A method for securing the use of an aqueous medium under any substantial exclusion of metal ion interference is disclosed. A phosphonic acid compound containing: a selected phosphonate moiety and a moiety selected from a limited number of species; or hydrocarbon chains containing aminoalkylene phosphonic acid substituents; or alkylamino alkylene phosphonic acids containing an active moiety embodying N, O, and S. The technology can, by way of illustration, be used in numerous applications including secondary oil recovery, scale inhibition, industrial water treatment, paper pulp bleaching, dispersant treatment, sequestering application, brightness reversion avoidance and paper pulp treatment.
本发明公开了一种在基本排除
金属离子干扰的情况下确保
水介质使用的方法。
膦酸化合物含有:选定的
膦酸分子和从有限种类中选出的分子;或含有
氨基烷基
膦酸取代基的烃链;或含有包含 N、O 和 S 的活性分子的烷基
氨基烷基
膦酸。该技术可用于多种应用,包括二次采油、阻垢、工业
水处理、纸浆漂白、分散剂处理、固着应用、避免亮度回升和纸浆处理。