Process for removing residual silicon species from...

Details Process for removing residual silicon species from... Process for removing residual silicon species from...

2005-03-15

2005-03-15

Harlan, Robert D. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S333200, C525S344000

Reexamination Certificate

active

06867264

ABSTRACT:
Removing silicon species from hydrocarbon solvents such as cyclohexane. The process comprises contacting the hydrocarbon solvent with sulfuric acid in an amount sufficient to phase separate the silicon species and removing at least 20% by weight of the residual silicon species from the hydrocarbon solvent. The hydrocarbon solvent may be a polymerization solvent containing residual silicon species, and more than 80% by weight of the silicon species can be removed.

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