Method and special device for adding catalyst in polymerization reaction for producing polyterpene resin

Abstract

The invention relates to a method and special device for adding a catalyst in polymerization reaction for producing polyterpene resin. The method is characterized by comprising the following steps of: 1) well preparing the special device for adding the catalyst, firstly closing a discharge butterfly valve, adding the catalyst (aluminum trichloride) required for one reaction process in the polymerization reaction for producing the polyterpene resin into a feed tank of the device for adding the catalyst once, and tightly covering a catalyst feed port of the feed tank; 2) filling nitrogen into the feed tank till the gas pressure in the feed tank achieves 0.05Mpa; and 3) adding turpentine oil into a reaction kettle, then slowly opening the catalyst discharge butterfly valve, and regulating the size of the valve to control the flow rate to achieve 10kg / 20-25min. According to the method disclosed by the invention, the connection from the catalyst feed port of the feed tank to the reaction kettle constitutes a fully closed reaction system, the catalyst which is added in the polymerization reaction is input once and automatically conveyed in a closed device, and the method has the beneficial effects of slow and uniform adding speed, mild material reaction and capability of ensuring safety of the device and safety in operation of staff.

Description

technical field [0001] The invention relates to a method and special equipment for adding a catalyst in the polymerization reaction of terpene resin production, which is suitable for adding catalyst aluminum trichloride in the polymerization reaction of terpene resin production. It belongs to the technical field of chemical production equipment. Background technique [0002] Terpene resin (C 10 h 16 ) n , also known as polyterpene, in industry, toluene or xylene is used as solvent, α-pinene and β-pinene in turpentine or tall oil are used as polymerized monomers, and cationic polymerization is carried out in a reactor at low temperature The reaction obtains a terpene resin solution, the solvent toluene, unpolymerized reaction monomers and low molecular weight polymers are removed by distillation, and a solid terpene resin product is obtained by cooling. [0003] In the prior art, the catalyst is usually added manually in the manual polymerization reaction. Generally, whi...

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Problems solved by technology

[0004] One of the purposes of the present invention is to provide a method for adding a catalyst in the polymerization reaction of terpene resin production in order to overcome the shortcomings of the existing manual catalyst injection that materials are easily washed out, the catalyst is easily exposed to moisture to produce toxic gases, and endanger human health.

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