRACION) DE FLUORURO DE HIDROGENO ANHIDRO PURIFICADO.
ES90309749T 1989-10-31 1990-09-06 Procedimiento para la purificacion de fluoruro de hidrogeno. Expired - Lifetime ES2051475T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/429,507 US4960580A (en) 1989-10-31 1989-10-31 Process for purifying hydrogen fluoride

Publications (1)

Publication Number Publication Date
ES2051475T3 true ES2051475T3 (es) 1994-06-16

Family

ID=23703557

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90309749T Expired - Lifetime ES2051475T3 (es) 1989-10-31 1990-09-06 Procedimiento para la purificacion de fluoruro de hidrogeno.

Country Status (12)

Country Link
US (1) US4960580A (es)
EP (1) EP0426286B1 (es)
JP (1) JPH03146401A (es)
KR (1) KR930001205B1 (es)
CN (1) CN1020883C (es)
AT (1) ATE104648T1 (es)
AU (1) AU635324B2 (es)
BR (1) BR9004586A (es)
CA (1) CA2024624A1 (es)
DE (1) DE69008306T2 (es)
ES (1) ES2051475T3 (es)
MX (1) MX171259B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689885B1 (fr) * 1992-04-14 1994-10-21 Atochem North America Elf Procédé pour inhiber la décomposition du 1,1-dichloro-1-fluoréthane.
US7371363B2 (en) * 2003-07-15 2008-05-13 Honeywell International Inc. Methods of purifying hydrogen fluoride
GB0427968D0 (en) * 2004-12-21 2005-01-26 Davy Process Technology Switze Process
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
CN101570318B (zh) * 2008-04-28 2011-12-14 多氟多化工股份有限公司 一种生产电子级氢氟酸的方法
WO2010061838A1 (ja) 2008-11-28 2010-06-03 国立大学法人京都大学 フッ化水素の精製方法
CN101538094B (zh) * 2009-04-10 2010-12-08 天津大学 脱砷离子筛再生废液的处理方法
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.
CN105947984A (zh) * 2016-05-20 2016-09-21 同济大学 一种从高浓度含氟废水中回收生产无水氟化氢生产工艺
CN108609585A (zh) * 2018-08-08 2018-10-02 宣城亨泰电子化学材料有限公司 一种氢氟酸除砷工艺

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE632837A (es) * 1962-06-04 1963-10-21
US3663382A (en) * 1969-08-19 1972-05-16 Du Pont Process of recovering hydrogen fluoride free of arsenic by distillation
US3687622A (en) * 1970-11-30 1972-08-29 Du Pont High pressure purification of hydrogen fluoride
US4032621A (en) * 1975-11-24 1977-06-28 E. I. Du Pont De Nemours And Company Preparation of hydrogen fluoride with low levels of arsenic, iron and sulfite
US4083941A (en) * 1977-04-18 1978-04-11 E. I. Du Pont De Nemours And Company Purification of anhydrous hydrogen fluoride
DE3003635C2 (de) * 1980-02-01 1985-07-11 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und Vorrichtung zur Entarsenierung arsenhaltiger Materialien
US4491570A (en) * 1984-05-03 1985-01-01 Pennwalt Corporation Removal of arsenic from hydrogen fluoride
CA1241774A (en) * 1984-05-23 1988-09-06 Bruce R. Conard Effluent treatment
US4668497A (en) * 1984-12-25 1987-05-26 Hashimoto Chemical Industries Co., Ltd. Process for purifying hydrogen fluoride
US4756899A (en) * 1987-02-12 1988-07-12 Allied-Signal Inc. Manufacture of high purity low arsenic anhydrous hydrogen fluoride
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
BR9004586A (pt) 1991-09-10
US4960580A (en) 1990-10-02
AU6259490A (en) 1991-05-09
EP0426286B1 (en) 1994-04-20
JPH03146401A (ja) 1991-06-21
DE69008306D1 (de) 1994-05-26
ATE104648T1 (de) 1994-05-15
EP0426286A1 (en) 1991-05-08
CN1051333A (zh) 1991-05-15
CN1020883C (zh) 1993-05-26
CA2024624A1 (en) 1991-05-01
AU635324B2 (en) 1993-03-18
KR910007797A (ko) 1991-05-30
KR930001205B1 (ko) 1993-02-22
MX171259B (es) 1993-10-14
DE69008306T2 (de) 1994-11-03

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