5 results about "Hexachloroethane" patented technology

The application relates to a method for preparing graphene by solid-liquid in-situ reaction and graphene prepared by the method. The method comprises the following steps: heating and melting magnesium or a magnesium alloy in a crucible to obtain a melt; adding solid hexachloroethane into the melt at a speed of 1 g / min to 20 g / min and performing mechanical stirring, and then standing to obtain a mixture containing graphene above the melt; the mass amount of the solid hexachloroethane is 2% to 5% of the mass of the melt; separating the obtained mixture containing graphene from the melt; and performing post-treatment on the mixture containing graphene separated from the melt to obtain graphene. The application provides a method for preparing graphene in large quantities at low cost, with high production efficiency and high quality; the method has the advantages of simple operation, simple production equipment, low production cost, high yield, high graphene quality, fewer defects and impurities, excellent product performance and the like.

The application discloses a method for refining magnesium-aluminum alloy crystal grains by carbon inoculation, and belongs to the technical field of magnesium alloy material processing. The method comprises the following steps: heating magnesium-aluminum alloy to 680-800 DEG C under a protective atmosphere, melting the magnesium-aluminum alloy, adding carbon inoculant hexachloroethane (C2Cl6), the adding amount being 0.1%-1.5% of the mass of the melt, adding by means of bell jar pressing, and keeping the temperature at 680-800 DEG C for 5-60 minutes, so that carbon and aluminum in the melt react in situ to generate high-density and dispersedly-distributed Al4C3 particles, which serve as effective heterogeneous nucleation cores of alpha-Mg, thereby significantly refining the crystal grains. The application is also provided with a tail gas treatment system for absorbing harmful gases such as Cl2. The method has the advantages of remarkable refining effect, strong anti-recession property, low cost, and suitability for magnesium-aluminum alloys with different aluminum contents, and solves the problems of instability, easy failure or environmental pollution in the prior art.

A left stand column and a right stand column are vertically arranged on the upper surface of a bottom plate, bearing seats are arranged on the inner sides of the upper portions of the left stand column and the right stand column, a first conical barrel and a second conical barrel are arranged at the two ends of a charging barrel respectively, a feeding port is formed in the outer end of the first conical barrel, and a discharging port is formed in the outer end of the second conical barrel. The feeding port is provided with a first flange, a left protruding shaft and a right protruding shaft are arranged on the two sides of the charging barrel, the left protruding shaft is connected with a bearing in a bearing seat on the inner side of the left stand column in a matched mode, the right protruding shaft is connected with a bearing in a bearing seat on the inner side of the right stand column in a matched mode, and an output shaft of the gear motor is connected with the right protruding shaft in a matched mode. According to the utility model, the structure is reasonable, hexachloroethane which is not completely crushed can be intercepted in the conical screen drum through the screen holes of the conical screen drum, the product quality is ensured, and the charging barrel can be turned over, so that hexachloroethane balls intercepted in the conical screen drum can be conveniently poured out.

The utility model discloses a hexachloroethane reation kettle convenient to wash is provided with kettle cover on the upper surface of cauldron body, and the central position of kettle cover upper surface is provided with motor through motor base, and the output shaft of motor is connected with the top end of stirring shaft through the coupling, and the lower end of stirring shaft is provided with stirring oar, and the water distribution plate is set up on the lower surface of kettle cover through bolt, and the upper surface of water distribution plate is provided with annular groove, and the lateral wall of water distribution plate is provided with a plurality of side water outlet holes, and the water distribution plate is located at annular groove and is provided with a plurality of bottom water outlet holes along the axial direction, and the upper surface of kettle cover is provided with water inlet, and the central hole of water distribution plate is provided with bearing sleeve, and the stirring shaft is arranged in bearing sleeve and cooperates with bearing sleeve, the utility model discloses reasonable structure, and the water distribution plate washes the inner wall of cauldron body and stirring oar through side water outlet hole and bottom water outlet hole respectively, and the convenience and cleaning effect greatly improve, and the stability is also higher than pipeline, and need not open hole in the inner wall of cauldron body, and reduce the processing difficulty of reation kettle.

The invention provides a preparation method of an aluminum-lithium alloy, and belongs to the technical field of aluminum alloy smelting. The method comprises the following steps: smelting pure aluminum, an aluminum-copper alloy, an aluminum-manganese alloy, an aluminum-zirconium alloy, a magnesium ingot and silver particles to obtain an initial melt; adding a deslagging agent into the initial melt, and stirring to obtain a purified melt; argon is introduced into the purified melt for refining, and a refined melt is obtained; and after the refined melt and lithium are subjected to vacuum melting, argon is introduced for refining, and the aluminum-lithium alloy is obtained. The pure aluminum, the intermediate alloy, the magnesium and the silver are added in batches for smelting at different temperatures according to the refractory degree of the intermediate alloy in the intermediate frequency furnace smelting stage, so that the burning loss rate of alloy elements can be reduced; hexachloroethane deslagging and stirring blowing refining can improve the degassing efficiency and control the cost, and the process matching is flexible; lithium is added into the melt in an argon state, so that the melt is prevented from being in contact with the atmosphere, the oxidation hydrogen absorption of the melt is reduced, and the high-purity melt is obtained.