A Pilot Study On The Aqueous Phase Method Of The 100L Enamel

In order to explore the mechanism of chloride organic polymer, to establish the dynamic model, rules of aqueous suspension chlorination process, we establish the PLC automatic control and online monitoring of 100L reactor scale pilot test device. This system can realize the functions of the integration of chlorination, removal of acid, neutralization, liquid separation, water washing and air drying, which can greatly improve the efficiency of experiment and reduce labor intensity. Also by aqueous suspension method chlorinated poly organic matter production process similar to the situation, this set of device for the future exploration in other polymer chloride in aqueous suspension development help.The most difficult technical difficulties in the aqueous phase suspension chlorination process are the solution to the problem of the solubility of the product. The solubility of the product is related to the degree of crystallinity and the uniformity of the product. Solubility and product chlorine content is positively related to the chlorine content is easy to control, the same degree of solubility when the solvent is only 1/3, when the chlorine content of more than 50%, the product can be dissolved. Dissolved and selection of raw materials, such as isotacticity and melt index of polypropylene polymerization process, the better material for ring pipe body method of atactic polypropylene, melt index about 30g.The dissolution property of raw material of polypropylene is related to the pretreatment method. The better method is to smash the liquid nitrogen freezing method, and the particle size is controlled by 80-100.The solubility and the uniformity degree of chlorination, improve the uniformity, the use of low temperature chlorination, which can be used in 65-70, UV wavelength selectable 364-494nm, chemical initiation can be at 80-85, BPO, PP, adding amount of 0.6%(WT).The technology adopted two freezing and crushing + two chlorination process, can improve the uniformity of chlorination, but the cost is too high, and the drying of chlorinated polypropylene can be used in the form of air drying and diffuse cyclone drying.