Polyethylene terephthalate (PET) production process

In the process of synthesis of polyethylene terephthalate glycol concentration measurement

Polyethylene terephthalate (PET) plastics used in the production of fiber and yarn, engineering plastics, film and packaging film, beverage and food packaging.

PET by monomer purified terephthalic acid (PTA) and ethylene glycol (EG) under the effect of catalyst reaction.Reaction process of excess ethylene glycol (EG) and other reaction products, such as propylene glycol (PG) and triethylene glycol (TEG), can then be recovery and recycling.

In order to hold the reactor feed at the required level, to the concentration of ethylene glycol (EG) recycling pipeline to reliable measurement is very important.Ethylene glycol (EG) feed concentration on the quality of the product and the opacity polymer has extremely important influence.

Visa K - Patents^®Online refraction instrument used to measure the concentration of ethylene glycol recycling line.Refractometer measurement helps to adjust the new ethylene glycol (EG) of the feed rate, to ensure that the correct concentration of raw materials into the reactor.

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