Executes 3 major projects in India
Polytex Chemical Engineering Ltd., a Chinese company, provides complete plant solutions for chemical polymer fibre equipment, 
polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyamide 6 (PA 6), PA 66, PLA and PBS lines, solid state poly condensation line, spinning and PSF production line, dye chemical devices, etc.
Polytex has successfully set up many projects and provided technical services to chemical and man-made fibre manufacturers in China and other parts of the world, including India, which is one of the world’s most promising chemical and manmade fibre markets. The company has the ability to build PET continuous polymerization plants with an annual capacity of 100 to 800 TPD or 36,000 to 290,000 metric tons. The process includes saving energy and water through recycling, reduction of gas emission and high quality melt process.
The Chinese manufacturer has made great progress in modification of the PET technology and in carrying out PETG polyester plant and water soluble continuous polyester projects. In the field of PBT, Polytex has successfully implemented 100,000 tons per year and more than 20 lines of middle-sized recycled polyester direct spinning.
Technical know-how
The purified terephthalic acid (PTA) chain transportation system designed by Polytex has run successfully in many CP lines. Recovery heat is used to improve temperature in the paste preparation system. Primary and secondary HTM systems can be switched and used together in esterification reaction. Heat recovery of vapour in process tower is used for the chiller system. Special circulating water system and air cooler are used in the project which reduce power and water consumption during production.
Polytex is the only one engineering company in the world which can help manufacturers modify a batch polymerization plant into a continuous polymerization unit without discarding any equipment. The company has successfully modified three more lines, the capacity of which has increased from 30 TPD batch-poly plant to 150 TPD CP line.
On the other hand, Polytex can help manufacturers build a three reactor continuous polymerization production facility from making PBT from PTA (pure terephthalic acid) and BDO (butanediol). The production line can have a capacity of 30 to 450 metric tons per day. Currently, Polytex is contracting to build 400 tons per day PBT line. The advantages of Polytex’s PBT polymerization solutions include energy saving and high quality production.
Recycled polyester process
Polytex also provides solutions relating to sustainability and recycling. It has independent technologies and patents for recycling 
polyester and can build a recycling polyester production facility with a daily capacity of 20 to 200 metric tons. The company has a patent for recycling polyester for melt direct spinning pre-oriented yarn (POY), fully drawn yarn (FDY) or polyester staple fibre (PSF) and drawing films. The materials which are used for recycling include PET bottle, waste polyester filaments and staple fibres. It can also modify an existent chips spinning plant into a recycling polyester continuous polymerization plant.
Indian customers
India is a very important market for Polytex, contributing to 30 per cent of its total turnover. The company has successfully implemented continuous PET engineering projects for three major customers in India since 2009. At Jindal Industries, it executed a 60,000 ton per year film grade continuous polyester plant, which is the first of its kind. For Nakoda Industries, it implemented a 1,30,000 ton per year yarn grade continuous polyester plant, first for POY and FDY manufacturing in the same plant in the Indian market. As for Raj Rayon, a 1,50,000 tons per year yarn grade CP plant was implemented, the first of its kind, from contract execution to successful start-up within 11 months.
Since India is a potential market with a large population, there is enough scope for the polyester industry to develop rapidly. Polytex promises to deliver its best performance and offer quick service to the industry in India.
R&D Centre
The Chinese company has also developed more solutions for the production of advanced materials in co-operation with over 20 polymer research centres all over the world. It has also invested and constructed an engineering R&D base (70,000 m3 plant specializing in research and development of new type polymerization line and fibre line) in China to meet the special requirements of its customers.
The company has a huge demand for its high performance solutions in the Chinese market which contributes to 60 per cent of its business. The company’s major international customers include Henan Kaixiang Chemical Company (120,000 tons per year), the Jiangsu Jianghe Group and the Henan Jinda Group.