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    Treatment of residual streams from the manufacture of bisphenols
    1.
    发明授权
    Treatment of residual streams from the manufacture of bisphenols 有权

    公开(公告)号：US11760710B2

    公开(公告)日：2023-09-19

    申请号：US17257356

    申请日：2018-07-06

    Applicant: BADGER LICENSING LLC

    Inventor： David Palmer

    IPC: C07C37/86 ,  C07C37/20 ,  C07C37/84

    CPC classification number: C07C37/86 ,  C07C37/20 ,  C07C37/84 ,  C07C37/86 ,  C07C39/16

    Abstract: A method is disclosed for treating a residual stream from bisphenol manufacture, wherein the residual stream comprises unreacted phenols, bisphenol isomers, trisphenols, organic sulfides and water. The method comprises contacting at least a portion of the residual stream or a reaction product thereof with an acidic catalyst under conditions sufficient to allow acid-catalyzed hydrolysis of organic sulfides in the residual stream to the corresponding thiols and produce an effluent stream, and then distilling at least a portion of the effluent stream to recover distillate products comprising phenols and thiols and produce a bottoms product comprising bisphenol isomers and trisphenols, and having a lower content of organic sulfides than the residual stream.

    Methods of isolating phenols from phenol-containing media
    2.
    发明授权
    Methods of isolating phenols from phenol-containing media 有权

    公开(公告)号：US11548845B2

    公开(公告)日：2023-01-10

    申请号：US17470539

    申请日：2021-09-09

    Applicant: WISCONSIN ALUMNI RESEARCH FOUNDATION

    Inventor： Bradley Bolling ,  Yuwei Wu ,  Danielle Voss ,  Matthew Dorris

    IPC: C07C37/72 ,  C07C39/04 ,  B01D11/00 ,  C07C37/86 ,  B01D11/04

    Abstract: Methods of isolating phenols from phenol-containing media. The methods include combining a phospholipid-containing composition with the phenol-containing medium to generate a combined medium, incubating the combined medium to precipitate phenols in the combined medium and thereby form a phenol precipitate phase and a phenol-depleted phase, and separating the phenol precipitate phase and the phenol-depleted phase. The methods can further include extracting phenols from the separated phenol precipitate phase. The extracting can include mixing the separated phenol precipitate phase with an extraction solvent to solubilize in the extraction solvent at least a portion of the phenols originally present in the phenol precipitate phase.

    METHOD OF DECOMPOSING PHENOLIC BY-PRODUCTS
    3.
    发明申请
    METHOD OF DECOMPOSING PHENOLIC BY-PRODUCTS 有权

    公开(公告)号：US20220259125A1

    公开(公告)日：2022-08-18

    申请号：US17629319

    申请日：2021-06-15

    Applicant: LG CHEM, LTD.

    Inventor： Min Suk KANG ,  Sang Beom LEE ,  Ji Hyang SON ,  Chi Hyun JANG

    IPC: C07C37/86 ,  C07C37/68 ,  C07C15/085 ,  C07C15/46

    Abstract: Provided is a method of decomposing phenolic by-products, and more particularly, a method of decomposing phenolic by-products including: supplying a phenolic by-product stream to a decomposition device to perform thermal decomposition; separating an upper discharge stream including effective components and a lower discharge stream including materials having a high boiling point in the decomposition device; supplying the lower discharge stream from the decomposition device, a side discharge stream from the decomposition device, and a process water stream to a mixing device and mixing these streams; and supplying a discharge stream from the mixing device to a layer separation device to separate the discharge stream from the mixing device into an oil phase and an aqueous phase.

    Methods of isolating phenols from phenol-containing media
    5.
    发明授权
    Methods of isolating phenols from phenol-containing media 有权

    公开(公告)号：US11142492B2

    公开(公告)日：2021-10-12

    申请号：US17003625

    申请日：2020-08-26

    Applicant: WISCONSIN ALUMNI RESEARCH FOUNDATION

    Inventor： Bradley Bolling ,  Yuwei Wu ,  Danielle Voss ,  Matthew Dorris

    IPC: C07C37/72 ,  C07C39/00 ,  C07C37/86 ,  B01D11/04 ,  C07C39/04

    Abstract: Methods of isolating phenols from phenol-containing media. The methods include combining a phospholipid-containing composition with the phenol-containing medium to generate a combined medium, incubating the combined medium to precipitate phenols in the combined medium and thereby form a phenol precipitate phase and a phenol-depleted phase, and separating the phenol precipitate phase and the phenol-depleted phase. The methods can further include extracting phenols from the separated phenol precipitate phase. The extracting can include mixing the separated phenol precipitate phase with an extraction solvent to solubilize in the extraction solvent at least a portion of the phenols originally present in the phenol precipitate phase.

    PURIFICATION OF TRIS-HYDROXYARYL COMPOUNDS
    9.
    发明申请
    PURIFICATION OF TRIS-HYDROXYARYL COMPOUNDS 有权
    三羟甲基化合物的纯化

    公开(公告)号：US20110251438A1

    公开(公告)日：2011-10-13

    申请号：US13081811

    申请日：2011-04-07

    Applicant: Christian Münnich ,  Stephan Konrad ,  Karl-Heinz Köhler

    Inventor： Christian Münnich ,  Stephan Konrad ,  Karl-Heinz Köhler

    IPC: C07C39/16 ,  C07C37/86

    CPC classification number: C07C37/82 ,  C07C39/16

    Abstract: The present invention is directed to a composition comprising a tris-hydroxyaryl compound having a metal ion impurity content of less than 10 ppm and to a process for the purification of tris-hydroxyaryl compound having a metal ion impurity, comprising at least the following steps: a) conditioning a sulphonic acid group-containing active ion exchanger with a solvent which is suitable for the handling of the tris-hydroxyaryl compounds, b) producing a solution of the tris-hydroxyaryl compounds to be purified in a solvent which is suitable for the handling of the tris-hydroxyaryl compounds, c) contacting the tris-hydroxyaryl compound-containing solution from b) with the conditioned ion exchanger from a), d) separating the tris-hydroxyaryl compound-containing solution from c) from the conditioned ion exchanger, e) removing at least part of the solvent from the solution of the tris-hydroxyaryl compound separated in d) under low temperature stress.

    Abstract translation: 本发明涉及包含金属离子杂质含量小于10ppm的三羟基芳基化合物和纯化具有金属离子杂质的三羟基芳基化合物的方法的组合物，至少包括以下步骤： a）用适合于处理三羟基芳基化合物的溶剂调节含磺酸基团的活性离子交换剂，b）产生待纯化的三羟基芳基化合物在适合于 处理三羟基芳基化合物，c）使来自b）的三羟基芳基化合物的溶液与a）的调节离子交换剂接触，d）从调节离子交换器中分离含有三羟基芳基化合物的溶液与c） ，e）在低温应力下从d）中分离的三羟基芳基化合物的溶液中除去至少一部分溶剂。

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