8 results about "Smithsonite" patented technology

The invention belongs to the technical field of mineral flotation separation, and particularly relates to a complexing inhibitor and application thereof in mineral flotation separation of smithsonite and calcium-containing gangue. The complexing inhibitor provided by the invention is prepared by complexing a flavonoid organic compound and aluminum ions, is used for flotation separation of smithsonite and calcium-containing gangue minerals, can be selectively adsorbed on the surface of the calcium-containing gangue, effectively inhibits the floatability of the calcium-containing gangue, and has the advantages that compared with a traditional agent, the complexing inhibitor is simple in preparation method and low in cost; the method has the advantages of being high in separation efficiency, small in reagent dosage, environmentally friendly and the like, the grade and the recovery rate of smithsonite can be remarkably improved, and the method has important significance on efficient recycling of zinc oxide resources.

This invention belongs to the field of mineral processing technology, specifically relating to a selective sulfidation roasting-flotation separation method for a smithsonite-calcite mixed ore. The method first involves crushing and grinding the smithsonite, calcite, and sulfiding agent, then mixing them in a certain proportion and subjecting them to sulfidation roasting, preferentially causing the smithsonite to undergo sulfidation. After cooling the roasted product in an inert atmosphere, flotation separation is performed using xanthate as a collector to obtain zinc concentrate. By controlling the atmospheric conditions during the sulfidation roasting process, the sulfidation reaction efficiency of the smithsonite can be improved, and the generation of sulfur oxide gases during roasting can be reduced. When using this method to process the smithsonite-calcite mixed ore, effective recovery of the smithsonite can be achieved, with a flotation recovery rate exceeding 88%. This invention features a simple process flow and easily controllable operating conditions, providing a new technical approach for the efficient utilization of smithsonite resources.

The invention relates to the technical field of liquid fertilizers, and discloses a multi-element organic acid ore liquid fertilizer and a preparation method thereof.The multi-element organic acid ore liquid fertilizer is prepared from, by weight, 5-7 parts of wood vinegar, 0.5-2 parts of magnesite and 0.5-2 parts of smithsonite, the additive comprises the following components in parts by weight: 0.5-1 part of rhodochrosite, 0.5-1 part of calcium molybdate ore, 0.5-2 parts of boracite, 0-1 part of chalcopyrite, 0-1 part of siderite and a chelating agent. Medium and trace elements in the mineral powder are dissolved out through the organic acid wood vinegar, the water-soluble fertilizer is directly prepared, the cost is low, the energy consumption is low, implementation is convenient, the requirement for the grade of the mineral powder is low, even the more non-heavy metal impurities are, the higher the cost performance of the technology is, meanwhile, the byproduct wood vinegar obtained by cracking biochar through straw and other waste is well utilized, and the environment-friendly effect is achieved. According to the process, the acidity of the pyroligneous liquor is neutralized by the mineral powder, the use safety of the pyroligneous liquor is improved, and the process is also very friendly to plants, soil and environment.

The present invention relates to a decorative inorganic microcrystalline plate, characterized in that the raw material components are as follows: quartz sand is 23-27%, anhydrous sodium carbonate is 10-11%, sodium fluorosilicate is 4-6%, sodium borate decahydrate is 2-3%, smithsonite is 2.5-3%, sodium pyrophosphate is 1.5-2%, anhydrous barium sulfate is 1-1.5%, porous graphene micron flower is 0.05-0.15%, and the balance is hot high-titanium blast furnace slag. The process flow of the present application is simple, and the advanced all-electric melting technology is adopted. The decorative microcrystalline plate produced has the characteristics of good crystallization state, high yield rate, wide adjustable thickness range, etc., which can meet the diversified market needs; it can save energy and reduce consumption, and can save energy by nearly 35% compared with the traditional cold material production process of decorative microcrystalline plate, and can produce good economic and social benefits.

The present invention discloses a method for leaching zinc phase in zinc ore, which adopts hydrochloric acid-stannous chloride solution to selectively dissolve the smithsonite phase. Stannous chloride can effectively inhibit the Fe 3+ The hydrochloric acid system avoids dissolving hemimorphite in the oxidation of sphalerite, ensuring the accuracy of the zinc content determination results in the smithsonite phase; a hydrogen peroxide solution is used to selectively dissolve sphalerite, avoiding the use of saturated bromine water as a leaching agent, making it more environmentally friendly, significantly shortening the subsequent leachate treatment time, improving detection efficiency, reducing the workload of detection personnel, and facilitating industrial on-site application; it is proposed that the zinc oxidation rate in zinc ore be calculated by dividing the sum of the zinc content in smithsonite and hemimorphite by the total amount of zinc in each phase of smithsonite, sphalerite and hemimorphite, rather than dividing by the total zinc content in the sample. Calculating the oxidation rate in this way can effectively eliminate the influence of systematic errors caused by the instruments and environment during the phase separation process.

The invention discloses a low-grade zinc oxide ore amine sulfide process defoaming agent and application thereof.The low-grade zinc oxide ore amine sulfide process defoaming agent is characterized in that firstly, ore is crushed and ground to achieve monomer dissociation between minerals, and meanwhile, a small amount of sodium carbonate and sodium sulfide are added into a grinding machine to serve as regulators; lS-X1 is used as a selective defoaming agent for amine sulfide flotation of smithsonite, and zinc sulfide concentrate is obtained after a section of roughing operation; and sodium sulfide and sodium carbonate are added into the zinc sulfide tailings for activation, and zinc oxide concentrate and tailings are obtained after the one-roughing, one-refining and one-scavenging flotation process. The efficient flotation defoaming agent LS-X1 has high selective defoaming capacity, has high defoaming capacity on amine collecting agents, does not affect the flotation performance of the amine collecting agents, and can greatly reduce the foam stability of the amine collecting agents, so that flotation closed cycle can be carried out; the method has the advantages of high feasibility, wide application range, high product index and the like.

The invention discloses purple sand pug rich in trace elements. The purple sand pug comprises the following components in percentage by weight: 6%-8% of selenium silver ore, 8%-12% of strontianite, 25%-30% of spodumene, 3%-6% of smithsonite and 44%-58% of purple sand raw ore pug. The finished product is obtained by mixing the purple sand pug and the mineral aggregate rich in trace elements in the firing process, and trace elements are separated out after the purple sand pug and the mineral aggregate are soaked in water. The invention provides the purple sand pug rich in trace elements, which is high in yield and convenient to form after being fired, and the trace elements are separated out after being soaked in water, and the preparation method thereof.

The invention discloses a method for extracting zinc from low-grade smithsonite, and belongs to the technical field of wet smelting. Comprising the following steps that smithsonite is ground and screened, and to-be-treated smithsonite is obtained; carrying out calcination pretreatment on the obtained smithsonite; the calcined smithsonite is leached with a sulfuric acid solution prepared by adding manganese dioxide, the PH value of the leaching end point is controlled to be 4.8-5.0, and neutral leaching is achieved; leaching the bottom slag obtained by leaching with a dilute sulfuric acid solution again to recover zinc, and controlling the pH value at the leaching end point to be 2.0, namely acid leaching; and pulpifying and washing the obtained leaching residues with fresh water, and then carrying out filter pressing. According to the method, a pyrogenic calcination process and a wet conventional leaching process are combined, high-acid leaching is adopted in the leaching process in the wet conventional leaching process, and a hydrolysis iron removal process is adopted in the acid leaching process in a low-acid and low-iron environment. The production environment pressure of overflow caused by large foam amount in the leaching process is relieved; iron continuously enriched in the leaching process is removed; and the zinc concentration required by electrolysis production is met.