公开(公告)号：US4923634A

公开(公告)日：1990-05-08

申请号：US155393

申请日：1988-02-12

申请人： John E. Hoots ,  Donald A. Johnson ,  Dodd W. Fong ,  James F. Kneller

发明人： John E. Hoots ,  Donald A. Johnson ,  Dodd W. Fong ,  James F. Kneller

IPC分类号： C23F11/08

CPC分类号： C23F11/08

摘要： A method for inhibiting corrosion in industrial cooling waters which contain hardness and a pH of at least 6.5, by dosing the water with a composition which comprises a water-soluble inorganic phosphate capable of inhibiting corrosion in an aqueous alkaline environment and a hydrocarbon polymer containing an N-substituted acrylamide polymers with an amide structure as follows: ##STR1## where R.sub.2 is hydrogen or methyl, where 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; or containing derivatized maleic anhydride homo-, co- and terpolymers having N-substituted maleamic acid units, N-substituted maleimide units and maleic acid (and salts) units having a structure as follows: ##STR2## where R.sub.1, R.sub.2 and R.sub.3 are each independently chosen from the group consisting of hydrogen, hydroxyl, carboxyalkyl, carboxyamide, phenyl, substituted phenyl, linear or branched alkyl of from one to ten carbon atoms,and substituted alkyl of from one to ten carbon atoms, where the substituent is phosphonic acid; phosphinic acid; phosphate ester; sulfonic acid; sulfate ester, carboxyamide, (poly)carboxy and (poly)hydroxy, alkoxy and carboxylate ester groups; and combinations thereof.

摘要翻译： 一种通过用含有能够在碱性水溶液中抑制腐蚀的水溶性无机磷酸盐的组合物给予水，并且含有至少为6.5的烃聚合物的含有硬度和pH至少为6.5的工业冷却水中的腐蚀的方法 具有酰胺结构的N-取代丙烯酰胺聚合物如下：其中R 2是氢或甲基，其中R 1是氢或烷基，R是亚烷基或亚苯基，X是磺酸根，（多）羟基，（聚） 羧基或羰基，及其组合; 或含有具有N-取代的马来酰胺酸单元，N-取代的马来酰亚胺单元和具有如下结构的马来酸（和盐）单元的衍生化马来酸酐均聚物，共聚物和三元共聚物：其中R 1，R 2和R 3各自为 独立地选自氢，羟基，羧基烷基，羧基酰胺，苯基，取代的苯基，1至10个碳原子的直链或支链烷基和1至10个碳原子的取代烷基，其中取代基是膦酸; 次膦酸 磷酸酯; 磺酸 硫酸酯，羧酰胺，（多）羧基和（多）羟基，烷氧基和羧酸酯基团; 及其组合。

公开(公告)号：US4292293A

公开(公告)日：1981-09-29

申请号：US172608

申请日：1980-07-28

申请人： Donald A. Johnson ,  Baker N. Nimry

发明人： Donald A. Johnson ,  Baker N. Nimry

IPC分类号： C01B17/06 ,  C02F1/72 ,  C02F1/76

CPC分类号： C02F1/725 ,  C01B17/06 ,  C02F1/722 ,  Y10S423/13

摘要： An improved method for the oxidation of water-soluble inorganic sulfide ions in aqueous systems is disclosed. The method uses a soluble metallic ion catalyst in the presence of an oxidizing agent. The improvement comprises adding to the system a water-soluble anionically-charged polymer having a molecular weight of from 1,000-100,000. Additionally, certain organic phosphonate materials can be used in combination with the polymer.By the use of the polymer or polymer-phosphonate treatment the efficiency of the metallic ion catalyst and the sulfide oxidation step is improved.

摘要翻译： 公开了一种在水性体系中氧化水溶性无机硫化物离子的改进方法。 该方法在氧化剂存在下使用可溶性金属离子催化剂。 该改进包括向系统中加入分子量为1,000-100,000的水溶性阴离子带电聚合物。 另外，某些有机膦酸盐物质可与聚合物组合使用。 通过使用聚合物或聚合物 - 膦酸盐处理，提高了金属离子催化剂的效率和硫化物氧化步骤。