公开(公告)号：US20240360378A1

公开(公告)日：2024-10-31

申请号：US18683981

申请日：2021-08-18

Applicant: PHYTOCHEM PRODUCTS INC. ,  TOHOKU UNIVERSITY

Inventor： Kousuke HIROMORI ,  Naomi KITAKAWA ,  Makiko KATO ,  Tomokatsu OYANAGI

IPC: C11C3/00 ,  C11B11/00

CPC classification number: C11C3/003 ,  C11B11/00

Abstract: A method for producing a plant-derived solid paraffin and a plant-derived solid paraffin make it possible to reduce the production cost. An alcohol is added to a vegetable oil to obtain a fatty acid ester, and then a solid paraffin is obtained from the fatty acid ester. The fatty acid ester is preferably obtained in the presence of an acid catalyst or a base catalyst. After obtaining the fatty acid ester, the fatty acid ester is preferably cooled to precipitate a solid, followed by separation of the solid to obtain a solid paraffin. The solid paraffin obtained includes a saturated hydrocarbon(s) having an odd number(s) of carbon atoms of C21 to C29 in a proportion of not less than 60%.

公开(公告)号：US20240124986A1

公开(公告)日：2024-04-18

申请号：US18276314

申请日：2022-02-21

Applicant: TOHOKU UNIVERSITY

Inventor： Kousuke HIROMORI ,  Naomi KITAKAWA ,  Keisuke KATAGAMI

IPC: C25B1/16 ,  C01D1/04 ,  C02F1/461 ,  C11B3/06 ,  C25B9/19 ,  D21C3/02 ,  D21C11/04

CPC classification number: C25B1/16 ,  C01D1/04 ,  C02F1/46104 ,  C11B3/06 ,  C25B9/19 ,  D21C3/02 ,  D21C11/04 ,  C02F2103/322 ,  C02F2201/46115

Abstract: A method for producing an alkali metal/alkaline earth metal hydroxide includes: subjecting a solution containing RA—COOMB and/or (RA—COO)2MC and water to an electrochemical reaction to cause a Kolbe electrolysis reaction at an anode to generate at least RA—RA, carbon dioxide, and an MB+ ion and/or MC2+ ion; and neutralizing the MB+ ion and/or MC2+ ion by using an OH− ion generated by electrolysis of water at a cathode. RA represents a hydrocarbon group, MB represents an alkali metal, and MC represents an alkaline earth metal.

公开(公告)号：US20210276938A1

公开(公告)日：2021-09-09

申请号：US17261211

申请日：2019-08-09

Applicant: TOHOKU UNIVERSITY

Inventor： Naomi KITAKAWA ,  Kousuke HIROMORI ,  Kazuki MURAKAMI ,  Tomoya WATANABE

IPC: C07C67/08

Abstract: A method for producing a polyvalent alcohol ester compound, characterized in that a polyvalent alcohol compound and a carboxylic acid compound are allowed to react in the presence of an acidic solid catalyst swollen with the polyvalent alcohol compound or the carboxylic acid compound without using a solvent to selectively produce a monocarboxylic acid ester or a polycarboxylic acid ester of a polyvalent alcohol. In this manner, a mono-fatty acid ester and a poly-fatty acid ester (e.g., di-fatty acid ester) of a polyvalent alcohol can be selectively and effectively produced from a polyvalent alcohol compound and a fatty acid compound.

公开(公告)号：US20240199954A1

公开(公告)日：2024-06-20

申请号：US18287162

申请日：2022-02-21

Applicant: TOHOKU UNIVERSITY

Inventor： Atsushi TAKAHASHI ,  Suguru KATORI ,  Kousuke HIROMORI ,  Naomi KITAKAWA

IPC: C09K15/18

CPC classification number: C09K15/18

Abstract: An oxidation inhibitor which contains a polyalkylene imine compound as an active ingredient; an oxidation inhibitory activity enhancing agent which contains a polyalkylene imine compound as an active ingredient; an oxidation inhibition method which includes making a polyalkylene imine compound and an oxidation inhibiting substance coexist in an oxidation inhibition object; and a method for enhancing oxidation inhibitory activity of an oxidation inhibiting substance, which includes making a polyalkylene imine compound and an oxidation inhibiting substance coexist.

公开(公告)号：US20230167147A1

公开(公告)日：2023-06-01

申请号：US17927616

申请日：2021-05-28

Applicant: TOHOKU UNIVERSITY

Inventor： Kousuke HIROMORI ,  Naoki MAEDA ,  Tomone SASAYAMA ,  Naomi KITAKAWA

IPC: C07H7/02 ,  C07H1/00 ,  B01J39/05

CPC classification number: C07H7/02 ,  C07H1/00 ,  B01J39/05

Abstract: Provided is a method of producing an aliphatic glycoside compound or a sugar fatty acid ester compound by subjecting an intramolecularly dehydrated sugar and an alcohol or carboxylic acid compound of an aliphatic hydrocarbon to an addition reaction in the presence of an acid catalyst.

公开(公告)号：US20200002305A1

公开(公告)日：2020-01-02

申请号：US16485602

申请日：2018-02-16

Applicant: TOHOKU UNIVERSITY

Inventor： Naomi KITAKAWA ,  Kousuke HIROMORI ,  Sayaka HOSOKAWA ,  Tomoya WATANABE

IPC: C07D311/72 ,  C11C3/00 ,  B01J41/05 ,  B01D15/36 ,  B01D15/42 ,  B01D15/18

Abstract: A vitamin E production method and a vitamin E production device which can highly purify vitamin E in a vitamin E concentrated fraction are provided. A raw oil supply section supplies a raw oil to a series column in which two or more columns including a strongly basic anion exchanger are coupled in series to adsorb vitamin E included in the raw oil on the strongly basic anion exchanger of at least one column from among the series column. A desorption solution supply section supplies a desorption solution to a column on which vitamin E has been adsorbed to desorb vitamin E from the strongly basic anion exchanger of the column.

公开(公告)号：US20170334875A1

公开(公告)日：2017-11-23

申请号：US15258111

申请日：2016-09-07

Applicant: TOHOKU UNIVERSITY

Inventor： Naomi SHIBASAKI-KITAKAWA ,  Kousuke HIROMORI ,  Kousei KANUMA ,  Tomone SASAYAMA

IPC: C07D311/72 ,  B01D15/36

CPC classification number: C07D311/72 ,  B01D15/362 ,  B01D15/363

Abstract: A method is provided for manufacturing high-purity vitamin E compounds by selectively separating vitamin E compounds such as tocotrienols and tocopherols from oil raw materials such as deodorized distillate, and more specifically, a method is provided, applying to a rich fraction of vitamin E compounds, for obtaining high-purity vitamin E compounds by separating and removing only free fatty acids contained as impurities. The method comprises a process in which a solution containing vitamin E compounds and free fatty acids is placed in contact with a weakly basic anion exchanger, and the free fatty acids are preferentially adsorbed.