发明名称 |
PROCESS FOR THE PRODUCTION OF CHLORINE DIOXIDE |
摘要 |
A process for the production of chlorine dioxide by reacting in a reaction vessel an alkali metal chlorate, mineral acid and a reducing agent in such proportions that chlorine dioxide is produced in a reaction medium which is maintained at a temperature of from about 50 .degree.C to about 100 .degree.C and at an acidity within a range of from about 5 N to about 11 N. The reaction medium is subjected to subatmospheric pressure sufficient for evaporating water, a mixture of chlorine dioxide, oxygen and water vapour being withdrawn from an evaporation zone in the reaction vessel, and alkali metal sulfate being precipitated in a crystallization zone in the reaction vessel. As the reducing agent hydrogen peroxide is used.
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申请公布号 |
CA2028550(C) |
申请公布日期 |
1998.10.27 |
申请号 |
CA19902028550 |
申请日期 |
1990.10.25 |
申请人 |
EKA NOBEL INC. |
发明人 |
ENGSTROEM, JOERGEN;FALGEN, HELENA |
分类号 |
C01B11/02;C01D5/02;D21C9/14;D21C9/147;(IPC1-7):C01B11/02 |
主分类号 |
C01B11/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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