CA977934A - Removal of hf from an hf-containing gas - Google Patents

Removal of hf from an hf-containing gas

Info

Publication number
CA977934A
CA977934A CA140,787A CA140787A CA977934A CA 977934 A CA977934 A CA 977934A CA 140787 A CA140787 A CA 140787A CA 977934 A CA977934 A CA 977934A
Authority
CA
Canada
Prior art keywords
removal
containing gas
gas
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
Application number
CA140,787A
Other languages
English (en)
Other versions
CA140787S (en
Inventor
Norman E. West
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 CA977934A publication Critical patent/CA977934A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/20—Halides
    • C01F11/22—Fluorides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/68—Halogens or halogen compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Geology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
CA140,787A 1971-05-12 1972-04-27 Removal of hf from an hf-containing gas Expired CA977934A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14275571A 1971-05-12 1971-05-12

Publications (1)

Publication Number Publication Date
CA977934A true CA977934A (en) 1975-11-18

Family

ID=22501142

Family Applications (1)

Application Number Title Priority Date Filing Date
CA140,787A Expired CA977934A (en) 1971-05-12 1972-04-27 Removal of hf from an hf-containing gas

Country Status (7)

Country Link
US (1) US3743704A (it)
CA (1) CA977934A (it)
DE (1) DE2223300A1 (it)
FR (1) FR2137790B1 (it)
GB (1) GB1342703A (it)
IT (1) IT955427B (it)
NL (1) NL7206444A (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1400862A (en) * 1972-08-24 1975-07-16 Fitzwilton Ltd Production of hydrogen fluoride
US4154804A (en) * 1977-12-22 1979-05-15 Allied Chemical Corporation Novel calcium chloride scrubbing bath
US4695290A (en) * 1983-07-26 1987-09-22 Integrated Carbons Corporation Integrated coal cleaning process with mixed acid regeneration
US4985220A (en) * 1988-08-08 1991-01-15 Mobil Oil Corporation Hydrogen fluoride vapor containment
JP2592118B2 (ja) * 1988-12-02 1997-03-19 三菱重工業株式会社 排ガスの処理方法
US5074770A (en) * 1989-08-30 1991-12-24 Intellex Corporation Integrated vacuum forming/reaction injection molding apparatus for manufacturing a shaped polymeric laminate article
JP4085520B2 (ja) * 1999-06-16 2008-05-14 三菱マテリアル株式会社 劣化ｕｆ６の処理設備及びその処理方法
JP4305633B2 (ja) * 2003-04-24 2009-07-29 信越化学工業株式会社 アミド化合物の精製方法
JP3801187B2 (ja) * 2003-08-28 2006-07-26 セイコーエプソン株式会社 薬液再処理方法及び、蛍石の製造方法
EP2952478B1 (en) 2014-06-05 2019-04-17 3M Innovative Properties Company Method for the production of free flowing synthetic calcium fluoride and use thereof
EP3246289B1 (en) 2016-05-19 2020-12-09 3M Innovative Properties Company Generation of calcium fluoride from hf gas streams
CN110104866A (zh) * 2019-06-14 2019-08-09 安徽浩悦环境科技有限责任公司 一种高浓度酸性氟化铵废液的处理装置及其处理工艺

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914474A (en) * 1954-07-29 1959-11-24 Phillips Petroleum Co Removal of fluorides from industrial waste waters

Also Published As

Publication number Publication date
FR2137790A1 (it) 1972-12-29
IT955427B (it) 1973-09-29
US3743704A (en) 1973-07-03
GB1342703A (en) 1974-01-03
FR2137790B1 (it) 1977-12-23
DE2223300A1 (de) 1972-11-30
NL7206444A (it) 1972-11-14

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