公开(公告)号：US20220332664A1

公开(公告)日：2022-10-20

申请号：US17639141

申请日：2020-08-21

Applicant: VERSALIS S.P.A.

Inventor： Roberto BUZZONI ,  Giovanni Antonio FOIS

IPC: C07C2/86 ,  C07C7/163

Abstract: A process for treating mixtures containing polyalkylaromatic hydrocarbons, intended for transalkylation processes, includes a mild reduction with hydrogen in the presence of a suitable hydrogenation catalyst. The process also relates to a transalkylation process of polyalkylaromatic hydrocarbons having the treatment.

公开(公告)号：US20220177500A1

公开(公告)日：2022-06-09

申请号：US17556199

申请日：2021-12-20

Applicant: Versalis S.p.A.

Inventor： Giovanni RICCI ,  Giuseppe LEONE ,  Anna SOMMAZZI ,  Alessandra FORNI ,  Francesco MASI

IPC: C07F9/50 ,  C07F9/46 ,  C08F136/06 ,  C08F4/68 ,  C08F4/76 ,  C08F10/06 ,  C08F10/08 ,  C08F4/20 ,  C08F10/00

Abstract: Vanadium phosphinic complex having general formula (I) or (II): V(X)3[P(R1)n(R2)3-n]2  (I) V(X)3[(R3)2P(R4)P(R3)2]  (II) wherein: X represents an anion selected from halogens; or is selected from the following groups: thiocyanate, isocyanate, sulfate, acid sulfate, phosphate, acid phosphate, carboxylate, dicarboxylate; R1, identical or different among them, represent a hydrogen atom, or an allyl group (CH2═CH—CH2—); or are selected from alkyl groups C1-C20, linear or branched, optionally halogenated, optionally substituted cycloalkyl groups; n is an integer ranging from 0 to 3; R2, identical or different among them, are selected from optionally substituted aryl groups; R3, identical or different among them, represent a hydrogen atom, or an allyl group (CH2═CH—CH2—); or are selected from alkyl groups C1-C20, linear or branched, optionally halogenated, optionally substituted cycloalkyl groups, optionally substituted aryl groups; R4 represents a group —NR5 wherein R5 represents a hydrogen atom, or is selected from C1-C20 alkyl groups, linear or branched; or R4 represents an alkylene group —(CH2)p- wherein p represents an integer ranging from 1 to 5; provided that in the general formula (I), in case n is equal to 1 and R1 is methyl, R2 is different from phenyl. Said phosphinic vanadium complex having general formula (I) or (II) can be advantageously used in a catalytic system for the (co)polymerization of conjugated dienes.

公开(公告)号：US11326192B2

公开(公告)日：2022-05-10

申请号：US16631188

申请日：2018-07-17

Applicant: Versalis S.p.A.

Inventor： Valentina Rodighiero ,  Giuliana Franzosi ,  Concetta Compagno ,  Claudia Capusoni

IPC: C12R1/645 ,  C12N1/14 ,  C12P7/64

Abstract: The present invention relates to a variant of oleaginous yeast of the species Trichosporon oleaginosus characterized by mutations affecting cell wall synthesis that change the morphology thereof with respect to the wild-type strain of the same species. In particular, thanks to said mutations, cell aggregates are formed which, with respect to the wild-type strain of the same species, lower the viscosity of the culture broth, are more easily separable therefrom and thus make their recovery easier. Said variant of oleaginous yeast of the species Trichosporon oleaginosus is also characterized by yields of oleaginous cellular biomass and intracellular accumulation of lipids that are similar or even higher than those of the wild-type strain. Further, the present invention relates to a process for the production of lipids through said variant of oleaginous yeast of the species Trichosporon oleaginosus. The lipids thus obtained can be advantageously used as synthesis intermediates, particularly in the so-called “green chemistry” sector, or in the production of biofuels such as, for example, “biodiesel” or “green diesel”, which can be used as such, or mixed with other fuels for transportation.

公开(公告)号：US11242413B2

公开(公告)日：2022-02-08

申请号：US16321849

申请日：2017-08-02

Applicant: VERSALIS S.P.A.

