GB1004389A - Process and apparatus for treating reaction gases in the manufacture of hydrofluoricacid - Google Patents

Process and apparatus for treating reaction gases in the manufacture of hydrofluoricacid

Info

Publication number
GB1004389A
GB1004389A GB3089362A GB3089362A GB1004389A GB 1004389 A GB1004389 A GB 1004389A GB 3089362 A GB3089362 A GB 3089362A GB 3089362 A GB3089362 A GB 3089362A GB 1004389 A GB1004389 A GB 1004389A
Authority
GB
United Kingdom
Prior art keywords
sulphuric acid
treating
fluorspar
oleum
condensation
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
GB3089362A
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.)
Buss AG
Original Assignee
Buss AG
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 Buss AG filed Critical Buss AG
Publication of GB1004389A publication Critical patent/GB1004389A/en
Expired 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
    • C01B7/191—Hydrogen fluoride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

Hydrofluoric acid is produced by treating fluorspar with hot sulphuric acid, charging the slurry into a reaction furnace to convert it into gypsum and hydrofluoric acid and injecting sulphuric acid into the gases issuing from the reaction chamber before they are passed to a condensation stage. After this treatment the gases may be subjected to simultaneous filtration and washing. The gases are preferably centrifuged with the sulphuric acid and the sulphuric acid may be recovered by partial condensation. Water formed in the partial condensation may be used to dilute oleum supplied to the sulphuric acid prior to injection. The sulphuric acid used for treating the fluorspar may be added to that recovered by the partial condensation and also that formed by diluting the oleum, and the resultant liquid used for treating the fluorspar. The liquid used for treating the fluorspar may be heated by heat given out during the condensation and the oleum dilution.
GB3089362A 1961-09-02 1962-08-13 Process and apparatus for treating reaction gases in the manufacture of hydrofluoricacid Expired GB1004389A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1961B0063886 DE1265723B (en) 1961-09-02 1961-09-02 Process for the treatment of reaction gases in the production of hydrofluoric acid

Publications (1)

Publication Number Publication Date
GB1004389A true GB1004389A (en) 1965-09-15

Family

ID=6974178

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3089362A Expired GB1004389A (en) 1961-09-02 1962-08-13 Process and apparatus for treating reaction gases in the manufacture of hydrofluoricacid

Country Status (5)

Country Link
BE (1) BE621924A (en)
CH (1) CH477363A (en)
DE (1) DE1265723B (en)
GB (1) GB1004389A (en)
NL (2) NL282581A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725536A (en) * 1968-02-26 1973-04-03 R Gentili Method of the continuous production of hydrofluoric acid
US5271918A (en) * 1991-03-11 1993-12-21 Alliedsignal Inc. Furnace gas - sulfuric acid contact process for HF manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725536A (en) * 1968-02-26 1973-04-03 R Gentili Method of the continuous production of hydrofluoric acid
US5271918A (en) * 1991-03-11 1993-12-21 Alliedsignal Inc. Furnace gas - sulfuric acid contact process for HF manufacture

Also Published As

Publication number Publication date
NL282581A (en)
CH477363A (en) 1969-08-31
DE1265723B (en) 1968-04-11
BE621924A (en) 1962-12-17
NL134279C (en) 1972-01-17

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