公开(公告)号：US3959168A

公开(公告)日：1976-05-25

申请号：US468214

申请日：1974-05-08

申请人： Hans Gunther Germscheid ,  Hans-Rudiger Kranick ,  Hans-Jorgen Rehm ,  Rolf Scharf ,  Hans-Joachim Schlusser

发明人： Hans Gunther Germscheid ,  Hans-Rudiger Kranick ,  Hans-Jorgen Rehm ,  Rolf Scharf ,  Hans-Joachim Schlusser

IPC分类号： C09K3/00 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10 ,  C02F5/14 ,  C11D3/36 ,  C23F14/02 ,  C02B5/00

CPC分类号： C02F5/14 ,  C11D3/36

摘要： A synergistic sequestering agent composition comprising (a) 1-hydroxyethane-1,1-diphosphonic acid and its alkali metal and ammonium salts, or, preferably and (b) aminotrimethylenephosphonic acid and its alkali metal and ammonium salts, as well as (c) a phosphonopolycarboxylic acid selected from the group consisting of phosphonosuccinic acid, methylphosphonosuccinic acid and 2-phosphonobutane-1,2,4-tricarboxylic acid and their alkali metal and ammonium salts. The said mixture of sequestering agents is useful as a sequestering agent for aqueous solutions containing bivalent and trivalent cations especially in sub-stoichiometric amounts.

摘要翻译： 一种协同螯合剂组合物，其包含（a）1-羟基乙烷-1,1-二膦酸及其碱金属和铵盐，或优选和（b）氨基三亚甲基膦酸及其碱金属和铵盐，以及（c） 选自膦基琥珀酸，甲基磷酸丁二酸和2-膦酰基丁烷-1,2,4-三羧酸的膦酰基多羧酸及其碱金属和铵盐。 所述隔离剂的混合物可用作含有二价和三价阳离子的水溶液的螯合剂，特别是亚化学计量的量。