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The technology has obtained national invention patents. From 2002 to 2004, the lead silver recovery rate was increased from 40.70% in 1998-2000 to 58.16%, while maintaining the lead recovery rate and grade. 17.46 percentage points; the main grade of lead increased from 58.97% before use to 61.85%, an increase of 2.88 percentage points; the lead recovery rate increased from 89.28% before use to 90.01%, an increase of 0.73 percentage points; 21 tons of lead in silver, more than 275 tons of lead, for the company to create more economic benefits: 29.1 million yuan, with good comprehensive economic benefits.
Zinc Yang Company has many advantages after using the potential-controlled flotation high-base lead-lead process. The lead-zinc recovery rate and grade are greatly improved, and the flotation power consumption is also greatly reduced. However, under high alkali conditions, some independent silver minerals It is strongly inhibited by lime, and the recovery rate of lead in silver is low. Company technical personnel beneficiation organization has conducted several research studies conducted various test processes, and ultimately invented a better beneficiation process for this purpose - after the first aniline-based sulfur and nitrogen-based potential regulatory step-election lead-silver float The selection process, which utilizes the difference of the best flotation potential of lead and silver, is sorted step by step, so that the silver mineral which is easy to float under high potential enters the product first by quick selection, and the low potential is favorable for the selection of lead, thereby It has solved the contradiction between lead and silver potential inconsistency, not only improved the recovery rate of lead silver, but also maintained and improved the lead selection index. It has made a major breakthrough in technology and obtained a good lead silver selection index. Successfully applied to production in the second half of 2001.