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公开(公告)号：US11318449B2
公开(公告)日：2022-05-03
申请号：US16625057
申请日：2018-06-22
Inventor： Jing Liu , Hongbin Qi , Haiyu Ren
IPC: B01J23/887 , B01J35/00 , C22C19/03
Abstract: An acid-resistant alloy catalyst, comprising nickel, one or more rare earth element, tin, aluminum and molybdenum. The catalyst is cheap and stable, does not need a carrier, can be stably applied in industrial continuous production, and can lower the production cost.
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公开(公告)号：US20210340087A1
公开(公告)日：2021-11-04
申请号：US17274033
申请日：2019-09-03
Inventor： Yi Yuan
IPC: C07C29/82 , C07D307/12
Abstract: The invention provides a process for refining non-petroleum based ethylene glycol, wherein impurities having a boiling point close to that of ethylene glycol are separated. In the process, C5-C20 oleophilic alcohol compounds, C5-C20 alkanes and/or C4-C20 oleophilic ketone compounds are subjected to azeotropism as an azeotropic agent together with the non-petroleum based ethylene glycol to obtain an azeotrope containing ethylene glycol. Then the azeotropic agent in the azeotrope is separated and removed to obtain an ethylene glycol crude product which is further purified to obtain ethylene glycol.
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公开(公告)号：US10556226B2
公开(公告)日：2020-02-11
申请号：US15514984
申请日：2015-09-23
Inventor： Jing Liu , Hongbin Qi , Haiyu Ren , Indra Prakash , Yu Shi
IPC: B01J23/10 , B01J25/02 , B01J37/00 , B01J37/08 , C07C29/132
Abstract: Disclosed is an acid-resisting alloy catalyst comprising nickel, one or more rare earth elements, stannum and aluminum. The acid-resistant alloy catalyst is low-cost and stable, and does not need a carrier, and can be stably used in continuous industrial production, thus achieving a low production cost.
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公开(公告)号：US20230295064A1
公开(公告)日：2023-09-21
申请号：US18040551
申请日：2021-07-30
Inventor： Yi Yuan
IPC: C07C29/76
CPC classification number: C07C29/76
Abstract: A method for refining a bio-based crude ethylene glycol, the method comprising: using a bio-based crude ethylene glycol as a raw material, diluting same with water to an ethylene glycol concentration of 1-95 weight %; under the conditions of the temperature being 0-100° C. and the volume space velocity being 0.01-20 BV/hr, continuously passing the diluted ethylene glycol aqueous solution through an adsorption bed, which is filled with one or more macroporous adsorption resins and an optional ion exchange resin, for an adsorption treatment so as to obtain a purified ethylene glycol aqueous solution; and then dehydrating same to obtain ethylene glycol.
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公开(公告)号：US11578024B2
公开(公告)日：2023-02-14
申请号：US17280595
申请日：2019-09-19
Inventor： Yi Yuan
Abstract: The invention provides a process for refining bio-based propylene glycol, wherein impurities having boiling points close to that of propylene glycol are separated. In this process, C5-C20 oleophilic alcohol compounds, C5-C20 alkanes and/or C4-C20 oleophilic ketone compounds are subjected to azeotropism as an azeotropic solvent together with the bio-based propylene glycol to obtain an azeotrope containing propylene glycol. Then the azeotropic solvent in the azeotrope is separated to obtain a crude propylene glycol which is further purified to obtain propylene glycol.
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Patent Agency Ranking
公开(公告)号：US11352718B2
公开(公告)日：2022-06-07
申请号：US16348407
申请日：2017-11-09
Inventor： Ronald D. Moffitt , Robert Kriegel , Marlon Salvador Morales , Haiyu Ren , Yang Yi , Jing Liu , Hongbin Qi
IPC: D01F6/84 , C08G63/183 , C08G63/42 , D01F6/62
Abstract: Disclosed are bio-based polyester fibers, particularly a PET fibers, and a method of making the same by: contacting bio-based MEG composition with a diacid composition to form a polyester composition; and spinning and/or drawing the resulting polyester composition into a fiber; wherein the bio-based MEG composition comprises: a) monoethylene glycol (MEG); and b) from about 1 ppm to about 5000 ppm of at least one C3-Cy2 1,2-diol, wherein the C3-Cj2 1, 2-diol is linear, branched, or cyclic.
