4 results about "Scandium chloride" patented technology

The invention belongs to the field of chemical engineering, and particularly relates to a preparation method of scandium trichloride, which comprises the following steps: a) mixing scandium-containing ferro-manganese slag with carbon, and preheating to obtain a preheated material; b) chlorinating the preheated material to obtain a chloride material; c) feeding the chloride material into a vacuum smelting furnace for low-temperature vacuum smelting, raising the smelting temperature after low-boiling-point components in the material in the furnace are completely volatilized, and collecting scandium trichloride volatilized from the smelting furnace by using an organic solvent to obtain a solution containing scandium trichloride; d) removing the organic solvent in the solution to obtain scandium trichloride. According to the method provided by the invention, the high-purity scandium trichloride can be produced by using the iron-manganese slag, the scandium resource in the iron-manganese slag can be efficiently recycled, and the method has good economic benefits and environmental benefits.

The invention belongs to the technical field of magnetic functional materials, and particularly relates to an amorphous nanocrystalline strip and a preparation method thereof. The amorphous nanocrystalline strip is prepared from the following raw materials in percentage by mass: 5.6 to 6.5 weight percent of Nb, 9.5 to 10.5 weight percent of Si, 1 to 2 weight percent of B, 0.5 to 1 weight percent of Cu, 0.1 to 0.2 weight percent of Co, 0.05 to 0.1 weight percent of Zr, 0.4 to 1.5 weight percent of rare earth element, 0.5 to 1.0 weight percent of high-entropy oxide and the balance of Fe; the high-entropy oxide is prepared by the following preparation process: adding ferric chloride, cobalt chloride, nickel chloride, manganese chloride and scandium chloride into diethylene glycol, and heating, stirring, centrifuging, washing, drying and calcining under a closed condition to obtain the high-entropy oxide. The amorphous nanocrystalline strip prepared by the preparation method disclosed by the invention is relatively high in magnetic conductivity and relatively small in coercive force, and has relatively high stability in a temperature range of-40 DEG C to + 150 DEG C.

The invention provides an anhydrous scandium chloride preparation device which comprises a vacuum tube furnace tube which is divided into a heating reaction zone and an extended condensation zone from left to right; the extended condensation area is further divided into a water absorption drying area and a dust collection area, gas firstly passes through the water absorption drying area, and due to the fact that the water absorption drying area is close to the heating reaction area, ammonium chloride cannot be condensed and only absorbs water; after passing through the water absorption drying area, the gas enters the dust collection area, and in the dust collection area, ammonium chloride in the gas can be condensed into powder which is intercepted and collected in the dust collection area by a filter. Besides, the cooling coil is wound on the periphery of the dust collecting area, so that the temperature of the area can be reduced, the ammonium chloride can be cooled and collected to the maximum extent, and equipment failure caused by the fact that ammonium chloride dust enters a vacuum system is avoided.

This invention belongs to the field of magnetic functional materials technology, specifically relating to an amorphous nanocrystalline ribbon and its preparation method. The amorphous nanocrystalline ribbon is composed of the following raw materials in the indicated mass percentages: Nb 5.6-6.5 wt%, Si 9.5-10.5 wt%, B 1-2 wt%, Cu 0.5-1 wt%, Co 0.1-0.2 wt%, Zr 0.05-0.1 wt%, rare earth elements 0.4-1.5 wt%, high-entropy oxide 0.5-1.0 wt%, with the balance being Fe. The high-entropy oxide is prepared by adding ferric chloride, cobalt chloride, nickel chloride, manganese chloride, and scandium chloride to diethylene glycol, heating and stirring under sealed conditions, followed by centrifugation, washing, drying, and calcination to obtain the high-entropy oxide. The amorphous nanocrystalline ribbon prepared by this invention exhibits high magnetic permeability, low coercivity, and high stability within the temperature range of -40℃ to +150℃.