公开(公告)号：US20240300880A1

公开(公告)日：2024-09-12

申请号：US18261475

申请日：2022-01-19

申请人： TRIPLEW LTD.

发明人： Tsvika Greener ,  Nitsan Papo ,  Assaf Harnoy

IPC分类号： C07C51/02 ,  C07C51/43 ,  C07C59/08 ,  C12P7/56

CPC分类号： C07C51/02 ,  C07C51/43 ,  C07C59/08 ,  C12P7/56 ,  C07B2200/13

摘要： A process for the formation of high-purity magnesium L-lactate crystals from homogenous and heterogenous decomposed organic waste is provided. The process provides magnesium L-lactate crystals with improved enantiomeric purity and overall purity which are particularly suitable for reuse in the production of new polylactic acid.

公开(公告)号：US20240252951A1

公开(公告)日：2024-08-01

申请号：US18566207

申请日：2022-05-31

申请人： NIPPON SHOKUBAI CO., LTD.

发明人： Toshiya FUKUMOTO ,  Masashi MUKAE ,  Takayuki MATSUDA

IPC分类号： B01D9/02 ,  C07C51/43

CPC分类号： B01D9/02 ,  C07C51/43

摘要： Provided is a method for stably obtaining a product. The present invention relates to a purification apparatus for purifying a compound, the purification apparatus including: a tank for use in the purification apparatus; and a hydraulic wash column, the tank being at least one of a crystallization tank that forms a slurry containing crystals of a compound or a ripening tank that is capable of keeping crystals of a compound suspended in the ripening tank, the tank including an agitator having an agitator shaft and a bearing, the purification apparatus further including:



a line for discharging the slurry containing crystals of a compound from the tank and feeding the slurry to the hydraulic wash column; and a line for flowing between the agitator shaft and the bearing in the tank at least one of a mother liquor derived from the slurry fed to the hydraulic wash column, the slurry containing crystals of a compound, or a melt obtained by melting the crystals.

公开(公告)号：US20240083833A1

公开(公告)日：2024-03-14

申请号：US18549762

申请日：2022-03-04

申请人： Rittec Umwelttechnik GmbH

发明人： Clemens Müller ,  Esther Brepohl ,  Lars Biermann ,  Carsten Eichert ,  Stephan Scholl

IPC分类号： C07C51/347 ,  C07C51/43

CPC分类号： C07C51/347 ,  C07C51/43

摘要： The present invention relates to a process for extracting aromatic dicarboxylic acids from an outlet stream of a basic depolymerization of polycondensates containing metal carboxylates of the aromatic dicarboxylic acid to be extracted, wherein a mineral or organic acid is added to this outlet stream, the pKs value of which acid being greater than or equal to that of the aromatic dicarboxylic acid, on which the polycondensate is based.

公开(公告)号：US11802118B2

公开(公告)日：2023-10-31

申请号：US17617341

申请日：2020-06-12

申请人： Nectar Health Sciences Inc.

发明人： Tony Durst ,  Jay Van Der Vlugt ,  Amanda Saikaley

IPC分类号： C07D311/80 ,  C07C211/63 ,  C07C215/40 ,  C07D453/04 ,  C07D487/04 ,  C07D487/08 ,  C07C51/43 ,  C07C65/19

CPC分类号： C07D311/80 ,  C07C51/43 ,  C07C65/19 ,  C07C211/63 ,  C07C215/40 ,  C07D453/04 ,  C07D487/04 ,  C07D487/08 ,  C07D311/80 ,  C07B63/00 ,  C07D311/80 ,  C07B63/02

摘要： Disclosed are methods for separating, recovering, and purifying cannabidiolic acid (CBDA) salts from an organic solvent solution comprising a mixture of cannabinoids. The methods comprise solubilizing the mixture of cannabinoids in C5-C7 hydrocarbon solvents, adding thereto a selected amine to thereby precipitate a CBDA-amine salt therefrom, dissolving the recovered CBDA-amine salt in a selected solvent and then adding thereto a selected antisolvent to thereby recrystallizing a purified CBDA-amine salt therefrom. The recrystallized CBDA-amine salt may be decarboxylated to form a mixture of cannabidiol (CBD) and amine. The CBD amine mixture may be acidified to separate the amine from CBD. The recovered CBD may be concentrated to produce a highly purified CBD. Also disclosed are CBDA-amine salts produced with certain amines selected from groups of secondary amines, tertiary amines, diamines, amino alcohols, amino ethers, and highly basic amines.

公开(公告)号：US11773047B2

公开(公告)日：2023-10-03

申请号：US17273314

申请日：2019-09-05

申请人： Huanwen Rao

发明人： Huanwen Rao

IPC分类号： C07C51/43 ,  C07C51/50 ,  C07C51/41 ,  C07B63/04

CPC分类号： C07C51/43 ,  C07C51/412 ,  C07C51/50 ,  C07B63/04 ,  C07B2200/09

摘要： A method for separating trans isomer crocetin from cis isomer crocetin is provided. The method comprises crystallizing all-trans crocetin with calcium ions first by using different binding capabilities between cis and trans isomeric crocetin to calcium ions and acidifying the all-trans crocetin to obtain 13-cis crocetin.

公开(公告)号：US20230295074A1

公开(公告)日：2023-09-21

申请号：US18304403

申请日：2023-04-21

申请人： ANHUI JINHE INDUSTRIAL CO., LTD.

