Production method of terpene resin

Abstract

A method for producing terpine resin has the steps follows: turpentine oil, toluene, catalyst aluminium chloride have polymerization in the wash the mixed outcome with hot water for draining the catalyst and waste out, then distil the outcome, recycle toluene and clear the liquid resin and the material which did not join the reaction in the course of distillation, then the toluene is made. The reactor includes enamel glass and inside cooling device which is steelless pipe groups filled with saturated salt solution of indoor temperature in the polymerization. The invention has friendly reaction, small fluctuating range of temperature, stable operation, productiving being raised by 20%, fewer equipments, low cost fir energy and production good economic benefit.

Description

technical field [0001] The invention relates to a production method of terpene resin. Background technique [0002] Terpene resin is processed from natural turpentine oil, which has good properties such as transparency, non-toxicity, neutrality, electrical insulation, hydrophobicity, non-crystallization, resistance to dilute acids and alkalis, heat resistance, light resistance, aging resistance and strong adhesion. It has good compatibility with various synthetic substances and is easily soluble in aromatic hydrocarbons and vegetable oils. Terpene resin is an excellent tackifier, and its tackifying performance is superior to rosin, rosin modified products and petroleum resins; it is also a modifier for hot-melt materials, and is widely used in rubber, plastics, inks, coatings, adhesives, Pressure-sensitive adhesive, cable, color printing, paint, packaging, anti-rust oil, chewing gum and other industries. The main raw material for the production of terpene resin is turpenti...

AI Technical Summary

Problems solved by technology

3-5% of the effective component is lost, and the energy consumption is large, and a corresponding investment of 1 million yuan needs to be increased; secondly, during polymerization, turpentine and solvent are first dropped into the kettle, and then the catalyst is dropped in batches, and the reaction temperature fluctuates greatly. The operation of the equipment is unstable and the output is small; thirdly, heat transfer oil is used to provide heat during distillation. The investment of the heat transfer oil system is 200,000 yuan, the distillation time is long, and the product color is deep; rectification and washing water heating must use steam boilers; in short , the existing process requires large investment, high energy consumption, only about 70% yield and poor product quality

[0004] After searching the Chinese patent literature database with "terpene" as the subject term, it can be seen that although there are prior patents and applications involving terpene resins, they are all technical solutions for the application or modification of terpene resins, and the related The technology of its own manufacturing process has not yet been discovered

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