Rectification polymerization inhibitor for aromatic olefin monomer, preparation method and application method thereof

Abstract

The invention relates to a rectification polymerization inhibitor for aromatic olefin monomers, a preparation method and an application method thereof, comprising the following raw materials in parts by weight: 10-40 parts of N-substituted alkyl hydroxylamine compounds, 1 part of nonionic polyacrylamide -20 parts, 100 parts of alkylamide compound. The invention improves the polymerization inhibition efficiency, reduces the polymerization rate of aromatic olefin monomers in the production process, thereby increasing the product yield; at the same time, it gives the polymerization inhibitor the function of wetting, so that the polymerization inhibitor can timely wet and disperse the adhesive while exerting the polymerization inhibition effect. Adhesives attached to the wall of the vessel or on the surface of the filler can only be compounded with a retarder and a real inhibitor in the prior art, the inhibitor is easy to precipitate with temperature changes, the inhibitory effect is poor, and the filler is blocked by the polymer And the defect of the pipeline, it is a multifunctional polymerization inhibitor with low toxicity, good polymerization inhibition effect, not easy to precipitate at low temperature, and can wet and disperse the binder, so as to improve the rectification yield of aromatic olefin monomers, Reduce pollution and eliminate potential safety hazards.

Description

technical field [0001] The invention relates to a rectification polymerization inhibitor for aromatic olefin monomers, a preparation method and an application method thereof. Background technique [0002] Aromatic olefin monomers are chemically active. For example, styrene is an important polymerizable monomer, which can be polymerized by itself or with other monomers, and is widely used in the fields of synthetic polymer materials, coatings, and medicine. Styrene can undergo slow thermally activated polymerization at ambient temperature, and the higher the temperature, the faster the polymerization rate. In order to reduce the polymerization loss during the rectification of styrene and ensure the normal operation of the rectification system, a polymerization inhibitor must be added during the rectification. [0003] Since the industrial production of styrene monomer, people have continuously developed styrene distillation inhibitors to reduce the toxicity of the inhibitor,...

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a kind of rectification polymerization inhibitor of aromatic olefin monomer, preparation method and application method thereof, improve polymerization inhibition efficiency, reduce the polymerization rate of aromatic olefin monomer in the production process, thereby improve product yield; Simultaneously Endow the polymerization inhibitor with the function of wetting, so that the polymerization inhibitor can play the role of polymerization inhibitor and at the same time wet and disperse the adhesives adhering to the wall or the surface of the filler in time, and solve the problem that can only be achieved by retarders and real inhibitors in the prior art. Polymerization agent compounding, polymerization inhibitor is easy to precipitate with temperature changes, poor polymerization inhibition effect, polymer plugging fillers and pipeline defects, it is a kind of product with low toxicity, good polymerization inhibition effect, not easy to precipitate at low temperature, and can moisten A multifunctional polymerization inhibitor for wet dispersion binders to increase the rectification yield of aromatic olefin monomers, reduce pollution and eliminate potential safety hazards

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