公开(公告)号：US20240198255A1

公开(公告)日：2024-06-20

申请号：US18067711

申请日：2022-12-18

Applicant: DIONEX CORPORATION

Inventor： John Edward Madden ,  Charanjit Saini ,  Yan Liu

IPC: B01D15/36 ,  B01J39/05

CPC classification number: B01D15/364 ,  B01J39/05

Abstract: A method comprising separating a plurality of arsenic species using a mixed mode column and a strong acid. The plurality of arsenic species includes at least one of each of an anionic arsenic species, a cationic arsenic species, a neutral arsenic species, and a zwitterionic arsenic species.

公开(公告)号：US11976374B2

公开(公告)日：2024-05-07

申请号：US17017337

申请日：2020-09-10

Applicant: MEGA UNION TECHNOLOGY INCORPORATED

Inventor： Kuo-Ching Lin ,  Yung-Cheng Chiang ,  Shr-Han Shiu ,  Wei-Rong Tey ,  Yu-Hsuan Li

IPC: C25C7/00 ,  B01J39/05 ,  B01J39/18 ,  B01J47/02 ,  C01G51/00 ,  C25C1/08

CPC classification number: C25C1/08 ,  B01J39/05 ,  B01J39/18 ,  B01J47/02 ,  C01G51/003

Abstract: A method and device of removing and recycling metals from a mixing acid solution, includes adsorbing a mixing acid solution with a pH value of −1 to 4 and a cobalt ion concentration of 100 to 1,000 mg/L by at least two cation resins in series setting to the cobalt ion concentration in the mixing acid solution is less than 10 mg/L, and then adjusting the pH value of the mixing acid solution after adsorption to meet a discharge standard, wherein the particle size of the at least two cation resins in series setting is 150˜1,200 μm. After the cation resins are saturated by adsorption, regenerating the cation resins by sulfuric acid to form a cobalt sulfate solution, and then electrolytically treating the cobalt sulfate solution to obtain electrolytic cobalt and sulfuric acid electrolyte. The operation process is simple without complicated equipment, and it can effectively recycle metals from mixing acid solutions. The cationic resin and sulfuric acid solution can also be reused, so the method of the present invention has environmental and economic benefits.

公开(公告)号：US11964876B2

公开(公告)日：2024-04-23

申请号：US17673624

申请日：2022-02-16

Applicant: Lilac Solutions, Inc.

Inventor： David Henry Snydacker ,  Amos Indranada ,  Alysia Lukito

IPC: C01D15/06 ,  B01J39/02 ,  B01J39/05 ,  B01J39/10 ,  B01J39/20 ,  B01J47/011 ,  B01J47/04 ,  B01J49/53

CPC classification number: C01D15/06 ,  B01J39/02 ,  B01J39/05 ,  B01J39/10 ,  B01J39/20 ,  B01J47/011 ,  B01J47/04 ,  B01J49/53

Abstract: The present invention relates to recovery of lithium from liquid resources to produce lithium solutions while limiting impurity precipitation in the lithium solutions.

公开(公告)号：US11931719B2

公开(公告)日：2024-03-19

申请号：US16959373

申请日：2019-01-07

Applicant: Puridify Ltd.

Inventor： Marc Hummersone ,  Benjamin Wallis ,  Frederic Leroux ,  William Howard Albert Law

IPC: B01D15/32 ,  B01D15/36 ,  B01J20/26 ,  B01J20/285 ,  B01J20/32 ,  B01J39/05 ,  B01J39/07 ,  B01J41/05 ,  B01J41/07

CPC classification number: B01J20/265 ,  B01D15/327 ,  B01D15/362 ,  B01D15/363 ,  B01J20/285 ,  B01J20/3274 ,  B01J39/05 ,  B01J39/07 ,  B01J41/05 ,  B01J41/07 ,  B01J2219/00844 ,  B01J2219/00846

Abstract: The invention discloses a functionalised chromatography medium, comprising: i) at least one non-woven layer (10) of polymeric nano fibres (20) comprising a plurality of nanofibre-nano fibre fusion points (30); ii) a grafted polymer coating covering the polymeric nanofibres and the nanofibre-nanofibre fusion points; iii) a plurality of ligand groups covalently bound to the grafted polymer coating, wherein the ligand groups are capable of interacting with a target biomolecule.

公开(公告)号：US20230391814A1

公开(公告)日：2023-12-07

申请号：US18032933

申请日：2021-10-29

Applicant: FrieslandCampina Nederland B.V.

Inventor： Alfred Willy Bonte ,  Franciscus Johannes Hubertus Jeurissen ,  Martina Henrica Maria Van Genuchten

IPC: C07H1/08 ,  C12P19/04 ,  B01D15/36 ,  B01D61/02 ,  B01J39/05 ,  B01J41/07 ,  B01J41/13

CPC classification number: C07H1/08 ,  C12P19/04 ,  B01D15/362 ,  B01D15/363 ,  B01D61/029 ,  B01J39/05 ,  B01J41/07 ,  B01J41/13

Abstract: The present invention relates to a process for the purification of an acidic human milk oligosaccharide (HMO) from a fermentation broth using ion exchange methods. This process allows for a reduction of the number and/or extent of desalting operations, such as electrodialysis. It is even possible to refrain from such operations.

