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13 条记录 (耗时 0.012 秒)

    REMOVAL OF SOUR GASES FROM GAS MIXTURES CONTAINING THEM
    4.
    发明申请
    REMOVAL OF SOUR GASES FROM GAS MIXTURES CONTAINING THEM 有权

    公开(公告)号：US20220056361A1

    公开(公告)日：2022-02-24

    申请号：US17274835

    申请日：2019-09-09

    申请人： ENI S.P.A.

    发明人： Alberto Renato De Angelis ,  Giuseppe Bellussi

    IPC分类号： C10L3/10 ,  B01D53/14 ,  B01D53/62 ,  B01D53/78

    摘要： There is an absorbent mixture usable for the removal of sour gases from gas mixtures. The mixture has at least one organic base having a pKb (in water) less than or equal to 3.2; at least one alcoholic solvent of general formula R(OH)n having a boiling temperature above or equal to 100° C. at ambient pressure, wherein R is a linear or branched saturated alkyl group having a number of carbon atoms between 2 and 20 and n is a whole number varying between 1 and 20; an aprotic polar solvent having a dielectric constant E at 25° C. greater than or equal to 30, a viscosity μ at 25° C. less than or equal to 14 cP, preferably less than or equal to 12 cP; and a boiling temperature at normal pressure equal to or above 130° C. There is also a process for the removal of sour gases using the absorbent mixture.

    ELASTOMERIC TERPOLYMERS WITH A HIGH SULFUR CONTENT AND PROCESS FOR THEIR PREPARATION
    5.
    发明申请
    ELASTOMERIC TERPOLYMERS WITH A HIGH SULFUR CONTENT AND PROCESS FOR THEIR PREPARATION 有权

    公开(公告)号：US20210070942A1

    公开(公告)日：2021-03-11

    申请号：US17053114

    申请日：2019-05-10

    申请人： ENI S.P.A. ,  CONSIGLIO NAZIONALE DELLE RICERCHE

    发明人： Alberto Renato De Angelis ,  Giovanni Regattieri ,  Chiara Carrozza

    IPC分类号： C08G75/14

    摘要： Elastomeric terpolymer with a high sulfur content comprising:—sulfur in a quantity higher than or equal to 40% by weight, preferably ranging from 55% by weight to 90% by weight, with respect to the total weight of said elastomeric terpolymer;—a first monomer selected from aromatic vinyl compounds, preferably from styrene, divinylbenzene, vinyl toluene, tert-butylstyrene, p-methylstyrene, γ-methylstyrene, α-methylstyrene, vinylnaphthalene;—a second monomer selected from:—aromatic vinyl compounds, preferably from styrene, divinylbenzene, vinyl toluene, tert-butylstyrene, p-methylstyrene, γ-methylstyrene, α-methylstyrene, vinyl-naphthalene;—monomers having general formula (I): CH2═CH—(CH2)y—(X)n—(X)m—(CH2)x—CH═CH2, wherein:—X represents a sulfur atom, a selenium atom, a tellurium atom, preferably a sulfur atom, a selenium atom;—y and x, equal to or different from one another, are a whole number ranging from 0 to 4;—n and m, equal to or different from one another, are a whole number ranging from 0 to 3, at least one of n and m being equal to 1; said first monomer and said second monomer being present in a quantity lower than or equal to 60% by weight, preferably ranging from 10% by weight to 45% by weight, with respect to the total weight of said elastomeric terpolymer; said first monomer and said second monomer being different from one another. Said elastomeric terpolymer with a high sulfur content may be advantageously used in various applications such as, for example, thermal insulation, conveyor belts, transmission belts, flexible hoses and, in particular, in elastomeric compositions for tyres.

    THERMOPLASTIC COPOLYMERS WITH A HIGH SULFUR CONTENT AND PROCESS FOR THEIR PREPARATION
    7.
    发明申请
    THERMOPLASTIC COPOLYMERS WITH A HIGH SULFUR CONTENT AND PROCESS FOR THEIR PREPARATION 有权

    公开(公告)号：US20210230358A1

    公开(公告)日：2021-07-29

    申请号：US17053440

    申请日：2019-05-10

    申请人： ENI S.P.A.

