Process for polypropene manufacture

Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By addition of entire unsaturated molecules – e.g.,...

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C07C 202

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active

047773170

ABSTRACT:
Continuous Friedel-Crafts polymerization of propylene based feedstock in a polypropene reactor system to obtain viscous polypropene having a viscosity within the range of about 2 to about 200 centistokes, comprising: (a) continuously injecting water into the feed or the reactor at a monitored and controlled rate and (b) periodically increasing or decreasing the rate of water injection in response to deviations in the molecular weight of the polypropene product from a desired molecular weight.

REFERENCES:
patent: 4528414 (1985-07-01), Long et al.
Olah, Friedel-Crafts and Related Reactions, Interscience Publishers (1963), pp. 88-90 & 207-209.

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