发明名称 |
Preparation of concentrated bromine solutions and high activity bromine solids |
摘要 |
<p>The invention includes convenient methods of preparing: (1) highly concentrated liquid bromine-containing biocidal solutions, (2) highly concentrated mixed halogen liquid bromine and chlorine-containing biocidal solutions, and (3) high-activity bromine containing biocidal solids, all having excellent physical and chemical stability. One method yields solutions that have concentrations of bromine in excess of 18% as Br<Sub>2</Sub> (8% as C1<Sub>2</Sub>) in which the mole ratio of hydroxide ion to hydrogen ion source is at least 1.9:1. Another method employs elemental bromine in conjunction with a solid organic or inorganic halogenating agent to yield halogen solutions at concentrations greater than 22.9% as Br<Sub>2</Sub> (10.2% as C1<Sub>2</Sub>). This method can be performed under conditions that exceed the solubility of the active ingredient such that it crystallizes and is recovered as a hydrated or anhydrous salt in good yield.</p> |
申请公布号 |
EP2359694(A3) |
申请公布日期 |
2011.12.21 |
申请号 |
EP20110157553 |
申请日期 |
2004.05.10 |
申请人 |
ENVIRO TECH CHEMICAL SERVICES INC. |
发明人 |
HOWARTH, JONATHAN, N.;HARVEY, MICHAEL, S. |
分类号 |
A01N59/00;A01N25/22;A01N41/08;A01N43/64;A01N59/02;A01P1/00;C02F1/50;C02F1/76 |
主分类号 |
A01N59/00 |
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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