公开(公告)号：US20250136887A1

公开(公告)日：2025-05-01

申请号：US18686577

申请日：2022-08-09

Applicant: VERSALIS S.P.A.

Inventor： Nicola VECCHINI ,  Mirco NODARI ,  Armando GALEOTTI ,  Daniele DELLEDONNE

IPC: C10M133/06 ,  C07C227/08 ,  C10M169/04

Abstract: A Method for the synthesis of ω-amino acids or derivatives thereof, includes the following steps synthesis of an ω-oxoester/linear acid by hydroformylation by CO/H2 mixture of at least one monounsaturated acid/ester, the monounsaturated acid/ester preferably resulting from a reaction of metathesis of oils/fats from renewable sources; synthesis of a linear ω-amino acid/ester and/or ω-aminoamide, subjecting the aforementioned ω-oxoester/linear acid to reductive amination; and possible synthesis of a linear ω-amino acid, subjecting the aforementioned linear ω-aminoester and/or ω-aminoamide to hydrolysis.

公开(公告)号：US20250085220A1

公开(公告)日：2025-03-13

申请号：US18725831

申请日：2022-12-27

Applicant: Versalis S.p.A.

Inventor： Riccardo FELISARI ,  Armando GALEOTTI ,  Mirco NODARI ,  Francesco BONACINI ,  Antonio PONTICIELLO

IPC: G01N21/3577 ,  G01N1/44 ,  G01N33/44

Abstract: The present invention is related to the treatment of plastic material to be destined for chemical recycling processes for the valorisation of substantially plastic material otherwise destined for disposal.
In particular, the invention concerns a process for the pyrolysis of substantially plastic material to obtain at least liquid hydrocarbons at 25° C. comprising the following steps: a) feeding to a pyrolysis reactor a substantially plastic material at least partially in the molten state; b) subjecting said substantially plastic material fed to a pyrolysis reactor to at least an analytical measurement “Ax” with in-line mode; c) determining the value of at least one “Px” property of said substantially plastic material by means of said at least one analytical measure “Ax”; d) installing at least one “Ox” parameter of the pyrolysis process based on the value of this at least one “Px” property; characterised by the fact that at least one analytical measurement “Ax” provides or consists of the measurement of the spectrum in reflection of the light of the substantially plastic material.

公开(公告)号：US20230265258A1

公开(公告)日：2023-08-24

申请号：US18011451

申请日：2021-06-16

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

Inventor： Francesco SCAVELLO ,  Nicola VECCHINI ,  Riccardo FELISARI ,  Armando GALEOTTI ,  Daniele BALDUCCI ,  Stefania GUIDETTI ,  Erica MONTANARI

IPC: C08J11/16 ,  C08K3/26

CPC classification number: C08J11/16 ,  C08K3/26 ,  C08J2323/06 ,  C08J2323/12 ,  C08J2325/06 ,  C08J2327/06 ,  C08J2367/02 ,  C08J2377/00 ,  C08K2003/262

Abstract: A plastic composition includes



plastic material free from halogenated components or with a halogen content less than or equal to 0.5% by mass with respect to the plastic material,
oligomers derived from the plastic contained in the plastic material,
halogenated salts, and
hydrocarbon.

公开(公告)号：US20250101311A1

公开(公告)日：2025-03-27

申请号：US18725824

申请日：2022-12-27

Applicant: Versalis S.p.A.

Inventor： Riccardo FELISARI ,  Armando GALEOTTI ,  Mirco NODARI ,  Antonio PONTICIELLO ,  Angelo FERRANDO ,  Fabio ASSANDRI

IPC: C10B53/07 ,  B01J6/00 ,  C08J11/12 ,  C10B57/14

Abstract: This invention relates to the processing of plastics materials for re-use and valorisation in chemical recycling processes for the re-use of substantially plastics materials otherwise destined for disposal.
In particular the invention relates to a process for the pyrolysis of substantially plastics material to obtain at least liquid hydrocarbons that are in the liquid state at 25° C. comprising the following steps: a) feeding the substantially plastics material optionally already in the molten and/or preheated state to a pyrolysis reactor; b) bringing said material in said pyrolysis reactor to a temperature of between 330° C. and 580° C. in the substantial absence of oxygen and at a pressure of between atmospheric pressure and 13 bar (a); c) holding said material in said pyrolysis reactor at a temperature of between 330° C. and 580° C. for a time sufficient to produce at least one effluent in the gaseous state in said pyrolysis reactor; d) adjusting the pressure in said pyrolysis reactor in relation to characteristic parameters defined by the composition of said substantially plastics material and/or characteristic parameters defined by the products of said pyrolysis process, while maintaining said pressure at a value of between atmospheric pressure and 13 bar (a); e) partly or totally condensing said effluent in the gaseous state so as to form at least one fluid comprising liquid hydrocarbons that are in the liquid state at 25° C. which quantitatively is at least 10% by mass with respect to the mass of substantially plastics material fed; f) the process being characterized by the fact that the pressure adjustment of step d) has low latency.

