Environmental protection plasticizer DOTP continuous implementation process new breakthrough

Environmental protection plasticizer DOTP continuous implementation process new breakthroughs in the environmental protection plasticizer DOTP continuous implementation process new breakthroughs in

on August 15, the reporter understands from the Chinese academy of forestry forest chemical industry research institute, which bear the environment-friendly plasticizers continuous production key technology development projects through the achievements appraisal of environmental science institute of jiangsu province. By ping ouyang academicians and kay Chen yong academician of Chinese Academy of Engineering, such as the nanjing university of technology professor Qiao Xu composed of experts believe that the project overall technology has reached the international advanced level, in which two diisooctyl terephthalate ( DOTP) Continuous production technology reached the international leading level. Using this technology can reduce energy consumption per unit product of more than 20%, shorten the production time by more than 10%.

expert opinion, according to the results of such as grease, terephthalic acid as raw materials, from the technological conditions of the existing scientific research personnel and invented the plasma fluidized pretreatment and compound catalytic technology, innovative research and development of plasticizer migration has been reactive plasticizer, high flash point epoxy dimer fatty acid methyl ester plasticizer such as environmental protection products, pioneering a new environmental friendly plasticizer DOTP continuous production process, solve the intermittent method problem such as high energy consumption of the production process, quality is not stable. Remarkable economic and environmental benefits, the achievements of environmental protection plasticizer has good demonstration and promotion of industrial development role.

according to introducing, this new type of fluidized bed continuous synthesis of DOTP process, raw material after slurrying first reaction, reaction, short time, low energy consumption, and can realize continuous production. In the process of continuous preparation of devices, including the reaction kettle, followed by slurry tank, feed pump, series, such as reactor, reaction kettle and circulating pump closed loop, reaction kettle, oil-water separator, octanol pot up, the reflux pump and heater in a closed loop, the material through the loop in the reaction kettle stirring evenly mixed, and reducing energy consumption. Reaction initial stage, the pressure is not higher than 0. 3 mpa, is advantageous to the reaction system as soon as possible into the main reaction stage, the optimal reaction temperature quickly, improve the reaction rate; Reaction late negative pressure make shift to positive direction, increasing the flow of isooctyl alcohol back and dehydration rate to improve the reaction rate.

it is understood that by using this technology, the project unit has been built for yearly produces 10000 tons of environment-friendly plasticizers continuous production line, the demonstration implements DOTP continuous production, reduce energy consumption per unit product of more than 20%, shorten the production time by more than 10%. Output of environmental friendly plasticizer DOTP products meet industry standards and passed the SGS certification, in jiangsu up and cable group, Jiang Sudong peak cable co. , LTD. , after waiting for enterprise applications, the effect is good. In addition, the project also 53 academic papers published articles, including SCI article 29; National authorized patent 9 pieces of 8 invention patents.

as the public's health is becoming more and more attention, more and more countries of phthalate plasticizers ban. DOTP is a kind of new environmental protection plasticizer with excellent properties can be widely used in various fields, especially the heat resistance of cable. And the raw material of DOTP terephthalic acid can be extracted from waste water bottles and other waste polyester, can reduce the production cost, reduce the pollution of the environment, recycling. Conversion table packaging printing knowledge