Method for floatation of ilmenite in Hongge mining area in Panxi region, Sichuan province

Abstract

The invention relates to a method for floatation of ilmenite in the Hongge mining area in the Panxi region, Sichuan province and belongs to the technical field of mineral processing. The method for floatation of ilmenite is capable of improving the quality and yield of ilmenite concentrate. The method comprises the steps of flotation pulp preparation, wherein magnetic separation is conducted on iron tailings to obtain magnetic concentrate according to which the grade of TiO2 is 18-25% and the grade of TFe is 15-23%, and then the preparing flotation pulp with a concentration of 40-55% is obtained through concentration; sulfur floatation, wherein the PH value of the flotation pulp is adjusted to be 3.5-4.5 by adding acid, and xanthate and foaming agents are also added for sulfur floatation; titanium floatation, wherein sulfuric acid, titanium floatation collecting agents, diesel and sodium fluosilicate are added for flotation through one-roughing, one-scavenging and four-refining processes to obtain ilmenite concentrate. When ilmenite floatation is conducted in a bi-acid environment, restraint of gangue minerals is facilitated, acid pickling of minerals is achieved, regime of agents is simplified, the number of influence factors of floatation is reduced, stable production is promoted, the quality and yield of ilmenite concentrate are improved, production cost is reduced, and labor intensity is relieved.

Description

technical field [0001] The invention relates to a flotation method for ilmenite in Hongge Mining Area, Panxi, Sichuan, and belongs to the technical field of ore dressing. Background technique [0002] The development and utilization of ilmenite in the Panxi area began in the 1970s. At first, the "gravity separation-electric separation" process was used for recovery. The recovery rate of this process was low, and the recovery rate for the magnetotail could only reach about 18%. After the joint research of many scientific research institutes and production units, the "strong magnetic-flotation" process was gradually adopted to recover ilmenite, and the system recovery rate increased to about 35%. State-of-the-art technology for iron ore separation. [0003] The Hongge mining area is one of the four major mining areas in the Panxi area, and its ore properties are quite different from other mining areas. The ore deposits occur in basic-ultrabasic rock masses, and belong to late...

AI Technical Summary

Problems solved by technology

The magnetism and buoyancy of some gangue minerals are similar to those of ilmenite, resulting in low quality conc