Egypt recycled DIN1617 meet specifications bronze alloy fire separation and wet metallurgical process linked. The copper was selectively dissolved with a H 2 O 2 ammonia solution. Lead and tin are leached with hot hydrochloric acid. PbCl 2 was precipitated by cooling. PbCl 2 was converted to PbCO 3 with a sodium carbonate solution. Cu, Pb, and Sn metals are recovered from the leached product by thermal reduction. Pyrometallurgical process further comprises melting a carbon / alkali borate flux at 1150 ~ 1300 ℃, control the number of slag. The results of the recovery efficiency parameters affecting the method studied, such as time, temperature, H 2 O 2 concentration and the chemical ratio of the leaching agent, indicate that the melting of the bronze chips cannot recover the bronze alloy according to the specification, which is due to the thermal evaporation of Sn. And Pb enters the slag. The combination is effective for recovering metals and bronze from debris. H 2 O 2 accelerates the dissolution of metals in the waste. The metal entering the slag is recycled in the same manner. The monomer metal is recovered from the leached product by hydrogen or waste activated carbon thermal reduction. The activation energy of the latter process is 83.6, 12.7 and 51.73kJ∕ mol for Cu, Pb and Sn, respectively. The maximum recovery rate of this law is 98.7 %. Preliminary economic benefit estimates indicate that the law is economically viable.
Fischer-Tropsch wax can be used in plastic processing, such as injection molding, extrusion and pelletizing industries. In the production process of masterbatch and modified plastics, Fischer-Tropsch wax contributes to the dispersion of fillers and excellent smoothness during mixing. It can be used as an external lubricant for PVC. The low viscosity can increase the production speed of the product. It helps to disperse the pigments and fillers during mixing. It is especially useful in the extrusion of high-viscosity systems. It is more than ordinary PE WAX. 40-50% less, and can significantly improve the surface gloss of the product. When using intense colors, the melted Fischer-Tropsch wax can effectively wet the dye and reduce the extrusion viscosity.
When used in the ink as a particulate powder, it can improve the wear resistance and wrinkle resistance of the applied material. When applied to the coating, it can have a wrinkling effect, and when used in a micro powder state, it can form a wrinkle effect of stripes and water lines. When powder coating resin is added, it plays a role of lubrication in the extrusion process, which can reduce screw torque, reduce energy consumption and improve production efficiency.
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