KR890700538A - 고순도 저비소 무수불화수소 제조공정 - Google Patents
고순도 저비소 무수불화수소 제조공정Info
- Publication number
- KR890700538A KR890700538A KR1019880701263A KR880701263A KR890700538A KR 890700538 A KR890700538 A KR 890700538A KR 1019880701263 A KR1019880701263 A KR 1019880701263A KR 880701263 A KR880701263 A KR 880701263A KR 890700538 A KR890700538 A KR 890700538A
- Authority
- KR
- South Korea
- Prior art keywords
- arsenic
- amount
- hydrogen fluoride
- catalyst
- hydrogen peroxide
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G28/00—Compounds of arsenic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (13)
- (a)부수불화수소(anhydrous hydrogen fluoride)내의 휘발성 2가(價)비소불순물(arsenic impurities)을 비휘발성 5가 비소화물로 산화시키기에 충분한 온도 및 시간으로, 촉매적으로 효과량의 (1)몰리브덴(molybdenum) 혹은 하나의 무기몰리브덴화합물 및 (2)인산염화합물(a phosphate compound)을 포함하는 촉매의 존재하에, 무수불화수소을 비소불순물을 산화시키기위한 효과량의 과산화수소(hydrogen peroxide)와 접촉시키는 단계 : 및 (b)상기 결과혼합물을 증류하고 비소불순물의 수준이 감소된 고순도의 무수불화수소를 회수하는단계, 를 포함함을 특징으로 하는, 비소오염된 무수불화수소로부터 비소불순물의 수준이 낮은 고순도 무수불화수소를 제조하는 공정.
- 1항에 있어서, 비소오염된 불화수소는 상기비소불순물의 과산화수소 산화를 방해하는 량의 유기오염(organic contaminent)이 없는것을 특징으로 하는 제조공정.
- 2항에 있어서, 상기 3가 비소불순물을 상기 5가 비소화합물로 산화시키는데 요구되는 과산화수소의 이론적량 이상의 량이 사용됨을 특징으로 하는 제조공정.
- 3항에 있어서, 상기 촉매는 몰리브덴산암모늄(ammonium molybdate)을 포함함을 특징으로 하는 제조공정.
- 3항에 있어서, 상기촉매는 피로인산나트륨(sodium pyrophosphate)을 포함함을 특징으로 하는 제조공정.
- 3항에 있어서, 상기촉매는 인산(phosphoric acid)을 포함함을 특징으로 하는 제조공정.
- 3항에 있어서, 상기촉매는 몰리브덴산암모늄과 피로인산나트륨을 포함함을 특징으로 하는 제조공정.
- 3항에 있어서, 상기촉매는 몰리브덴산암모늄과 인산을 포함함을 특징으로 하는 제조공정.
- 3항에 있어서, 사용되는 과산화수소의 량은 이론적인량의 최소 3배임을 특징으로 하는 제조공정.
- 3항에 있어서, 촉매내의 몰리브덴 성분의량은 100% HF를 기준으로 하여 최소 약 3.7ppm이며, 촉매내의 인산성분(phosphate component)량의 100% HF를 기준으로 최소약 3.5ppm임을 특징으로 하는 제조공정.
- 1항에 있어서, 비소오염된 불화수소는 상기 비소불순물의 과산화수소 산화를 방해하는 량의 유기불순물을 포함하며, 상기 비소 불순물과 과산화수소의 반응은 존재하는 유기불순물을 산화시키기 위한 효과량의 산화제가 부가적으로 존재하에 실시되는 것을 특징으로 하는 제조공정.
- 11항에 있어서, 상기 산화제는 질산 혹은 그 염산인것을 특징으로 하는 제조공정.
