Dipentene dimercaptan compositions and use thereof as a mining chemical collector

摘要

The present invention shows polythiol compositions containing dipentene dimercaptans and intermolecular sulfide compounds, as well as mining chemical collector compositions containing such polythiol compositions. Flotation processes for recovering metals, such as copper and molybdenum, from ores using the mining chemical collector compositions also are shown.

主权项

1. A flotation process for the recovery of a metal from an ore, the process comprising:
contacting the ore with a collector composition, wherein the collector composition comprises a polythiol composition comprising sulfur-containing compounds, the sulfur-containing compounds comprising: (i) dipentene dimercaptan compounds; and (ii) at least 4 wt. % of a heavy fraction comprising intermolecular sulfide compounds having at least one thiol sulfur group (—SH), at least one intermolecular sulfide group (—S—), and at least two substituted cyclohexyl groups.