The invention discloses a flotation method for a copper-containing nickel sulfide ore. In order to solve the problem that nickel-containing sulfide is easily oxidized in the flotation process, the invention provides a flotation method which can ensure that the nickel-containing sulfide is not oxidized and can make a part of oxidized nickel ore activated, namely sulfite serving as an antioxidant of nickel sulfide is added during grinding operation of the copper-containing nickel sulfide ore, and sulfate serving as an activating agent with the same weight as the sulfite is added before flotation operation, so that the using amount of the antioxidant is sufficient, the requirement of preventing or delaying the nickel sulfide from being oxidized is met, and the nickel-containing sulfide such as pentlandite and the like is activated. Compared with the conventional flotation method in which the antioxidant is not added, the anti-oxidation method has the advantages that: the grade of a copper-nickel mixed concentrate can be improved by about 1 percent, the recovery rate of copper can be improved by 0 to 2 percent, and the recovery rate of nickel can be improved by 4 to 6 percent.

Flotation method for copper-containing nickel sulfide ore

The invention discloses a method for recycling sphalerite from separated tailings of lead-sulfur bulk concentrate. The method for recycling the sphalerite from the separated tailings of the lead-sulfur bulk concentrate comprises the steps that firstly, water is added to the separated tailings of the lead-sulfur bulk concentrate, and the mass percent concentration of a pulp is adjusted to be 25%-32%; secondly, an appropriate amount of lime is added so that the pH value of the pulp can be adjusted, and pyrite is inhibited at the same time; thirdly, copper sulfate is added as an activating agent to activate the sphalerite; and finally, a collecting agent, aniline, and a foaming agent are added for flotation of the sphalerite, the flotation procedure comprises one-time rough flotation, two-time scavenging and three-time concentration (after the concentrate obtained through rough flotation is ground to the extent that the ores reaching the grain level of >-0.043 mm account for 90%, concentration is conducted ), and effective concentration of the sphalerite is achieved. According to the sphalerite obtained through the method, the zinc grade is higher than 40%, and the recovery rate of zinc is higher than 80%. By the adoption of the method for recycling the sphalerite from the separated tailings of the lead-sulfur bulk concentrate, the zinc lost in the lead-sulfur separated tailings, namely sulfur products, can be well recycled, the comprehensive recovery rate of zinc is improved, and the economic benefits of a concentrating plant are increased.

Method for recycling sphalerite from separated tailings of lead-sulfur bulk concentrate

The invention discloses a mineral beneficiation method of complex and refractory high-grade copper sulfide ore. The method comprises the steps that high-grade copper sulfide raw ore is crushed; the ore is ground; pulp is adjusted; high-grade copper sulfide ore rough scavenging is performed; and concentrate roughing, grinding and selection are performed in sequence. According to the mineral beneficiation method of the complex and refractory high-grade copper sulfide ore, through an efficient inhibitor XKY-03, inhibition of pyrite minerals is enhanced selectively, and inevitable activation of ions to the pyrite minerals in the ore pulp is eliminated selectively; through an efficient collector XKP-03, collecting of copper sulfide minerals is selectively enhanced; and meanwhile, before flotation, by adopting quick lime and NaOH, the pH of the ore pulp is adjusted to be strongly alkaline, then flotation is performed, part of the pyrite minerals is inhibited, influences of the pyrite minerals on flotation of the copper sulfide minerals are reduced, and accordingly, the copper sulfide minerals, the pyrite minerals and gangue minerals are efficiently separated. The mineral beneficiation method has the characteristics of being good in separation effect, stable in mineral beneficiation index, small in agent consumption amount, easy and convenient to operate and easy to operate and manageon site, is a novel method suitable for mineral beneficiation of the complex and refractory high-grade copper sulfide ore, and is suitable for application and popularization.

