PROCEDURE FOR PRODUCTION OF HIGH POROUS SILVER SPONGE OUT OF SILVER CONTAINING MATERIALS (VERSIONS) Russian patent published in 2011 - IPC C22B11/00 C22B3/04 C22B3/46 

FIELD: metallurgy.

SUBSTANCE: here are disclosed 2 versions of fabrication of high porous silver sponge where as source of silver there are used silver salts or silver alloys successively converted into salts. The versions of the procedure consist in preparing concentrated chloride solution whereat silver salt is dissolved in accordance with its solubility at temperature of solution boiling. Salt of polyvalent metal of lead chloride at amount equal to amount of dissolved silver is introduced into prepared solution. Further, silver-lead sponge is settled with zinc. Contaminating substances and lead are removed from settled sponge which is successively washed and dried.

EFFECT: accelerated production of silver sponge due to reduced time for its sedimentation; qualitative stable high porosity of produced silver sponge.

2 cl, 1 dwg, 1 tbl, 3 ex