A melt atomization system and a highly active spherical cuprous chloride catalyst prepared by the system and its preparation method

Abstract

The invention relates to a melting atomization system, a high-activity spherical cuprous chloride catalyst prepared through the system and a preparation method of the high-activity spherical cuprous chloride catalyst.The melting atomization system comprises a material storage barrel, a conveying feeder, a melting furnace, an atomizing tank and a screening mechanism which are sequentially connected.A rapid melting device and an atomizing tundish furnace are arranged in the melting furnace.An atomizing plate is arranged in the atomizing tank.The atomizing tundish furnace is connected with the atomizing plate through a flow guide pipe.A screen is built in the screening mechanism.The bottom of the screening mechanism is connected with a finished product package machine through a pipeline which is provided with a power discharge valve.The upper portion of the screen is connected with a rough powder collecting tank through a collecting pipeline.The melting furnace rapidly melts a cuprous chloride raw material, then the temperature is raised and kept through the atomizing tundish furnace, and molten liquid is continuously atomized.Spherical cuprous chloride powder can be continuously and industrially produced, the sphericity degree of CuCl powder is good, granularity is quite concentrated, granule dispersity is good, catalysis activity is good, and consistency of catalysis quality is high.

Description

technical field [0001] The invention relates to a production method of spherical inorganic salt powder, in particular to a melt atomization system, a highly active spherical cuprous chloride catalyst prepared by the system and a preparation method thereof. Background technique [0002] Cuprous chloride is a catalyst widely used in the organic synthesis industry. Under its catalysis, it can produce a variety of organic chemical products, such as vinyl acetylene, chlorobutadiene, acrylonitrile, methyl chlorosilane, etc. Especially in the production of methylchlorosilane mixed monomers in the organosilicon industry, it is almost a necessary catalyst. In the petrochemical industry, cuprous chloride is also commonly used as a decolorizer, desulfurizer and release agent, and is mainly used as a catalyst and reducing agent in the oleochemical industry. [0003] At present, the most widely used in the organosilicon synthesis industry is the cuprous chloride powder produced by wet m...

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Problems solved by technology

This method is to atomize the molten cuprous chloride raw material into a spherical powder with high-pressure gas. Although the catalytic properties of the spherical cuprous chloride powder are good, due to the large dispersion coefficient of the powder particle size of the gas atomization powder making technology, this method is used The prepared powder still has some deficiencies: 1), the atomized powder requires a large amount of powder re-classification and sorting in the subsequent process, and some powders that are too fine or too thick are sorted and classified to finally get the finished powder, and the yield is relatively low. Low; 2), while gas atomization consumes a large amount of atomization medium: inert gas, such as nitrogen, causes excessive consumption of energy; 3), due to the slight toxicity of cuprous chloride, a large amount of ultrafine powder is introduced after powder classification Sedimentation filtration and lye absorption mechanism, as well as a large amount of atomized exhaust gas, etc. cause a large amount of environmental pressure

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