Basell Poliolefine Italia S.r.l.

Basell Poliolefine Italia, S.p.a.

Basell Polyolefine Gmbh

Diego Brita

Gianni Collina

Giampiero Morini

Mario Sacchetti

Ofelia Fusco

Simona Guidotti

Benedetta Gaddi

Daniele Evangelisti

Sandor M Nagy

Daniel F White

Tiziano Dall'Occo

Dario Liguori

Christopher D Smith

Shahram Mihan

Gianni Vitale

Xueyong Yang

Gerhardus Meier

Fabrizio Piemontesi

Noel C Hallinan

Gabriele Mei

Pietro Baita

Harilaos Mavridis

Joachim T M Pater

David L Ramage

Sheri E Davis

Anna Fait

Fabiana Fantinel

Antonio Mazzucco

Volker Fraaije

Alessandro Mignogna

Giovanni Baruzzi

Roberta Pica

Jens Wiesecke

Maria Di Diego

Andreas Maus

Lorella Marturano

Paolo Ferrari

Paolo Vincenzi

Silvia Soffritti

Lorella Pedriali

Nicolo Arich De Finetti

Simona Esposito

Piero Gessi

Nicolò Arich De Finetti

Massimo Cenci

Harry Mavridis

Andrea Casalini

Yulenty Deal

Giuseppina Maria Algozzini

Francesco Menichelli

Jochem T Pater

Tiziano Dall'occo

Jochem T M Pater

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 Ziegler-Natta catalyst component precursor made from or containing a mechanical mixture of (a) distinct particles of adducts of formula MgCl(ROH)where R is a C-Calkyl group and n is from 0.2 to 6 having average particle size (P50a) ranging from 5 to 100 μm; and (b) from 0.2 to 5.0% by weight of distinct particles of a solid compound containing more than 50% by weight of Sift units and having average particle size (P50b), wherein the ratio P50b/P50a ranges from 0.4 to 1.5.

Precursors and catalyst components for the polymerization of olefins

Catalytic compositions for depolymerizing polyolefin-based waste material into useful petrochemical products and methods of use are described. The compositions are a composite of at least one zeolite catalyst with one or more co-catalyst(s) that is a solid inorganic material. These composite catalysts, along with heat, are used to both increase the depolymerization reaction rate of the feed streams and suppress poisoning effects of non-polyolefin polymers that may be present. This results in a shorter residence time in the depolymerization unit and more efficient process.

Composite catalyst for polyolefin depolymerization

A process for the preparation of a solid catalyst component made from or containing a Ti compound, a coloring agent and optionally an electron donor on a Mg chloride based support, including step (a), carried out at a temperature ranging from 0 to 150&#xb0; C., wherein (i) a Mg-based compound of formula (MgClX).nLB, wherein m ranges from 0 to 2, n ranges from 0 to 6, X is, independently halogen, R, OR, &#x2014;OCORor O&#x2014;C(O)&#x2014;ORgroup, wherein Ris a C-Chydrocarbon group and LB is a Lewis base, is reacted with (ii) a liquid medium made from or containing a Ti compound having at least a Ti&#x2014;Cl bond in an amount such that the Ti/Mg molar ratio is greater than 3; and an organic coloring agent is present either associated to the Mg-based compound or dispersed in the liquid medium made from or containing the titanium compound.

Zn catalyst components and process for their preparation

Methods of depolymerizing polyolefin-based material into useful petrochemical products using metal oxides and heat are described. The metal oxides improve the depolymerization reaction by decreasing the onset temperature for the depolymerization, which results in a higher depolymerization rate and a shorter residence time in the depolymerization unit, allowing for a predictable depolymerization reaction, and decreasing the branching or aromatic formations in the product.

Polyolefin depolymerization with metal oxides

A method of depolymerizing plastics using a halloysite catalyst is described herein. The method reduces the energy required for the depolymerization process while achieving improved depolymerization results.

Plastic depolymerization using halloysite

A catalyst mixture made from or containing (a) particles of a solid catalyst component comprising Ti, Mg, Cl, and (b) from 0.5 to 5.0% by weight, based upon the total weight of the mixture, of particles of a solid compound having particle size ranging from 0.1 &#x3bc;m to 1 mm containing more than 50% by weight of SiOunits.

