发明名称 |
Methods for the preparation of concentrated aqueous bromine solutions and high activity bromine-containing solids |
摘要 |
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 Cl<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 Cl<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.
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申请公布号 |
US2008095864(A1) |
申请公布日期 |
2008.04.24 |
申请号 |
US20070975499 |
申请日期 |
2007.10.19 |
申请人 |
HOWARTH JONATHAN N;HARVEY MICHAEL S |
发明人 |
HOWARTH JONATHAN N.;HARVEY MICHAEL S. |
分类号 |
A01N59/00;A01P15/00;A61K33/00 |
主分类号 |
A01N59/00 |
代理机构 |
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地址 |
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