C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/145
C01B 11/02 (2006.01)
Patent
CA 1263516
Abstract The present invention relates to a process for pro- duction of chlorine dioxide from an alkali metal chlorate, a mineral acid and a volatile reducing agent. The process is carried out in a vessel operated under subatmospheric pressure, whereby water is evaporized and withdrawn to- gether with chlorine dioxide and the alkali metal salt of the mineral acid is crystallized within the reaction vessel and withdrawn therefrom. According to the invention the utility of the volatile reducing agent is enhanced by the addition of the agent to the region of crystallization in the reaction vessel.
539728
Eka Nobel Ab
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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