PROPENE RECOVERY BY SCRUBBING WITH A SOLVENT/WATER MIXTURE

    公开(公告)号:US20210002241A1

    公开(公告)日:2021-01-07

    申请号:US16500313

    申请日:2018-04-13

    Applicant: BASF SE

    Abstract: The invention relates to a process for preparing propylene oxide, comprising (i) providing a stream comprising propene, propane, hydrogen peroxide or a source of hydrogen peroxide, water, and an organic solvent; (ii) passing the liquid feed stream provided in (i) into an epoxidation zone comprising an epoxidation catalyst comprising a titanium zeolite, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propene, propane, propylene oxide, water, and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propene, propane, propylene oxide, water, and the organic solvent; (iv) separating propene and propane from the effluent stream by distillation, comprising subjecting the effluent stream to distillation conditions in a distillation unit, obtaining a gaseous stream (S1) which is enriched in propene and propane compared to the effluent stream subjected to distillation conditions, and a liquid bottoms stream (S2) which is enriched in propylene oxide, water and organic solvent compared to the effluent stream subjected to distillation conditions; (v) separating propane from the stream (S1) in a separation zone, comprising subjecting the stream (S1) to washing conditions in a scrubber, wherein a solvent mixture comprising organic solvent and water is added as entraining agent, obtaining a bottoms stream (S3), which comprises organic solvent, water and at least 70 weight-% of the propene comprised in (S1); and a gaseous top stream (S4), which comprises at least 5 weight-% of the propane comprised in stream (S1).

    PROCESS FOR PREPARING A TITANIUM-CONTAINING ZEOLITIC MATERIAL HAVING AN MWW FRAMEWORK STRUCTURE
    14.
    发明申请
    PROCESS FOR PREPARING A TITANIUM-CONTAINING ZEOLITIC MATERIAL HAVING AN MWW FRAMEWORK STRUCTURE 审中-公开
    制备含有MWW框架结构的含钛的ZEOLITIC材料的方法

    公开(公告)号:US20150368115A1

    公开(公告)日:2015-12-24

    申请号:US14764354

    申请日:2014-02-05

    Applicant: BASF SE

    CPC classification number: B01J37/0045 B01J29/7038 B01J29/89 C01B39/085

    Abstract: A process for the preparation of a titanium-containing zeolitic material having an MWW framework structure, the process comprising (i) providing a zeolitic material having an MWW framework structure comprising SiO2 and B2O3, (ii) incorporating titanium into the zeolitic material provided in (i) comprising (ii.1) preparing an aqueous synthesis mixture containing the zeolitic material provided in (i), an MWW template compound and a titanium source, (ii.2) hydrothermally synthesizing a titanium-containing zeolitic material having an MWW framework structure from the aqueous synthesis mixture prepared in (ii.1), obtaining a mother liquor comprising the titanium-containing zeolitic material having an MWW framework structure; (iii) spray-drying the mother liquor obtained from (ii.2) comprising the titanium-containing zeolitic material having an MWW framework structure.

    Abstract translation: 一种制备具有MWW骨架结构的含钛沸石材料的方法,该方法包括(i)提供具有包含SiO 2和B 2 O 3的MWW骨架结构的沸石材料,(ii)将钛掺入提供于( i)包括(ii.1)制备含有(i)中提供的沸石材料的水性合成混合物,MWW模板化合物和钛源,(ii.2)水热合成具有MWW骨架结构的含钛沸石材料 从(ii.1)中制备的水性合成混合物得到含有具有MWW骨架结构的含钛沸石材料的母液; (iii)喷雾干燥由(ii.2)得到的母液,该母液包含具有MWW骨架结构的含钛沸石材料。

    MOLDING FOR A HYDROPHOBIC ZEOLITIC MATERIAL AND PROCESS FOR ITS PRODUCTION
    18.
    发明申请
    MOLDING FOR A HYDROPHOBIC ZEOLITIC MATERIAL AND PROCESS FOR ITS PRODUCTION 审中-公开
    用于制造水解沸石材料的成型及其生产工艺

    公开(公告)号:US20160250624A1

    公开(公告)日:2016-09-01

    申请号:US15030754

    申请日:2014-10-22

    Applicant: BASF SE

    Abstract: The present invention relates to A process for the production of a molding, comprising (I) providing a zeolitic material; (II) mixing the zeolitic material provided in step (I) with one or more binders; (III) kneading of the mixture obtained in step (II); (IV) molding of the kneaded mixture obtained in step (III) to obtain one or more moldings; (V) drying of the one or more moldings obtained in step (IV); and (VI) calcining of the dried molding obtained in step (V); wherein the zeolitic material provided in step (I) displays a water adsorption ranging from 1 to 15 wt.-% when exposed to a relative humidity of 85%, as well as to a molding obtainable or obtained according to the inventive process in addition to a molding per se and to their respective use.

    Abstract translation: 本发明涉及一种用于生产模制品的方法,包括(I)提供沸石材料; (II)将步骤(I)中提供的沸石材料与一种或多种粘合剂混合; (III)捏合步骤(II)中获得的混合物; (IV)成型步骤(III)中获得的捏合混合物以获得一种或多种模制品; (V)干燥步骤(IV)中获得的一种或多种模制品; 和(VI)煅烧步骤(V)中获得的干燥模塑物; 其中步骤(I)中提供的沸石材料当暴露于85%的相对湿度时显示出1至15重量%的水吸附,以及根据本发明方法获得或获得的模制物,除了 成型本身及其各自的用途。

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