METHOD OF REMOVING ALKYLENE HALOGENOHYDRIN FROM CELLULOSE ETHER
摘要
In a method of removing alkylene halogenohydrin from a cellulose ether the cellulose ether is provided, water is added to the cellulose ether and subsequently alkylene halogenohydrin and water is removed from the cellulose ether by evaporation. Alternatively steam or a steam mixture can be sparged across or through the cellulose ether to remove halogenohydrin from the cellulose ether.
申请公布号
EP2736614(B1)
申请公布日期
2016.06.29
申请号
EP20120738364
申请日期
2012.07.17
申请人
DOW GLOBAL TECHNOLOGIES LLC
发明人
ENGELMAN, RICHARD A.;ZIETTLOW, DAVID W.;SCHEID JR., ROBERT E.;MALLON, CHARLES B.;SPREHE, MATTHIAS;ARTHUR, ANDREW C.