Electrolytic process for producing lead sulfonate and tin sulfon

Details Electrolytic process for producing lead sulfonate and tin sulfon Electrolytic process for producing lead sulfonate and tin sulfon

1995-05-16

1997-04-08

Gorgos, Kathryn

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Preparing organic compound

205457, 205458, C25B 100

Patent

active

056184042

ABSTRACT:
An electrolytic process for producing lead and tin sulfonates which comprises applying a DC voltage to an anode and a plurality of cathodes 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 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 .alpha. particle counts of less than 0.1 CPH/cm.sup.2.

REFERENCES:
patent: 4985127 (1991-01-01), Vaughan

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