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Ore-dressing method for separating copper, lead and zinc multi-metal complex ore embedded with fine grains

A beneficiation method and polymetallic technology, applied in the mineral sorting of lead and zinc complex ore, and the copper field, can solve the problems of high energy consumption, high mutual content of concentrates, toxic chemicals, etc., and achieve low energy consumption and good separation effect. , select the effect of high index

Inactive Publication Date: 2011-10-26
河南省岩石矿物测试中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But above-mentioned enumerated method, the common problem that exists is that various metal minerals separation effect is not good, and metal recovery rate is low, and each concentrate contains higher each other, causes copper, lead, zinc concentrate product quality to be unqualified, and some methods can High consumption, some methods are poisonous agents, polluting the environment

Method used

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  • Ore-dressing method for separating copper, lead and zinc multi-metal complex ore embedded with fine grains
  • Ore-dressing method for separating copper, lead and zinc multi-metal complex ore embedded with fine grains

Examples

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preparation example Construction

[0079] The preparation method of the inhibitor yk-309 is as follows: mix carboxymethyl cellulose and sodium hydroxide at a weight ratio of 3 to 5:1, add pure water to dilute to a concentration of 15% to 20%, and then place In the reaction kettle, heat up to 90°C, keep it for 2 hours, and cool down to obtain the inhibitor.

[0080] The preparation method of the inhibitor yk-111 is as follows: firstly add 1 mole of isobutanol to the reactor, then add 0.1 mole of sodium thiocyanate, stir and heat up, and dropwise add 0.2 1 mole of propenyl chloride, drop it within 1 hour, heat up to reflux, and reflux at about 90-100°C for 2 hours, then add 0.01 mole of catalyst (RO) mTi (Cl) n(m+n=4), and then rise to Reflux at 110°C for 12 hours, cool and filter to remove the generated sodium chloride, distill off excess alcohol and halogenated hydrocarbons from the filtrate under reduced pressure, and the rest is the collector.

[0081] Described 2# oil is pine alcohol oil, composite higher a...

Embodiment 1

[0083] Using the "preferential copper-lead-zinc and other floatable" separation process of the complex copper-lead-zinc ore described in the present invention, a laboratory small-scale process test was carried out on the complex copper-lead-zinc ore in a mine, and a good separation was obtained. index.

[0084] A copper-lead-zinc polymetallic ore mainly contains copper, lead, zinc and precious metal silver, of which the copper grade is 0.54%, the lead grade is 2.01%, the zinc grade is 3.09%, and the silver grade is 125g / t. The nature of the ore is relatively complex, and the embedded particle size is relatively fine. The relationship between galena and sphalerite in the ore is very close. About 55% of the galena is wrapped by sphalerite, and sometimes it is also surrounded by tetrahedrite and pyrite. , quartz, etc., and the total amount of wrapped galena accounts for 68.30%. These galenas are difficult to completely dissociate from their carrier minerals. Especially, the galen...

Embodiment 2

[0088] A copper-lead-zinc polymetallic ore mainly contains copper, lead, zinc and silver, of which the grade of copper is 0.86%, the grade of lead is 3.63%, the grade of zinc is 5.35%, and the grade of silver is 226g / t. The symbiotic relationship of copper, lead and zinc minerals in this ore is very close, and the particle size of the mosaic distribution is very fine and uneven, and they are mosaic and wrapped with each other to form various structural structures. Therefore, it is difficult to achieve a high monomer dissociation degree in the grinding process. Coupled with the influence of secondary copper ions, the separation of copper, lead and zinc is difficult.

[0089] The raw ore is ground to -74μm by a ball mill, accounting for 85%. CaO1500g / t is added during the grinding process. The structure of the flotation process is: copper roughing stage, sweeping stage, and selection stage four; lead-zinc mixed roughing stage, sweeping stage , three stages of selection; one stag...

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Abstract

The invention discloses an ore-dressing method for separating a copper, lead and zinc multi-metal complex ore embedded with fine grains. The method comprises the following steps: firstly, preferentially separating copper by utilizing a selective collecting agent; separating a lead-zinc mixed ore with excellent flotability according to the flotability of lead and zinc minerals, and then separating lead concentrate from lead-zinc mixed concentrate by restraining lead mineral; and lastly activating the separated zinc concentrate with inferior flotability. The ore-dressing method can be used for acquiring following four products: copper concentrate, lead concentrate, zinc concentrate and lead-zinc mixed concentrate. The ore-dressing method has the advantages that selecting index is high, copper is excellently separated from zinc and lead, energy consumption is saved, no environmental pollution exists, and the like. The ore-dressing method is especially fit for separating the minerals of the copper, lead and zinc complex ore which is embedded with more than two minerals, has superfine particle size, is wrapped by minerals and is difficult to be separated.

Description

technical field [0001] The invention relates to a beneficiation method for separating fine-grained copper-lead-zinc multi-metal complex ores, especially copper, lead and zinc complex ore minerals with two or more minerals embedded in fine particle sizes, wrapped with each other and difficult to separate sorting. Background technique [0002] Copper-lead-zinc complex sulfide ores are very difficult to separate due to the dense symbiosis of several metals and the intercalation of fine particle size. The treatment of this kind of ore at home and abroad is generally to grind the ore to the required fineness, obtain copper-lead-zinc mixed concentrate through flotation, and then separate the copper-lead-zinc minerals. The main disadvantage of this process is that after the copper, lead and zinc minerals are mixed and flotation, it is difficult to remove the drug, and the re-separation effect is poor. [0003] There are three main beneficiation methods for separating copper, lead...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/002B03D1/012B03D1/018B03D101/02B03D101/06
Inventor 宋翔宇张雨田李荣改徐靖周新民朱洪波余广学乔江晖
Owner 河南省岩石矿物测试中心
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