PATENT AND INFORMATION ANALYSIS OF THE DEVELOPMENT LEVEL OF ENGINEERING SOLUTIONS ON GOLD HEAP LEACHING FROM MAN-MADE RAW MATERIALS IN THE PERMAFROST ZONE
Using patent and information analysis of engineering solutions, the development level of physico-chemical geotechnology of gold heap leaching in the leading gold mining countries is analyzed. Based on the use of advanced information, a comparative quantitative assessment is given to engineering solutions for the objects of invention under two leaching modes - seasonal and year-round.