After bauxite beneficiation process and generally do not need refinery feedstock directly supplied plant ingredients, into the alumina production process.

The copper , lead and zinc ore in Shandong are subject to processing by the concentrator and selected copper, lead and zinc concentrate products that meet the needs of non-ferrous metal smelting. The total design scale of non-ferrous metal mines (excluding gold mines) in Shandong Province is 1710 tons of raw ore. The copper ore processing plant of the Wangjiazhuang mining area in Fushan Copper Mine has a daily processing capacity of 500 tons. The copper and molybdenum plant of Kongxintou Mining Area The daily processing of raw ore is 250 tons, the Xiangxi lead-zinc mine lead and zinc plant is 460 tons of raw ore, and the copper and sulfur plant is 500 tons of raw ore. In addition, in the processing of iron ore in Jinling Laiwu Iron ore 600,000 tons and 400,000 tons of ore dressing plant process, copper concentrate are recovered, cobalt, copper and cobalt concentrate pyrite concentrate.

The process of the ore dressing plant in the Yashan mining area of ​​Fushan Copper Mine is that the three-stage and one-closed process is used for the crushing. The grinding process adopts a closed-circuit process, and the flotation process is a rough selection, secondary selection, secondary sweeping, and a neutral return process. The selected product is copper concentrate. The fracture part of the ore dressing plant in Kongxintou Mining Area adopts a three-stage and one-closed process. The grinding part adopts a one-step closed-circuit process, and the medium-mineral sequence returns to the process. The flotation process is a rough one. The flotation product is copper concentrate, and the flotation tailings are magnetically selected to obtain iron concentrate. The plant was changed to molybdenum in 1972, and the flotation process was transformed into a coarse and two fine three-sweep. The copper-molybdenum mixed concentrate was selected and re-grinded into a coarse seven-slurry two-sweep separation flotation process. Molybdenum concentrate, selected tailings are copper concentrates. The process of the copper selection plant in the Wangjiazhuang mining area is a three-stage, one-closed process. Grinding uses a two-stage, one-closed process. The flotation process is a four-time selection of two rough selections, and the middle mine returns in sequence. The flotation concentrate product is a copper concentrate. In order to improve the selected grade and eliminate the influence of slime, the ore is added to the manual crushing and washing measures after coarse crushing. In 1981, due to the end of the mining of the first section of the Wangjiazhuang mining area, no copper ore was used for ore dressing, the copper selection plant was transformed into a fluorite ore mine, and the grinding part was transformed into a closed-circuit process, and the flotation process was transformed into one Roughly selected six times to select one sweep. The flotation concentrate is dehydrated by filtration to obtain a fluorite concentrate.

In the lead-zinc ore dressing plant of Xiangxi Lead-Zinc Mine, the crushing part adopts a two-stage closed-circuit washing and crushing process, that is, a cylinder washing machine is used to de-sludge between the two stages of crushing. The grinding system is a closed circuit process. The flotation process is a partial mixed flotation in which copper, lead and zinc and sulfur are separately mixed and floated and then separated. The copper-lead mixed flotation process is a three-time selection of three rough selections to obtain a copper-lead mixed concentrate. The copper-lead separation flotation process is a primary selection and secondary sweeping, and the flotation products are copper concentrate and lead concentrate. In the copper-lead separation flotation operation, sodium thiosulfate and ferrous sulfate were used instead of cyanide to achieve cyanide-free beneficiation, eliminating pollution and improving the beneficiation index. The copper-lead mixed flotation tailings enters the zinc-sulfur mixed flotation process, and the zinc-sulfur mixed flotation process is a rough selection and three selective sweeps. The zinc-sulfur mixed concentrate is obtained and then separated into a flotation process. The zinc-sulfur separation flotation process is a three-time selection of one rough selection, and the obtained product is zinc concentrate and sulfur concentrate. The copper-sulfur concentrating plant with a capacity of 500 tons of raw ore in the mine was approved for construction in January 1971. It was basically completed at the end of 1980, and was sealed up due to the adjustment of the national economy and the lack of simultaneous development of mining.

The two iron ore dressing plants of Jinling Iron Mine and Laiwu Iron Mine are available for comprehensive utilization due to the accompanying copper and cobalt elements in the ore raw ore. In the beneficiation process, a flotation process is set up to comprehensively recover copper and cobalt. The products are copper concentrate, cobalt-sulfur concentrate and copper-cobalt mixed concentrate, which are the main producing areas of Shandong copper and cobalt concentrate.

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