- 12항에 있어서, 산화제는 질산나트륨(sodium nitrate)임을 특징으로 하는 제조공정.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/014,422 US4756899A (en) | 1987-02-12 | 1987-02-12 | Manufacture of high purity low arsenic anhydrous hydrogen fluoride |
US014,422 | 1987-02-12 | ||
US014422 | 1987-02-12 | ||
PCT/US1988/000394 WO1988006139A1 (en) | 1987-02-12 | 1988-02-10 | Manufacture of high purity low arsenic anhydrous hydrogen fluoride |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890700538A true KR890700538A (ko) | 1989-04-25 |
KR950014205B1 KR950014205B1 (ko) | 1995-11-23 |
Family
ID=21765388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880701263A KR950014205B1 (ko) | 1987-02-12 | 1988-02-10 | 고순도 저비소 무수 불화수소 제조공정 |
Country Status (11)
Country | Link |
---|---|
US (1) | US4756899A (ko) |
EP (2) | EP0280439B1 (ko) |
JP (1) | JP2584505B2 (ko) |
KR (1) | KR950014205B1 (ko) |
AU (1) | AU609096B2 (ko) |
CA (1) | CA1305600C (ko) |
DE (1) | DE3865037D1 (ko) |
ES (1) | ES2025288B3 (ko) |
GR (1) | GR3002804T3 (ko) |
MX (1) | MX165894B (ko) |
WO (1) | WO1988006139A1 (ko) |
Families Citing this family (29)
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 |
US4990320A (en) * | 1989-10-31 | 1991-02-05 | E. I. Du Pont De Nemours And Company | Process for purifying hydrogen fluoride |
US4960580A (en) * | 1989-10-31 | 1990-10-02 | E. I. Du Pont De Nemours And Company | Process for purifying hydrogen fluoride |
US4954330A (en) * | 1989-11-30 | 1990-09-04 | E. I. Dupont De Nemours And Company | Process for purifying hydrogen fluoride |
US5089241A (en) * | 1990-12-20 | 1992-02-18 | Allied-Signal Inc. | Process for converting hexafluoroarsenic acid or any salt thereof to arsenic acid or salt thereof which can then be rendered nonhazardous |
US5108559A (en) * | 1991-12-17 | 1992-04-28 | E. I. Du Pont De Nemours And Company | Process for purifying hydrogen fluoride |
US5785820A (en) * | 1994-01-07 | 1998-07-28 | Startec Ventures, Inc. | On-site manufacture of ultra-high-purity hydrofluoric acid for semiconductor processing |
WO1996039266A1 (en) * | 1995-06-05 | 1996-12-12 | Startec Ventures, Inc. | On-site generation of ultra-high-purity buffered-hf for semiconductor processing |
US5846387A (en) * | 1994-01-07 | 1998-12-08 | Air Liquide Electronics Chemicals & Services, Inc. | On-site manufacture of ultra-high-purity hydrochloric acid for semiconductor processing |
US5722442A (en) * | 1994-01-07 | 1998-03-03 | Startec Ventures, Inc. | On-site generation of ultra-high-purity buffered-HF for semiconductor processing |
US6350425B2 (en) | 1994-01-07 | 2002-02-26 | Air Liquide America Corporation | On-site generation of ultra-high-purity buffered-HF and ammonium fluoride |
US5496778A (en) * | 1994-01-07 | 1996-03-05 | Startec Ventures, Inc. | Point-of-use ammonia purification for electronic component manufacture |
WO1996039264A1 (en) * | 1995-06-05 | 1996-12-12 | Startec Ventures, Inc. | On-site manufacture of ultra-high-purity hydrochloric acid for semiconductor processing |
EP0830316A1 (en) * | 1995-06-05 | 1998-03-25 | Startec Ventures, Inc. | Point-of-use ammonia purification for electronic component manufacture |
CN1190913A (zh) * | 1995-06-05 | 1998-08-19 | 斯塔泰克文切斯公司 | 用于半导体加工的超高纯氢氟酸的现场制造 |
EP0831978B1 (en) * | 1995-06-05 | 2001-02-28 | Air Liquide America Corporation | On-site ammonia purification for semiconductor manufacture |
US6001223A (en) * | 1995-07-07 | 1999-12-14 | Air Liquide America Corporation | On-site ammonia purification for semiconductor manufacture |
EP0879211A1 (en) * | 1995-11-13 | 1998-11-25 | AlliedSignal Inc. | Manufacture of very low arsenic hydrogen fluoride |
US6214173B1 (en) | 1996-06-05 | 2001-04-10 | Air Liquide Electronics Chemicals & Services, Inc. | On-site manufacture of ultra-high-purity nitric acid |