Inventor： Marianna Suar

IPC: C08F2/01 ,  B01J19/00 ,  B01J19/06 ,  B01J19/24 ,  C08F2/04 ,  C08F2/38 ,  C08F2/44

Abstract: A method for the control of a plant (10) for the production in continuous of a polymer, wherein the plant (10) comprises at least one reactor (11) fed with at least a first monomer and a second monomer, a first stripper (12), a second stripper (17), a third stripper (18), at least one recycling vat (13) of the fine products, measurement equipment (14) and a control system comprising distributed control devices (15) controllable by at least one electronic processing and control unit (16) based on a plurality of control variables, the control method comprising the following steps: collecting data comprising recipe parameters, laboratory analysis results and predefined coefficients stored in a database (40); collecting the data measured by the measurement equipment (14); determining, by means of a first calculation module (20) a production potentiality value of the at least one reactor (11); determining, by means of a second calculation module (21) the polymer concentration in the at least one reactor (11), in the first stripper (12) and in the at least one recycling vat of the fine products (13); determining, by means of a third calculation module (22) the flow-rate of oil for feeding the second stripper (17); determining, by means of a fourth calculation module (23), the flow-rate of the chain terminator (TERM) for feeding the at least one reactor (11), controlling the plant (10) on the basis of the plurality of control variables.

公开(公告)号：US11208544B2

公开(公告)日：2021-12-28

申请号：US16332863

申请日：2017-09-27

Applicant: Versalis S.P.A.

Inventor： Andrea Castiglioni ,  Francesco Scavello ,  Daniele Balducci ,  Paolo Mariani

IPC: C08L23/06 ,  C08L27/12 ,  C08L23/08 ,  C08F210/16 ,  C08K3/013 ,  C08K3/34 ,  C08K3/04 ,  C08K3/26 ,  C08K3/38

Abstract: A polymer composition comprising: (a) from 50% by volume to 99% by volume, preferably from 70% by volume to 95% by volume, of at least one homopolymer or copolymer of ethylene; (b) from 1% by volume to 50% by volume, preferably from 5% by volume to 30% by volume, of at least two fillers having different thermal conductivity; (c) from 100 ppm to 4000 ppm, preferably from 200 ppm to 3500 ppm of at least one fluoropolymer; the sum of (a)+(b) being 100. Said polymer composition can be used as a phase change material (PCM), in particular for thermal energy storage (TES), more in particular for the storage of solar energy.

公开(公告)号：US11174498B2

公开(公告)日：2021-11-16

申请号：US16095996

申请日：2017-05-02

Applicant: Versalis S.p.A.

Inventor： Daniele Riva ,  Dario Giordano

IPC: C12P19/04 ,  C13K1/02 ,  D21C1/02 ,  D21C11/00 ,  C12P7/10 ,  D21C5/00 ,  C12P19/02 ,  C13K13/00

Abstract: It is disclosed a process for producing a bio-product from a ligno-cellulosic biomass, wherein the ligno-cellulosic biomass, a gas and steam are introduced in a pressurized reactor operated in a continuous manner at conditions to have a vapor head space. In the pressurized reactor, the vapor head space is maintained at a vapor head space temperature and at a pressure which is at least 1 bar greater than a pure steam equilibrium pressure at the vapor head space temperature. The ligno-cellulosic biomass is then refined by rapidly releasing the pressure while discharging the ligno-cellulosic biomass from the pressurized reactor assembly to create a pre-treated ligno-cellulosic biomass, which is then hydrolyzed and converted to the bio-product. Preferably, at least a portion of the gas is air entrapped in the ligno-cellulosic biomass and it is introduced into the pressurized reactor as part of the ligno-cellulosic biomass. In a preferred embodiment, the lignocellulosic biomass is subjected to a soaking step and an aeration step prior to being introduced into the pressurized reactor, without any xylans separation step.

公开(公告)号：US11155838B2

公开(公告)日：2021-10-26

申请号：US16077602

申请日：2017-02-20

Applicant: Versalis S.p.A.

