公开(公告)号：US10913058B2

公开(公告)日：2021-02-09

申请号：US16067041

申请日：2016-12-16

Applicant: Dow Global Technologies LLC

Inventor： Kaoru Ohba ,  Kenji Takano ,  Masonori Iida ,  Shinnosuke Abe ,  Takashi Masudo ,  Osamu Kishizaki ,  Ryo Ishibashi ,  Yusuke Yamashita

IPC: C07C67/56 ,  B01J47/04 ,  B01J41/07 ,  B01D15/00 ,  B01J39/05 ,  B01J39/07 ,  B01D15/36 ,  B01J39/18 ,  B01J41/12

Abstract: Methods for the removal of ionic contaminants from hydrolysable organic solvent by ion exchange resins are described. A mixed bed of ion exchange resin with cationic ion exchange resin and weak-base anionic ion exchange resin is used in such methods.

公开(公告)号：US10688411B2

公开(公告)日：2020-06-23

申请号：US15536502

申请日：2016-02-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mitsuaki Kobayashi

IPC: B01D15/08 ,  B01J20/26 ,  B01J39/05 ,  B29C43/00 ,  B01J20/28 ,  C02F1/42 ,  B29C67/04 ,  B01J47/018 ,  B01J45/00 ,  B01J20/10 ,  B01J20/30 ,  B01J20/08 ,  C02F1/28 ,  B29K23/00 ,  B29K105/04 ,  B29L31/14

Abstract: To provide a porous molding that can be used as a molding that has sufficient strength to be self-supportable even when the dimensions change due to absorbing water and that can be suitably used as a filter for removing impurities in a liquid or gas. A porous molding is achieved by sintering a mixed powder including a dried gel powder and a thermoplastic resin powder, wherein the ratio of average particle diameter d1 of the thermoplastic resin powder to the average particle diameter d2 of the dried gel powder d2/d1 is 1.3 or greater, and the difference ratio of average particle diameter d1 of the thermoplastic resin powder to the average particle diameter d2 of the dried gel powder and the average particle diameter d3 of the dried gel powder when absorbing water and swelling is (d3−d2)/d1 is 4.0 or less.

公开(公告)号：US20200010923A1

公开(公告)日：2020-01-09

申请号：US16573034

申请日：2019-09-17

Applicant: Novamont S.p.A.

Inventor： Giampietro BORSOTTI ,  Francesca DIGIOIA

IPC: C22B3/42 ,  C22B34/36 ,  B01J39/04 ,  C22B3/00 ,  B01J47/02 ,  B01J39/05 ,  B01J39/20

Abstract: This invention relates to a process for the recovery of cobalt ions and tungstic acid and/or its derivatives from aqueous solutions, such as in particular the spent catalytic waters deriving from processes for the oxidative cleavage of vegetable oils. In particular this invention relates to a process for the recovery of cobalt ions and tungstic acid and/or its derivatives which provides for the use of cation-exchange resins.

公开(公告)号：US10518258B2

公开(公告)日：2019-12-31

申请号：US15575036

申请日：2016-05-16

Applicant: ASAHI KASEI KABUSHIKI KAISHA

Inventor： Atsushi Nakajima ,  Naoki Sakamoto ,  Takuya Morikawa

IPC: B01J39/05 ,  B01J39/20 ,  B01J47/12 ,  B32B27/30 ,  C08J5/22 ,  C25B13/08 ,  C08L33/16

Abstract: The ion exchange membrane according to the present invention comprises a layer A comprising a fluorine-containing polymer having a sulfonic acid group and a layer B comprising a fluorine-containing polymer having a carboxylic acid group, wherein the layer B has a value of an ion cluster diameter distribution M represented by the following formula (B) of greater than 10: M=(a0)2/(σ)2  (B) wherein M represents an ion cluster diameter distribution, a0 represents an average ion cluster radius, and σ represents a standard deviation of an ion cluster radius.

公开(公告)号：US20190382328A1

公开(公告)日：2019-12-19

申请号：US16225185

申请日：2018-12-19

Applicant: Lakehead University

Inventor： Sudip Kumar Rakshit ,  Sai Swaroop Dalli

IPC: C07C51/31 ,  B01J39/20 ,  B01J39/05

Abstract: A novel approach for the conversion of biomass based hemicellulose prehydrolysate to high value succinic acid has been investigated using a heterogeneous acid catalyst, Amberlyst 15 and hydrogen peroxide. A vital intermediate in this process, furfural, was oxidized in a biphasic system to produce succinic acid. Production of furfural in good yields is a limiting step in such processes for a number of reasons. Among the organic solvents evaluated, toluene was found to be an ideal solvent for furfural extraction and facilitated the conversion of furfural to succinic acid. Simultaneous extraction of furfural into the organic solvent as it is produced, increased the overall yield. It was observed that the developed method resulted in a succinic acid yield of 49% from the furfural obtained from hemicellulose prehydrolysate. It was found that 50 mg of Amberlyst 15 per mmole of furfural resulted in 100% FA conversion in less time.

公开(公告)号：US10379090B2

公开(公告)日：2019-08-13

申请号：US15186258

申请日：2016-06-17

Applicant: DIONEX CORPORATION

Inventor： Christopher A. Pohl

IPC: G01N30/96 ,  B01J39/26 ,  B01J39/20 ,  B01D15/36 ,  B01J41/14 ,  B01J41/20 ,  B01J20/30 ,  B01J39/05 ,  B01J41/05 ,  B01D15/16

Abstract: An ion exchange chromatographic packing material is described that includes a copolymer grafted to support resin particles. The copolymer includes an ion exchange group, an ionic crosslinking group configured to ionically bind to the ion exchange group, and an adjustable ionization state group having at least a first net charge at the first pH and a second net charge at the second pH. An overall first net charge of the chromatographic packing material at the first pH is opposite in polarity to the overall second net charge of the chromatographic packing material. This allows impurities to be removed from the chromatographic packing material at the second pH.