Mineral beneficiation method of complex and refractory high-grade copper sulfide ore

The invention provides a method for flotation separation of chalcopyrite and talc by using locust bean gum and belongs to the technical field of mineral separation between copper sulfide minerals and hydrophobic silicate gangue. According to the method, the chalcopyrite and the talc are levigated; the levigated chalcopyrite and talc are put into a flotation tank of a tank-hanging flotation machine; a moderate amount of water is added and stirred, and pulp mixing is conducted; a pH regulator is used for regulating the pH value of an ore pulp; an inhibitor, namely, the locust bean gum, a collecting agent, namely, butyl xanthate and a foaming agent, namely, No.2 oil are added and stirred separately for 1-5 min; and pneumatic flotation is carried out, and a finished ore product and a tailing product are obtained. The efficient inhibitor, namely, the locust bean gum can be selectively adsorbed to a hydrophobic silicate gangue surface, therefore, the selective inhibiting effect on hydrophobic silicate gangue talc is achieved, and the separation between the chalcopyrite and the talc is achieved. Meanwhile, the agentia is free of toxicity, easy to degrade, wide in source and low in cost.

Method for flotation separation of chalcopyrite and talc by using locust bean gum

The invention discloses an inhibitor and an ore dressing method of high-sulfur refractory copper and sulfur ore. The inhibitor is composed of lime and sodium hexametaphosphate at a mass ratio of 2.0-4.0:0.2-0.6 through mixing. The ore dressing method comprises following steps: raw ore grinding, copper sulfur bulk flotation coarse roughing, copper sulfur bulk flotation scavenging, copper sulfur bulk rough concentrate secondary grinding, copper sulfur bulk rough concentrate refining and refining scavenging, copper sulfur bulk concentrate separating coarse roughing, and copper sulfur separating refining. According to the ore dressing method, bulk rough concentrate secondary grinding is carried out, and then bulk flotation refining is carried out, so that further removing of a part of gangue is realized; a high efficiency inhibitor is adopted for reinforcement of inhibition on iron sulfide ore, and elimination activation of unavoidable ions in ore pulp on ferric sulfide ore, and at last, high efficiency separation of copper sulphide ore, ferric sulfide ore, and gangue is realized. The ore dressing method is simple and convenient; agent consumption amount is reduced; waste water high alkalinity problem is solved; copper sulfur separation effect is excellent; at laste, high grade copper concentrate and sulfur concentrate are obtained; and the ore dressing method is suitable for popularization and applications.

Inhibitor and ore dressing method of high-sulfur refractory copper and sulfur ore

The invention discloses a collector for concentrating minerals containing domeykite and a processing method, and belongs to the technical field of mineral concentration. The collector is mixed from isopropyl-ethylthiocarbamate and kerosene in the mass ratio of 1:1-1:3. The method comprises the following steps: by utilizing the collector, carrying out grinding, copper rough concentration, copper fine concentration, arsenium rough concentration, arsenium fine concentration, arsenium scavenging and the like, thereby respectively obtaining low-arsenium copper concentrate and high-arsenium copper concentrate. By using the method, most copper mineral is enriched in the low-arsenium copper concentrate, and little copper mineral is enriched in the high-arsenium copper concentrate; and the method is beneficial to realizing respective treatment of two copper concentrates, lowering the cost and realizing comprehensive recycling of copper mineral. The method has the advantages of simple technology, convenient operation and easy realization of mineral concentration.

Collector for concentrating mineral containing domeykite and processing method

The invention discloses a beneficiation method for copper sulphide zinc ore containing easily-floating gangue. The beneficiation method comprises the steps that copper roughing is carried out, wherein zinc depressants, copper collecting agents and foaming agents are added in raw ore pulp of the copper sulphide zinc ore, flotation operation is carried out, and thus copper rough concentrate mainly containing copper and the easily-floating gangue and copper rougher tailings mainly containing zinc are obtained; separation between copper and gangue is carried out, wherein gangue depressants and zinc depressants are added in the copper rough concentrate, floatation is carried out, and copper secondary rough concentrate mainly containing copper and copper and gangue separated tailings mainly containing the easily-floating gangue are obtained. According to the beneficiation method for copper sulphide zinc ore containing easily-floating gangue, the easily-floating gangue can be effectively removed so that high-grade copper concentrate and high-grade zinc concentrate are obtained, the recovery rate of the copper concentrate and the recovery rate of the zinc concentrate can be substantially improved.

Beneficiation method for copper sulphide zinc ore containing easily-floating gangue

The invention provides a copper and sulphur separation method for copper-sulphur ore and relates to a method for separating copper from sulphur in copper-sulphur ore flotation rough concentrate. The copper and sulphur separation method for the copper-sulphur ore is characterized in that the steps of a treating process comprise that (1) ore grinding is conducted on copper-sulphur rough concentrate obtained through flotation; (2) after the ore grinding, a sulfur inhibitor selected from sodium sulfite, sodium metabisulfite, sodium bisulfate and sodium thiosulfate is added to the copper-sulphur rough concentrate, and a sulfur inhibition reaction is conducted; (3) a copper selective collector is added, and flotation is conducted; (4) a humate inhibitor is added to a flotation froth product; after an reaction with mixing is conducted, concentration is conducted; and (5) a humate inhibitor is added to a concentration froth product; after an reaction with mechanical mixing, concentration is conducted again, and copper concentrate separated from the sulphur is obtained. The copper and sulphur separation method for the copper-sulphur ore is simple in technology; lime and other highly alkaline inhibitors are not required to be added; required reagents are extensive in source and easy to prepare and add; the prepared reagents are good in flowability, easy to control, and not liable to block pipelines. The copper and sulphur separation method for the copper-sulphur ore is a novel copper and sulphur separation method.

Copper and sulphur separation method for copper-sulphur ore

The invention discloses an ore dressing method of copper-cobalt ores. The ore dressing method comprises the following steps: first, carrying out ore grinding treatment on copper-cobalt raw ores, adding a certain quantity of regulator in an ore grinding process, and regulating the pH value of ore slurry within a 9-10 range; sequentially adding a collector and a foaming agent into the ore slurry which is treated by ore grinding, carrying out copper-cobalt bulk flotation rough concentration, and after scavenging twice, obtaining tailings; adding an inhibitor into bulk flotation foams, and after carrying out fine concentration for three times, obtaining copper-cobalt bulk concentrates; using the copper-cobalt bulk concentrates as fed ores, carrying out regrinding treatment, adding a certain quantity of regulator in a regrinding treatment process, and regulating the pH value of the ore slurry within a 12-13 range; sequentially adding an inhibitor and a collector into the ore slurry which is treated by regrinding, carrying out copper-cobalt separating flotation, and obtaining cobalt concentrates after one rough concentration and one scavenging; and after carrying out fine concentration twice on the foams which are subjected to copper-cobalt separating flotation, obtaining copper concentrates. The method can effectively separate the copper-cobalt ores and obtain high-quality copper and cobalt concentrates.

Ore dressing method of copper-cobalt ores

The invention discloses a beneficiation method for high-calcium type fluorite Firstly, a regulator is added in high-calcium fluorite ore pulp, and the pH value of the ore pulp is controlled to be within the range from 7 to 8; an activating agent, an inhibitor and a collecting agent are sequentially added in the ore pulp, and first-time tailings are generated after floatation roughing and first-time scavenging are conducted; concentration is then conducted on foam generated after floatation roughing, a regulator is added, and the pH value of the ore pulp is controlled to be within the range from 65 to 7; an inhibitor and a collecting agent are sequentially added in the regulated ore pulp, concentration and second-time scavenging are conducted, and second-time tailings are generated; and then an inhibitor is added, fifth-time concentration is conducted, and high-grade fluorite concentrate is obtained By means of the method mentioned above, decalcification can be effectively conducted, meanwhile, the production flow can be simplified, the problems that middlings are large in circulation quantity, the separation efficiency is low and the floatation process is instable are solved, and the production efficiency is improved

Liu Wanfeng

Papers

Collector for concentrating mineral containing domeykite and processing method

Beneficiation method for copper sulphide zinc ore containing easily-floating gangue

Copper and sulphur separation method for copper-sulphur ore

Ore dressing method of copper-cobalt ores

Beneficiation method for high-calcium type fluorite