申请人:Sekiguchi Junnosuke
公开号:US20120174827A1
公开(公告)日:2012-07-12
An object of the present invention is to provide a high-purity aqueous copper sulfonate solution and a simplified method of producing this solution.
The aqueous copper sulfonate solution of the present invention is characterized in that the copper concentration therein is at least 90 g/L, the content of metal impurities is less than 10 mg/L as metal for each metal impurity, the content of chlorine is less than 10 mg/L, and the sulfonic acid is a sulfonic acid represented by the following general formula
R—(SO
3
H)
n
(in the formula, R represents a lower alkyl group, lower alkylidene group, lower alkylene group, or hydroxyalkyl group and n represents 1 or 2).
本发明的目的是提供一种高纯度的水溶性苯磺酸铜溶液及其简化的制备方法。本发明的水溶性苯磺酸铜溶液的特点在于其中铜的浓度至少为90 g/L,金属杂质的含量小于每种金属的10 mg/L,氯的含量小于10 mg/L,且磺酸是由下列通式表示的磺酸R—(SO3H)n(在式中,R代表低碳基、低碳基烯基、低碳基烷基或羟基烷基,n代表1或2)。