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公开(公告)号：US20230406791A1
公开(公告)日：2023-12-21
申请号：US18460864
申请日：2023-09-05
Inventor： Jing Liu , Hongbin Qi , Haiyu Ren , Indra Prakash , Yu Shi
IPC: C07C29/00 , B01J25/02 , B01J27/188 , B01J35/00 , C07C29/132 , C07C29/60 , B01J37/04 , B01J23/835 , B01J23/888 , B01J27/19 , C07C31/20
CPC classification number: C07C29/00 , B01J25/02 , B01J27/188 , B01J35/0006 , C07C29/132 , C07C29/60 , B01J37/04 , B01J23/835 , B01J23/888 , B01J23/8885 , B01J27/19 , C07C31/202 , B01J23/30
Abstract: Provided is a method for preparing a diol. In the method, a saccharide and hydrogen as raw materials are contacted with a catalyst in water to prepare the diol. The employed catalyst is a composite catalyst comprised of a main catalyst and a cocatalyst, wherein the main catalyst is a water-insoluble acid-resistant alloy; and the cocatalyst is a soluble tungstate and/or soluble tungsten compound. The method uses an acid-resistant, inexpensive and stable alloy needless of a support as a main catalyst, and can guarantee a high yield of the diol in the case where the production cost is relatively low.
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公开(公告)号：US20200254427A1
公开(公告)日：2020-08-13
申请号：US16742479
申请日：2020-01-14
Inventor： Jing Liu , Hongbin Qi , Haiyu Ren , Indra Prakash , Yu Shi
Abstract: Disclosed is an acid-resistant alloy catalyst comprising nickel, one or more rare earth elements, stannum and aluminum. The acid-resistant alloy catalyst is low-cost and stable, and does not need a carrier, and can be stably used in continuous industrial production, thus achieving a low production cost.
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公开(公告)号：US20190330417A1
公开(公告)日：2019-10-31
申请号：US16348408
申请日：2017-11-09
Inventor： Haiyu Ren , Marlon Salvador Morales , Yang Yi , Jing Liu , Hongbin Qi
IPC: C08G63/183 , C07C31/20 , B29C49/00 , B29C49/08
Abstract: Disclosed are bio-based mono-ethylene glycol (MEG) compositions containing from about 1 ppm to about 5000 ppm of at least one C3-C12 1,2-diol, bio-based polyester compositions made therefrom, and methods of making the same are disclosed. Preforms and blow-molded polyester containers prepared from the bio-based MEG and polyester are described.
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公开(公告)号：US11746074B2
公开(公告)日：2023-09-05
申请号：US17387123
申请日：2021-07-28
Inventor： Jing Liu , Hongbin Qi , Haiyu Ren , Indra Prakash , Yu Shi
IPC: C07C29/00 , B01J25/02 , B01J27/188 , B01J35/00 , C07C29/132 , C07C29/60 , B01J37/04 , B01J23/835 , B01J23/888 , B01J27/19 , C07C31/20 , B01J23/30 , B01J37/00
CPC classification number: C07C29/00 , B01J23/835 , B01J23/888 , B01J23/8885 , B01J25/02 , B01J27/188 , B01J27/19 , B01J35/0006 , B01J37/04 , C07C29/132 , C07C29/60 , C07C31/202 , B01J23/30 , B01J37/0081 , B01J2523/00 , Y02P20/52 , Y02P20/582 , B01J2523/00 , B01J2523/31 , B01J2523/3706 , B01J2523/43 , B01J2523/847 , B01J2523/00 , B01J2523/31 , B01J2523/3737 , B01J2523/43 , B01J2523/68 , B01J2523/69 , B01J2523/847 , B01J2523/00 , B01J2523/305 , B01J2523/31 , B01J2523/3712 , B01J2523/43 , B01J2523/68 , B01J2523/69 , B01J2523/847 , B01J2523/00 , B01J2523/31 , B01J2523/3737 , B01J2523/43 , B01J2523/69 , B01J2523/847 , B01J2523/00 , B01J2523/31 , B01J2523/3712 , B01J2523/43 , B01J2523/51 , B01J2523/68 , B01J2523/69 , B01J2523/847 , B01J2523/00 , B01J2523/31 , B01J2523/3706 , B01J2523/3712 , B01J2523/43 , B01J2523/847 , C07C29/132 , C07C31/202 , C07C29/60 , C07C31/205
Abstract: Provided is a method for preparing a diol. In the method, a saccharide and hydrogen as raw materials are contacted with a catalyst in water to prepare the diol. The employed catalyst is a composite catalyst comprised of a main catalyst and a cocatalyst, wherein the main catalyst is a water-insoluble acid-resistant alloy; and the cocatalyst is a soluble tungstate and/or soluble tungsten compound. The method uses an acid-resistant, inexpensive and stable alloy needless of a support as a main catalyst, and can guarantee a high yield of the diol in the case where the production cost is relatively low.
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