54 results about "Stibnite" patented technology

The invention provides a method for separating lead and antimony of jamesonite. The method comprises the following steps: controlling proper heating temperature and condensing temperature according to the special molecular organization of the jamesonite (Pb4FeSb6S14); and respectively volatilizing and condensing galena (PbS) and stibnite (Sb2S3) by means of a special vacuum environment so as to effectively separate the lead and the antimony from each other. According to the invention, the galena and the stibnite can be directly obtained by directly treating the jamesonite; the jamesonite is treated by using an economic and environment friendly vacuum technology and no reagent needs to be consumed; and the method for separating the lead and the antimony of the jamesonite, provided by the invention, has the advantages of low production cost, no pollution to the environment, no requirement on raw material component content, and wide adaptability; and because no alloy is generated, the product can be directly used for smelting lead-antimony metals.

The invention discloses a method for preparing a carbon fiber/antimony sulfide composite negative electrode of a lithium ion battery. Natural stibnite can be directly used as an electrode active substance, and carbon fiber is used as a conductive matrix. The novel negative electrode material in which the carbon fiber matrix is coated with the nanoscale antimony sulfide is synthesized through melting. The structure effectively releases the stress change in the antimony sulfide crystal grains in the lithium embedding process; meanwhile, the transmission path of Li<> and electrons in the materialis shortened, the carbon fiber matrix provides an excellent conductive network for the composite material, and because the natural stibnite can be used as a direct raw material of an electrode activesubstance, a high-energy-consumption and high-pollution metallurgy purification process is removed; the nano composite material is prepared by adopting a solid-phase mixed melting method, and a wastetreatment process is removed.

The invention discloses a smelting processing method adopting oxygen-enriched molten pool for stibnite. The method comprises the steps that oxygen-enriched air is blown into the oxygen-enriched moltenpool, then stibnite materials, aluminum oxide waste red mud, lime and a reducing agent are mixed and then fed into an oxygen-enriched smelting tank for oxygen-enriched reduction smelting, the antimony oxide with 86% of the antimony is obtained, and the temperature in the molten pool is controlled to be 990-1360 DEG C in the smelting process; the antimony oxide and the waste residue are recoveredand separated; and flue gas containing SO2 discharged from the top of the oxygen-enriched molten pool is collected, and the flue gas is recycled through waste heat, the flue gas is carried out purifying and dust removing, and sent into a sulfuric acid workshop for acid production, and the collected smoke dust and the waste residue are subjected to granulation and then returned to the oxygen-enriched smelting pool for the oxygen-enriched reduction. The method has the advantages that the adaptability of raw materials is high, the energy consumption is low, the direct yield of the antimony metaland the recovery rate are high, the treatment process is short, the process is stable, the production efficiency is high, the labor intensity is low, the production is clean and environment-friendly,environmental pollution and stacking management of the red mud are reduced, and the method has a good application prospect.

A method for gold separation by means of removing antimony is used for treating refractory gold and antimony ores by a leaching antimony removing process, so that the antimony in an ion state is turned into a liquid phase, and the gold in a crystalline state remains in a solid phase. The refractory gold and antimony ores at least comprise elementary gold and gold-carrying minerals; the elementary gold includes visible gold and invisible gold; the gold-carrying minerals at least include gold-carrying oxygenic salt minerals and gold-carrying sulfide minerals; the oxygenic salt minerals at least include carbonate minerals and silicate minerals; and the sulfide minerals at least include antimony glance and (or) iron pyrite and (or) arsenic pyrite. An antimony removing gold separation dressing and smelting technology for implementing the method for gold separation by means of removing the antimony is characterized by comprising 1), treating the refractory gold and antimony ores by the leaching antimony removing process so that the antimony in the ion state is turned into the liquid phase and the gold in the crystalline state remains in the solid phase; 2), performing solid and liquid separation for ore pulp obtained after leaching, and generating a liquid phase and a solid phase; 3), treating the liquid phase by a displacement antimony settling process so that the antimony is turned into a crystalline state from the ion state; and 4), treating the solid phase by a floatation process so that the elementary gold and the gold-carrying sulfite minerals are separated from gangues.