Catalyst components for the polymerization of olefins

A process for the preparation of a solid catalyst component for the polymerization of CH&#x2550;CHR olefins, wherein R is hydrogen or hydrocarbyl radical with 1-12 carbon atoms, made from or containing a Ti compound on a Mg chloride based support, including the steps of (a) reacting a Mg based compound with a liquid medium made from or containing a Ti compound, at a temperature ranging from 0 to 150&#xb0; C., thereby yielding solid particles; and (b) suspending the solid particles coming from step (a) in a liquid medium made from or containing hydrocarbons at a temperature ranging from 10 to 100&#xb0; C., wherein step (a) or (b) is carried out in the presence of 0.2 to 20.0% by weight, with respect to the amount of Mg compound, of particles of a solid compound containing more than 50% by weight of SiOunits and having average particle size from 1 to 100 &#x3bc;m.

Process for the preparation of catalyst components for the polymerization of olefins

A Prepolymerized catalyst component for the polymerization of olefins comprising a solid catalyst component which comprises Mg, Ti, and chlorine atoms and an electron donor (ID) said prepolymerized catalyst component being characterized by the fact that:

Prepolymerized catalyst components for the polymerization of olefins

Solid adducts comprising MgCl, ethanol and water characterized in that the amount of ethanol ranges from 50% to less than 57% by weight, the amount of water is ranges from 0.5 to 5% by weight, the ethanol/water weight ratio is lower than 60 and the porosity determined with Hg method due to pores with radius up to 1 &#x3bc;m and expressed in cm/g, is lower than 0.2.

Magnesium dichloride-alcohol adducts and catalyst components obtained therefrom

The present technology relates to a pre-polymerized catalyst component for the polymerization of olefins, characterized by a non-stereospecific solid catalyst component comprising Ti, Mg and a halogen and an amount of a (co)polymer of an alpha-olefin CH&#x2550;CHR, where Ris a C-Chydrocarbon group ranging from 0.1 to 500 g per g of said solid catalyst component. In some embodiments, the (co)polymer is characterized by an isotacticity, expressed in terms isotactic pentads, of higher than 60 molar % and an intrinsic viscosity, measured in tetraline at 135&#xb0; C., of at least 1.0 dL/g.

Pre-polymerized catalyst components for the polymerization of olefins

A solid catalyst component for olefin polymerization, and in particular for the preparation of LLDPE, comprising Mg, Ti, halogen and an electron donor compound (ID) belonging to cyclic ethers having 3-6 carbon atoms, characterized by having the molar ratio Mg/Ti higher than 5, the molar ratio Mg/ID lower than 3, and by a specific X-ray diffraction spectrum.

A porous solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being selected from 1,3-diethers and the other being selected from succinates, characterized by the fact that the molar ratio ID/Ti is from 0.30 to 0.90, where ID is the total molar amount of succinate and 1,3-diether, the molar ratio of the 1,3-diether donor to the succinate donor is higher than, or equal to, 0.60.

A pre-polymerized catalyst component for the polymerization of olefins endowed with high activity and morphological stability comprises a non-stereospecific solid catalyst component containing Ti, Mg and a halogen, and an amount of an ethylene/alpha-olefin block (co)polymer ranging from 0.1 up to 5 g per g of said solid catalyst component, said prepolymerized catalyst component being characterized by a mercury porosity, due to pores having radius up to 1 &#x3bc;m, ranging from 0.15 to 0.5 cm/g and by the fact that at least 55% of said porosity is due to pores having pore radius up to 0.2 &#x3bc;m.

The present invention relates to a slurry process for preparing an ethylene polymer having a melt flow ratio F/P, which is the ratio among the melt index value measured according to ASTM 1238 condition 'F' and the melt index value measured according to ASTM 1238 condition 'P' of equal to or lower than 27, carried out in two or more stages of polymerization at temperatures in the range from 60 to 120&#xb0; C., in which at least two of the said two or more polymerization stages are carried out under different amounts of molecular weight regulator, said process being carried out in the presence of (A) a solid catalyst component comprising Ti, Mg, halogen, having a porosity (P), measured by the mercury method and due to pores with radius equal to, or lower than, 1 &#x3bc;m, of at least 0.3 cm/g and a surface area determined by BET method, of lower than 100 m/g, and being further characterized by the fact that more than 50% of the titanium atoms are in a valence state lower than 4 and (B) of an organoaluminum compound.

Multistage process for the polymerization of ethylene

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Ferrara, Italy

Diego Brita