Inventor： Fabio Sabbatini

IPC: C12P7/06 ,  C12P7/14 ,  C12P7/64

Abstract: It is disclosed a process to produce a fermentation product from a ligno-cellulosic feedstock hydrolyzate slurry which comprises water, water soluble glucose and xylose and water insoluble pretreated ligno-cellulosic feedstock. The process comprises at least two conversion step. A first conversion medium comprising a first portion of the ligno-cellulosic feedstock hydrolyzate slurry and a yeast capable to ferment glucose and xylose is first created, then the yeast is allowed to convert at least 50% of the glucose and less than 20% of the xylose of the first conversion medium to a first propagated yeast and a first portion of the fermentation product in a first conversion step having a first sugar-to-cells conversion ratio in a range of from 5% to 25%. A second conversion medium comprising at least a portion of the first propagated yeast and a second portion of the ligno-cellulosic feedstock hydrolyzate slurry is then created, then the yeast is allowed to convert at least a portion of the water soluble glucose and xylose in the second conversion medium to at least a second propagated yeast and a second portion of the fermentation product in a second conversion step having a second sugar-to-cells conversion ratio which is less than the first sugar-to-cells conversion ratio. Preferably, the first conversion step comprises at least a first phase which is an aerobic phase and a second phase which is an anaerobic phase.

公开(公告)号：US11078437B2

公开(公告)日：2021-08-03

申请号：US16773964

申请日：2020-01-27

Applicant: ENI S.P.A. ,  Versalis S.P.A.

Inventor： Marcello Notari ,  Claudio Cavallo ,  Alberto Roselli ,  Alessandro Casnati ,  Francesco Sansone ,  Alessandro Burlini

IPC: C10M119/02 ,  C08G81/02 ,  C10M159/00 ,  C08C19/02 ,  C10N20/00 ,  C10N30/02 ,  C10N30/00 ,  C10N60/02 ,  C10N70/00

Abstract: Hydrogenated polymers with a radial structure having a core made up of calixarenes of the general formula (I), to the core of which is linked a number P of hydrogenated linear polymer segments selected from: —hydrogenated homopolymers or co-polymers of conjugated dienes; or—hydrogenated co-polymers of said conjugated dienes and monoalkenyl arenes, and—mixtures thereof said formula (I) in which: —R1, R2, R3 and R4 are independently selected from hydrogen; a group containing carbon and hydrogen; a group also containing heteroatoms in addition to carbon and hydrogen; a group also containing silicon in addition to carbon, hydrogen and heteroatoms; —one of the two substituents R5 and R6 is hydrogen, while the other may be hydrogen or alkyl, with a number of carbon atoms between 1 and 6, preferably methyl and ethyl; —n is an integer in the range between 4 and 16.

公开(公告)号：US20210189084A1

公开(公告)日：2021-06-24

申请号：US17267834

申请日：2019-08-12

Applicant: VERSALIS S.P.A.

Inventor： Emilij Soncin ,  Dario Ghidoni ,  Andrea Castiglioni

IPC: C08J9/00 ,  C08J9/14

Abstract: There is an expandable vinyl aromatic polymer composition with improved mechanical and insulating properties that includes: a) 60% to 96% by weight of a vinyl aromatic polymer (a); b) 3% to 10% by weight of an expansion agent (b); and c) 1% to 30% by weight of a vinyl aromatic copolymer (c) containing from 1% to 10% by weight of a rubbery component as a dispersed phase, with the condition that the sum of (a), (b) and (c) is 100% by weight together with the process for its preparation and corresponding use and manufactured goods obtainable from that composition.

公开(公告)号：US10961365B2

公开(公告)日：2021-03-30

申请号：US15996683

申请日：2018-06-04

Applicant: Versalis S.p.A.

Inventor： Antonio Ponticiello ,  Dario Ghidoni ,  Riccardo Felisari

IPC: C08J9/00

Abstract: Expandable vinyl aromatic polymers comprising: a matrix obtained by polymerizing 50-100% by weight of one or more vinyl aromatic monomers and 0-50% by weight of at least one co-polymerizable monomer; 1-10% by weight, calculated with respect to polymer (a), of an expanding agent embedded in the polymeric matrix; 0-25% by weight, calculated with respect to polymer (a), of a filler comprising carbon coke having an average diameter of between 0.5 and 100 μm, with a surface area, measured according to ASTM D-3037/89, ranging from 5 to 200 m2/g; 0.05-10% by weight, calculated with respect to polymer (a), of expanded graphite in particle form, with a particle average diameter (size) ranging from 1 to 30 μm, a surface area, measured according to ASTM D-3037/89, ranging from 5 to 500 m2/g and a density ranging from 1.5 to 5 g/cm3.