An apparatus and process for the continuous production of styrene-maleimide copolymers
By constructing a continuous reaction system with two feed tanks, four reactors, and a shell-and-tube heat exchanger, the problems of complex equipment configuration and heat accumulation in the existing process were solved, achieving efficient production of styrene-maleimide copolymer, improving product controllability and mixing uniformity, reducing material consumption, and extending the plant's operating time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIAXING HUAWEN CHEM CO LTD
- Filing Date
- 2026-05-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing styrene-maleimide copolymer production processes suffer from cumbersome procedures, high material consumption, and difficulty in balancing product quality and environmental friendliness. In particular, the batch solution process and twin-screw melt imidization process are characterized by complex equipment configuration, heat accumulation, poor mass transfer, and uneven mixing, making them unsuitable for large-scale, high-efficiency production.
A continuous reaction system is constructed using two feed tanks, four reactors, and a shell-and-tube heat exchanger. By stepwise feeding and staged control of the monomer copolymerization ratio, combined with four reactors connected in series, gradient polymerization and stepwise conversion are achieved. The shell-and-tube heat exchanger is used to quickly remove the heat of polymerization reaction, and to stably control the polymerization rate and the uniformity of material mixing.
It has achieved efficient and continuous production of styrene-maleimide copolymer, improved the controllability and mixing uniformity of the polymerization process, reduced the raw material consumption quota, improved the product structure uniformity and environmental friendliness, and has a continuous operating time of more than 10,000 hours.
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Abstract
Citation Information
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