Method of extracting gold tail slag from arsenic containing aurin ore then extracting gold and silver

Abstract

The present invention relates to a method for extracting gold tailings from arsenical glod headings and further extracting gold and silver. Said extraction method includes the following steps: 1), enriching cyanogens dregs which are obtained after the arsenical gold headings are smelted by cyanidation process and whose gold and silver are recovered, pressing the cyanogens dregs into brick block; and 2), adding the cyanogens dregs enriched brick block into a copper smelting furnace and further recovering noble metals of gold and silver and copper.

Description

1. Technical field

[0001] The invention relates to a method for extracting gold and silver from refractory gold concentrates, and belongs to the technical field of gold and silver extraction methods for precious metal smelting. 2. Background technology

[0002] At present, in the field of gold smelting, after arsenic-containing refractory gold concentrate is pretreated to remove arsenic, and cyanide technology is used to smelt and recover gold and silver, the content of gold and silver in the cyanide tailings is still 2-4g / t, generally Gold and silver are no longer recovered, and after being dehydrated by a filter press, they are sold as iron-containing raw materials to make cement. Thereby the gold and silver in the cyanidation tailings cannot be recycled, causing certain waste. 3. Contents of the invention

[0003] The object of the present invention is to provide a method for extracting gold tailings from arsenic-containing gold concentrate and then extracting gold and...