GB1291341A - Process for the removal of hydrogen fluoride from waste gases - Google Patents

Process for the removal of hydrogen fluoride from waste gases

Info

Publication number
GB1291341A
GB1291341A GB1926670A GB1926670A GB1291341A GB 1291341 A GB1291341 A GB 1291341A GB 1926670 A GB1926670 A GB 1926670A GB 1926670 A GB1926670 A GB 1926670A GB 1291341 A GB1291341 A GB 1291341A
Authority
GB
United Kingdom
Prior art keywords
tower
water
removal
washing
hydrogen fluoride
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
GB1926670A
Inventor
Armin Peter
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.)
LEIPZIG CHEMIEANLAGEN
Original Assignee
LEIPZIG CHEMIEANLAGEN
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 LEIPZIG CHEMIEANLAGEN filed Critical LEIPZIG CHEMIEANLAGEN
Priority to GB1926670A priority Critical patent/GB1291341A/en
Publication of GB1291341A publication Critical patent/GB1291341A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (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)

Abstract

1291341 Gas purification-hydrogen fluoride CHEMIEANLAGENBAU LEIPZIG VEB 22 April 1970 19263/70 Heading C1A A process for the removal of hydrogen fluoride from the effluent gases from a cement kiln in the manufacture of cement and sulphuric acid from phosphorus gypsum (i.e. fluorineontaminated calcium sulphate derived from wet process phosphoric acid plant) comprises washing the effluent gases in a washing tower with water to which phosphorus gypsum has been added before the water enters the tower. HF is thereby precipitated as calcium fluoride which may then be discharged from the washing tower in the form of a sludge. The wash water also serves to cool the gases, and after removal from the wash tower may be cooled in a trickle cooler fed by water recycling through a cooling tower. After a further addition of phosphorus gypsum, the cooled washing water may be recycled to the wash tower.
GB1926670A 1970-04-22 1970-04-22 Process for the removal of hydrogen fluoride from waste gases Expired GB1291341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1926670A GB1291341A (en) 1970-04-22 1970-04-22 Process for the removal of hydrogen fluoride from waste gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1926670A GB1291341A (en) 1970-04-22 1970-04-22 Process for the removal of hydrogen fluoride from waste gases

Publications (1)

Publication Number Publication Date
GB1291341A true GB1291341A (en) 1972-10-04

Family

ID=10126525

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1926670A Expired GB1291341A (en) 1970-04-22 1970-04-22 Process for the removal of hydrogen fluoride from waste gases

Country Status (1)

Country Link
GB (1) GB1291341A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees