公开(公告)号：US06217706B1

公开(公告)日：2001-04-17

申请号：US09429397

申请日：1999-10-28

申请人： Hassan El-Shall ,  Brij M. Moudgil

发明人： Hassan El-Shall ,  Brij M. Moudgil

IPC分类号： D21B108

CPC分类号： D21C5/025 ,  Y02W30/648

摘要： A method of de-inking cellulosic fibrous materials comprising: a. admixing an alkaline reagent selected from the group consisting of ammonium hydroxide and hydrogen peroxide and mixtures thereof with an aqueous suspension of inked cellulosic fibrous material such that they react at the ink particle/cellulosic fiber interfaces to dislodge ink particles from the cellulosic materials; and b. removing the dislodged ink particles from the aqueous suspension.

摘要翻译： 一种脱墨纤维素纤维材料的方法，包括：a。 将选自氢氧化铵和过氧化氢的碱性试剂及其混合物与着色的纤维素纤维材料的水性悬浮液混合，使得它们在油墨颗粒/纤维素纤维界面反应以从纤维素材料上移除油墨颗粒; 安布 从水性悬浮液中除去脱落的墨颗粒。

公开(公告)号：US20050145349A1

公开(公告)日：2005-07-07

申请号：US10751646

申请日：2004-01-06

申请人： Hassan El-Shall ,  Brij Moudgil

发明人： Hassan El-Shall ,  Brij Moudgil

IPC分类号： D21B1/08 ,  D21C1/06 ,  D21C1/08 ,  D21C5/02

CPC分类号： D21C5/025 ,  Y02W30/648

摘要： A method of de-inking cellulosic fibrous materials comprising: 1) admixing an alkaline reagent with hydrogen peroxide and an aqueous suspension of inked cellulosic fibrous material in amounts whereby the alkaline reagent and hydrogen peroxide react at the ink particle/cellulosic fiber interfaces to dislodge the ink particles from the cellulosic materials; and, 2) removing the dislodged ink particles from the aqueous suspension, wherein the alkaline reagent comprises sodium carbonate or a mixture of sodium carbonate and a) ammonium hydroxide, b) sodium bicarbonate or c) mixtures of sodium carbonate and ammonium hydroxide.

摘要翻译： 一种脱墨纤维素纤维材料的方法，包括：1）将碱性试剂与过氧化氢和墨水纤维素纤维材料的水性悬浮液混合，其量使碱性试剂和过氧化氢在油墨颗粒/纤维素纤维界面反应以除去 来自纤维素材料的油墨颗粒; 和2）从水性悬浮液中除去脱落的油墨颗粒，其中碱性试剂包括碳酸钠或碳酸钠和a）氢氧化铵的混合物，b）碳酸氢钠或c）碳酸钠和氢氧化铵的混合物。

公开(公告)号：US06632327B1

公开(公告)日：2003-10-14

申请号：US09424721

申请日：1999-11-29

申请人： Hassan El Shall

发明人： Hassan El Shall

IPC分类号： D21C1110

CPC分类号： D21C11/0085 ,  D21C11/0007 ,  Y10S210/928

摘要： A water soluble, surface active, polymeric agent is mixed with digestion liquor, preferably with an additional surface active defoamer coagulant agent prior to or during acidification of the alkaline digestive liquor. This results in an easily separable, non-gelatinous, non-gummy, coagulated lignin as a solids, particulate fraction that tends to float on a clarified liquid fraction containing recoverable salts. The solids fraction and the liquid frictions are easily separated, one from the other, by a gravity separation step.

摘要翻译： 在碱性消化液酸化之前或期间，将水溶性表面活性聚合物与消化液混合，优选与另外的表面活性消泡剂凝结剂混合。 这导致易于分离，非胶凝，非胶状，凝固的木质素作为固体，倾向于漂浮在含有可回收盐的澄清液体馏分上的颗粒级分。 通过重力分离步骤，固体分数和液体摩擦容易地彼此分离