DE10031563B4 (de) | 2000-06-28 | 2009-01-29 | Lanxess Deutschland Gmbh | Verfahren zur Herstellung von perfluororganischen Verbindungen durch elektrochemische Fluorierung |
DE10031565B4 (de) | 2000-06-28 | 2006-02-23 | Bulan, Andreas | Verfahren zur Herstellung von perfluorierten organischen Verbindungen durch elektrochemische Fluorierung |
US20080003172A1 (en) * | 2006-06-29 | 2008-01-03 | Honeywell International Inc. | Continuous hydrolysis of hexafluoroarsenic acid |
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 |
CN102072833B (zh) * | 2010-12-17 | 2012-07-25 | 扬州高能新材料有限公司 | 以icp-ms法测定高纯砷中杂质元素的制样方法 |
US8834830B2 (en) | 2012-09-07 | 2014-09-16 | Midwest Inorganics LLC | Method for the preparation of anhydrous hydrogen halides, inorganic substances and/or inorganic hydrides by using as reactants inorganic halides and reducing agents |
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. |
RU2653034C9 (ru) * | 2017-06-01 | 2019-04-11 | Общество с ограниченной ответственностью "Новые химические продукты" | Способ извлечения фторида водорода из его водных растворов |
CN110589770A (zh) * | 2019-10-29 | 2019-12-20 | 浙江森田新材料有限公司 | 一种电子级氢氟酸的制备方法 |
CN115535965A (zh) * | 2022-10-13 | 2022-12-30 | 云南氟磷电子科技有限公司 | 一种氢氟酸连续除砷的方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE62309C (de) * | Dr. R. HIRSCH in Berlin W., Potsdamerstr. 113 | Verfahren zur Darstellung von Diphenylamin, o- und p-Amidodiphenyl | ||
DD62309A (ko) * | ||||
FR1335675A (fr) * | 1961-07-27 | 1963-08-23 | I C P M Ind Chimiche Porto Mar | Procédé pour l'élimination de composés d'arsenic et d'antimoine de l'acide fluorhdrique moyennant la formation de complexes, facilement séparables, entre l'arsenic et l'antimoine, le fluor et un métal alcalin |
BE632837A (ko) * | 1962-06-04 | 1963-10-21 | ||
US3689370A (en) * | 1970-02-20 | 1972-09-05 | Daikin Ind Ltd | Process for purifying hydrofluoric acid by distillation with an oxidizing agent and a ferrous salt |
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 |
DE2942545A1 (de) * | 1979-10-20 | 1981-06-04 | Riedel-De Haen Ag, 3016 Seelze | Verfahren zur herstellung einer gereinigten oxidationsbestaendigen anorganischen saeure und danach erhaltene saeure |
US4491570A (en) * | 1984-05-03 | 1985-01-01 | Pennwalt Corporation | Removal of arsenic from hydrogen fluoride |
JPH0238521B2 (ja) * | 1984-12-25 | 1990-08-30 | Hashimoto Chemical Ind | Futsukasuisosannoseiseiho |
-
1987
- 1987-02-12 US US07/014,422 patent/US4756899A/en not_active Expired - Lifetime
-
1988
- 1988-02-10 WO PCT/US1988/000394 patent/WO1988006139A1/en not_active Application Discontinuation
- 1988-02-10 DE DE8888301107T patent/DE3865037D1/de not_active Expired - Lifetime
- 1988-02-10 AU AU12971/88A patent/AU609096B2/en not_active Ceased
- 1988-02-10 JP JP63501932A patent/JP2584505B2/ja not_active Expired - Lifetime
- 1988-02-10 EP EP88301107A patent/EP0280439B1/en not_active Expired - Lifetime
- 1988-02-10 ES ES88301107T patent/ES2025288B3/es not_active Expired - Lifetime
- 1988-02-10 EP EP88902049A patent/EP0373163A1/en active Pending
- 1988-02-10 KR KR1019880701263A patent/KR950014205B1/ko not_active IP Right Cessation
- 1988-02-11 CA CA000558682A patent/CA1305600C/en not_active Expired - Lifetime
- 1988-02-11 MX MX010372A patent/MX165894B/es unknown
-
1991
- 1991-09-26 GR GR91401390T patent/GR3002804T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
EP0280439B1 (en) | 1991-09-25 |
AU1297188A (en) | 1988-09-14 |
US4756899A (en) | 1988-07-12 |
JPH02502277A (ja) | 1990-07-26 |
KR950014205B1 (ko) | 1995-11-23 |
EP0373163A1 (en) | 1990-06-20 |
AU609096B2 (en) | 1991-04-26 |
DE3865037D1 (de) | 1991-10-31 |
EP0280439A1 (en) | 1988-08-31 |
GR3002804T3 (en) | 1993-01-25 |
JP2584505B2 (ja) | 1997-02-26 |
MX165894B (es) | 1992-12-03 |
ES2025288B3 (es) | 1992-03-16 |
WO1988006139A1 (en) | 1988-08-25 |
CA1305600C (en) | 1992-07-28 |
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