System and process for producing high-viscosity chlorinated paraffin

Abstract

The invention discloses a system and process for producing high-viscosity chlorinated paraffin. Heavy liquid paraffin and high-quality wax enter a multistage chlorination device sequentially through a settling tank and a raw material kettle; a chlorine gas device introduces chlorine gas to the multistage chlorination device; chlorinated paraffin prepared by the multistage chlorination device enters a finished product refining device; the finished product refining device is provided with an inert gas blowing device; tail gas generated by the multistage chlorination device enters a demister sequentially through a separation device, the raw material kettle and a multistage cryogenic device; the multistage chlorination device comprises a plurality of chlorination reactors connected in series; an ultraviolet lamp is arranged in each chlorination reactor; and the multistage cryogenic device comprises a plurality of coolers connected in series. The system and process disclosed by the invention can avoid hidden dangers caused by the original technology to production and safety.

Description

technical field [0001] The invention relates to a system and process for producing high-viscosity chlorinated paraffin, in particular to raw materials for high-viscosity chlorinated paraffin production and control of safe production process. Background technique [0002] The raw material for producing high-viscosity chlorinated paraffin is coal-based wax oil, in which heavy liquid paraffin and light liquid paraffin are mixed in a ratio of about 3:1. Because the alkane carbon chain of light liquid paraffin is generally C9-C13, and because the flash point of short-chain wax oil is low, it is difficult to control the production conditions during the reaction process with chlorine gas, and it is easy to cause explosion accidents; secondly, in the production process In a medium-high temperature environment, light liquid paraffin easily enters the subsequent tail gas treatment system along with hydrogen chloride, and light liquid paraffin is not easy to be condensed and removed, w...

AI Technical Summary

Problems solved by technology

Because the alkane carbon chain of light liquid paraffin is generally C9-C13, and because the flash point of short-chain wax oil is low, it is difficult to control the production conditions during the reaction process with chlorine gas, and it is easy to cause explosion accidents; secondly, in the production process In a medium-high temperature environment, light liquid paraffin easily enters the subsequent tail gas treatment system along with hydrogen chloride, and light liquid paraffin is not easy to be condensed and removed, which makes the quality of tail gas HCl poor, affecting the quality of hydrochloric acid and downstream products, such as: resulting in chlorosulfonic acid products The color is red; the wax oil entrained in the hydrochloric acid will cause combustion and explosion under certain reaction conditions and cause a great safety accident

Moreover, according to the current international situation, because light liquid paraffin is difficult to handle, it has brought certain harm to safety, environmental protection and human health. The country no longer advocates the use of light liquid paraffin, and North America no longer uses light liquid paraffin.

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