公开(公告)号：US4775491A

公开(公告)日：1988-10-04

申请号：US81941

申请日：1987-08-05

申请人： Thomas D'Muhala ,  Robert Ward

发明人： Thomas D'Muhala ,  Robert Ward

IPC分类号： C02F5/12 ,  C07C243/34 ,  C02F5/10

CPC分类号： C02F5/12 ,  C07C243/34

摘要： Amino-polyacetic acids such as ethylenediaminetetraacetic acid, diethylene triaminepentaacetic acid and nitrilotriacetic acid are reacted with alkanols and then with hydrazine to form the hydrazides which may be converted to carboxyhydrazides, i.e. carbazic acids. The products perform well as chelants and sequestering agents.

公开(公告)号：US4726907A

公开(公告)日：1988-02-23

申请号：US810131

申请日：1985-12-17

申请人： Thomas D'Muhala ,  Robert Ward

发明人： Thomas D'Muhala ,  Robert Ward

IPC分类号： C02F5/12 ,  C07C243/34 ,  C23G1/14

CPC分类号： C02F5/12 ,  C07C243/34

摘要： Amino-polyacetic acids such as ethylenediaminetetraacetic acid, diethylene triaminepentaacetic acid and nitrilotriacetic acid are reacted with alkanols and then with hydrazine to form the hydrazides which may be converted to carboxyhydrazides, i.e. carbazic acids. The products perform well as chelants and sequestering agents.

摘要翻译： 将氨基 - 多乙酸如乙二胺四乙酸，二亚乙基三胺五乙酸和次氮基三乙酸与链烷醇反应，然后与肼反应形成可转化为羧酰肼（即卡巴酸）的酰肼。 产品表现良好，作为螯合剂和螯合剂。