30results about How to "The beneficiation process is simple" patented technology

The invention relates to a beneficiation method for separating molybdenum-tungsten oxide ore and molybdenum sulfide ore from molybdenum tungsten ore. The beneficiation method comprises the steps that magnetic separation is conducted on raw separation molybdenum sulfide ore at least twice, so that the raw separation molybdenum sulfide ore subjected to magnetic separation is divided into magnetic ore containing molybdenum-tungsten oxide and non-magnetic ore containing molybdenum sulfide; and a molybdenum-tungsten oxide flotation process is conducted on the magnetic ore, and a molybdenum sulfide flotation process is conducted on the non-magnetic ore, so that molybdenum-tungsten oxide concentrate and molybdenum sulfide concentrate are obtained. According to the beneficiation method for separating the molybdenum-tungsten oxide ore and the molybdenum sulfide ore from the molybdenum tungsten ore, the magnetic ore containing molybdenum-tungsten oxide and the non-magnetic ore containing molybdenum sulfide are separated out before ore grinding by means of the magnetic characteristic of iron-bearing ore in skarn in a magnetic separation and flotation combined way, so that the floatability of the ore is improved, the beneficiation feed grades of the molybdenum sulfide ore and the and molybdenum-tungsten oxide ore subjected to flotation are increased, and a subsequent flotation technological process is simplified; and in addition, grading index fluctuation caused by the change of the characteristics of the ore is reduced, and the mine production cost can be reduced easily.

The invention relates to a large-scale crystalline graphite ore flotation fast selecting agent and a flotation technology. The agent comprises following components including, by weight, 50% to 65% of methyl isobutyl carbinol, 20% to 30% of petroleum ether and 10% to 25% of acetone. The graphite ore flotation fast selecting agent can rapidly select high-quality large-scale graphite ore from neutral pulp, and high-grade large-scale crystalline graphite concentrate can be obtained through the short selection technology free of regrinding; compared with a traditional large-scale crystalline graphite ore flotation technology, graphite scales can be effectively protected, meanwhile, the consumption amount of the floatation agent can be reduced, and the production cost is reduced.

The invention relates to a processing method of refractory high-iron low-tin oxidized ore, belonging to the technical field of nonferrous metallurgy and mineral separation. The technological process of the method comprises: crushing and finely grinding ore, adding reducing agent and binding agent into the ore, preparing the obtained ore into pellets, drying, roasting and recrushing the pellets, and then carrying out wet-type ore grinding; adopting a magnetic ore separator to select out magnetic mineral iron ore concentrate, and obtaining the iron ore concentrate product containing more than 60% of iron; sorting non-magnetic mineral by cavity separation equipment such as a jerking table and the like, and obtaining qualified tin ore concentrate containing less than 40% of tin and tin-rich mineral products containing more than 4% of tin; furthermore, the total yield of tin reaches 65-75%. By adopting the process flow combining metallurgy and mineral separation, the method can greatly improve the recovery rate of the tin, simultaneously obtains an iron ore concentrate product, simplifies the process flow of the mineral separation, is short in the process flow, low in production cost and environment-friendly, can greatly improve the recovery rate of the tin and iron, effectively utilizes limited resources, and has good application and popularization prospects.

The invention relates to a method for separating copper oxide ores containing magnetic impurities. The copper oxide ores firstly goes through easily separable copper oxide flotation to obtain easily separable copper oxide concentrate and easily separable copper oxide tailings, and then difficultly separable copper oxide floatation is performed on the easily separable copper oxide tailings to obtain difficultly separable copper oxide flotation concentrate; a collecting agent used for the difficultly separable copper oxide floatation is a combined collecting agent; the combined collecting agent is composed of an yellow catching agent and 4-sodium diphenylaminesulfonate; low intensity magnetic separation and high gradient magnetic separation are orderly performed on the difficultly separable copper oxide flotation concentrate to obtain copper magnetic separation concentrate; the magnetic field intensity of the low intensity magnetic separation is 0.2-0.5T; the background magnetic field intensity of the high gradient magnetic separation is 0.7-1.2T. The separation process of the copper oxide ores is simple in flow, low in production cost and prone to industrial implementation.

The invention belongs to the field of ore dressing, and particularly relates to an ore dressing process for recycling lean magnetite. According to the process, the initial taste and the concentrate taste of ore are improved through the processes of pre-concentration before grinding, pre-concentrated concentrate treatment, pre-concentrated tailing classification, high-frequency cascade screening classification, waste ore recycling and the like, the beneficiation ratio is reduced, the production cost of a subsequent beneficiation process is reduced, and the ore dressing process is highly efficient.

The invention discloses a mineral processing method for efficiently recycling iron blast furnace ash. The method comprises the steps of ball milling, grading, size mixing, rotary kiln enrichment and the like, a two-section vertical ring pulsating high-gradient magnetic separator is adopted for magnetic separation so that the purity of iron-containing valuable metal elements in magnetic materials is greatly improved, zinc elements are enriched, carbon resources play a role of fuel in a rotary kiln, reasonable utilization of the carbon resources is guaranteed, tailings produced by the rotary kiln are subjected to magnetic separation and recovery again to obtain qualified iron ore concentrate, and slag obtained after magnetic separation is dehydrated and then serves as a building material. The mineral processing technological process is simple, the resource recycling rate is high, the mineral processing environment is good, economic benefits are high, tailings are avoided in the whole harmless production process, economic benefits are increased for the iron and steel industry, and the environmental protection pressure is reduced.

The invention provides an ore separation method and an ore separation system. The ore separation method comprises the steps that crushed products are fed into a primary ore grinding machine to be subjected to primary ore grinding, and the ground products are fed into magnetic classification pre-separation equipment to be subjected to magnetic classification pre-separation; separated concentrate products obtained through magnetic classification pre-separation are fed into primary classification equipment to be classified; overflow products subjected to primary classification are fed into ore separation equipment for concentration; and concentrate treatment is carried out on the concentrated concentrate products to separate moisture in the concentrated concentrate products to obtain final concentrate products. According to the method, the magnetic classification pre-separation equipment is selected to be connected with the primary ore grinding machine for use, the magnetic classification pre-separation equipment integrates classification and magnetic separation into a whole, and after the magnetic classification pre-separation equipment is directly used for the grinding machine, the ore grinding-classification-separation process in traditional primary ore treatment is optimized and upgraded to the ore grinding-separation process, the classification process is removed, the ore separation process is simplified, the number of devices in the process is reduced, the number of devices needing to be controlled is reduced, and the occupied area of mineral separation equipment is reduced.