Generic flow diagram showing the traditional suspension slurry process

The individual suspension PP processes of various manufacturers differ with respect to process conditions and equipment employed. In modem PP suspension processes the polymerisation of homopolymers and random copolymers takes place in liquid propylene (bulk polymerisation). The polymerisation can be continued in one or several gas phase reactors, especially when impact copolymer is produced. Examples of these types of processes are  

These processes will be described in more detail in the following sections. 

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Figure 3.13 Generic flow diagram showing the traditional suspension ( slurry ) process...

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