The invention belongs to the technical field of gold ore mineral processing, and in particular, relates to a chlorine dioxide preoxidation method of sulfur-contained gold ores. Chlorine dioxide is used as an oxidizing agent for redox reaction with such sulfides as stibnite, pyrite, arsenopyrite, galena, blende and chalcopyrite in refractory gold ores, so that gold surrounded by the sulfides is released, the contact probability of gold with gold leaching medicament is increased, the gold recovery rate in subsequent leaching flow is increased, and the consumption of the gold leaching medicamentis reduced. The used oxidizing agent-chlorine dioxide is safe and nontoxic, and has higher environmental protection advantage. Chlorine dioxide is prepared by direct reaction of binary solid medicament in pulp, is prepared when being needed, is not needed to store, and is high in conversion efficiency. The method is performed under the conditions of low temperature, normal pressure and no need ofcontrolling acidity; reaction conditions are mild; and requirements on a reaction container are low. In conclusion, the method is a new method for metal sulfide ore wet oxidation pretreatment with environmental protection, high efficiency and prominent economical benefit.

The invention provides an antimony concentrate vacuum smelting device. The antimony concentrate vacuum smelting device comprises a shell, a program temperature control device and a pressure control device, wherein a smelting cavity, a charging port and a pressure control port are arranged in the shell, and the charging port and the pressure control port communicate with the smelting cavity; the charging port is used for adding stibnite, reducing fuel and an alkaline additive; the program temperature control device is used for controlling the temperature in the smelting cavity in stages; and the pressure control device communicates with the pressure control port and is used for controlling the vacuum degree in the smelting cavity. By adopting the vacuum smelting device to extract metallic antimony from the stibnite, the recovery rate of the metallic antimony is greatly improved, the process flow is simplified, and the recovery cost is reduced.

The invention discloses a corrosion-resistant cement clinker warehouse top conveyor. A processing method for steel in the corrosion-resistant cement clinker warehouse top conveyor comprises the steps that (1) high-manganese steel, zinc oxide, chromic oxide, nickel sulfate, graphite, asbestos, chalcocite, stibnite and cassiterite are molten at the temperature of 1390-1450 DEG C so as to obtain molten mixture; and (2) silicon carbide, magnesium borate whiskers, graphene and the molten mixture are reheated at the temperature of 1550-1620 DEG C, and then water quenching is conducted at the temperature of 1240-1310 DEG C so as to obtain the steel in the corrosion-resistant cement clinker warehouse top conveyor. The corrosion-resistant cement clinker warehouse top conveyor has excellent mechanical strength and corrosion resistance.

The invention discloses a method used for leaching antimony and manganese simultaneously from stibnite and pyrolusite. The method comprises the steps that (1) the stibnite and pyrolusite are disposedin hydrochloric acid solutions to be leached simultaneously, and then liquid-solid separation is conducted on leached ore pulp to obtain leaching liquid I containing antimony manganese salt solutionsand sulfur-containing leaching residue; (2) antimony powder is added to the leaching liquid I for restoring to obtain leaching liquid II with antimony butter and manganese chloride as priority; and (3) the leaching liquid II is hydrolyzed, and antimony oxychloride hydrolysis residue and manganese chloride solutions can be obtained after liquid-solid separation. A wet process is adopted to leach the antimony and the manganese simultaneously from the stibnite and the pyrolusite, and poor production environment, serious sulfur dioxide pollution and other problems in the pyrometallurgy process areeffectively avoided. The method is suitable for low-grade stibnite and low-grade pyrolusite to improve the utilization rate of increasingly depleted antimony ore and manganese ore resources and reduce environmental pollution.

