公开(公告)号：US06355214B1

公开(公告)日：2002-03-12

申请号：US09333891

申请日：1999-06-16

申请人： Mitzi K. Fader ,  Duy T. Nguyen ,  Xiang Huai Wang ,  Fushan Zhang ,  Tien-Feng Ling

发明人： Mitzi K. Fader ,  Duy T. Nguyen ,  Xiang Huai Wang ,  Fushan Zhang ,  Tien-Feng Ling

IPC分类号： C23F1106

CPC分类号： C02F5/105 ,  C02F5/00 ,  C02F2209/06

摘要： Method for inhibiting scale deposits in an aqueous system. The method may include adding anti-scalant to the aqueous system such that an amount of anti-scalant in the aqueous system is up to about 500 ppm, wherein the anti-scalant comprises at least one of polyvalent metal silicate and polyvalent metal carbonate, and wherein the aqueous system has a pH of at least about 9. The method may include adding anti-scalant to the aqueous system such that an amount of anti-scalant in the aqueous system is up to about 500 ppm, wherein the anti-scalant comprises at least one of polyvalent metal silicate and polyvalent metal carbonate, in the presence of up to about 0.4 ppm of cationic polymer. The method may include adding anti-scalant to the aqueous system at at least one of before a pulping digester and at a pulping digester, such that an amount of anti-scalant in the aqueous system is up to about 500 ppm, wherein the anti-scalant comprises at least one of polyvalent metal silicate and polyvalent metal carbonate. The method may involve adding a nucleation promoter/initiator to the aqueous system to inhibit formation of scale deposits, such that an amount of the nucleation promoter/initiator in the aqueous system is up to about 500 ppm. The method may involve adding first cations to the aqueous system and removing second cations which are distinct from the first cations from the aqueous system, to inhibit the second cations from forming scale deposits, wherein the aqueous system is at a temperature of about 70° C. to 500° C. Inorganic compositions therefor.

摘要翻译： 用于抑制水性体系中结垢的方法。 该方法可以包括向水性体系中加入抗垢剂，使得水性体系中的抗垢剂的量高达约500ppm，其中抗腐剂包含多价金属硅酸盐和多价金属碳酸盐中的至少一种，以及 其中所述水性体系具有至少约9的pH。所述方法可以包括向所述水性体系中加入抗鳞屑剂，使得所述含水体系中的抗垢剂的量高达约500ppm，其中所述防垢剂包含 在多至约0.4ppm的阳离子聚合物的存在下，多价金属硅酸盐和多价金属碳酸盐中的至少一种。 该方法可以包括在制浆蒸煮器和制浆蒸煮器之前的至少一个处向水性体系中加入抗鳞屑剂，使得水系统中的抗垢剂的量高达约500ppm， 稀土元素包括多价金属硅酸盐和多价金属碳酸盐中的至少一种。 该方法可以包括向含水体系中加入成核促进剂/引发剂以抑制水垢沉积物的形成，使得水系统中成核促进剂/引发剂的量高达约500ppm。 该方法可以包括将第一阳离子加入到水性体系中并除去与水系统不同于第一阳离子的第二阳离子，以抑制第二阳离子形成结垢，其中水系统处于约70℃的温度 至500℃。其无机组合物。

公开(公告)号：US06365101B1

公开(公告)日：2002-04-02

申请号：US09523663

申请日：2000-03-10

申请人： Duy T. Nguyen ,  Mitzi K. Fader ,  Xiang Huai Wang ,  Fushan Zhang ,  Tien-Feng Ling

发明人： Duy T. Nguyen ,  Mitzi K. Fader ,  Xiang Huai Wang ,  Fushan Zhang ,  Tien-Feng Ling

IPC分类号： C23F1106

CPC分类号： C02F5/105 ,  C02F5/00 ,  C02F2209/06

摘要： Method for inhibiting scale deposits in an aqueous system. The method may include at least one of adding and forming anti-scalant in the aqueous system such that an amount of anti-scalant in the aqueous system is up to about 1000 ppm, wherein the anti-scalant comprises at least one of polyvalent metal silicate and polyvalent metal carbonate, wherein the aqueous system has a pH of at least about 9, and wherein a mean particle size of the anti-scalant is less than about 3 microns. The method may also include at least one of adding and forming anti-scalant in the aqueous system such that an amount of anti-scalant in the aqueous system is up to about 1000 ppm, wherein the anti-scalant comprises at least one of polyvalent metal silicate and polyvalent metal carbonate, and wherein the aqueous system has a pH of at least about 9; and adding dispersant to the aqueous system. The method may involve forming anti-scalant in the aqueous system such that an amount of anti-scalant in the aqueous system is up to about 1000 ppm, wherein the anti-scalant comprises at least one of polyvalent metal silicate and polyvalent metal carbonate, and wherein a mean particle size of the anti-scalant is less than about 3 microns. The method may further include at least one of adding and forming anti-scalant in the aqueous system, wherein the anti-scalant comprises at least one of polyvalent metal silicate and polyvalent metal carbonate; and adding at least one protein to the aqueous system. Compositions therefor.

摘要翻译： 用于抑制水性体系中结垢的方法。 该方法可以包括在水性体系中添加和形成抗鳞屑剂中的至少一种，使得水性体系中的抗垢剂的量高达约1000ppm，其中抗鳞屑剂包含至少一种多价金属硅酸盐 和多价金属碳酸盐，其中所述水性体系具有至少约9的pH，并且其中所述防垢剂的平均粒度小于约3微米。 所述方法还可以包括在水性体系中添加和形成抗鳞屑剂的至少一种，使得水性体系中的抗垢剂的量高达约1000ppm，其中所述防垢剂包含多价金属中的至少一种 硅酸盐和多价金属碳酸盐，并且其中所述水性体系具有至少约9的pH; 并向水系中加入分散剂。 该方法可以包括在水性体系中形成抗鳞屑剂，使得水系统中的抗垢剂的量高达约1000ppm，其中抗鳞屑剂包含多价金属硅酸盐和多价金属碳酸盐中的至少一种，以及 其中所述抗鳞屑剂的平均粒度小于约3微米。 所述方法可以进一步包括在水性体系中添加和形成抗垢剂中的至少一种，其中所述抗腐剂包含多价金属硅酸盐和多价金属碳酸盐中的至少一种; 并向水系统中加入至少一种蛋白质。 为此组成。

公开(公告)号：US5229033A

公开(公告)日：1993-07-20

申请号：US651160

申请日：1991-02-06

申请人： Duy T. Nguyen ,  Mitzi K. Fader ,  William A. Hendriks

发明人： Duy T. Nguyen ,  Mitzi K. Fader ,  William A. Hendriks

IPC分类号： B01D19/04

CPC分类号： B01D19/0404

摘要： A composition to control foam in aqueous systems such as those found in papermaking operations comprising a polybutene and at least one surfactant having a melting or pour point below 20.degree. C. The surfactants include polyethylene glycol esters, sorbitan ester, polyoxyalkylene ester, oleic diethanolamide and block copolymers of ethylene oxide and propylene oxide. Due to their low melting point, these surfactants may be blended with the polybutene at room temperature resulting in a foam control composition that is translucent, resistant to deposition and highly effective.