发明名称 |
Activator for Pulp Bleaching |
摘要 |
A process for the bleaching of cellulosic fibres comprising the steps of (a) providing a water supply; (b) adding hydrogen peroxide to the stabilised water supply to form a hydrogen peroxide solution; (c) adjusting the pH of the hydrogen peroxide solution by adding alkali; mixing the pH adjusted solution resulting from step (c) to allow complete formation of perhydroxyl ion; (e) adding a carboxylic acid anhydride compound to the solution resulting from step (d); (f) mixing the solution resulting from step (e) to allow complete formation of percarboxylic acid to give a dilute solution of percarboxylic acid; and (g) contacting the solution with a suspension of cellulosic fibres.
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申请公布号 |
US2007246177(A1) |
申请公布日期 |
2007.10.25 |
申请号 |
US20050570140 |
申请日期 |
2005.06.10 |
申请人 |
MARLAND ALAN M;MATHEWS ALISON J;MILLER GARY |
发明人 |
MARLAND ALAN M.;MATHEWS ALISON J.;MILLER GARY |
分类号 |
D21C9/16 |
主分类号 |
D21C9/16 |
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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