GB1505918A - Removal - Google Patents

Removal

Info

Publication number
GB1505918A
GB1505918A GB4341675A GB4341675A GB1505918A GB 1505918 A GB1505918 A GB 1505918A GB 4341675 A GB4341675 A GB 4341675A GB 4341675 A GB4341675 A GB 4341675A GB 1505918 A GB1505918 A GB 1505918A
Authority
GB
United Kingdom
Prior art keywords
fluoride
gas
particles
metal fluorides
contacting
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
GB4341675A
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.)
Pennwalt Corp
Original Assignee
Pennwalt Corp
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
Priority claimed from US05/560,907 external-priority patent/US3976447A/en
Application filed by Pennwalt Corp filed Critical Pennwalt Corp
Publication of GB1505918A publication Critical patent/GB1505918A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • 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
    • B01D53/02—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 by adsorption, e.g. preparative gas chromatography
    • 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
    • B01D53/14—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 by absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Treating Waste Gases (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

1505918 HF removal PENNWALT CORP 22 Oct 1975 [21 March 1975] 43416/75 Heading C1A [Also in Divisions C2 and B1] HF is removed from anhydrous gas mixtures, containing at least one other gas which is inert to alkaline earth metal fluorides, by contacting with anhydrous calcium or barium fluoride under anhydrous conditions; the gas mixture contains up to 20 wt. per cent of HF and the fluoride is prepared, preferably in situ, by the fluorination of particles of the corresponding chloride under anhydrous conditions. The particles preferably have a particle size range of 0À025 to 0À375 inch and the contacting process is preferably carried out at 60‹ to 130‹ F. at from atmospheric pressure to 250 p.s.i.g. The metal fluorides may be subsequently treated to desorb HF and regenerate the fluoride which may then be recycled.
GB4341675A 1975-03-21 1975-10-22 Removal Expired GB1505918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/560,907 US3976447A (en) 1973-04-26 1975-03-21 Removal of hydrogen fluoride from gaseous mixture by absorption on alkaline earth metal fluoride

Publications (1)

Publication Number Publication Date
GB1505918A true GB1505918A (en) 1978-04-05

Family

ID=24239858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4341675A Expired GB1505918A (en) 1975-03-21 1975-10-22 Removal

Country Status (8)

Country Link
JP (1) JPS6035172B2 (en)
CA (1) CA1052292A (en)
DE (1) DE2608169A1 (en)
ES (1) ES441954A1 (en)
FR (1) FR2304388A1 (en)
GB (1) GB1505918A (en)
IT (1) IT1052322B (en)
NL (1) NL185328C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200621A (en) * 1987-02-06 1988-08-10 Coal Ind Treatment of gases
CN114042432A (en) * 2021-11-05 2022-02-15 临海市利民化工有限公司 Rectifying tower filler for dry separation of hydrogen chloride and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024053704A1 (en) * 2022-09-09 2024-03-14 株式会社レゾナック Method for producing hydrogen fluoride adsorbent

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA991822A (en) * 1971-06-16 1976-06-29 Dhirendra R. Merchant Purification of gaseous hydrogen chloride
DE2459272C3 (en) * 1974-12-14 1978-08-17 Fa. Hermann Wegener, 3000 Hannover Compound for removing environmentally harmful gases, in particular sulfur oxides, hydrogen sulfide and hydrogen halides from industrial waste gases

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200621A (en) * 1987-02-06 1988-08-10 Coal Ind Treatment of gases
CN114042432A (en) * 2021-11-05 2022-02-15 临海市利民化工有限公司 Rectifying tower filler for dry separation of hydrogen chloride and preparation method thereof
CN114042432B (en) * 2021-11-05 2023-04-11 临海市利民化工有限公司 Rectifying tower filler for dry separation of hydrogen chloride and preparation method thereof

Also Published As

Publication number Publication date
IT1052322B (en) 1981-06-20
JPS51126395A (en) 1976-11-04
FR2304388B1 (en) 1979-07-06
JPS6035172B2 (en) 1985-08-13
DE2608169A1 (en) 1976-10-14
ES441954A1 (en) 1977-05-01
NL7512200A (en) 1976-09-23
CA1052292A (en) 1979-04-10
NL185328B (en) 1989-10-16
NL185328C (en) 1990-03-16
FR2304388A1 (en) 1976-10-15
DE2608169C2 (en) 1987-05-27

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941022