55 results about "Stibnite" patented technology

The invention discloses a method for producing free cutting steel by using stibnite, and belongs to the field of steel and iron metallurgy and metal materials. The method is to add the stibnite of 0.01-0.5% of the total quantity of molten steel in the refining process of a ladle furnace; the adding time of the stibnite in the refining process is to add the stibnite in a ladle after deoxidation of the molten steel and before alloying; the adding condition is that the oxygen activity of the deoxidized molten steel is not higher than 120*10-6; when the stibnite is added, the temperature of the molten steel in the ladle furnace is higher than the temperature of the molten steel not added with the stibnite by 30-50 DEG C; and when the stibnite is added in the molten steel without sufficient antimony and sulfur contents, antimony metal and ferrous sulfide are replenished. The method uses the stibnite as a beneficial alloy material of the free cutting steel; the antimony and sulfur utilization rates in the stibnite both reach above 95%; the mineral resources are reasonably used; the stibnite smelting environment pollution problem is solved; and the production cost of the free cutting steel is reduced.

The invention discloses a method for preparing an antimony sulfide thin film, wherein the raw material for preparing the antimony sulfide thin film is antimony mineral which has been simply screened. The present invention utilizes the difference in melting point between antimony sulfide and other impurities in antimony minerals, and combines the one-step treatment of coating and annealing in a tubular annealing furnace to prepare a film with properties comparable to those prepared by using high-purity antimony sulfide (≥99.999%) as a raw material. film. In the process of preparing antimony sulfide film, the present invention can not only avoid the environmental pollution problem produced in the process of preparing high-purity antimony sulfide raw material, but also solve the problem of impurities and less sulfur in the preparation of antimony sulfide film from stibnite, and the process The process is simple and efficient, greatly reduces the preparation cost, is stable and reliable, and has a wide range of applications. It is suitable for most substrates that need to be coated with antimony sulfide. It is an energy-saving, efficient, green and environmentally friendly method.

A method for synergistic smelting of complex resources of antimony and gold, comprising the following steps: (1) mixing at least one of stibnite, brittle sulphur lead-antimony and antimony-containing gold ore, grinding and drying to obtain pretreated mineral material; (2) ) Mixing the pretreated ore and flux into the smelting furnace, feeding oxygen-enriched air for heating and smelting, to obtain high-temperature arsenic-antimony flue gas and precious metal slag; (3) adopting step-by-step condensation treatment of high-temperature arsenic-antimony flue gas to obtain antimony respectively , arsenic soot; (4) adding precious metal slag and metal lead into the smelting furnace, blowing air for reduction smelting, trapping precious metal by lead to obtain precious lead and tailings for capturing precious metal; (5) adding precious metal trapping Precious lead is subjected to vacuum distillation to obtain precious metal phase and lead vapor, and lead vapor is condensed to obtain lead powder. The invention realizes the synergistic smelting of precious metal and antimony, and can recover antimony and precious metal respectively, and the recovery rate of antimony and precious metal 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 stibnite and carbon materials. The suspension of the carbon material is mixed and then subjected to hydrothermal treatment and calcination to obtain the antimony sulfide-based composite material. The antimony sulfide-based composite material provided by the invention uses natural stibnite as raw material, avoids the problem of environmental pollution and high cost in the process of preparing high-purity antimony sulfide, and has a simple and efficient technological process, greatly reduces the preparation cost, and is stable and reliable. , the obtained antimony sulfide-based composite material has a wide range of applications, and has broad application prospects as a negative electrode material for lithium ion or sodium ion batteries.

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.