工艺强化
日益增长的需求促使流程工业实施工艺强化、推行清洁工艺并持续优化。环境问题迫使运营商寻找减少原材料和能源消耗、消除有毒物质以及降低排放和废料的方法。
LIST 捏合反应器技术在运营商实现这一目标中发挥着关键作用。我们在化学、工艺和机械工程领域的专业知识，结合我们在工业应用实施中积累的深厚经验，为开发创新且经济的新工艺提供了独特的工具包。
LIST 能够在高浓度相中（使用少量或不使用溶剂）进行工艺处理的能力，帮助客户应对日益增长的需求，同时降低成本。借助 LIST，不仅可以降低投资和运营成本，还能提高产品质量和工艺安全性。
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The bulk free radical polymerization of methyl methacrylate (MMA) or the bulk free radical copolymerization of MMA based monomer recipes face a gel effect (Trommsdorff’s effect) and exothermicity. The kneader reactor offers a perfect combination of surface renewal and evaporative cooling to control temperature at high conversion (85 to 95%).
Language: English / Year: 2006
A new type of kneader reactor is proposed for the continuous radical (co-) polymerisation without solvent, based on the proven design of mature (kneader-) dryer technology. The reactor has been developed to satisfy all major aspects required for (co-) polymerisation while maintaining the safety and reliability of the previous mechanical design. The new kneader reactor offers a perfect combination of surface renewal and evaporative cooling to control temperature to high conversion (85 to 95%), even for bulk systems that have a strong gel effect (Trommsdorff’s effect) and high exothermicity.
Language: English / Year: 2006
A review of the existing polymerisation processes is proposed, with particular attention to the control of viscosity and heat removal. Up to the present time, different types of reactor have been developed in order to improve the stability of the polymerisation process. A review of these reactors is presented for the heterogeneous and homogeneous polymerisations. The production of solid polymer granules directly in a kneader reactor under evaporative cooling is seen as an efficient and reliable polymerisation technology.
Language: English / Year: 2001
Various types of reactor have been developed to date for improving the stability of the polymerisation process. This review describes a few examples of heterogeneous and homogeneous polymerisation, focusing particularly on viscosity control and heat removal. The production of solid polymer granules directly in a kneader-reactor with evaporative cooling is one efficient and reliable polymerisation technology.
Language: English / Year: 2003
Sie suchen ein lösungsmittelfreies, sicheres, umweltfreundliches und energieeffizientes Herstellungsverfahren, das neue Produkttypen mit neuen Qualitätsmerkmalen hervorbringt? Eine neue Technologie macht’s möglich.
Language: German / Year: 2009
Mit lösemittelfreier Prozessführung, dem sogenannten Dry Processing, lassen sich zwei entscheidende Ziele erreichen: umweltfreundliche Prozesse und eine deutliche Senkung der Investitions- und Betriebskosten. Die Schweizer Firma List konzentriert sich dabei nicht auf einzelne Verfahrensschritte, sondern auf den Prozess als Einheit, um eine ganzheitliche verfahrenstechnische und wirtschaftliche Optimierung zu erreichen.
Language: German / Year: 2009
Batch trials were performed on a kneader reactor where a bulk co-polymerization was carried out. Polymerization conversion, viscosity build, reaction kinetics, and heat transfer calculations were performed using the experimental data from the batch trials. A continuous process was proposed for this bulk copolymerization and the models and results from the batch trials were used in designing the continuous process. Predictions of the continuous process using the batch trial data are compared to the actual continuous process, with a focus on polymer conversion, heat transfer, and torque prediction.
Language: English / Year: 2007
Converting the polymer industry to solvent-free polymerisation processes and avoiding unnecessary recirculation decreases energy consumption and reduces waste production. This can be achieved with the horizontal large-volume Kneader Reactor with superior mixing and homogenisation performance. The casing, shafts and mixing elements are indirectly heated by heat transfer fluids and dynamically self-cleaning.
Language: English / Year: 2012
Are you looking for a solvent-free, safe, eco-friendly and energy-efficient way of producing new types of products with new levels of quality? New technology is available to help you do exactly that.
Language: English / Year: 2009
