Test Research on Roasting-Magnetic Separation of High-phosphorus Oolitic Hematite-Limonite Ore;

Recovering magnetite from nickel metallurgical residue by selective flocculation-magnetic separation;

The study on the removal of iron from Dongyang potsah feldspar using dry magnetic separation method;

Experimental research on magnetic concentration and bleach of sericite in Lujiang, Anhui province;

Test Research on Direct Reduction-Magnetic Separation of Super-Fine Lean Hematite Ore;

Seperation of iron adopts magnetic and rough concentrate needs secondary grinding.

A lot of hematite and martite lean intergrowth is existed in magnetic concentration tails in concentration mill of Laiwu mine Co ,Ltd For recovering these iron mineral the medium intensity magnete separator is used,and the comprehensive metal recovery factor is increased by an average 1 17%,the grade of tails is decreased by 0 5%~1 0%,the profit is up to 0 77 million yuan/

Through improving graded closing grinding operation,regulating the system of floatation agent,reforming magnetic concentration operation,and making sure the graded overflow thickness and overflow fineness to meet the requirement of producing process the grade of concentrating iron ore is up to 65.

High Intensity Magnetic Separation (HIMS) of A Low-grade Manganese-Silver Ore;

Based on conditional tests,a closed-circuit test was made on the flowsheet consisting of primary grinding,high intensity magnetic separation(HIMS),secondary grinding,silver flotation and manganese flotation.

In order to better exploit and utilize the oolitic hematite ore resource in Zhangjiakou region,staged grinding-separation process consisting of high intensity magnetic separation(HIMS)and reverse floatation was adopted in the beneficiation test on the regionally representative oolitic hematite ore of Longyan Iron Mine,Xuan Steel.