公开(公告)号：US20230193420A1

公开(公告)日：2023-06-22

申请号：US18169259

申请日：2023-02-15

Applicant: Novamont S.p.A.

Inventor： Giampietro BORSOTTI ,  Francesca Digioia

IPC: C22B3/42 ,  B01J39/05 ,  C02F1/26 ,  B01J39/04 ,  C02F1/42 ,  C22B34/36 ,  C22B3/00 ,  B01J47/02 ,  B01J39/20 ,  C02F101/20 ,  C02F103/32 ,  C02F101/32

CPC classification number: C22B3/42 ,  B01J39/04 ,  B01J39/05 ,  B01J39/20 ,  B01J47/02 ,  C02F1/26 ,  C02F1/42 ,  C22B23/0453 ,  C22B34/36 ,  C22B34/365 ,  C02F2001/425 ,  C02F2101/20 ,  C02F2101/32 ,  C02F2103/322 ,  Y02P10/20

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：US11638916B1

公开(公告)日：2023-05-02

申请号：US17959086

申请日：2022-10-03

Applicant: Clayton McMonigle Jones

Inventor： Clayton McMonigle Jones

IPC: B01J47/06 ,  B01J39/04 ,  B01J39/02 ,  B01J39/20 ,  B01J39/10 ,  C02F1/42 ,  C02F1/48 ,  C02F1/00 ,  C01D15/00 ,  C02F101/10

Abstract: Improvements in a lithium-ion extraction apparatus to extract lithium-ion from water and more specifically salt or brine water. The extraction of lithium-ion utilizing electromagnetic separation into a sorbent shortens the extraction time and minimizes environmental impact. The sorbent is typically a polymer that is in solution with the brine where direct contact with the brine water with the sorbent extracts lithium-ions. The fixed and magnetic field magnetic field increases the absorption in the sorbent by energizing the sorbent. The sorbent is in the form of porous beads that have selective lithium-ion affinity in a continuous solid-phase extraction process. The lithium-ion extraction apparatus includes fluid flow, agitation, pressure, and temperature control of the brine solution. The flow rate alters and controls the dwell time that the brine solution is in proximity to the electromagnets.

公开(公告)号：US11623212B2

公开(公告)日：2023-04-11

申请号：US17241240

申请日：2021-04-27

Applicant: Evoqua Water Technologies LLC

Inventor： James Buckner ,  Gregory Bachman

IPC: B01J49/60 ,  B01J39/18 ,  C02F1/42 ,  B01J39/04 ,  B01J47/022 ,  B01J47/016 ,  B01J47/04 ,  B01J47/14

Abstract: Methods of stabilizing virgin ion exchange resin material are provided. The methods include rinsing virgin ion exchange resin material with deoxygenated water, introducing the rinsed virgin ion exchange resin material into a liquid impermeable compartment of a gas impermeable vessel and hermetically sealing the vessel. The methods include rinsing virgin ion exchange resin material with deoxygenated water, introducing the rinsed virgin ion exchange resin material into a gas impermeable vessel, introducing an oxygen scavenging material into the gas impermeable vessel, and hermetically sealing the vessel. A method of facilitating water treatment in a site in need thereof by providing rinsed virgin ion exchange resin material in deoxygenated water positioned in a liquid impermeable compartment of a gas impermeable vessel is also provided. A vessel containing deoxygenated water and virgin ion exchange resin material and an oxygen scavenging material is also provided.

公开(公告)号：US11542181B2

公开(公告)日：2023-01-03

申请号：US15779990

申请日：2016-11-30

Applicant: UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE

Inventor： Jordan Poler ,  James E. Amburgey ,  Billy R. Johnson ,  Amir Y. Alansari ,  Timothy Eldred

IPC: C02F1/42 ,  B01D15/36 ,  B01D63/06 ,  B01D65/02 ,  B01J39/04 ,  B01J39/19 ,  B01J39/26 ,  B01J41/04 ,  B01J41/12 ,  B01J41/13 ,  B01J47/127 ,  C02F1/44 ,  C02F101/10 ,  C02F101/20 ,  C02F101/30

Abstract: In one aspect, separation media are described herein operable for removing one or more water contaminants including NOM and derivatives thereof. Briefly, a separation medium includes a nanoparticle support and an oligomeric stationary phase forming a film on individual nanoparticles of the support, the film having thickness of 1 to 100 nm. In some embodiments, oligomeric chains of the stationary phase are covalently bonded to the individual nanoparticles.

公开(公告)号：US11286425B2

公开(公告)日：2022-03-29

申请号：US17423488

申请日：2020-07-10

Applicant: China University of Petroleum

Inventor： Dong Liu ,  Xin Gong ,  Bin Lou ,  Jun Li ,  Hui Du ,  Zhihao Li

IPC: B01D15/34 ,  B01D15/36 ,  B01J39/04 ,  B01J39/20 ,  B01J39/26 ,  B01J41/04 ,  B01J41/14 ,  B01J41/20 ,  C10B55/00 ,  C10B57/02 ,  C10G55/04 ,  H05B7/06

Abstract: A method for preparing needle coke for ultra-high power (UHP) electrodes from heavy oil is provided. In this method, heavy oil is used as a raw material. The size exclusion chromatography (SEC) is conducted with polystyrene (PS) as a packing material to separate out specific components with a relative molecular weight of 400 to 1,000. The ion-exchange chromatography (IEC) is conducted to remove acidic and alkaline components to obtain a neutral raw material. The neutral raw material is subjected to two-stage consecutive carbonization to obtain green coke, and the green coke is subjected to high-temperature calcination to obtain the needle coke for UHP electrodes. The needle coke has a true density of more than 2.13 g/cm3 and a coefficient of thermal expansion (CTE) of ≤1.15×10−6/° C. at 25° C. to 600° C.