    发明人： Alberto Renato De Angelis ,  Marco Guidolin

    IPC分类号： C08G61/08 ,  C08K3/06 ,  C08K5/372

    摘要： Thermoplastic copolymer with a high sulphur content comprising sulphur in a quantity higher than or equal to 40% by weight, preferably ranging from 45% by weight to 90% by weight, with respect to the total weight of said thermoplastic copolymer, and at least one monomer having general formula (I) wherein: R1 and R2, equal to or different from each other, represent a hydrogen atom; or they are selected from C1-C20, preferably C1-C15, linear or branched alkyl groups, C2-C20, preferably C2-Ci5, linear or branched alkenyl groups, C2-C20, preferably C2-C15, linear or branched alkylidene groups; or R1 and R2, may optionally be bound to one another so as to form, together with the other atoms to which they are bound, a cycloalkene containing from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted with C1-C20, preferably C1-C15, linear or branched alkyl groups, said cycle optionally containing heteroatoms such as, for example, oxygen, sulphur, nitrogen, silicon, phosphorus, selenium; said monomer having the general formula (I) being present in a quantity lower than or equal to 60% by weight, preferably ranging from 10% by weight to 55% by weight, with respect to the total weight of said thermoplastic copolymer. Said thermoplastic copolymer with a high sulphur content exhibits a high glass transition temperature (Tg) [i.e. glass transition temperature (Tg) higher than or equal to 80° C.] and good mechanical properties and can be advantageously used, as such or in admixture with other (co)polymers (for example, styrene, divinylbenzene), in a great many applications such as, for example, packaging, electronics, household appliances, computer cases, CD cases, kitchens, laboratories, office and medical items, in buildings and in construction.

    Process for preparing cyclic acetals which can be used as fuel components
    8.
    发明授权
    Process for preparing cyclic acetals which can be used as fuel components 有权

    公开(公告)号：US10087163B2

    公开(公告)日：2018-10-02

    申请号：US15302819

    申请日：2015-04-03

    申请人： ENI S.p.A.

    发明人： Giulio Assanelli ,  Alberto Renato De Angelis

    IPC分类号： C07D317/12 ,  C07D317/26 ,  C10L1/185

    摘要： The present invention relates to a process for preparing cyclic acetals having general formula (I) wherein Y and Y′, equal to or different from each other, are selected from H and a group OR, R being a linear or branched alkyl containing from 1 to 8 carbon atoms, comprising at least the following phases: (i) providing a reaction mixture comprising at least one vicinal diol having formula (II) Z—CH2—CHOH—CH2OH wherein Z is selected from H and a group OR′, R′ being a linear or branched alkyl containing from 1 to 8 carbon atoms, said mixture being substantially free of aldehydes having general formula RI—CHO, wherein RI is a linear or branched alkyl containing from 1 to 6 carbon atoms, possibly substituted by an alkoxide group OR111, wherein RIII is an alkyl containing from 1 to 4 carbon atoms; (ii) thermally treating said reaction mixture at a temperature within the range of 100° C.-300° C. in the presence of at least one acid catalyst, obtaining said compound having formula (I). The acetals having formula (I) can be used as fuel components.

    PROCESS FOR HIGH SULFER CONTENT COPOLYMER PREPARATION
    9.
    发明申请
    PROCESS FOR HIGH SULFER CONTENT COPOLYMER PREPARATION 有权

    公开(公告)号：US20220267487A1

    公开(公告)日：2022-08-25

    申请号：US17625191

    申请日：2020-07-07

    申请人： ENI S.P.A.

    发明人： Giuseppe Bellussi ,  Alberto Renato De Angelis ,  Chiara Carrozza ,  Laura Boggioni

    IPC分类号： C08F36/14 ,  C08F8/34 ,  C08F36/22 ,  C08F4/10

    摘要： There is a process for high sulfur content copolymer preparation having the step of reacting sulfur in solid form with at least one crosslinker selected from organic compounds having at least a double or triple bond in the presence of at least one catalyst selected from dithiocarbamates, mercaptobenzothiazoles, xanthates, thiophosphates, at a temperature ranging from 110° C. to 180° C.
    The high sulfur content copolymer, depending on the glass transition temperature, can be of elastomeric or thermoplastic type and can be advantageously used in different applications. In case of an elastomeric-type high sulfur content copolymer, the copolymer can be advantageously used in different applications such as, for example, thermal insulation, conveyor belts, transmission belts, flexible tubes, elastomeric tire compositions. In case of a thermoplastic-type high sulfur content copolymer, the copolymer can be advantageously used, as such or in a mixture with other (co)polymers (for example, styrene, divinylbenzene), in different applications such as, for example, packaging, electronics, household appliances, computer cases, CD cases, kitchen, laboratories, offices and medical items, in building and construction.

    BARRIER ASSEMBLY
    10.
    发明申请
    BARRIER ASSEMBLY 有权

    公开(公告)号：US20220154578A1

    公开(公告)日：2022-05-19

    申请号：US17430783

    申请日：2020-02-13

    申请人： ENI S.P.A.

    发明人： Luca Decarli ,  Laura La Rosa ,  Alberto Renato De Angelis ,  Andrea Vignali

    IPC分类号： E21F7/00 ,  E04B2/74 ,  E04B1/94

    摘要： A barrier assembly used in the protection of personnel at worksites and/or residential areas from escapes of gas. Such a barrier assembly controls the lateral and vertical spread of gas in the event of an escape of the gas, even more particularly toxic gas. The barrier assembly can be used at operating sites where gases are produced, and in particular where high concentrations of toxic gases (e.g. CO2, H2S, SO2, mercaptans etc.) are present. The barrier assembly can, optionally acting as a safety system in the event of an accidental uncontrolled release of these toxic gases into the atmosphere.