The proposed invention relates to methods of
precious metal recovery and may be applied to the
recovery of precious metals from various types of mineral raw source materials containing chlorides of alkali and earth metals, e.g. collective concentrate produced from clay-salt residue of
potassium production, or marker clays, etc. This method includes chlorinating
roasting of the collective concentrate produced during enrichment of the material with residual chlorides content of 7-13%, or natural concentrate with up to 15% chlorides content. Thereafter, the
cinder is leached by an aqua-regia solution, the precious metals are recovered from the pulp via of
sorption, chlorinating
roasting is held at 600-700° C., the precious metals are leached from the
cinder using diluted solution of aqua-regia, and then via
sorption. The process is cost-efficient due to the use of chlorinating agent, reduction of the process steps number, decreasing of the
roasting temperature, and the leaching by diluted acid.