公开(公告)号：US20230349058A1

公开(公告)日：2023-11-02

申请号：US18139518

申请日：2023-04-26

Applicant: ASAHI KASEI KABUSHIKI KAISHA

Inventor： Nao KAJIMOTO ,  Koji OKAMOTO

IPC: C25B13/08 ,  C25B13/02 ,  B01J47/127 ,  B01J39/20 ,  B01J39/05

CPC classification number: C25B13/08 ,  C25B13/02 ,  B01J47/127 ,  B01J39/20 ,  B01J39/05 ,  C25B1/46

Abstract: An ion exchange membrane containing: a layer S containing a fluorine-containing polymer having a sulfonic acid group; a layer C containing a fluorine-containing polymer having a carboxylic acid group; and—a plurality of reinforcing materials functioning as at least one of reinforcement yarn and sacrifice yarn; wherein, when the ion exchange membrane is viewed from a top surface, an average cross-sectional thickness A of the ion exchange membrane measured in pure water for a region, is μm or more and 75 μm or less, and wherein a strength change ratio calculated from strength S2 of the ion exchange membrane measured after the ion exchange membrane is subjected to a predetermined electrolysis test and strength S1 of the ion exchange membrane measured before the ion exchange membrane is subjected to the electrolysis test, in terms of 100×S2/S1, is 85% or more and 120% or less.

公开(公告)号：US11739277B2

公开(公告)日：2023-08-29

申请号：US17204732

申请日：2021-03-17

Applicant: Indian Oil Corporation Limited

Inventor： Saravanan Subramani ,  Vimal Kumar Upadhyay ,  Prosenjit Maji ,  Reshmi Manna ,  Vatsala Sugumaran ,  Mahalingam Vanamamalai ,  Madhusudan Sau ,  Gurpreet Singh Kapur ,  Sankara Sri Venkata Ramakumar

IPC: C10L3/10 ,  C10L3/12 ,  B01D3/14 ,  B01J39/05 ,  B01J39/19

CPC classification number: C10L3/12 ,  B01D3/14 ,  B01J39/05 ,  B01J39/19 ,  C10L3/103 ,  C10L2290/141 ,  C10L2290/543 ,  C10L2290/548

Abstract: Organic sulfur compounds which are generally present in the crude oil undergoes various transformations while processing the crude oil in the secondary processing units such as fluid catalytic cracker, hydrocracker, delayed coker, visbreaker, etc. The sulfur present in the feed which enters into these secondary processing units are distributed into various products coming out of the units. Sulfur compounds which are present in the various product fractions are removed to meet the desired specifications before routing to the final product pool. Conventionally, sulfur present in the LPG has been removed by amine treatment followed by caustic and water wash. The present invention relates to a process for removal of sulfur and other impurities from Liquefied Petroleum Gas (LPG) comprising olefins through reactive desulfurization route. The present invention is an eco-friendly process as it minimizes or eliminates the use of caustic which is conventionally used to remove the sulfur from LPG.

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：US20180244544A1

公开(公告)日：2018-08-30

申请号：US15757052

申请日：2016-09-14

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： J. Marcus Slagt ,  Alfred K. Schultz

IPC: C02F1/42 ,  B01J41/05 ,  B01J41/14 ,  B01J39/05 ,  B01J39/20 ,  B01J47/028 ,  B01J49/08 ,  B01J49/57

CPC classification number: C02F1/42 ,  B01J39/05 ,  B01J39/20 ,  B01J41/05 ,  B01J41/14 ,  B01J47/028 ,  B01J49/08 ,  B01J49/57 ,  C02F2001/422 ,  C02F2101/30 ,  C02F2303/16

Abstract: Provided is a method of purifying water comprising (a) providing an aqueous solution (A) that has pH of 5.5 or lower and that comprises (i) one or more dissolved organic compounds in an amount of 5 mg/L or more, measured as dissolved organic carbon, and (ii) 95% or more water by weight based on the weight of the aqueous solution (A), and (b) bringing the aqueous solution (A) into contact with a collection of particles of acrylic resin (B) that has calculated Hansch parameter of −1.0 to 2.5, and (c) then separating an aqueous solution (C) from the collection of particles of acrylic resin (B).

公开(公告)号：US10058858B2

公开(公告)日：2018-08-28

申请号：US15427362

申请日：2017-02-08

Applicant: Ecolab USA Inc.

Inventor： Terrence P. Everson ,  Li Wen ,  Lylien Tan ,  Peter Voss ,  Mark Toetschinger

IPC: A47L15/42 ,  B01J39/04 ,  B01J39/08 ,  B01J39/20 ,  B01J49/00 ,  C02F1/42 ,  D06F39/00 ,  B01J49/53 ,  B01J39/07 ,  B01J39/05 ,  B01J49/75 ,  B01J49/06

CPC classification number: B01J49/53 ,  A47L15/241 ,  A47L15/4217 ,  A47L15/4229 ,  B01J39/05 ,  B01J39/07 ,  B01J39/08 ,  B01J39/19 ,  B01J39/20 ,  B01J47/15 ,  B01J49/06 ,  B01J49/75 ,  B08B3/04 ,  B08B3/14 ,  C02F1/42 ,  C02F2001/425 ,  C02F2209/00 ,  C02F2209/005 ,  C02F2209/06 ,  C02F2303/16 ,  D06F39/007

Abstract: Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application using a treated, softened, acidic water source are disclosed. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins within a cleaning application, e.g. ware wash machine, are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications.