公开(公告)号：US5023000A

公开(公告)日：1991-06-11

申请号：US521627

申请日：1990-05-10

申请人： James F. Kneller ,  Barbara E. Fair ,  Gianfranco F. Mazzani ,  I. Sergio Di Simone

发明人： James F. Kneller ,  Barbara E. Fair ,  Gianfranco F. Mazzani ,  I. Sergio Di Simone

IPC分类号： C02F5/14 ,  C07F9/30

CPC分类号： C02F5/145 ,  C02F5/14 ,  C07F9/301

摘要： Calcium carbonate scale is controlled by treating calcium carbonate containing waters with a predominantly phosphinate containing composition where has as its major ingredient more than 32 mole percent of a phosphinicosuccinic acid oligomer having the probable structural formula . ##STR1## M is H, Na, K, NH.sub.4, or mixtures thereof; and m and n are either 0 or a small whole number with proviso that either m or n is a small whole number and the sum of m plus n is greater than 2.

摘要翻译： 通过用主要含有次膦酸盐的组合物处理含碳酸钙的水，以其主要成分超过32摩尔％的具有可能结构式的次膦酸琥珀酸低聚物来控制碳酸钙垢。 M是H，Na，K，NH 4或其混合物; m和n为0或小整数，条件是m或n为小整数，m + n之和大于2。