公开(公告)号：US11220430B2

公开(公告)日：2022-01-11

申请号：US16476957

申请日：2018-02-21

Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.

Inventor： Kohei Shigeta ,  Yasuhiro Kushida ,  Tetsuya Yamamoto ,  Shinichiro Matsuura ,  Hidetoshi Ikeda

IPC: C01B15/013 ,  B01D3/14 ,  B01J39/04 ,  B01J41/04 ,  B01J47/04

Abstract: Provided are a method and system for efficiently producing a purified aqueous hydrogen peroxide solution having a high purity. This method for producing a purified aqueous hydrogen peroxide solution comprises: step A for vaporizing a raw material containing a crude aqueous hydrogen peroxide solution; step B for condensing at least a portion of the gas and liquid obtained in step A, and separating the gas and liquid into a gas phase and a liquid phase; and step C for returning, into the raw material, at least a portion of a separation liquid which is the separated liquid phase, wherein step C further includes step D for adjusting the concentration of hydrogen peroxide in the separation liquid.

公开(公告)号：US11014993B2

公开(公告)日：2021-05-25

申请号：US15229738

申请日：2016-08-05

Applicant: Douglas Fox

Inventor： Douglas Fox

IPC: C08B15/04 ,  B01J39/04 ,  C08L1/04 ,  C09D101/04 ,  B05D1/30

Abstract: The present application relates to cellulose nanocrystals and other anionic carbohydrates and methods of preparation thereof. Specifically, in certain embodiments, the cellulose nanocrystals are modified using ion exchange technology to yield thermally stable or task-specific, dispersible cellulose nanocrystals.

公开(公告)号：US10926253B2

公开(公告)日：2021-02-23

申请号：US15728694

申请日：2017-10-10

Applicant: AGC Inc.

Inventor： Takayuki Kaneko ,  Hiromitsu Kusano ,  Yasushi Yamaki ,  Takuo Nishio

IPC: B01J39/05 ,  B01J39/20 ,  B01J47/12 ,  C25B13/08 ,  D02G3/36 ,  D02G3/04 ,  B01J39/04 ,  C08J5/22 ,  C25B13/02 ,  C25B1/46 ,  C25B9/08

Abstract: To provide a process for producing an ion exchange membrane for electrolysis which has a low membrane resistance and which is capable of reducing the electrolysis voltage during the electrolysis, even if the membrane strength is increased, an ion exchange membrane for electrolysis, a precursor membrane of an ion exchange membrane for electrolysis, and an electrolysis apparatus.
In a fluorinated polymer having groups convertible to ion exchange groups, a reinforcing fabric 20A formed by weaving covered yarns 21 each comprising a reinforcing fabric 22 and a sacrificial material covering at least a portion of the outer peripheral surface of the reinforcing yarn 22, to produce a precursor membrane of an ion exchange membrane, and from the precursor membrane, at least a portion of the sacrificial material in the reinforcing fabric is eluted to form a reinforcing material and at the same time, the groups convertible to ion exchange groups are converted to ion exchange groups, to produce an ion exchange membrane for electrolysis.

公开(公告)号：US20210008499A1

公开(公告)日：2021-01-14

申请号：US16982275

申请日：2019-03-19

Applicant: ASTOM CORPORATION

Inventor： Minoru KAWASHIMA ,  Kenji FUKUTA

IPC: B01D61/44 ,  B01D67/00 ,  B01D69/14 ,  B01D69/02 ,  B01J47/12 ,  B01J39/04 ,  B01J39/18 ,  B01J41/04 ,  B01J41/12 ,  C08J5/22

Abstract: A bipolar membrane BP characterized in that particles 5 of a basic metal chloride are distributed in the interface between a cation-exchange membrane 1 and an anion-exchange membrane 3.

公开(公告)号：US20200339442A1

公开(公告)日：2020-10-29

申请号：US16759108

申请日：2018-10-24

Applicant: DDP SPECIALTY ELECTRONIC MATERIALS US, INC. ,  DDP SPECIALTY ELECTRONIC MATERIALS US 8, LLC

Inventor： Andrew M. Savo ,  Jay A. Miers ,  Donna Deflavis ,  William Carlin ,  Matthew J. Roth

IPC: C02F1/42 ,  C08F212/36 ,  C08F212/08 ,  B01J41/04 ,  B01J41/14 ,  B01J49/06 ,  B01J49/07 ,  B01J39/20 ,  B01J39/04

Abstract: Provided is a process for treating water, wherein the water comprises dissolved ions that comprise an undesired cation, wherein the processes comprises (a) providing a collection of specified polymeric beads wherein 90% or more of the beads by volume are uniform beads; (b) then passing the water through a bed of the collection of polymeric beads to exchange the undesired ion for ions (iv), (c) then passing a regeneration solution comprising dissolved ions (v) of the same species as ions (iv) through the bed of the collection of polymeric beads to exchange ions (v) for the undesired ions.