THE RECOVERY METHOD OF RHENIUM FROM THE WEAK ACID AT COPPER SMELTER

摘要

The present invention relates to a method for collecting rhenium from weak acid in a copper refining process. The method comprises: a filtering step of filtering weak acid collected in a copper refining process to remove impurities from the weak acid; an extracting and eluting step of eluting rhenium by putting an ammonia solution after the rhenium is extracted from the filtered material generated through the filtering step using ion exchange resin; an evaporating and enriching step of evaporating and enriching a volatile solvent by heating the product which passed the extracting and eluting step; an eluting solution collecting step of collecting the solution evaporated through the evaporating and enriching step to be reused as an eluting solution; a refining step of refining the product generated through evaporating and enriching step to remove the impurities; and a drying step of drying the product which passed the refining step to obtain the final powdery product. [Reference numerals] (AA) Start; (BB) End; (S101) Filtering step; (S103) Extracting and eluting step; (S105) Evaporating and enriching step; (S105') Eluting solution collecting step; (S107) Refining step; (S109) Drying step