Fluidized bed reactor for the preparation of chlorosulfonated polyethylene by gas-solid method

Abstract

The invention relates to a fluidized bed reactor for preparing chlorosulfonated polyethylene by a gas-solid method. The fluidized bed reactor comprises a main body of the fluidized bed reactor, wherein the main body of the fluidized bed reactor comprises a straight tube section and a reactor expansion section; the top end of the straight tube section is connected with the bottom end of the reactor expansion section; the inner diameter of the reactor expansion section is larger than that of the straight tube section; a gas premixing chamber is formed at the bottom of the main body of the fluidized bed reactor; a predistribution device is arranged at the bottom of the inner wall of the gas premixing chamber; a plurality of layers of gas distribution plates are arranged between the gas premixing chamber and the main body of the fluidized bed reactor; an ultraviolet lamp glass tube stack formed by annularly arranging a plurality of glass tubes is arranged in the center of the straight tube section, or a plurality of holes are equidistantly and radially formed in the inner wall of the straight tube section along the circumference; and the glass tubes are arranged in the holes. The fluidized bed reactor has the advantages of effectively preventing particles close to the wall surface from being adhered on the wall surface or settled; eliminating dead zones of the whole fluidized bed layer; making reactions more uniform because reaction materials in the bed layer are sufficiently irradiated by ultraviolet.

Description

technical field

[0001] The invention relates to the field of chemical equipment, in particular to a fluidized bed reactor for preparing chlorosulfonated polyethylene by a gas-solid method. Background technique

[0002] Chlorosulfonated polyethylene is an elastomer modified by replacing high-density polyethylene with chlorine and adding a small amount of sulfonyl groups. It has good coloring, oil resistance, heat resistance, oxidation resistance, weather resistance, corrosion resistance, flame retardancy and wear resistance, and has a wide range of uses. It has been widely used in wire and cable, waterproof membrane, automobile industry and other fields, and has become a commonly used special rubber.

[0003] The gas-solid method is a new chlorosulfonated polyethylene production process developed in recent years. Compared with the traditional solvent dilution process, this method is more environmentally friendly and has low energy consumption. At the same time, due to the ...

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