The invention discloses a method for preparing steel additives through waste rare earth materials. The method is characterized by comprising the following steps that S1, silicon iron, lime, fluorite, graphite, iron and the waste non-alloy rare earth materials are added into an electric-arc furnace, stibnite and/or bismuthinite are added into the electric-arc furnace, and the electric-arc furnace is electrified for smelting; S2, residues inside the furnace are poured out, one or more of ferrotitanium, ferroboron and waste alloy rare earth materials are added into the electric-arc furnace, nitrogen is introduced, and stirring is conducted; and S3, cooling is conducted, and the finished steel additives are obtained. Compared with the prior art, the method for preparing the steel additives through the waste rare earth materials has the advantages that environmental friendliness is achieved, energy is saved, the steel additives can be produced by directly recycling the waste rare earth materials, and secondary pollution is avoided.

A preparation method of an auxiliary collecting agent for improving the recovery rate of associated gold in antimonite comprises the following steps: first mixing oxalic acid, hydrochloric acid and water at a mass ratio of (1-1):(1-2):(2-3) to obtain a solution 1; then adding ammonium phosphate into the solution 1 at a mass ratio of (1-2):(2-5), and performing stirring at 70-75 DEG C to dissolve the ammonium phosphate to obtain a solution 2; and next, adding ammonium sulfolipid into the solution 2 at a mass ratio of (1-2):(1-3), conducting reaction for 2-4 h at 2-2.5Mpa to obtain a liquid agent, namely the auxiliary collecting agent.

The invention discloses a method for preparing antimony sesquioxide by stibnite concentrate. The method comprises the steps as follows: adding a solution subjected to a chlorination leaching reaction and a primary reduction reaction with sodium thiosulfate for removing arsenic, depositing for at least 24 hours to enable the arsenic content in a liquid phase to be lower than 30 ppm, filtering, adding filter liquor with copper sulfate pentahydrate for removing excess sodium thiosulfate, and hydrolyzing, neutralizing and drying filter liquor after reactions to prepare the high-purity antimony sesquioxide with the iron, lead and arsenic content of less than 10 ppm, the copper content of 1 ppm and the whiteness of more than 93%. According to the method for preparing antimony sesquioxide by stibnite concentrate, the whiteness stability of antimony sesquioxide can be improved and the production process can be simplified.

The invention discloses an antique white-green glaze and a preparation method thereof, and a preparation method of an antique white-green glaze ceramic product, and belongs to the technical field of ceramics. The antique white-green glaze is characterized by comprising the following components in parts by mass: 70-80 parts of kaolin, 6-8 parts of feldspar, 5-7 parts of quartz, 2-5 parts of zinc oxide, 3-6 parts of calcium carbonate, 13-20 parts of stibnite, 7-8 parts of wollastonite, 6-9 parts of chalk soil, 11-17 parts of diabase, 1-3 parts of iron oxide and 5-11 parts of medical stone. The prepared antique white-green glaze ceramic product is high in glaze stability, high in strength and old-fashioned.

The invention discloses an antimony-gold complex resource collaborative smelting method. The method comprises the following steps: (1) mixing at least one of stibnite and jamesonite with antimony-containing gold ore, grinding and drying to obtain pretreated ore charge; (2) mixing the pretreated ore charge with a fluxing agent, feeding the mixture into a smelting furnace, and introducing oxygen-enriched air for heating and smelting to obtain high-temperature arsenic-antimony flue gas and precious metal furnace slag; (3) performing step-by-step condensation treatment on the high-temperature arsenic-antimony flue gas to obtain antimony flue dust and arsenic flue dust respectively; (4) adding the precious metal furnace slag and metal lead into the smelting furnace, blowing in air for reduction smelting, and capturing precious metals through the lead to obtain precious lead into which the precious metals are captured and tailings; and (5) carrying out vacuum distillation treatment on the precious lead into which the precious metals are captured to obtain a precious metal phase and lead steam, and condensing the lead steam to obtain lead powder. According to the antimony-gold complex resource collaborative smelting method, cooperative smelting of the precious metals and antimony is achieved, antimony and the precious metals can be recovered respectively, and the recovery rate of antimony and the precious metals of gold and silver is high.

