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    PROCESS FOR THE PREPARATION OF GLYCOLS
    3.
    发明申请
    PROCESS FOR THE PREPARATION OF GLYCOLS 审中-公开

    公开(公告)号：US20180282249A1

    公开(公告)日：2018-10-04

    申请号：US15763714

    申请日：2016-09-27

    申请人： SHELL OIL COMPANY

    发明人： Duraisamy MUTHUSAMY

    IPC分类号： C07C29/60 ,  C07C29/132

    CPC分类号： C07C29/60 ,  C07C29/132 ,  C07C31/202 ,  C07C31/205

    摘要： A process for the preparation of glycols from a saccharide-containing feedstock comprising the steps of: (a) preparing a reaction mixture in a reactor vessel comprising the saccharide-containing feedstock, a solvent, a catalyst component with retro-aldol catalytic capabilities and a first hydrogenation catalyst comprising an element selected from groups 8, 9 and 10 of the periodic table; (b) supplying hydrogen gas to the reaction mixture in the reactor vessel; (c) monitoring the activity of the first hydrogenation catalyst; (d) preparing a second hydrogenation catalyst by contacting in a reactor a catalyst precursor comprising one or more elements selected from chromium and groups 8, 9, 10 and 11 of the periodic table with hydrazine to convert the catalyst precursor into the second hydrogenation catalyst; (e) when the hydrogenation activity declines, supplying the second hydrogenation catalyst to the reactor vessel to supplement the declined hydrogenation activity in the reactor vessel.

    PROCESS FOR THE PREPARATION OF GLYCOLS
    4.
    发明申请
    PROCESS FOR THE PREPARATION OF GLYCOLS 审中-公开

    公开(公告)号：US20180273453A1

    公开(公告)日：2018-09-27

    申请号：US15763470

    申请日：2016-09-27

    申请人： SHELL OIL COMPANY

    发明人： Johannes Leo Marie VAN DER BIJL ,  Evert VAN DER HEIDE ,  Pieter HUIZENGA ,  Munro MACKAY

    IPC分类号： C07C29/132 ,  C07C29/60 ,  B01J25/02 ,  B01J31/22 ,  B01J23/30

    CPC分类号： C07C29/132 ,  B01J23/30 ,  B01J25/02 ,  B01J31/2239 ,  C07C29/60 ,  Y02P20/52 ,  C07C31/202 ,  C07C31/205

    摘要： A process for the preparation of glycols from a saccharide-containing feedstock having the steps of: (a) preparing a reaction mixture in a reactor vessel comprising the saccharide-containing feedstock, a solvent, hydrogen, a catalyst component with retro-aldol catalytic capabilities and a first hydrogenation catalyst comprising an element selected from groups 8, 9 and 10 of the periodic table; (b) monitoring the hydrogenation activity in the reactor vessel; (c) when the activity of the first hydrogenation catalyst declines, as indicated by the crossing of a threshold, supplying into the reaction mixture in the reactor vessel a catalyst precursor comprising one or more elements selected from groups 8, 9, 10 and 11 of the periodic table; and (d) converting the catalyst precursor in the presence of hydrogen in the reactor vessel to a second hydrogenation catalyst to supplement the declined hydrogenation activity in the reactor vessel.

    Ceramic printing ink composition having antibacterial function
    6.
    发明申请
    Ceramic printing ink composition having antibacterial function 审中-公开

    公开(公告)号：US20180163065A1

    公开(公告)日：2018-06-14

    申请号：US15579707

    申请日：2016-07-26

    申请人： THERMOLON KOREA CO., LTD

    发明人： Chung Kwon PARK

    IPC分类号： C09D11/033 ,  C09D11/037 ,  C01B33/12 ,  C07C31/20 ,  C07C31/10 ,  B41M5/00

    CPC分类号： C09D11/033 ,  B41M5/007 ,  C01B33/12 ,  C01P2004/12 ,  C01P2006/16 ,  C07C31/10 ,  C07C31/202 ,  C09D5/14 ,  C09D7/40 ,  C09D11/037

    摘要： The present invention relates to a ceramic printing ink composition having antibacterial function, and more particularly to a ceramic printing ink composition which is prepared by mixing deionized water, propylene glycol, propylene glycol methyl ether acetate (PMA) solvent, propylene glycol methyl ether (PM) solvent, isopropyl alcohol (IPA), a dispersing agent, a pigment. In a process of printing a pattern using the ceramic printing ink composition, the pattern is printed between or on ceramic coating layers by pad, screen or stamp printing. More specifically, ceramic coating (sol-gel) layers (1-coat, 2-coat, 3-coat, etc.) are formed and set-to-touch, after which the ceramic printing ink composition is coated on the coating layer and heated and cured simultaneously with the coating layers. Thus, bonding and adhesive strength of the ceramic printing ink composition is enhanced to enable printing to be more stably and easily performed on the ceramic coating layer.

    PROCESS FOR THE SEPARATION OF CLYCOLS
    9.
    发明申请
    PROCESS FOR THE SEPARATION OF CLYCOLS 审中-公开

    公开(公告)号：US20180079702A1

    公开(公告)日：2018-03-22

    申请号：US15564438

    申请日：2016-04-05

    申请人： SHELL OIL COMPANY

    发明人： Pieter HUIZENGA ,  Kai Jürgen FISCHER ,  Karin BUS ,  Waldo Eugene DE VILLIERS ,  Carmelo PEREZ GOLF

    IPC分类号： C07C29/82

    CPC分类号： C07C29/82 ,  C07C29/80 ,  C07C31/202

    摘要： The invention provides a process for the separation of MEG and 1,2-BDO from a first mixture comprising MEG and 1,2-BDO in a weight ratio of at least 10:1 (MEG:1,2- BDO), said process comprising the steps of; (i) providing the first mixture as a feed to a distillation column at a point in the range of from 20 to 80% of the column height; (ii) operating the distillation at a temperature in the range of from 120 to 190° C. and at a pressure in the range of from 5 kPa to atmospheric pressure; (iii) removing an MEG stream from the distillation column at a point below the point at which the first mixture is fed; (iv) removing an overheads stream comprising an azeotrope of MEG and 1,2-BDO.