Process for preparing hydrogen fluoride in a rotary tube...

Details Process for preparing hydrogen fluoride in a rotary tube... Process for preparing hydrogen fluoride in a rotary tube...

C - Chemistry, Metallurgy

01

B

C01B 7/19 (2006.01)

Patent

CA 2351752

The invention relates to a novel process for preparing hydrogen fluoride in a uniformly high conversion at a high space-time yield with minimal energy consumption by reaction of fluorspar with sulfuric acid in a rotary tube furnace, in which the furnace is divided into three equal-sized zones, each of which is heated indirectly by means of from 1 to 12 independent combustion chambers, there being a temperature gradient between the zones such that the first zone has the highest temperature and the third zone has the lowest temperature.

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