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    PROCESS FOR THE MANUFACTURE OF CARBOXYLIC ACIDS OR CARBOXYLIC ACID DERIVATIVES
    33.
    发明申请
    PROCESS FOR THE MANUFACTURE OF CARBOXYLIC ACIDS OR CARBOXYLIC ACID DERIVATIVES 审中-公开

    公开(公告)号：US20190276409A1

    公开(公告)日：2019-09-12

    申请号：US16347960

    申请日：2017-11-06

    Applicant: SOLVAY SA

    Inventor： Janis JAUNZEMS

    IPC: C07D231/14

    Abstract: This invention concerns a process for the manufacture of carboxylic acids or carboxylic acid derivatives and a process for the manufacture of agrochemically and pharmaceutically active compounds comprising the process for the manufacture of carboxylic acids or their derivatives. The process for the manufacture of carboxylic acids or carboxylic acid derivatives comprises the steps of: a) halogenating a compound of formula (I): R1—C(O)—CHX2, to obtain a compound of formula (II): R1—C(O)—CX2X′, b) transforming the compound of formula (II) in the presence of a compound A into a compound of formula (III): R′C(O)Z, wherein Z is a residue selected from the group consisting of —OH, —O−, —NR′R′. The process can optionally comprise additional steps.

    FUNCTIONALIZED PARTICULATE BICARBONATE AS BLOWING AGENT, FOAMABLE POLYMER COMPOSITON CONTAINING IT, AND ITS USE IN MANUFACTURING A THERMOPLASTIC FOAMED POLYMER
    34.
    发明申请
    FUNCTIONALIZED PARTICULATE BICARBONATE AS BLOWING AGENT, FOAMABLE POLYMER COMPOSITON CONTAINING IT, AND ITS USE IN MANUFACTURING A THERMOPLASTIC FOAMED POLYMER 审中-公开

    公开(公告)号：US20190225765A1

    公开(公告)日：2019-07-25

    申请号：US16317376

    申请日：2017-07-20

    Applicant: Solvay SA

    Inventor： Karine CAVALIER ,  Jorge Alejandro KABBABE MALAVE ,  Jean-Philippe PASCAL ,  Thibaud Louis Alfred DETOISIEN

    IPC: C08J9/08 ,  C08J9/00 ,  C08J3/22 ,  C08L27/06

    Abstract: A chemical blowing agent for foaming a thermoplastic polymer, for example PVC plastisol or a polymer resin in an extrusion process, comprising a functionalized particulate bicarbonate containing at least one additive, preferably excluding an exothermic blowing agent. The additive may be selected from the group consisting of polymers; inorganic salts; oils; fats; resin acids, any derivative thereof, and salts thereof; amino acids; fatty acids; carboxylic or polycarboxylic acids, soaps; waxes; derivatives thereof; salts thereof; or any combinations thereof. The particulate bicarbonate may be functionalized by spray-drying, coating, extrusion or co-grinding with at least one additive. The functionalized particulate bicarbonate may comprise 50 wt % to less than 100 wt % of the bicarbonate component, and 0.02-50 wt % of the additive. A foamable polymer composition comprising such chemical blowing agent. A process for manufacturing a foamed polymer, such as foamed PVC, comprising shaping and heating the foamable polymer composition, and a foamed polymer obtained by such process.

    PRODUCTION OF CRYSTALLINE SODIUM BICARBONATE
    40.
    发明申请
    PRODUCTION OF CRYSTALLINE SODIUM BICARBONATE 审中-公开

    公开(公告)号：US20180230018A1

    公开(公告)日：2018-08-16

    申请号：US15761896

    申请日：2016-09-22

    Applicant: Solvay SA

    Inventor： James C. KISIELEWSKI ,  David M. HANSEN ,  Keith O. HAYES ,  Mayra MUCI-CASTANEDA ,  Alain VANDENDOREN

    IPC: C01D7/40 ,  C01D7/24 ,  C01D7/10

    CPC classification number: C01D7/40 ,  C01D7/10 ,  C01D7/24

    Abstract: A process for producing crystalline sodium bicarbonate, comprising: providing an aqueous sodium-bicarbonate containing liquor originating from a reactive crystallization step in which first sodium bicarbonate crystals are produced and recovered; feeding at least a portion of said aqueous sodium-bicarbonate containing liquor to a cooling crystallization unit to form second sodium bicarbonate crystals and produce a crystals slurry comprising the second sodium bicarbonate crystals; and withdrawing a portion of the crystals slurry from the cooling crystallization unit for the withdrawn second sodium bicarbonate crystals to be further processed. A portion of the second sodium bicarbonate crystals withdrawn from the cooling crystallization unit may be fed to a sodium bicarbonate reactive crystallization unit, to a caustic unit, or may be separated and dried. The reactive crystallization, separation and/or drying units where the second sodium bicarbonate crystals are further processed may be the same units where the first sodium bicarbonate crystals are processed.

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