公开(公告)号：US09416490B2

公开(公告)日：2016-08-16

申请号：US13758299

申请日：2013-02-04

Applicant: NALCO COMPANY

Inventor： Prasad Y. Duggirala ,  Xiaojin Harry Li

IPC: D21C3/22 ,  D21C3/28 ,  D21C3/02 ,  D21C3/06

CPC classification number: D21C3/22 ,  D21C3/02 ,  D21C3/06 ,  D21C3/222 ,  D21C3/28

Abstract: The invention provides a method of improving the digestion of wood chips into pulp. The method involves: adding a cross-linked glycerol-based polymer additive to a solution used in the digestion process. This additive is unexpectedly effective at facilitating digestion. The branched and ether structure of the additive allows it to withstand the harsh nature of a high stress environment. In addition, it is more soluble in the harsh condition than other surfactants. The structure, resistance, and particular balance between hydrophobic and hydrophilic regions, causes the additive to increases the interaction between the wood chips and the digestion chemicals. This in turn reduces the costs, the amount of additive needed, and the amount of reject wood chunks that result from the digestion process.

Abstract translation: 本发明提供了一种改善木屑进入纸浆的消化方法。 该方法包括：将交联的甘油基聚合物添加剂加入到消化过程中使用的溶液中。 这种添加剂在促进消化方面出人意料地有效。 添加剂的支链和醚结构允许其承受高应力环境的苛刻性质。 此外，它比其它表面活性剂在恶劣条件下更易溶。 疏水和亲水区域之间的结构，电阻和特殊的平衡导致添加剂增加了木片与消化化学物质之间的相互作用。 这又降低了成本，所需添加剂的量以及消化过程产生的拒收木块的量。

公开(公告)号：US10112843B2

公开(公告)日：2018-10-30

申请号：US14992382

申请日：2016-01-11

Applicant: Nalco Company

Inventor： Jing Wang ,  Xiaojin Harry Li ,  Heinrich Enoch Bode

IPC: C01F7/04 ,  C01F7/06 ,  C01F7/14 ,  C22B1/00 ,  C22B21/00 ,  C01F7/47 ,  C02F1/54

Abstract: In the mining process, linear, branched, hyperbranched or dendrimeric polyols or mixtures thereof are employed as process stabilization aids for aqueous solutions and, or suspensions of metal salts. A specific application area of the polyols is the stabilization of bauxite liquor in the Bayer process of producing alumina from bauxite.

公开(公告)号：US20160215449A9

公开(公告)日：2016-07-28

申请号：US13758299

申请日：2013-02-04

Applicant: NALCO COMPANY

Inventor： Prasad Y. Duggirala ,  Xiaojin Harry Li

IPC: D21C3/22

CPC classification number: D21C3/22 ,  D21C3/02 ,  D21C3/06 ,  D21C3/222 ,  D21C3/28

Abstract: The invention provides a method of improving the digestion of wood chips into pulp. The method involves: adding a cross-linked glycerol-based polymer additive to a solution used in the digestion process. This additive is unexpectedly effective at facilitating digestion. The branched and ether structure of the additive allows it to withstand the harsh nature of a high stress environment. In addition, it is more soluble in the harsh condition than other surfactants. The structure, resistance, and particular balance between hydrophobic and hydrophilic regions, causes the additive to increases the interaction between the wood chips and the digestion chemicals. This in turn reduces the costs, the amount of additive needed, and the amount of reject wood chunks that result from the digestion process.

公开(公告)号：US20160122196A1

公开(公告)日：2016-05-05

申请号：US14992382

申请日：2016-01-11

Applicant: Nalco Company

Inventor： Jing Wang ,  Xiaojin Harry Li ,  Heinrich Enoch Bode

IPC: C01F7/04 ,  C01F7/47

CPC classification number: C01F7/046 ,  C01F7/0646 ,  C01F7/144 ,  C01F7/47 ,  C02F1/54 ,  C22B1/00 ,  C22B21/0015 ,  Y02P10/234

Abstract: In the mining process, linear, branched, hyperbranched or dendrimeric polyols or mixtures thereof are employed as process stabilization aids for aqueous solutions and, or suspensions of metal salts. A specific application area of the polyols is the stabilization of bauxite liquor in the Bayer process of producing alumina from bauxite.

Abstract translation: 在采矿过程中，使用直链，支链，超支化或树枝状多元醇或其混合物作为水溶液和/或金属盐悬浮液的工艺稳定助剂。 多元醇的具体应用领域是在从铝土矿生产氧化铝的拜耳法中稳定铝土矿液体。