发明公开
EP2898141A4 PROCESS FOR MAKING PARTLY-HYDROLYZED CELLULOSE USING COMPRESSED CELLULOSIC MATERIALS
有权
VERFAHREN ZUR HERSTELLUNG TEILWEISE HYDROLYSIERTER CELLULOSE MITHILFE KOMPRIMIERTER CELLULOSEMATERIALIEN
- 专利标题： PROCESS FOR MAKING PARTLY-HYDROLYZED CELLULOSE USING COMPRESSED CELLULOSIC MATERIALS
- 专利标题（中）： VERFAHREN ZUR HERSTELLUNG TEILWEISE HYDROLYSIERTER CELLULOSE MITHILFE KOMPRIMIERTER CELLULOSEMATERIALIEN
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申请号： EP12885040申请日： 2012-09-20
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公开(公告)号： EP2898141A4公开(公告)日： 2016-07-06
- 发明人: LOCKHART JAMES M , WEARING JAMES T , GULAMHUSEIN ALI , HOBENSHIELD EVAN J , DEVRIES DURK
- 申请人： NORAM ENGINEERING AND CONSTRUCTORS LTD
- 专利权人： NORAM ENGINEERING AND CONSTRUCTORS LTD
- 当前专利权人： NORAM ENGINEERING AND CONSTRUCTORS LTD
- 优先权： CA2012050658 2012-09-20
- 主分类号： D21C9/00
- IPC分类号： D21C9/00 ; D21C3/04 ; D21C3/06
摘要：
A method and apparatus for contacting and reacting fine cellulosic material with acid to produce partly-hydrolyzed cellulose, in which the cellulose is compressed to form higher density material, resulting in reduced consumption of acid and increased uniformity of reaction times. Cellulosic material, such as ground wood pulp, is compressed to reduce the interstitial spaces therein. The compressed material is contacted with an acid, such as sulfuric acid, which is allowed to wick into the interstitial spaces and react with the cellulose to produce partly-hydrolyzed cellulose.
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