08-03-2018 дата публикации
Номер: KR1020180024406A
Принадлежит:
The present invention relates to a method for recovering silver from a byproduct generated in an electrode process, comprising: a step of leaching silver by adding nitric acid to a byproduct of an electrode process; a step of filtering a leached solution containing the silver to remove a solid residue; and a step of adding hydrochloric acid to the leached solution from which the solid residue has been removed to precipitate and separate silver chloride. According to the recovering method, low concentration of silver contained in the byproduct generated in the electrode process can be recovered from the byproduct generated in the electrode process, particularly a byproduct generated in a low temperature co-fired ceramic (LTCC) process, in a form of silver chloride having a purity of 99% or greater. In addition, the recovery method has economic efficiency because the recovery process is simple, generation of waste water is small, and a process cost can be reduced compared with a conventional ...
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