干燥
LIST 捏合反应器是处理不同化学过程中产生的难处理残留物或有价值物料进行干燥的理想选择。典型的干燥过程涉及工艺上要求较高的相变，从粘稠状到糊状、结壳状，直至固态。这些过程不仅受热传递的影响，还受扩散限制。
LIST 捏合反应器采用高扭矩设计，确保最大程度的自清洁，最小化死区和产品沉积。
凭借独特的技术能力，能够应对干燥过程的所有阶段，单个 LIST 捏合反应器可帮助客户显著降低投资和运营成本，同时提供一致且高质量的最终产品。
特性
示例
甲苯二异氰酸酯（TDI）残留物处理
极为坚固的连续式LIST TDI回收工艺可轻松应对波动的残留物成分和流量变化。蒸馏残留物中可能含有30%至70%重量比的甲苯二异氰酸酯（TDI），这是聚氨酯的原料之一。
从残留物中蒸发TDI具有挑战性。混合物易产生泡沫，当TDI含量下降时，剩余物料会先变得粘稠，随后呈糊状。最终，当游离TDI含量降至0.5-1%重量比时，残留物会固化为坚硬、自由流动的颗粒。蒸发并冷凝后的粗TDI被回送至上游工艺，从而提升整套装置的整体经济性。
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Bei der Aufbereitung von Industrierückständen, Schlämmen und Sonderabfällen müssen nicht nur gesetzliche Vorschriften beachtet werden. Sinnvoll ist es, die Aufbereitung am Entstehungsort vorzunehmen; darüber hinaus sollte eine maximale Rückgewinnung an Wertstoffen sowie ein Minimum an unvermeidbaren Reststoffen gewährleistet sein.
Language: German / Year: 2001
Grossvolumige Knettrockner ermöglichen es, Prozessschritte zu kombinieren und damit Vorteile hinsichtlich Wirtschaftlichkeit und Produktqualität zu erzielen, speziell dann, wenn zähpastöse oder krustende Zustände zu bewältigen sind.
Language: German / Year: 1998
Trocknen und Reagieren kombiniert – Die Verbesserung von Produktionsabläufen konzentriert sich heute weniger auf die Optimierung einzelner Verfahrensschritte, als vielmehr auf eine Vereinfachung des Verfahrensablaufs als Ganzes.
Language: German / Year: 1998
The increase in the amounts of paint and lacquer sludges from industrial processes combined with more stringent legislation, reduction in available land-fills, escalating costs, and the increasing pressure for residues to be processed at the point of origin has created a tremendous incentive for the development of new and economic concepts and techniques for their minimisation.
Language: English / Year: 2005
In the mid seventies, LIST developed and industrialized a continuous process for the recovery of toluene diisocyanate (further TDI) from distillation residue. The process, which will be highlighted in this document, ensures the Maximum recovery of TDI. The final residue is transformed into a non-toxic (neutral) and easy to handle solid/granular material.
Language: English / Year: 2000
This paper elaborates on the constraints of the drying process of industrial sludges and distillation residues, such as, closed design and product containment, processing of sticky, crusting, or fouling intermediate phases, versatility, low energy demand, and single step drying. It then presents the mechanical, thermal and processing features as well as the operating principles of specialised single-shaft, DISCOTHERM B CONTI/BATCH, and twin-shaft, ORP (Opposite-Rotating Processor) CONTI, kneadersdryers.
Language: English / Year: 1998
This lecture concisely reviews the development and evolution of specialised contact kneaders-dryers, presents the field of their application, defines the selection criteria, describes a basic design procedure, and closes with a list of parameters, that helps one to decide between the implementation of a batch or a continuous operating dryer.
Language: English / Year: 1998
Optimizing the recovery of residues in the production of polyurethane: learn how we process hazardous and toxic distillation residues and recover the valuable TDI monomer.
Language: English / Year: 2019
Consistent with the diversity of chemical-process-industries materials that undergo drying, a wide variety of contact dryers have been brought to the marketplace. However, there is a common set of principles for their process design, and for specifying them.
Language: English / Year: 2003
Over time, different types of reacotrs have been developed in order to improve the stability of the polymerization process. This article Reviews those reactors designed for heterogeneous and homogeneous polymerization. It then explorres the production of solid polymer granules directly in a kneader reactor under evaporative cooling, which is seen as an efficient and reliable polymerization Technology.
Language: English / Year: 2001
