METHOD AND APPARATUS FOR PRODUCING HYDROGEN FLUORIDE

Title:

METHOD AND APPARATUS FOR PRODUCING HYDROGEN FLUORIDE

Document Type and Number:

WIPO Patent Application WO/2002/004348

Kind Code:

A1

Abstract:

A reactor for use in the production of hydrogen fluoride through the reaction of fluorite with sulfuric acid which has a means for applying a shear force between contents therein and the inner surface thereof, characterized in that, as the material of at least a part of the portion of said means being opposite to the inner surface of the reactor, use is made of a metal material which comprises a material containing at least one element selected from the group consisting of nickel, chromium, cobalt, iron, tungsten and carbon or an alloy containing two or more elements selected from the above group, and tungsten carbide, in a proportion wherein tungsten carbide accounts for 30 to 90 wt % of the metal material. The reactor is effectively reduced with respect to the abrasion of the tip portion of the means for applying a shear force between contents (a reaction mixture) therein and the inner surface thereof.

Inventors:

NISHIMURA HIRONOBU (JP)
TAKEUCHI TOSHINOBU (JP)
HOMOTO YUKIO (JP)
EMA NORIO (JP)

Application Number:

PCT/JP2001/005868

Publication Date:

January 17, 2002

Filing Date:

July 06, 2001

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
NISHIMURA HIRONOBU (JP)
TAKEUCHI TOSHINOBU (JP)
HOMOTO YUKIO (JP)
EMA NORIO (JP)

International Classes:

B01F7/00; B01F15/00; B01J19/00; B01J19/02; B01J19/18; B01J19/20; C01B7/19; C01B17/96; C01F11/46; (IPC1-7): C01B7/19; B01J7/00; B01J19/00; C22C29/02; C22C32/00

Foreign References:

JPS5939703A	1984-03-05
JPH0440282B2	1992-07-02
JPS5759626A	1982-04-10
JPH01119639A	1989-05-11
JP2000001733A	2000-01-07
JPH08199284A	1996-08-06

Other References: