公开(公告)号：US11452999B2

公开(公告)日：2022-09-27

申请号：US16897994

申请日：2020-06-10

Applicant: Bayer AS

Inventor： Dimitrios Mantzilas ,  Jan Roger Karlson ,  Judit Tjelmeland Østby

IPC: B01J41/05 ,  B01J39/05 ,  B01D15/18 ,  B01D15/36 ,  G21G1/00 ,  B01J49/60 ,  A61K51/00

Abstract: The present invention comprises a method for the generation of 227Th of pharmaceutically tolerable purity comprising i) preparing a generator mixture comprising 227Ac, 227Th and 223Ra; ii) loading said generator mixture onto a strong base anion exchange resin; iii) eluting a mixture of said 223Ra and 227Ac from said strong base anion exchange resin using a first mineral acid in an aqueous solution; iv) eluting 227Th from said strong base anion exchange resin using a second mineral acid in an aqueous solution whereby to generate a first 227Th solution containing contaminant 223Ra and 227Ac; v) loading the first 227Th solution onto a strong acid cation exchange resin; vi) eluting at least a part of the contaminant 223Ra and 227Ac from said strong acid cation exchange resin using a third mineral acid in aqueous solution; and vii) eluting the 227Th from said strong acid cation exchange resin using a first aqueous buffer solution to provide a second 227Th solution. Purified thorium-227 of pharmaceutical purity and a pharmaceutical composition comprising the same are also provided.

公开(公告)号：US20220184595A1

公开(公告)日：2022-06-16

申请号：US17543362

申请日：2021-12-06

Applicant: ENTEGRIS, INC.

Inventor： James Hamzik ,  Jad Ali Jaber

IPC: B01J39/05 ,  B01J47/12 ,  B01D69/02 ,  B01D71/26 ,  B01D71/32

Abstract: This disclosure provides certain strong cation-modified ion exchange resins and membranes useful for carrying out the removal of metal and metal ion contaminants in fluid compositions. Filtered liquid compositions with significantly reduced amounts of metals can be used in a microelectronic manufacturing process, such as liquids for removing photoresist. The cation-modified ion exchange resins and membranes of the disclosure can be configured for use in a microelectronic manufacturing system, which can be utilized in the system as a point of use metal-removal feature for liquids entering the system. Advantageously, the filter materials and methods of this disclosure showed considerable improvement in preventing degradation and the formation of color bodies and dimeric and oligomeric materials from ketones (e.g., cyclohexanone) in the liquid compositions while not compromising the filter material's ability to remove undesired metal ions.

公开(公告)号：US11325836B2

公开(公告)日：2022-05-10

申请号：US17364530

申请日：2021-06-30

Applicant: Lilac Solutions, Inc.

Inventor： David Henry Snydacker ,  Amos Indranada ,  Alysia Lukito

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

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：US11266934B2

公开(公告)日：2022-03-08

申请号：US16615426

申请日：2018-06-27

Applicant: Daikin Industries, LTD.

Inventor： Shouji Itakura ,  Ryou Hatayama ,  Mihoko Ohashi ,  Michinobu Koizumi

IPC: B01D37/02 ,  B01J47/014 ,  B01D61/02 ,  B01D61/04 ,  B01D61/14 ,  B01D61/16 ,  B01J20/14 ,  B01J20/20 ,  B01J20/28 ,  B01J41/12 ,  B01J47/02 ,  C02F9/00 ,  C08F20/04 ,  B01J39/07 ,  B01J20/10 ,  C02F1/28 ,  C02F1/42 ,  C02F1/44 ,  B01J41/05 ,  B01J39/05 ,  C02F101/30 ,  C02F103/38

Abstract: A method for treating an aqueous fluid resulting from a fluorine-containing polymer production step, the method comprising: separating the aqueous fluid into a solid component and a filtrate using a filter aid.

公开(公告)号：US20220002891A1

公开(公告)日：2022-01-06

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

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：US20210346881A1

公开(公告)日：2021-11-11

申请号：US17277872

申请日：2019-09-04

Applicant: Fujifilm Manufacturing Europe B.V.

