Basell Poliolefine Italia S.r.l.

Basell Poliolefine Italia, S.p.a.

Nicolò Arich De Finetti

Gianni Vitale

Gabriele Mei

Massimo Covezzi

Diego Brita

Pietro Baita

Ofelia Fusco

Anna Fait

Benedetta Gaddi

Giuseppe Penzo

Antonio Mazzucco

Roberta Pica

Maria Di Diego

Daniele Bigiavi

Maria Silvia Tonti

Guiseppe Penzo

Giuseppina Maria Algozzini

Luca Ranzani

A thermo-catalytic process for the depolymerizing waste plastic material and producing a pyrolytic oil, uses two agitated vessel depolymerization reactors, two condensation units, and a char handling section.

Process for the depolymerization of plastic waste material

A solution process for polymerizing one or more &#x3b1;-olefins of formula CH&#x2550;CHR, where R is H or an alkyl radical C, to produce a polyolefin soluble in the reaction medium, the process comprising: a) polymerizing said one or more &#x3b1;-olefins in a solution phase in the presence of a polymerization catalyst and a inert solvent having a vapor pressure lower than 100 kPa at 20&#xb0; C.; b) separating the produced polyolefin from the unreacted monomers and the inert solvent by means of a sequence of at least three volatilization chambers operating at a decreasing pressure, the second devolatilization chamber being operated at a pressure from 0.8 to 5 bar.

Solution polymerization process for preparing polyolefins

Method for continuously removing the unreacted butene-1, and optionally other volatile components, from a polymeric solution obtained by liquid phase (co)polymerization of butene-1, the method comprising the steps of: subjecting the polymeric solution to heating and mixing conditions such that a mixture is formed consisting substantially of: (1) a polybutene melt containing entrapped butene-1 and (2) supercritical gaseous butene-1; subjecting the above mixture to a sequence of devolatilization steps operating at decreasing pressures.

Method for removing volatile components from polymer compositions

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Ferrara, Italy

Nicolò Arich De Finetti