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公开(公告)号：EP0192273B1
公开(公告)日：1989-04-26
申请号：EP86102271.3
申请日：1986-02-21
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2.发明授权Electrolytic process for producing lead sulfonate and tin sulfonate for solder plating use 失效用于制备磺酸铅和锡磺酸盐在铅/锡电镀浴的电解过程
公开(公告)号：EP0770708B1
公开(公告)日：2000-01-19
申请号：EP95115894.8
申请日：1995-10-09
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公开(公告)号：EP0192273A1
公开(公告)日：1986-08-27
申请号：EP86102271.3
申请日：1986-02-21
发明人： Obata, Keigo , Dohi, Nobuyasu , Okuhama, Yoshiaki , Masaki, Seishi , Okada, Yukiyoshi , Yoshimoto, Masakazu
摘要： A tin, lead, or tin-lead alloy plating bath comprising, as essential ingredients, an alkali metal salt, and a soluble divalent tin compound or/and a lead compound, all of an aliphatic or aromatic sulfocarboxylic acid of the general formula
wherein R is a C 1-4 hydrocarbon radical, M 1 is a hydrogen atom or alkali metal atom, M 2 is an alkali metal atom, and X 1 and X 2 are each a hydrogen atom, OH, COON, or SO 3 N (where N represents a hydrogen atom or alkali metal atom).-
4.发明公开Electrolytic process for producing lead sulfonate and tin sulfonate for solder plating use 失效用于生产铅磺酸盐和具有锡磺酸盐使用用于焊接涂层电解过程
公开(公告)号：EP0770708A1
公开(公告)日：1997-05-02
申请号：EP95115894.8
申请日：1995-10-09
发明人： Okuhama, Yoshiaki , Masaki, Seishi , Takeuchi, Takao 2-810, Jamesyama Greencopo , Matsuda, Yoshihara , Yoshimoto, Masakazu
摘要： An electrolytic process for producing lead and tin sulfonates which comprises applying a DC voltage to an anode (2) and a plurality of cathodes (4) in an electrolytic cell and thereby dissolving lead or tin in an electrolytic solution. The electrolytic cell is partitioned by cation- and anion-exchange membranes (5,6) into anode and cathode chambers. The electrolytic solution is a solution of an organic sulfonic acid, and the anode is lead or tin. The process reduces contents of radioisotopes such as uranium and thorium to a level of less than 50 ppb, and therefore the coatings formed by solder plating using the lead and tin salts in accordance with the invention show radioactive α particle counts of less than 0.1 CPH/cm 2 .
摘要翻译： 的制造铅和锡磺酸盐，其包括施加直流电压到阳极处（2）和电解池的阴极（4）的多个部分并加以从而溶解铅或锡，在电解液中的电解过程。 的电解池是由阳离子和阴离子交换膜（5,6）转换成阳极室和阴极室隔开。 电解液是一种有机磺酸的溶液中，并将阳极是铅或锡。 该过程减少放射性同位素的内容：使用雅舞蹈的铅和锡的盐，与小于0.1 CPH的发明展放射性α粒子计数通过焊料镀敷形成，例如铀和钍到小于50ppb的水平，因此，涂层/ 厘米<2>。
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