公开(公告)号：US20250059445A1

公开(公告)日：2025-02-20

申请号：US18725830

申请日：2022-12-27

Applicant: Versalis S.p.A.

Inventor： Riccardo FELISARI ,  Armando GALEOTTI ,  Mirco NODARI ,  Francesco BONACINI

IPC: C10B53/07 ,  C10B57/14

Abstract: The present invention relates to the treatment of plastic materials to be used for chemical recycling processes for the enhancement of substantially plastic materials otherwise destined for disposal.
Specifically, the invention relates to a process for the pyrolysis of substantially plastic material to obtain at least hydrocarbons that are liquid at 25° C., comprising the following steps: a) feeding a substantially plastic material to a pyrolysis reactor; b) bringing said material in said pyrolysis reactor to a temperature of between 330° C. and 580° C. in the substantial absence of oxygen and at a pressure of between atmospheric pressure and 13 bara; c) maintaining said material in said pyrolysis reactor for a sufficient amount of time to produce an effluent in the gaseous state; d) partially or fully condensing said effluent in the gaseous state, so as to form at least one fluid comprising hydrocarbons that are liquid at 25° C. and which quantitatively is at least 10% by mass with respect to the mass of substantially plastic material fed; e) carrying out an assessment of at least one property “Px” of the liquid condensed from said effluent in the gaseous state by means of at least one measurement “Ax” of the spectrum in transmission, reflection or transflexion on said condensed liquid; f) adjusting at least one process parameter “Ox” according to said assessment of at least one property “Px”; g) repeating steps e) and f) iteratively so as to keep the said at least one property “Px” substantially constant over time.

公开(公告)号：US20170313633A1

公开(公告)日：2017-11-02

申请号：US15529778

申请日：2015-12-11

Applicant: Versalis S.p.A.

Inventor： Nicola VECCHINI ,  Armando GALEOTTI ,  Andrea PISANO

IPC: C07C1/24 ,  C12P7/18 ,  C07C29/60

CPC classification number: C07C1/24 ,  C07C29/60 ,  C12P7/18 ,  C07C11/167 ,  C07C33/025 ,  C07C33/03

Abstract: Process for the production of 1,3-butadiene comprising: feeding a mixture (a) comprising 1,3-butanediol and water to an evaporator, said water being present in an amount of greater than or equal to 5% by weight, preferably ranging from 10% by weight to 85% by weight, more preferably ranging from 15% by weight to 30% by weight, relative to the total weight of said mixture (a), to obtain: (b) a gaseous stream comprising 1,3-butanediol exiting from the top of said evaporator; and, optionally, (c) a blow-down stream exiting from the bottom of said evaporator; feeding said gaseous stream (b) to a first reactor containing at least one dehydration catalyst to obtain (d) a stream comprising alkenols, water and, optionally, impurities and/or unreacted 1,3-butanediol, exiting from said first reactor; optionally, feeding said stream (d) to a first purification section to obtain: (e) a stream comprising al-kenols, water, and, optionally, impurities; (f) a stream comprising water and, optionally, impurities and/or unreacted, 3-butanediol; and, optionally, (f) a stream comprising impurities; feeding said stream (d) or said stream (e) to a second reactor containing at least one dehydration catalyst to obtain (g) a stream comprising 1,3-butadiene, water and, optionally, impurities and/or unreacted alkenols, exiting from said second reactor; feeding said stream (g) to a second purification section to obtain: (h) a stream comprising pure 1,3-butadiene; (i) a stream comprising water and, optionally, unreacted alkenols; and, optionally, (1) a stream comprising impurities. Said 1,3-butadiene may advantageously be used as a monomer or intermediate in the production of elastomers and (co)polymers.