The invention discloses an antimony sulfide-based composite material, and a preparation method and application thereof. The antimony sulfide-based composite material is prepared from natural stibniteand a carbon material, and specifically, a solution obtained by dissolving the natural stibnite is mixed with a suspension containing the carbon material, and hydrothermal treatment and calcination treatment are performed to obtain the antimony sulfide-based composite material. The antimony sulfide-based composite material provided by the invention takes natural stibnite as a raw material, avoidsthe problems of environmental pollution and high cost in the process of preparing high-purity antimony sulfide, is simple and efficient in technological process, greatly reduces the preparation cost,is stable and reliable, is wide in application range, and has a wide application prospect as a lithium ion or sodium ion battery negative electrode material.

The invention discloses a preparation method for an antimony sulfide film. Raw materials for preparing the antimony sulfide film are stibnite which is simply screened. According to the preparation method, melting point differences of antimony sulfide in the stibnite from other impurities are used, tubular annealing furnace coating and annealing one-step treatment is used in cooperation, and the film which can be on a par with a film made of a raw material being high-purity antimony sulfide (with the purity higher than or equal to 99.999%) is prepared. In the process of preparing the antimony sulfide film, the preparation method can avoid the environmental pollution problem generated in the process of preparing the high-purity antimony sulfide raw material, can solve the problems of impurities and insufficient sulfur in the process of preparing the antimony sulfide film through the stibnite, is simple and efficient in technological process, greatly reduces the preparation cost, is stable, reliable, wide in application range and suitable for most substrates requiring coating with antimony sulfide, and is an energy-saving, high-efficiency, green and environment-friendly method.

The invention discloses a sulfuration roasting flotation process for low-grade antimony oxide ore. According to oxidation antimony ore (antimony ore is cervantitepseudomorph after stibnite and stibnite, gangue minerals are mainly quartz and calcite) containing 0.5%-2% Sb (stibium, by mass ratio), the ore is filtered and dried after 65%-85% ore (by mass ratio) is grinded to be minus 0.074mm (millimeter) in fineness, 1%-3% elemental sulfur powder (by mass ratio) is mixed up in fine ore and goes through reducing roasting under the temperature of 300-450 DEG C for 30-45 minutes, roasted products cool naturally, and then combination collecting agent of amyl xanthate and ammonium dibutyldithiophosphate is added and stibium is recovered according to sulfuration antimony ore flotation process. By the aid of the sulfuration roasting flotation process, the problem of low recovery and use rate of oxidation antimony ore resources is solved, compared with conventional antimony oxide reelection and flotation processes, grade and recovery rate of stibium in the fine ore can be greatly improved, and a good application prospect is provided for middle-and-low grade complex antimony oxide ore resources difficult in flotation.

The invention discloses a method for preparing a silicon-calcium-barium-aluminum alloy from ore raw materials, and relates to the technical field of multi-component alloy preparation. The method comprises the following steps of S1, cleaning silica, lime, barium ore, bauxite, semi-coke, fluorite, stibnite, bismuthine and lead-zinc slag, and crushing; S2, mixing the crushed silica, lime, barium ore, bauxite, semi-coke, stibnite and bismuthine in proportion, adding the mixture into a preheated submerged arc furnace for smelting in multiple times, and feeding once every 25 to 40 minutes; S3, adding the fluorite into the furnace 20 to 30 minutes before the smelted alloy is discharged out of the furnace; and when the furnace temperature is higher than 1780 DEG C, adding the lead-zinc slag to lower the furnace temperature, and obtaining the silicon-calcium-barium-aluminum alloy after normal circulating smelting is conducted for 2.5 to 4 h. The silicon-calcium-barium-aluminum alloy prepared by the method provided by the invention has excellent mechanical properties, high hardness and good wear resistance; and the silicon-calcium-barium-aluminum alloy is good in deoxidizing capacity and desulfurizing capacity, can be used as a deoxidizing agent and a desulfurizing agent for a steelmaking process, and is beneficial to effectively improving the quality of steel.