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

The invention relates to a beneficiation method for improving the recovery rate of low-grade zinc oxide ore, which comprises the following steps: washing ore at normal temperature to remove impurities; mixing and selecting oxide minerals and sulfide minerals; and carrying out zinc rough selection and zinc scavenging by using modified alkylamine zinc oxide chelating collector ZJ-5. The invention has the characteristics of easy purchase and low cost of the collector ZJ-5, short process flow, low cost of beneficiation cost, wire range of application, high grade and recovery rate of zinc ore concentrate and the like and is applicable to the low-grade zinc oxide ore.

The invention discloses a beneficiation method for spodumene ore. The spodumene ore is crushed and ground, ore pulp obtained after ore grinding is sequentially subjected to low-intensity magnetic separation and high-intensity magnetic separation, and weak-magnetism concentrates and strong-magnetism concentrates are obtained; discharged strong-magnetism tailings are fed to the flotation operation after being subjected to concentration and desliming, and the flotation operation process includes primary roughing, secondary scavenging and secondary fine selecting; calcium fatty acid prepared through the double decomposition reaction of a sodium fatty acid soap solution and a calcium chloride water solution is adopted as a collecting agent, the Li2O grade in the finally-obtained lithium concentrate reaches up to 5.7%-6.2%, and the recycling rate is 78%-88%. According to the beneficiation method, the beneficiation technology process is simple, stability and reliability are achieved, applicability is high, and the laboratory index highly conforms to the industry application index; and the defect that in the existing spodumene ore beneficiation technology, the difference between the industry application index and the laboratory index is large is overcome; and the adopted collecting agent has excellent properties that selectivity is good, the collecting capability is high, and environment friendliness is achieved.

The invention relates to a treatment method for refractory high-iron and low-tin oxide ore, which belongs to the technical field of nonferrous metal metallurgy and ore dressing. The technological process of the present invention is: crushing and grinding the ore, adding reducing agent and binder to make pellets, drying, roasting, crushing, and then wet grinding, and using a magnetic separator to select magnetic minerals Iron concentrate, to obtain iron concentrate products containing more than 60% iron, non-magnetic minerals are sorted by gravity separation equipment such as a shaker, to obtain qualified tin concentrates containing more than 40% tin and tin-rich minerals containing more than 4% tin For medium ore products, the total recovery rate of tin reaches 65-75%. The method adopts the combined process of metallurgy and ore dressing, which greatly improves the recovery rate of tin metal, and at the same time obtains an iron ore concentrate product, simplifies the ore dressing process, has short process, low production cost, and is environmentally friendly, and can greatly increase the yield of tin and iron metals. Recovery rate, effective use of limited resources, has good application and promotion prospects.

The invention discloses a beneficiation method for processing low-grade tin-lead-zinc polymetallic oxide ore. Firstly, the raw ore is crushed and ball milled; Concentrate, middle ore 1 and tailings 1; tailings 1 is re-selected on a shaking table in the second stage to obtain rough concentrate 2, middle ore 2 and tailings; middle ore 1, rough concentrate 2 and middle ore 2 are re-selected After grinding, return to the primary shaker for re-election. Mix tin, lead, antimony, silver, zinc and indium with coarse concentrate for reverse flotation; the materials in the flotation tank are re-selected by shaking table to obtain qualified tin concentrate, middle ore three and tailings; middle ore three is directly merged into flotation Select the foam product and obtain the mixed concentrate of tin, lead, antimony, silver, zinc and indium. The present invention adopts the combination of the gravity separation process and the reverse flotation process of the gravity-concentration rough ore product, requires fewer types of chemicals, lower dosage, and less environmental pollution, conforms to the national policy of clean production and circular economy, and achieves energy saving, emission reduction, and environmental protection. The purpose of consumption and comprehensive utilization of resources.

The invention discloses a collector for sorting lead ores, which is prepared from the following raw materials in parts by weight: 50-120 parts of pentylenepentyl alcohol, 10-30 parts of carbon disulfide, 30-80 parts of monochloroacetic acid, and n-butylamine aqueous solution 50-80 parts, pentaerythritol 50-200 parts, terpineol oil 50-150 parts, caustic soda 20-60 parts, sodium sulfide 20-100 parts, water glass solution 50-150 parts, diesel oil 10-30 parts, active nickel catalyst 0-10 parts; the volume percent concentration of n-butylamine in the n-butylamine aqueous solution is 50%-70%. In addition, the invention also provides a preparation method of the collector. The collector of the present invention has collecting performance on lead sulfide and lead oxide, therefore, the collector can select lead sulfide and lead oxide at the same time, without first selecting lead sulfide and then lead oxide. The grade and recovery rate of lead concentrate obtained by collector flotation are significantly higher than those of conventional reagents.