| 摘要 |
PCT No. PCT/SE89/00679 Sec. 371 Date May 22, 1901 Sec. 102(e) Date May 22, 1991 PCT Filed Nov. 21, 1989 PCT Pub. No. WO90/05698 PCT Pub. Date May 31, 1990.The invention describes a procedure for production of chlorine dioxide where, in a primary reactor chlorate, sulphuric acid and a reducing agent with optional extra additions of chloride ions are reacted, the resulting gas mixture mainly containing chlorine dioxide and air are forced through a scrubber to an absorption tower for absorption of the product gas. Where the reactor solution is withdrawn from the reactor optionally to a secondary reactor in which reducing agent is also added, the procedure being characterized by that of the primary reactor solution is recirculated optionally via a cooler to the upper part of a scrubber and then returned to the reactor.
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