Polymer nanocomposite

Dry Processing for Chemical Applications

Today’s chemical manufacturers are under increasing external pressure to reduce energy consumption and environmental impact; at the same time, they are continually tasked to reduce production costs. Addressing these challenges has traditionally meant high investment and relatively low reward.

By completely re-thinking the chemical manufacturing process, LIST has developed a unique “Dry Processing” approach that radically alters what is possible. In doing so, LIST has effectively reversed the traditional equation of high cost/low yield.

Dry processing enables reactions, including those in the pasty or solid phase, to take place in a highly concentrated environment with little or no solvents which are typically required to reduce viscosity and/or promote heat transfer .  The results are significantly changing the way chemical processors operate.   

  • Minimizes or eliminates the purchase and storage of solvents.
  • Maximizes marketable yield while minimizing the time and cost spent on waste.
  • Reduces or eliminates the cost of waste removal, recovery, treatment and disposal.
  • Increases product quality while decreasing environmental footprint and associated costs.

The LIST technology is being effectively employed for a wide variety of chemical reactions under stoichiometric or nearly stoichiometric conditions. Applications include the drying of materials exhibiting a variety of consistencies and flow characteristics, including materials considered “too difficult” for conventional equipment.

By reducing and often totally eliminating the need for solvents, LIST is enabling manufacturers to generate higher process efficiency and material savings while making the best use of their raw materials.

Unique Characteristics of LIST Kneader Reactor Technology:

  • Simultaneous multi-phase processing, in a single unit
  • Excellent performance in wet, pasty, and viscous phases.
  • Batch or continuous operation with a wide choice of residence times, and narrow residence time distribution
  • Robust construction enables high viscosity processing
  • Maximum, high-efficiency yield per unit volume 
  • Large heat exchange surface areas increase temperature control
  • Effective vapor disengagement prevents carry-over
  • Excellent self-cleaning design promotes rapid grade changes