公开(公告)号：US4584076A

公开(公告)日：1986-04-22

申请号：US665882

申请日：1984-10-29

申请人： Eugen Edel ,  Josef Feckl ,  Clemens Grambow ,  Albert Huber ,  Dietrich Wabner

发明人： Eugen Edel ,  Josef Feckl ,  Clemens Grambow ,  Albert Huber ,  Dietrich Wabner

IPC分类号： D21C11/00 ,  B01D13/02

CPC分类号： D21C11/0042

摘要： The invention relates to a method and apparatus for recovering lignin and kali from an alkaline lignin solution. One or more electrolytic cells are used to anodically acidify the lignin and simultaneously cathodically regenerate alkali. The invention is especially advantageous for the preparation of pure lignin and alkali from the waste liquor of a cellulose process.

摘要翻译： 本发明涉及从碱性木质素溶液中回收木质素和碱的方法和装置。 一个或多个电解池被用于阳离子酸化木质素并同时阴极再生碱。 本发明特别有利于从纤维素工艺的废液中制备纯木质素和碱。

公开(公告)号：US4496426A

公开(公告)日：1985-01-29

申请号：US482462

申请日：1983-04-06

申请人： Manfred Baumeister ,  Eugen Edel

发明人： Manfred Baumeister ,  Eugen Edel

IPC分类号： C08B37/14 ,  D21C3/20 ,  D21C3/02

CPC分类号： D21C3/20 ,  C08B37/0057 ,  C08H6/00

摘要： This invention relates generally to the extraction process and provides a novel process and reactor for the continuous extraction of vegetable-fibre material such as wood chips. The process comprises a two stage process, the first stage comprising an extraction process using a methanol:water mixture and the second stage using the same extraction liquid as the first with a greater proportion of water, with sodium hydroxide and anthraquinone. A part of the extraction liquid which is saturated by extraction substances is continually carried away at each stage and after extraction, the mixture is subjected to washing. This process has eliminated the heavy pollution produced by the prior art processes and also has reduced the cost and complexity of the prior art processes.

摘要翻译： 本发明一般涉及提取方法，并提供了一种用于连续提取木屑等植物纤维材料的新工艺和反应器。 该方法包括两阶段方法，第一阶段包括使用甲醇：水混合物的提取方法，第二阶段使用与较大比例的水相同的第一萃取液与氢氧化钠和蒽醌。 萃取物饱和的萃取液的一部分在每个阶段持续排出，萃取后，将混合物进行洗涤。 该方法消除了现有技术方法产生的重污染，并降低了现有技术方法的成本和复杂性。