Research On Risk Control Of Pilot-scale Chemical Process On Fluoroether Rubber Monomer

Fluoroetherrubbers are fluorinated rubbers which contain the fluoroalkyl ether monomer,curing point monomer,and other special functional monomer in the main chain or side chain of rubbermacromolecules.This new type of rubber not only has better low temperature flexibility compared to thecommonfluorinated rubbers,but also takes into account the excellent physical properties and mechanical processing performance.Perfluoroalkyl vinyl ethers(PAVE)are a type of important monomers of low temperature resistance fluoroether rubbers.In this thesis,the major risk factorsin the chemical pilot process of PAVEwere studied.Furthermore,the risk identification,consequence analysis,and risk assessment of the process node in the fluoroether rubber monomer were undertaken by HAZOP method.A series of innovations have been made in the technological design,including the improvement of solid material feeding methods to chemical equipment,the creative solution to the security risks in the reactor with both heating and cooling functions,and the use of high-temperature nitrogen devices and on-line water analysis system to solve the harsh requirements of the critical equipment for the moisture content.In the study of safety automation control system,the remote monitoringand interlockingof key parameter were realized.The reaction speed was controlled to make sure the stable release and full absorption of toxic gases.Finally,a remote online gas alarm system was set up to achieve the automation in the pilot process of fluorinated rubber monomer PAVE.The successful construction of research line of fluorinated rubber monomer PAVE will solve the technical bottleneck in the field of low temperature resistant fluoroether rubber in our country and effectively promote the development of fluorinated rubber industry.Considering the wide application of fluoroether rubber in the aviation,aerospace,and weapons,the process development and safety studies on specialty fluorinated functional monomershas important practical significance to the improvement of fluorine-containing functional materials and the technical strength of defense industry.