DCP rectification process flow

Abstract

The invention discloses a DCP rectification process flow which comprises the following steps: step I: performing benzyl alcohol rectification; step II: condensing and cooling a gas phase material at the top of a tower through primary cooling and secondary cooling in a benzyl alcohol tower, and putting the material into a middle tank at the top of the benzyl alcohol tower; step III: recycling isopropyl benzene: washing 'concentrated recycled isopropyl benzene' with alkali; step IV: rectifying and recycling the 'recycled isopropyl benzene'; step V: condensing and cooling a vapor phase at the topof the tower through primary cooling and secondary cooling in a recycled isopropyl benzene tower in sequence, and putting the material into a middle tank at the top of the recycled isopropyl benzenetower; step VI: recycling alcohol; step VII: controlling residues by a residue position of an alcohol tower to enter a waste liquid geosynclines for standing still for layering, vacuumizing an oil layer, pulling the vacuumized oil layer into a main waste liquid tank, loading the waste liquid into a tanker for selling; step VIII: condensing and cooling the vapor phase at the top of the tower through primary cooling, secondary cooling and third cooling in the alcohol tower, and putting the vapor phase into the middle tank at the top of the alcohol tower. According to the DCP rectification process flow, the benzyl alcohol tower, the recycled isopropyl benzene tower and the alcohol tower are mainly adopted; by reasonable process steps, the separation efficiency is greatly improved, the operation elasticity is relatively high, and the product yield is greatly increased.

Description

technical field [0001] The invention relates to the technical field of DCP rectification, in particular to a process flow of DCP rectification. Background technique [0002] DCP cross-linking agent, dicumyl peroxide, white diamond-shaped crystals. The melting point is 41-42°C, and the relative density (20°C / 4°C) is 1.082. The sublimation temperature is 100°C (26.7Pa), the decomposition temperature is 120-125°C (rapidly decomposed), the refractive index is 1.5360, the flash point is 133°C, and the ignition point is 218°C. It is stable at room temperature and gradually turns yellowish when exposed to light. It is insoluble in water. Soluble in ethanol, ether, acetic acid, benzene and petroleum ether, the product has an oral LD ​​50 of 3500-4000mg / kg to mice, and is slightly irritating to human skin. The content of active oxygen is 5.92% (purity: 100%), 5.62% ( Purity 95%), soluble in benzene, half-life: 171°C: 1min; 117°C: 10h; 101°C: 100h, is a strong oxidant, [0003] In ...

AI Technical Summary

Problems solved by technology

[0003] In the DCP rectification process, there are characteristics such as low separation efficiency, small operating flexibility, and low product yield. Therefore, an improved technology is urgently needed to solve this problem existing in the prior art