发明人： Jingang ZHAO ,  Jian Shi ,  Yongle Chen

IPC分类号： C07C231/24 ,  C07C51/43

CPC分类号： C07C231/24 ,  C07C51/43

摘要： The invention provides a DMF recycling method, the method comprises: neutralization step, extraction and crystallization step, layering step, evaporation step; a condensate obtained by evaporation of the upper layer liquid phase is recycled into the anti-solvent, a concentrated solution obtained by evaporation of the upper layer liquid phase and a condensate obtained by evaporation of the lower layer liquid phase are mixed to obtain a crude DMF solution for recycling of DMF. The recycling method overcomes the problem that acetic acid in the stock solution corrodes the equipment and produces impurities, so as to improve the recycling purity and reduce the equipment cost.

公开(公告)号：US20190231736A1

公开(公告)日：2019-08-01

申请号：US15929099

申请日：2019-01-31

申请人： Deep Cell Industries, Inc.

发明人： James Gerstenberger ,  Kelly Ogilvie

IPC分类号： A61K31/352 ,  A61K9/16 ,  B01D9/00 ,  B01D11/02 ,  B01D21/00 ,  C07C51/43

CPC分类号： A61K31/352 ,  A61K9/1652 ,  B01D9/0009 ,  B01D11/0288 ,  B01D11/0292 ,  B01D21/009 ,  C07C51/43

摘要： A method of generating an oligosaccharide encapsulated cannabidiol (CBD) formulation includes forming a cannabidiol ethanol mixture comprising ethanol and cannabidiol, forming an oligosaccharide CBD slurry by mixing the oligosaccharide with the cannabidiol ethanol mixture. The slurry is heated and mixed in a pressurized chamber to form a colloidal mixture, which is distributed into a tray as a layer. A cover is added to the tray to form an evaporation vessel, which is heated in a heating chamber. A rapid cooling process is performed on the colloidal mixture layer by removing the cover and spraying pulverized dry ice on the layer. The rapid cooling process is repeated until crystal formation is detected within the layer, the crystals including oligosaccharide encapsulated cannabidiol. An oligosaccharide encapsulated cannabidiol formulation includes cannabidiol and at least one oligosaccharide in a ratio in the range between about 1000:1 to 2200:1 (w/w) of CBD.

公开(公告)号：US20190202768A1

公开(公告)日：2019-07-04

申请号：US16306178

申请日：2017-06-05

申请人： NOVAMONT S.P.A.

发明人： Luigi CAPUZZI ,  Francesca DIGIOIA

IPC分类号： C07C51/44 ,  C07C51/09 ,  C07C67/31 ,  C07C67/333

CPC分类号： C07C51/44 ,  C07C51/09 ,  C07C51/43 ,  C07C55/18 ,  C07C67/31 ,  C07C67/333 ,  C07C69/48 ,  C07C69/675

摘要： This invention relates to a process for the purification of dicarboxylic acids obtained from the hydrolysis of carboxylic acid triglycerides having more than one acid functional group. The process comprises in particular the separation of at least some of the glycerine from the hydrolysis product in an aqueous phase, evaporating and/or distilling the resultant organic phase and recovering at least some of the evaporated and/or distilled dicarboxylic acids through at least one crystallisation operation.

公开(公告)号：US20190169109A1

公开(公告)日：2019-06-06

申请号：US16088226

申请日：2017-03-07

申请人： Mitsubishi Gas Chemical Company, Inc.

发明人： Goh NAKAMURA ,  Hideaki FUJITA ,  Kotaro MURAKAMI ,  Ryusuke SHIGEMATSU

IPC分类号： C07C51/47 ,  C07C63/26

CPC分类号： C07C51/47 ,  C07B2200/13 ,  C07C51/43 ,  C07C63/26

摘要： A method of terephthalic acid production in which slurry of crude terephthalic acid obtained through liquid-phase oxidation of a p-phenylene compound or a terephthalic acid slurry resulting from catalytic hydrogenation of the crude terephthalic acid is introduced into an upper part of a dispersion medium replacement tower while a second dispersion medium for replacement is introduced from a lower part of the dispersion medium replacement tower to perform dispersion medium replacement. The method is capable of enabling the dispersion medium replacement tower to continue stable operation while maintaining an extremely high efficiency of dispersion medium replacement.

公开(公告)号：US20190010116A1

公开(公告)日：2019-01-10

申请号：US15645899

申请日：2017-07-10

申请人： VITAWORKS IP, LLC

发明人： Songzhou HU

IPC分类号： C07C227/42 ,  C07C227/40 ,  C07C51/44 ,  C07C51/43 ,  C07C209/86

CPC分类号： C07C227/42 ,  B01D3/36 ,  B01D9/0004 ,  B01D9/0018 ,  B01D9/0059 ,  B01D11/0488 ,  B01D11/0492 ,  B01D21/262 ,  C07C51/43 ,  C07C51/44 ,  C07C51/46 ,  C07C51/47 ,  C07C51/48 ,  C07C209/86 ,  C07C227/40 ,  C07C229/08 ,  C07C211/03 ,  C07C55/21 ,  C07C53/126

摘要： There is disclosed a process for the separation of long chain amino acid and long chain dibasic acid, comprising: (1) cooling the hydrolysis solution to crystallize and separate alkali salt of long chain dibasic acid to provide an aqueous solvent solution; (2) distilling the aqueous solvent solution of step (1) to recover the solvent and to recover alkylamine; (3) cooling the residual solution of step (2) to precipitate and separate alkali salt of long chain amino acid to provide a mother liquor; (4) adding an acid to the mother liquor of step (3) to yield alkanoic acid; (5) adding an acid to an aqueous solution of the alkali salt of long chain dibasic acid of step (1) to obtain long chain dibasic acid; and (6) neutralizing the alkali salt of long chain amino acid of step (3) with an acid to obtain long chain amino acid.