Xinhai Mining Machinery Design Institute has upgraded and transformed more than 80% of the mineral processing equipment to provide good mineral processing equipment worldwide.
For the gravity separation of barite, the process of Xinhai is crushing, screening and jigging. Then the high grade (over 80%) concentrate will be produced. Jig is the main equipment for the separation and purification of barite ore, which is energy saving, high efficiency, and environment protection. In the process of crushing, Xinhai uses jaw crusher and applies two-stage crushing process. In the process of screening, Xinhai uses simple and useful circular vibrating screen, which also have the features of large capacity, high efficiency, and convenient operation. It is very suitable for screening of barite ore. In the process of jigging, Xinhai applies two kinds of jigs to respectively separate the coarse and fine granularity of barite material.
Xinhai usually applies wet magnetic separation to beneficiate some iron-bearing mineral, like siderite, which applies to barite ore that is used in barium-based medicine requiring low iron barite.
As for the barite with fine particle size and gravity tailings, Xinhai applies process of floatation. According to the different adsorption manner, Xinhai uses some anionic collector, like fatty acid alkyl sulfate, alkyl sulfonate, or cationic collector, like amide collectors to do the floatation for barite ore.
For example, Xinhai had a project for the Separation, purification and processing of barite. In this barite mineral processing, Xinhai applied floatation for the tailings with BaS048%~15%, then gets concentrate grade with BaS0488%, a share of 4.35%, and recovery rate of 81%. It had gained excellent economic benefit.