Inventor： Yujiro Itami ,  Berry Bogels

IPC: B01J47/12 ,  C08J5/22 ,  C08F222/38 ,  B01J39/20 ,  B01J39/05 ,  B01D67/00 ,  B01D69/02 ,  B01D69/10

Abstract: Membranes having an average pore size of 5 nm to 5,000 nm and a porosity of 10% or more, said membrane being obtainable by a process comprising curing a composition comprising: (i) a cross-linking agent comprising at least one anionic group; and (ii) inert solvent(s). The membranes are useful for detecting metal ions and for filtering and/or purifying biomolecules and compositions comprising metal-ions.

公开(公告)号：US20210272711A1

公开(公告)日：2021-09-02

申请号：US16772352

申请日：2018-12-14

Applicant: Electricite de France

Inventor： Christophe Bourgeois ,  Estelle Rioury

IPC: G21C19/30 ,  B01J39/05 ,  B01J41/07 ,  B01J47/022 ,  B01J49/07 ,  B01J49/06 ,  B01J49/53 ,  B01J49/57 ,  G21C17/022

Abstract: The present invention relates to a method for identifying the unit causing a raw water leak in a condenser of a thermal power plant consisting of n units.

公开(公告)号：US20210230022A1

公开(公告)日：2021-07-29

申请号：US17053479

申请日：2019-05-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mitsuaki Kobayashi ,  Hideyuki Okada ,  Yukihisa Okada ,  Takaaki Shirai

IPC: C02F1/42 ,  B01D39/16 ,  B01J39/05 ,  B01J45/00 ,  B01J47/026 ,  B01J47/04 ,  B01J47/018

Abstract: To provide a filter capable of efficiently removing metal ions in a treatment liquid, and capable of easily obtaining a solution having an extremely low metal ion content. A depth filter includes a porous molded article. The porous molded article is a sintered material of mixed powder or a swollen material of the sintered material. The mixed powder contains dried gel powder and thermoplastic resin powder. The dried gel powder contains an ion exchange resin including a sulfonic acid group, and a nitrogen-containing chelating resin.

公开(公告)号：US20210187492A1

公开(公告)日：2021-06-24

申请号：US17248839

申请日：2021-02-10

Applicant: II-VI Delaware, Inc

Inventor： Wen-Qing Xu ,  Vincent D. Mattera, JR. ,  Marie Ysabel Abella ,  Gomer M. Abrenica ,  Shailesh Patkar

IPC: B01J39/05 ,  C22B59/00 ,  B01J49/06 ,  C22B3/38 ,  B01J39/16 ,  B01J49/53 ,  B01J20/32 ,  B01J20/22 ,  C01F17/10 ,  B01J47/016 ,  B01J47/011 ,  B01J39/18 ,  B01J47/02 ,  C22B3/42

Abstract: A composite extractant-enhanced polymer resin comprising an extractant and a polymer resin for direct extraction of valuable metals such as rare earth metals, and more specifically, scandium, front an acid-leaching slurry and/or acid-leaching solution in which ferric ions are not required to be reduced into ferrous ions. The extractant may be cationic, non-ionic, or anionic. More specifically, the extractant di(2-ethylhexyl)phosphoric acid may be used. The polymer resin may be non-functional or have functional groups of sulfonic acid, carboxylic acid, iminodiacetic acid, phosphoric acid, or amines. The composite extractant-enhanced polymer resin may be used for extraction of ran earth metals from acid-leaching slurries or solutions.

公开(公告)号：US10975491B2

公开(公告)日：2021-04-13

申请号：US16874314

申请日：2020-05-14

Applicant: DRYLYTE, S.L.

Inventor： Pau Sarsanedas Millet

IPC: C25F3/16 ,  B01J39/05 ,  B01J39/20 ,  C09G1/02 ,  C25F3/24

Abstract: The disclosure relates to the use of H2SO4 as an electrolyte in processes for polishing metals, specifically metal parts, for example in jewellery. According to some embodiments the polishing is carried out based on ion transport with electrically conductive free solids in a gaseous environment. According to some embodiments the solids comprise spherical particles with porosity and affinity for retaining the electrolyte so that they have appreciable electric conductivity.