公开(公告)号：US20190217285A1

公开(公告)日：2019-07-18

申请号：US16331262

申请日：2017-09-07

Applicant: ASAHI KASEI MEDICAL CO., LTD.

Inventor： Hiroki TANIGUCHI

IPC: B01J39/26 ,  B01J39/05 ,  B01J39/20 ,  B01J47/127 ,  C08F255/02 ,  C08J5/22 ,  C07K1/18 ,  C07K16/00 ,  C07K1/22 ,  B01D15/36 ,  B01D15/18 ,  B01D15/38

CPC classification number: B01J39/26 ,  B01D15/1871 ,  B01D15/36 ,  B01D15/362 ,  B01D15/363 ,  B01D15/3809 ,  B01J39/05 ,  B01J39/07 ,  B01J39/20 ,  B01J47/12 ,  B01J47/127 ,  C07K1/18 ,  C07K1/22 ,  C07K16/00 ,  C08F255/02 ,  C08F255/023 ,  C08J5/22 ,  C08J5/2287 ,  G01N30/02 ,  G01N30/88

Abstract: A cation exchange chromatographic matrix comprising a base material, and a copolymer with one monomer unit having at least a sulfonic acid group, the copolymer being immobilized on the base material, wherein: the copolymer forms substantially no cross-linked structure, and the copolymer comprises neither acrylamide nor an acrylamide derivative as a monomer unit, or comprises acrylamide or an acrylamide derivative as a monomer unit in a range which has no substantial influence; the ratio of the mass of the copolymer to the mass of the base material is 5% or more and 200% or less; and the density of the sulfonic acid group is higher than 30 mmol/L and 200 mmol/L or lower.

公开(公告)号：US10351428B2

公开(公告)日：2019-07-16

申请号：US15467186

申请日：2017-03-23

Applicant: HSY Helsingin seudun ympäristöpalvelut-kuntayhtymä

Inventor： Tommi Fred ,  Mari Heinonen ,  Paula Lindell ,  Sini Reuna

IPC: C01B25/18 ,  C01B25/28 ,  C02F1/00 ,  C02F1/24 ,  C02F1/52 ,  C02F1/66 ,  C02F1/20 ,  C02F1/42 ,  C02F3/12 ,  B01J39/05 ,  B01J49/53 ,  C02F101/10 ,  C02F101/16

Abstract: A method for removal and recovery of phosphorus includes a precipitation step for precipitating phosphorus from a liquid stream comprising at most 30 mg of phosphorus per liter and at most than 50 mg of suspended solids per liter, using a precipitation agent, to form a precipitate, to form a precipitate; a first separation step for separating the precipitate from the liquid stream; a dissolution step for dissolving the precipitate in phosphoric acid to obtain a first solution; and a second separation step for separating the phosphoric acid and the precipitation agent.

公开(公告)号：US10315973B2

公开(公告)日：2019-06-11

申请号：US15763296

申请日：2015-12-08

Applicant: Dalian Institute of Chemical Physics, Chinese Academy of Sciences

Inventor： Youming Ni ,  Wenliang Zhu ,  Yong Liu ,  Hongchao Liu ,  Lei Shi ,  Zhongmin Liu

IPC: C07C29/10 ,  C07C31/20 ,  B01J29/70 ,  B01J39/05 ,  B01J29/08 ,  B01J29/18 ,  B01J29/40 ,  B01J29/65 ,  B01J31/02

Abstract: This invention provides a method for preparing ethylene glycol by hydrolyzing ethylene glycol monomethyl ether. The method comprises passing a fresh raw material containing ethylene glycol monomethyl ether and water through a reaction zone loaded with a solid acid catalyst to react under the following conditions; separating the reacted mixture via a separation system to obtain a target product of ethylene glycol, by-products containing methanol, dimethyl ether and ethylene glycol-based derivatives, and an unreacted raw material containing ethylene glycol monomethyl ether and water; passing the target product of ethylene glycol into a product collection system; and passing methyl alcohol and dimethyl ether in the by-products into a by-product collection system; and after being mixed with the fresh raw materials containing ethylene glycol monomethyl ether and water, the ethylene glycol-based derivatives in the by-products and the unreacted raw material containing ethylene glycol monomethyl ether and water being recycled into the reaction zone, to realize the preparation of ethylene glycol by hydrolyzing ethylene glycol monomethyl ether. This invention provides a new process to realize the preparation of ethylene glycol by hydrolyzing ethylene glycol monomethyl ether. And in the method, the catalyst has long life and good stability.

公开(公告)号：US20190106369A1

公开(公告)日：2019-04-11

申请号：US16087762

申请日：2017-03-06

Applicant: Evonik Degussa GmbH

Inventor： Frank Schubert ,  Wilfried Knott ,  Andrea Villa ,  Volker Zellmer ,  Gerrit Wienhoefer

IPC: C07C41/36 ,  C08G65/30 ,  B01J39/20 ,  B01J39/05

Abstract: A method of processing of base-catalysed alkoxylation products using sulphonic acid-containing ion exchangers is described, comprising providing a mixture comprising the alkali-catalysed alkoxylation product to be processed, alcohol having 1 to 4 carbon atoms and water, treating this mixture with a sulphonic acid-containing cation exchanger at >40° C. and removal of the alkoxylation product from the mixture thus treated.