Procedure for the removal of catalytic residues based on AlCl.su

Details Procedure for the removal of catalytic residues based on AlCl.su Procedure for the removal of catalytic residues based on AlCl.su

1992-03-23

1993-12-14

Schofer, Joseph L.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528499, C08F 608

Patent

active

052704432

ABSTRACT:
A selective procedure is described for the removal of catalytic residues based on AlCl.sub.3 or its complex compounds deriving from the (co) polymerization of olefinic and diolefinic cuts, allowing the production of almost colourless hydrocarbon resins. This procedure involves putting the polymerized mass in contact with organometallic compounds, treating the resulting mixture with water or aqueous solutions, either acidic or basic, and separating the organic phase, which at this point is without inorganic residues.

REFERENCES:
patent: 3012022 (1961-12-01), Reed et al.
patent: 4369306 (1983-01-01), Toyota et al.

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