Patents by Inventor Alessandro Del Seppia
Alessandro Del Seppia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10654945Abstract: The present invention relates to the industrial sector of extracting and processing natural rubber, and other components, from plant material. In particular, the invention relates to a process for extracting latex, resin and rubber from guayule and/or guayule-type plants, which comprises harvest, preservation, mechanical and chemical treatment of the plant parts, which is applicable both in the laboratory and on an industrial scale and is characterised by significantly high yields and high quality of the extracted products.Type: GrantFiled: December 13, 2016Date of Patent: May 19, 2020Assignee: Versalis S.P.A.Inventors: Cecilia Querci, Alessandro Del Seppia, Mirko Oliosi, Tommaso Prando
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Patent number: 10646854Abstract: The present invention relates to a catalytic composition which comprises microspheroidal alumina and an active component containing a mixture comprising Gallium and/or Gallium oxides, Tin and/or Tin oxides, a quantity ranging from 1 ppm to 500 ppm with respect to the total weight of the catalytic composition of platinum and/or platinum oxides, and oxides of alkaline and/or alkaline earth metals.Type: GrantFiled: December 24, 2012Date of Patent: May 12, 2020Assignee: versalis S.p.A.Inventors: Rodolfo Iezzi, Giulio Manzini, Paolo Pollesel, Alessandro Del Seppia
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Patent number: 10525429Abstract: Ammoximation reactor for cyclohexanone oxime production comprising: (a) a reactor vessel provided with a stirrer; (b) an internal filtering system; (c) an internal liquid ammonia evaporation coil; (d) an internal gaseous ammonia toroidal distributor; (e) an external cyclohexanone toroidal distributor; (f) an internal hydrogen peroxide toroidal distributor; (g) an internal cylindrical draft tube; (h) an external cooling jacket. Said ammoximation reactor allows to obtain a better mixing of the components of the ammoximation reaction and to maximize both the heat-transfer coefficients and the mass-transfer coefficients. Moreover, said ammoximation reactor allows to increase the packing time of the catalyst used in the ammoximation reaction on the filtering system (i.e. the plugging phenomena) so as to avoid the necessity of carrying out the backwashings with nitrogen.Type: GrantFiled: April 27, 2012Date of Patent: January 7, 2020Assignee: VERSALIS S.P.A.Inventors: Alessandro Del Seppia, Elena Ghirardo
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Patent number: 10486140Abstract: The present invention relates to a dehydrogenation process starting from reagents selected from single butenes, or mixtures thereof, or mixtures of butenes with butanes, to give 1-3 butadiene using catalytic composition of microspheroidal alumina and an active component containing a mixture comprising Gallium and/or Gallium oxides, Tin and/or Tin oxides, a quantity ranging from 1 ppm to 500 ppm with respect to the total weight of the catalytic composition of platinum and/or platinum oxides, and oxides of alkaline and/or alkaline earth metals.Type: GrantFiled: October 13, 2017Date of Patent: November 26, 2019Assignee: versalis S.p.A.Inventors: Rodolfo Iezzi, Giulio Manzini, Paolo Pollesel, Alessandro Del Seppia
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Publication number: 20180371111Abstract: The present invention relates to the industrial sector of extracting and processing natural rubber, and other components, from plant material. In particular, the invention relates to a process for extracting latex, resin and rubber from guayule and/or guayule-type plants, which comprises harvest, preservation, mechanical and chemical treatment of the plant parts, which is applicable both in the laboratory and on an industrial scale and is characterised by significantly high yields and high quality of the extracted products.Type: ApplicationFiled: December 13, 2016Publication date: December 27, 2018Applicant: Versalis S.P.A.Inventors: Cecilia QUERCI, Alessandro DEL SEPPIA, Mirko OLIOSI, Tommaso PRANDO
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Publication number: 20180043338Abstract: The present invention relates to a dehydrogenation process starting from reagents selected from single butenes, or mixtures thereof, or mixtures of butenes with butanes, to give 1-3 butadiene using catalytic composition of microspheroidal alumina and an active component containing a mixture comprising Gallium and/or Gallium oxides, Tin and/or Tin oxides, a quantity ranging from 1 ppm to 500 ppm with respect to the total weight of the catalytic composition of platinum and/or platinum oxides, and oxides of alkaline and/or alkaline earth metals.Type: ApplicationFiled: October 13, 2017Publication date: February 15, 2018Applicant: versalis S.p.A.Inventors: Rodolfo IEZZI, Giulio MANZINI, Paolo POLLESEL, Alessandro DEL SEPPIA
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Patent number: 9096488Abstract: Process for the alkylation of aromatic hydrocarbons by means of aliphatic alcohols containing from 1 to 8 carbon atoms, which comprises feeding the hydrocarbon and alcohol to the head of a fixed-bed reactor, operating with “trickle flow” regime, containing at least one layer of a catalyst comprising a zeolite selected from medium-pore zeolites and large-pore zeolites.Type: GrantFiled: June 21, 2012Date of Patent: August 4, 2015Assignee: VERSALIS S.P.A.Inventors: Paolo Calaresu, Elena Bencini, Alessandro Casalini, Alessandro Del Seppia, Giovanni Antonio Fois
