Synthetic process of alkene monomer

Abstract

The invention discloses a synthetic process of alkene monomers. The synthetic process of alkene monomers comprises the following steps: dissolving raw materials in a solvent, well mixing, reacting to obtain a reaction product mixture, performing reduced-pressure distillation and washing, performing separation and drying to obtain the product. The invention smoothly synthesizes the product, has a high synthetic yield, and reduced production cost; the synthesized alkene monomers can be used to synthesize new polymer scale inhibitors with excellent anti-scaling performance for barium and strontium scale by way of homopolymerization or copolymerization.

Description

technical field [0001] The invention relates to a synthesis process, in particular to a synthesis process of vinyl monomers. Background technique [0002] Formation water is produced during oil extraction, and Ba 2+ 、Sr 2+ , SO 4 2- Anions and cations exist in different formation water and injected water, when Ba 2+ 、Sr 2+ , SO 4 2- After mixing the two water phases, barium sulfate and strontium sulfate scales are easily produced, which block the ground pipelines and rock pores, seriously affecting crude oil production. Because barium and strontium scales are not easy to be dissolved by common acids, once they are formed, they are difficult to remove. Oilfield sites usually use anti-scaling agents to prevent the formation of barium and strontium scales. [0003] The early application of antiscaling agent can be traced back to the 1930s. At that time, the antiscaling agent used was mostly natural products (such as lignin and tannin, etc.), which were not stable in com...

AI Technical Summary

Problems solved by technology

Amino polycarboxylates have large chelation stability constants and can be used at higher temperatures, but they are used in large quantities and cost high; organic polyphosphonic acids have no anti-scaling effect on barium sulfate and strontium sulfate; most of them use organic polymers for anti-scaling. Scale agent, mostly use monomers to copolymerize with maleic anhydride and acrylic acid in order to improve the anti-fouling rate, but because the polymer structure is not fundamentally changed, the expected anti-fouling effect cannot be achieved