公开(公告)号：US5256303A

公开(公告)日：1993-10-26

申请号：US916905

申请日：1992-07-20

申请人： E. H. Kelle Zeiher ,  Cynthia A. Soderquist ,  Claudia C. Pierce ,  Kenneth P. Fivizzani

发明人： E. H. Kelle Zeiher ,  Cynthia A. Soderquist ,  Claudia C. Pierce ,  Kenneth P. Fivizzani

IPC分类号： B01D61/04 ,  B01D65/08 ,  C02F5/12 ,  C02F5/14

CPC分类号： C02F5/12 ,  B01D61/025 ,  B01D61/04 ,  B01D65/08 ,  C02F5/14 ,  B01D2311/04 ,  B01D2321/162 ,  B01D2321/168

摘要： A method for inhibiting calcium sulfate scale formation and deposition and/or dispersing iron from a feedstream passing through a reverse osmosis system which comprises the steps of: controlling the pH of the feedstream within the range between about 6.0 to about 7.0; controlling the temperature of the feedstream within the range between about 50.degree. to about 80.degree. F.; and adding a scale inhibitor and/or iron disperant to the feedstream in an amount between about 0.002 ppm per ppm hardness (as CaCO.sub.3) of the feedstream to about 0.005 ppm per ppm hardness (as CaCO.sub.3) of the feedstream, the scale inhibitor comprising a water-soluble organic phosphonate and an N-substituted acrylamide polymer containing an amide structure as follows: ##STR1## where R.sub.2 is hydrogen or methyl, R.sub.1 is a hydrogen or an alkyl, and R is alkylene or phenylene and X is sulfonate, (poly) hydroxyl, (poly) carboxyl or carbonyl, and combinations thereof, with the weight ratio of polymer to phosphonate being within the range of about 0.2:1 to about 2:1; provided that when X is sulfonated then R--X-- is selected from the group consisting of sulfomethyl and 2-sulfoethyl.

摘要翻译： 一种通过反渗透系统从进料流中抑制硫酸钙垢形成和沉积和/或分散铁的方法，其包括以下步骤：将原料流的pH控制在约6.0至约7.0之间的范围内; 将进料流的温度控制在约50至约80°F之间的范围内; 并且以进料流的每ppm硬度（作为CaCO 3）的约0.002ppm至进料流的每ppm硬度（作为CaCO 3）至约0.005ppm的量向进料流中加入防垢剂和/或铁挥发物，阻垢剂包含 水溶性有机膦酸酯和含有酰胺结构的N-取代丙烯酰胺聚合物如下：其中R 2是氢或甲基，R 1是氢或烷基，R是亚烷基或亚苯基，X是磺酸酯（聚 ）羟基，（多）羧基或羰基及其组合，聚合物与膦酸酯的重量比在约0.2:1至约2:1的范围内; 条件是当X被磺化时，则R-X-选自磺基甲基和2-磺乙基。

公开(公告)号：US4963267A

公开(公告)日：1990-10-16

申请号：US501438

申请日：1990-03-26

申请人： John E. Hoots ,  Kenneth P. Fivizzani ,  Barbara E. Fair

发明人： John E. Hoots ,  Kenneth P. Fivizzani ,  Barbara E. Fair

IPC分类号： C02F5/12 ,  C23F11/08

CPC分类号： C23F11/08 ,  C02F5/12

摘要： The precipitate species of manganese in the presence of an oxidative condition in the waters of an aqueous system can be diminished by treating such waters with certain amide-containing polymer.

摘要翻译： 通过用某些含酰胺的聚合物处理这种水，在含水体系的水中存在氧化条件下的锰的沉淀物质可以减少。

公开(公告)号：US5320779A

公开(公告)日：1994-06-14

申请号：US999795

申请日：1991-06-06

申请人： Kenneth P. Fivizzani

发明人： Kenneth P. Fivizzani

IPC分类号： C23F11/08 ,  C23F11/167

CPC分类号： C23F11/08

摘要： A corrosion inhibitor treatment composition for cooling water systems is disclosed in which no chromate is used and no free orthophosphate is present comprising a combination of a localized corrosion inhibitor in the form of a salt of molybdenum, vanadium, or tungsten, a general corrosion and scale inhibitor comprising zinc or nickel, a pair of organic phosphonates, and a stabilizing agent.

摘要翻译： 公开了一种用于冷却水系统的腐蚀抑制剂处理组合物，其中不使用铬酸盐，并且不存在游离的正磷酸盐，其包含以钼，钒或钨的盐形式的局部腐蚀抑制剂的组合，一般的腐蚀和比例 包含锌或镍的抑制剂，一对有机膦酸盐和稳定剂。

公开(公告)号：US5192447A

公开(公告)日：1993-03-09

申请号：US727413

申请日：1991-07-09

申请人： Kenneth P. Fivizzani

发明人： Kenneth P. Fivizzani

IPC分类号： C02F5/08 ,  C23F11/08

CPC分类号： C02F5/083 ,  C23F11/08

摘要： A corrosion inhibitor treatment composition for cooling water systems at elevated temperatures in which no chromate is used is disclosed, comprising a combination of a localized corrosion inhibitor in the form of a salt of molybdenum, vanadium, or tungsten, a reduced level of a general corrosion and scale inhibitor comprising zinc, nickel or a combination thereof, orthophosphate, an organic phosphonate, and a stabilizing agent.

摘要翻译： 公开了一种用于在没有使用铬酸盐的高温下冷却水系统的腐蚀抑制剂处理组合物，其包括以钼，钒或钨的盐形式的局部腐蚀抑制剂的组合，降低了一般腐蚀水平 和包含锌，镍或其组合的阻垢剂，正磷酸盐，有机膦酸盐和稳定剂。

公开(公告)号：US4869828A

公开(公告)日：1989-09-26

申请号：US160672

申请日：1988-02-26

申请人： John E. Hoots ,  Kenneth P. Fivizzani ,  Roy I. Kaplan

发明人： John E. Hoots ,  Kenneth P. Fivizzani ,  Roy I. Kaplan

IPC分类号： C02F5/12

CPC分类号： C02F5/12

摘要： The present invention is directed to a process for stabilizing iron hydr(oxide) in aqueous systems which comprises adding to an aqueous system in which the water contains or will contain soluble iron a polymer which contains pendant N-substituted amide functionality, including amide substituted with sulfoalkyl wherein the alkyl is of 1 to 3 carbon atoms, sulfophenyl, or such groups substituted further with (poly)hydroxy.