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Patent number: 9090544Abstract: The present invention relates to a process for the production of 1,3-butadiene which comprises the following phases: a) extracting, by means of extractive distillation, in an extraction section, an end-product containing 1,3-butadiene and a raffinate product, starting from mixtures of saturated and unsaturated compounds having from 2 to 10 carbon atoms in the chain; b) sending the raffinate product to a dehydrogenation section; c) dehydrogenating the raffinate product in the dehydrogenation section in the presence of a dehydrogenation catalyst and an inert product so as to form a reaction effluent containing 1,3-butadiene; d) recirculating the reaction effluent containing 1,3-butadiene directly to the extraction section after separating the incondensable compounds.Type: GrantFiled: December 24, 2012Date of Patent: July 28, 2015Assignee: versalis S.p.A.Inventors: Alessandro Del Seppia, Fabio Assandri, Elena Ghirardo, Carmelo Vella
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Patent number: 9012696Abstract: Process for the alkylation of aromatic hydrocarbons by means of olefins containing from 2 to 8 carbon atoms, which comprises feeding the hydrocarbon, olefin, and possibly water, to the head of a fixed-bed reactor, operating with a “trickle flow” regime, containing at least one layer of a catalyst comprising a medium-or large-pore zeolite.Type: GrantFiled: June 21, 2012Date of Patent: April 21, 2015Assignee: Versalis S.p.AInventors: Paolo Calaresu, Alessandro Del Seppia, Elena Bencini, Giovanni Antonio Fois, Alessandro Casalini
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Publication number: 20150005532Abstract: The present invention relates to a process for the production of 1,3-butadiene which comprises the following phases: a) extracting, by means of extractive distillation, in an extraction section, an end-product containing 1,3-butadiene and a raffinate product, starting from mixtures of saturated and unsaturated compounds having from 2 to 10 carbon atoms in the chain; b) sending the raffinate product to a dehydrogenation section; c) dehydrogenating the raffinate product in the dehydrogenation section in the presence of a dehydrogenation catalyst and an inert product so as to form a reaction effluent containing 1,3-butadiene; d) recirculating the reaction effluent containing 1,3-butadiene directly to the extraction section after separating the incondensable compounds.Type: ApplicationFiled: December 24, 2012Publication date: January 1, 2015Applicant: versalis S.p.A.Inventors: Alessandro Del Seppia, Fabio Assandri, Elena Ghirardo, Carmelo Vella
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Publication number: 20140378731Abstract: The present invention relates to a catalytic composition which comprises microspheroidal alumina and an active component containing a mixture comprising Gallium and/or Gallium oxides, Tin and/or Tin oxides, a quantity ranging from 1 ppm to 500 ppm with respect to the total weight of the catalytic composition of platinum and/or platinum oxides, and oxides of alkaline and/or alkaline earth metals.Type: ApplicationFiled: December 24, 2012Publication date: December 25, 2014Applicant: versalis S.p.A.Inventors: Rodolfo Iezzi, Giulio Manzini, Paolo Pollesel, Alessandro Del Seppia
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Publication number: 20140206909Abstract: Process for the alkylation of aromatic hydrocarbons by means of aliphatic alcohols containing from 1 to 8 carbon atoms, which comprises feeding the hydrocarbon and alcohol to the head of a fixed-bed reactor, operating with “trickle flow” regime, containing at least one layer of a catalyst comprising a zeolite selected from medium-pore zeolites and large-pore zeolites.Type: ApplicationFiled: June 21, 2012Publication date: July 24, 2014Applicant: VERSALIS S.P.A.Inventors: Paolo Calaresu, Elena Bencini, Alessandro Casalini, Alessandro Del Seppia, Giovanni Antonio Fois
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Publication number: 20140142348Abstract: Process for the alkylation of aromatic hydrocarbons by means of olefins containing from 2 to 8 carbon atoms, which comprises feeding the hydrocarbon, olefin, and possibly water, to the head of a fixed-bed reactor, operating with a “trickle flow” regime, containing at least one layer of a catalyst comprising a medium- or large-pore zeolite.Type: ApplicationFiled: June 21, 2012Publication date: May 22, 2014Applicant: Versalis S.P.A.Inventors: Paolo Calaresu, Alessandro Del Seppia, Elena Bencini, Giovanni Antonio Fois, Alessandro Casalini
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Publication number: 20140093437Abstract: Ammoximation reactor for cyclohexanone oxime production comprising: (a) a reactor vessel provided with a stirrer; (b) an internal filtering system; (c) an internal liquid ammonia evaporation coil; (d) an internal gaseous ammonia toroidal distributor; (e) an external cyclohexanone toroidal distributor; (f) an internal hydrogen peroxide toroidal distributor; (g) an internal cylindrical draft tube; (h) an external cooling jacket. Said ammoximation reactor allows to obtain a better mixing of the components of the ammoximation reaction and to maximize both the heat-transfer coefficients and the mass-transfer coefficients. Moreover, said ammoximation reactor allows to increase the packing time of the catalyst used in the ammoximation reaction on the filtering system (i.e. the plugging phenomena) so as to avoid the necessity of carrying out the backwashings with nitrogen.Type: ApplicationFiled: April 27, 2012Publication date: April 3, 2014Applicant: Versalis S.P.A.Inventors: Alessandro Del Seppia, Elena Ghirardo