公开(公告)号：US11925914B2

公开(公告)日：2024-03-12

申请号：US17196357

申请日：2021-03-09

Applicant: Kemira Oyj

Inventor： Patricia Aubeuf-Prieur ,  Iris Porat ,  Marco Stammegna ,  Sampsa Greus

IPC: B01J14/00 ,  B01J19/00 ,  B01J19/24 ,  B01J27/02 ,  C07C407/00 ,  C07C409/24

CPC classification number: B01J19/0033 ,  B01J14/00 ,  B01J19/0013 ,  B01J19/245 ,  B01J27/02 ,  C07C407/00 ,  C07C409/24 ,  B01J2219/0004 ,  B01J2219/00099 ,  B01J2219/00195 ,  B01J2219/00229 ,  B01J2219/00236

Abstract: Systems for producing performic acid and methods for producing performic acid. The systems may include two or more reactor units, two or more servient programmable logic controllers, a control panel, and a master programmable logic controller. The system may modify the production of performic acid in at least one of the two or more reactor units upon and/or after the occurrence of a disruptive event in order to maintain a desired level of performic acid production and/or a desired level of disinfection.

公开(公告)号：US20220402858A1

公开(公告)日：2022-12-22

申请号：US17783848

申请日：2020-12-02

Applicant: SEIKA CORPORATION

Inventor： Takahiko Tatsumi ,  Motonori Takeda ,  Kazuhide Nishiyama ,  Shinichi Kitahara

IPC: C07C209/54 ,  B01J27/02

Abstract: The object of the present invention is to provide a method which provides a diaminobiphenyl compound in a high yield and in a short period of time by a benzidine rearrangement reaction of a hydrazobenzene having a bulky substituent group at the meta position. Specifically, the present invention provides a method for preparing a diaminobiphenyl compound represented by the following formula (1): wherein, X1 and X2 are, independently of each other, a group selected from the group consisting of a trifluoromethyl group and, optionally fluorinated, isopropyl, isobutyl, sec-butyl, tert-butyl and neopentyl groups, comprising a step of subjecting a diphenylhydrazine compound represented by the following formula (2) wherein X1 and X2 are as defined above, to a benzidine rearrangement reaction in the presence of an organic solvent and an inorganic acid at a temperature of from −70° C. to −11° C. to obtain the diaminobiphenyl compound represented by the formula (1).

公开(公告)号：US20220395818A1

公开(公告)日：2022-12-15

申请号：US17622262

申请日：2021-05-20

Applicant: ZHEJIANG UNIVERSITY

Inventor： Shurong WANG ,  Shanshan XIONG ,  Hao XU ,  Lingjun ZHU ,  Yunchao LI

IPC: B01J27/02 ,  B01J37/04 ,  B01J37/08 ,  B01J37/06 ,  B01J37/00 ,  C07D307/36

Abstract: A carbon-based solid acid catalyst, a preparation method of the catalyst, and a method to use the catalyst for hydrothermal conversion of biomass are provided. The preparation method of the carbon-based solid acid catalyst includes the following steps: S1. mixing pectin with water, adding concentrated sulfuric acid for activation, and adding a resulting mixture to an ionic resin with an aromatic ring matrix; S2. drying a material obtained in S1, crushing a dried material into a powder, and subjecting the powder to pyrolysis in a dry inert gas; S3. subjecting a solid obtained after the pyrolysis to sulfonation with concentrated sulfuric acid; S4. diluting a material obtained in S3 with water, filtering a resulting mixture, and washing a resulting filter residue with water until no sulfate ions are detected in washing water; S5. drying the filter residue.

公开(公告)号：US11512002B2

公开(公告)日：2022-11-29

申请号：US16388725

申请日：2019-04-18

Applicant: University of Virginia Patent Foundation

Inventor： Jong Ho Sonn ,  Pamela M. Norris

IPC: C01B33/155 ,  C01B33/16 ,  C01B33/158 ,  B01J31/02 ,  B01J27/02 ,  B01J27/24

Abstract: Disclosed herein are methods for the preparation of porous metal oxide materials, including metal oxide xerogels and metal oxide aerogels. Methods for preparing porous metal oxide materials can comprise (i) reacting a metal alkoxide with water in the presence of a catalyst system to form a partially hydrolyzed sol, (ii) contacting the partially hydrolyzed sol with a base catalyst and a non-aqueous solvent to form a precursor gel; and (iii) drying the precursor gel to form the porous metal oxide material. The catalyst system employed in step (i) comprises a combination of a weak acid and a strong acid.

公开(公告)号：US20220250041A1

公开(公告)日：2022-08-11

申请号：US17631094

申请日：2020-07-16

Applicant: IFP Energies nouvelles

Inventor： Anne-Claire DUBREUIL ,  Vincent COUPARD ,  Malika BOUALLEG

IPC: B01J23/755 ,  B01J21/04 ,  B01J37/00 ,  B01J37/08 ,  B01J37/10 ,  B01J37/02 ,  B01J27/02 ,  B01J35/02 ,  C07C5/05 ,  C07C5/09 ,  C07C5/11 ,  C10G45/36

Abstract: Catalyst comprising nickel and sulfur on an alumina support, said catalyst being characterized in that: the nickel is distributed both on a crust at the periphery of the support, and in the core of the support, the thickness of said crust being between 2% and 15% of the diameter of the catalyst; the nickel density ratio between the crust and the core is strictly greater than 3; said crust comprises more than 25% by weight of nickel element relative to the total weight of nickel contained in the catalyst, the size of the nickel particles in the catalyst, measured in oxide form, is between 7 and 25 nm.

公开(公告)号：US20220081616A1

公开(公告)日：2022-03-17

申请号：US17466531

申请日：2021-09-03

Applicant: Fujifilm Electronic Materials U.S.A., Inc.

Inventor： Mick Bjelopavlic ,  Carl Ballesteros

IPC: C09K13/08 ,  C09K13/06 ,  H01L21/02 ,  B01J27/02 ,  B01J27/16

Abstract: The present disclosure is directed to etching compositions that are useful for, e.g., selectively removing silicon germanium (SiGe) from a semiconductor substrate as an intermediate step in a multistep semiconductor manufacturing process.

公开(公告)号：US20210275984A1

公开(公告)日：2021-09-09

申请号：US17196357

申请日：2021-03-09

Applicant: Kemira Oyj

Inventor： Patricia Aubeuf-Prieur ,  Iris Porat ,  Marco Stammegna ,  Sampsa Greus

IPC: B01J19/00 ,  B01J14/00 ,  B01J19/24 ,  B01J27/02 ,  C07C407/00

Abstract: Systems for producing performic acid and methods for producing performic acid. The systems may include two or more reactor units, two or more servient programmable logic controllers, a control panel, and a master programmable logic controller. The system may modify the production of performic acid in at least one of the two or more reactor units upon and/or after the occurrence of a disruptive event in order to maintain a desired level of performic acid production and/or a desired level of disinfection.

公开(公告)号：US11104625B1

公开(公告)日：2021-08-31

申请号：US16877992

申请日：2020-05-19

Applicant: Bio2Electric, LLC

Inventor： John A. Sofranko

IPC: B01J27/053 ,  C07C5/48 ,  C07C5/46 ,  C07C11/04 ,  C07C11/06 ,  B01J37/28 ,  B01J37/04 ,  B01J37/02 ,  B01J35/00 ,  B01J37/00 ,  B01J37/08 ,  B01J27/055 ,  B01J27/02

Abstract: The oxidative coupling of methane (OCM) and the oxidative dehydrogenation (ODH) of ethane and higher hydrocarbons is described using SO3 and sulfate, sulfite, bisulfite and metabifulfite salts as oxygen transfer agents in the presence of one or more elements selected from Groups 3 to 14 of the periodic table, optionally further in the presence of alkali or alkaline salts and/or sulfur-containing compounds.

公开(公告)号：US10882034B2

公开(公告)日：2021-01-05

申请号：US16385116

申请日：2019-04-16

Applicant: The Procter & Gamble Company

Inventor： Jakob Albert ,  Peter Wasserscheid ,  Nicola Taccardi ,  Jens Nagengast ,  Matthias Kehrer ,  Julian Kadar ,  Dimitris Ioannis Collias

IPC: B01J31/02 ,  B01J27/122 ,  B01J27/125 ,  B01J27/138 ,  B01J31/26 ,  B01J27/02 ,  B01J27/06 ,  B01J27/16 ,  B01J31/04

Abstract: Catalysts for the dehydration of lactic acid, lactic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof in liquid phase comprising an ionic liquid (IL) and an acid are provided.

公开(公告)号：US10800691B2

公开(公告)日：2020-10-13

申请号：US15309593

申请日：2015-05-06

Applicant: Hindustan Petroleum Corporation Ltd

Inventor： Ramesh Kanaparthi ,  Peddy Venkat Chalapathi Rao ,  Nettem Choudary Venkateswarlu ,  Sriganesh Gandham

IPC: B01J23/00 ,  B01J23/72 ,  B01J23/75 ,  B01J27/02 ,  B01J29/14 ,  C02F1/66 ,  C02F1/72 ,  C02F11/08 ,  C02F101/10 ,  C02F103/36

Abstract: The present subject matter relates to the development of active catalyst composite based on supported transition metal oxides, especially, Cu, Co that are effective in the removal sulfides in the diluted spent caustic. The process for the reduction of sulfides in spent caustic comprises of reacting various organic and inorganic sulfides with molecular oxygen in the presence of active catalyst at various reaction temperatures ranging ambient to 200° C. and pressures between atmospheric pressure to 60 bars. The process also relates to complete scheme for the removal of sulfides in spent caustic.