-
公开(公告)号：US4810328A
公开(公告)日：1989-03-07
申请号：US117449
申请日：1987-11-04
IPC分类号： D21C9/02
CPC分类号： D21C9/02
摘要： An improved method of brown stock washing is disclosed. A nonionic surfactant in combination with a polyelectrolyte dispersant, and preferably a solvent, are utilized in the washing step in the pulping of virgin cellulosic fiber. The methods of the invention provide for the enhanced removal and recovery of cooking chemicals and organics from the pulp.
摘要翻译： 公开了一种改进的褐色洗涤方法。 在纯化纤维素纤维制浆的洗涤步骤中使用非离子表面活性剂与聚电解质分散剂，优选溶剂的组合。 本发明的方法提供从纸浆中增强烹饪化学品和有机物的去除和回收。
-
公开(公告)号：US4518459A
公开(公告)日：1985-05-21
申请号：US458432
申请日：1983-01-17
IPC分类号： D21C5/02
CPC分类号： D21C5/027 , Y02W30/648 , Y10S516/02
摘要： Washing methods of deinking secondary cellulose fiber (i.e., removing unwanted non-cellulose materials therefrom) are disclosed. These washing methods (as opposed to flotation methods) generally involve deinking the fiber with surface active agent (surfactant).The present invention utilizes a single foam-suppressing surface active agent consisting essentially ofR--(Ar)--(OC.sub.2 H.sub.4)m--(OC.sub.3 H.sub.6)n--Y;wherein R represents a monovalent higher aliphatic group containing from 6 to 24 carbon atoms,Ar represents an aromatic residue,--(OC.sub.2 H.sub.4)m--being a poly(ethylene oxide) chain,--(OC.sub.3 H.sub.6)n--being a poly(propylene oxide) chain;m is about 6 to about 15,n is about 12 to about 48,m:n is less than 1, andY is selected from the group consisting of hydroxyl and benzyl ether.The present washing method of deinking reduces or eliminates objectionable foam, potentially provides energy savings yet maintains or improves the quality of the deinked fiber.
摘要翻译： 公开了脱水次级纤维素纤维的洗涤方法（即从中除去不需要的非纤维素材料）。 这些洗涤方法（与浮选方法相反）通常包括使纤维与表面活性剂（表面活性剂）脱墨。 本发明采用基本上由R-（Ar） - （OC 2 H 4）m - （OC 3 H 6）n-Y组成的单一泡沫抑制表面活性剂; 其中R表示含有6至24个碳原子的单价高级脂族基团，Ar表示芳族残基， - （OC2H4）m-为聚（环氧乙烷）链， - （OC3H6）n-为聚（环氧丙烷） 链; m为约6至约15，n为约12至约48，m：n小于1，Y选自羟基和苄基醚。 目前的脱墨洗涤方法减少或消除令人反感的泡沫，潜在地提供能量节省，但维持或提高脱墨纤维的质量。
-
3.发明授权
公开(公告)号：US3960781A
公开(公告)日：1976-06-01
申请号：US576348
申请日：1975-05-12
申请人： Richard E. Freis , Larry M. Rue
发明人： Richard E. Freis , Larry M. Rue
CPC分类号： C08G18/4833 , C08G18/71 , C11D1/50 , D21H17/57 , Y10S516/07
摘要： Diaryl urethanes made by capping poly (oxyalkylene) diols with monoisocyanates are characterized by a desirable hydrophobe/hydrophile balance typically evidenced by low cloud points, the ability to form micelles in aqueous media, the ability to reduce stable foam, and the ability to be taken up and retained by paper fibers, the low foaming or de-foaming capability of these compounds is useful in machine dishwashing detergents and additives, which hydrophobe/hydrophile balance is typically obtained through a combination of oxyethylene and oxypropylene units or blocks in the oxyalkylene chain.
摘要翻译： 通过用单异氰酸酯封端聚（氧化烯）二醇制成的二芳基聚氨酯的特征在于所需的疏水物/亲水性平衡通常由低浊点证明，在水性介质中形成胶束的能力，降低稳定泡沫的能力和被采取的能力 这些化合物的低发泡或脱泡能力可用于机器餐具洗涤剂和添加剂，其通常通过氧化亚乙基和氧化丙烯单元或氧化烯链中的嵌段的组合获得疏水/亲水平衡。
-
公开(公告)号：US4643800A
公开(公告)日：1987-02-17
申请号：US742138
申请日：1985-06-07
IPC分类号： D21C5/02
CPC分类号： D21C5/027 , Y02W30/648
摘要： The method of substantially removing and dispersing resinous or waxy contaminants from contaminant-containing secondary fiber during repulping, is disclosed. The method includes combining the contaminant-containing secondary fiber in an aqueous repulping medium with a substituted oxyethylene glycol nonionic surfactant, and a water soluble, low molecular weight polyelectrolyte dispersant, at an elevated temperature.
摘要翻译： 公开了在重新制浆期间基本上从包含污染物的次级纤维中除去和分散树脂或蜡状污染物的方法。 该方法包括在高温下将水性再造浆介质中的含污染物的次级纤维与取代的氧乙二醇非离子表面活性剂和水溶性低分子量聚电解质分散剂结合。
-
-
-
搜索结果
4 条记录 (耗时 0.012 秒)
