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  1. HOME
  2. Chemical Mixing Solutions
  3. Polymer Mixing Solutions

Polymer Mixing Solutions

  • Overview

Mixing for Polymerization Reactors

There are many measures that are used to determine the end use quality of polymers including, among others, physical, mechanical and rheological properties. On a chemical level these properties are determined by the molecular weight and the molecular weight distribution of the polymer and, in the case of co-polymers, the distribution of monomers within the polymer molecule itself. Mixing issues that can affect these properties include:

  • Poor dispersion of initiators resulting in a wider molecular weight distribution. This is often encountered when scaling-up a process and is usually addressed by increasing the initiator usage, increasing raw material costs.
  • In emulsion and suspension polymerizations, changes in particle size and particle size distribution can change their process ability in equipment downstream from the reactor such as filters and driers. Again, this is usually addressed by increasing surfactant usage which increases raw material costs.

In both these cases the problem is usually created by not maintaining the critical mixing rate, relative to the reaction rate, on scale-up. PMSL has many years of experience analyzing these issues and providing solutions that can address them.

Another common problem encountered during polymerizations is fouling where product builds up on the walls of the reactor and the blades of the impellers. This reduces the heat transfer capability of the system with the polymer acting as an insulator, reduces the available volume and, if there is significant build-up on the impeller blades, can generate large out-of-balance forces which can cause mechanical problems. If fouling does occur the reactor must be taken out of service for cleaning reducing its utility and increasing operating costs. In severe cases large lumps of the fouling material can fall off the wall onto the impellers causing severe damage requiring replacement of blades and shafts.

Philadelphia Mixing Solutions has developed a mixing system that increases the internal recirculation within the reactor ensuring that the velocity of fluid at the wall is high and can reduce buildup of fouling while ensuring that the mixing conditions required to produce the desired product qualities are maintained.

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    PHILADELPHIA MIXING SOLUTIONS, LTD.

    1221 East Main Street

    Palmyra, PA 17078

    United States

    US +1-717-832-2800

    inquiries@philamixers.com

    MIXING SOLUTIONS LIMITED

    Venture House Bone Lane

    Newbury, Berkshire RG14 5SH

    United Kingdom

    +44 1635 275300

    sales@mixingsolutions.com

    PHILADELPHIA MIXING SOLUTIONS, ASIA PVT. LTD.

    EFC Office Spaces LLP,
    Unit No. 2202 A,2nd Floor,
    Rajiv Gandhi InfoTech Park, Phase1,
    Hinjewadi Pune 411057. India
    +91 22 6241 2008

    contact@philamixers-asia.com

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    • Mixing Course
    • Blog
    • Careers
    • Parts Store
    • Products
      • MIXING
        • Non-Newtonian/High Viscosity
        • Side Entry Mixing System
        • Raptor 4002 Mixing System
        • Static Mixer
      • IMPELLERS
        • Axial Flow Impellers
        • Radial Flow Impellers
        • Low Reynolds Number Impellers
        • Side Entry
        • Aerators
        • Agitator Impeller
      • MIXER DRIVERS/GEARBOXES
        • Raven 3800 Series
        • UniFirst 4000 Series
        • PVE 01/03 Series
        • PVE 12-16
        • BSER Belt Side Entry Drive
        • C Series
      • INDUSTRIAL PORTABLE MIXING SYSTEM
    • Industries
      • OIL & GAS
      • CHEMICAL
        • Polymer
      • PAINTS & COATINGS
      • MINERAL PROCESSING
        • Phos Acid
      • WATER & WASTEWATER
        • Industrial Wastewater
        • Biological Nutrient Removal Process
      • FOOD & BEVERAGE
      • PULP & PAPER
        • Stock Chest Mixing for Pulp and Paper
      • POWER GENERATION
    • Solutions
      • Modelling
        • PIV Modelling
        • CFD Modelling
        • FEA Modelling
      • Impeller Technology
        • Gas Dispersion Impellers
        • Axial Flow Impellers
        • Aerators
        • Mixed Flow Impellers
      • Agitators
        • Reactor Agitators
      • Solid Suspension Mixing
      • Petroleum Product Mixing
      • Non-Newtonian Mixing
      • Paint Manufacturing Mixing
      • Mixing Course
    • Aftermarket Services
      • Field Service
      • Mixer Modernization & Reliability
      • Inspect & Repair
      • Drive Exchange
      • Replacement Drives: Upgrade/Retrofit
      • Parts & Customer Service
      • Technical Support
      • Premier Service Centers
      • Maintenance & Service Program
    • Parts
      • Parts Request
    • About
      • Join the Team
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