公开(公告)号：US20240300880A1

公开(公告)日：2024-09-12

申请号：US18261475

申请日：2022-01-19

Applicant: TRIPLEW LTD.

Inventor： Tsvika Greener ,  Nitsan Papo ,  Assaf Harnoy

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

CPC classification number: C07C51/02 ,  C07C51/43 ,  C07C59/08 ,  C12P7/56 ,  C07B2200/13

Abstract: 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

Applicant: NIPPON SHOKUBAI CO., LTD.

Inventor： Toshiya FUKUMOTO ,  Masashi MUKAE ,  Takayuki MATSUDA

IPC: B01D9/02 ,  C07C51/43

CPC classification number: B01D9/02 ,  C07C51/43

Abstract: 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

Applicant: Rittec Umwelttechnik GmbH

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

IPC: C07C51/347 ,  C07C51/43

CPC classification number: C07C51/347 ,  C07C51/43

Abstract: 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

Applicant: Nectar Health Sciences Inc.

Inventor： Tony Durst ,  Jay Van Der Vlugt ,  Amanda Saikaley

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

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

Abstract: 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

Applicant: Huanwen Rao

Inventor： Huanwen Rao

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

CPC classification number: C07C51/43 ,  C07C51/412 ,  C07C51/50 ,  C07B63/04 ,  C07B2200/09

Abstract: 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

Applicant: ANHUI JINHE INDUSTRIAL CO., LTD.

Inventor： Jingang ZHAO ,  Jian Shi ,  Yongle Chen

IPC: C07C231/24 ,  C07C51/43

CPC classification number: C07C231/24 ,  C07C51/43

Abstract: 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：US20220356141A1

公开(公告)日：2022-11-10

申请号：US17620523

申请日：2020-07-01

Applicant: KAO CORPORATION

Inventor： Ryo OBUNAI ,  Yutaka IRIE ,  Sawa MIYAKE

IPC: C07C51/43 ,  C12N1/20 ,  C12P7/42

Abstract: Provided is a method for producing a composition containing gallic acid, the composition having a low content rate of protocatechuic acid using a microbial culture solution. A method for producing a composition containing gallic acid, the method comprising a step (A) of performing cooling crystallization using an aqueous solution (a) containing gallic acid and protocatechuic acid at 0.9° C./min or less.

公开(公告)号：US20220324786A1

公开(公告)日：2022-10-13

申请号：US17634600

申请日：2020-08-25

Applicant: DANISCO US INC.

Inventor： Juho JÄRVINEN ,  Hannu KOIVIKKO ,  Jyrki KUUSISTO ,  Tero Tuomas MENTUNEN ,  Juha NURMI ,  Pertti Matias SÄRELÄ ,  Jani SIITONEN ,  Gregory M. WHITED

IPC: C07C51/43 ,  C12N1/20

Abstract: Compositions and methods are provided for producing crystalline forms of organic acids or salts or lactones thereof from an aqueous solution. More specifically, methods are provided for producing a crystalline form of a salt of mevalonic acid (also referred to as X-MVA) from an aqueous solution, comprising subjecting the aqueous solution comprising said X-MVA to a purification step to produce a purified solution and crystallizing said X-MVA from said purified solution by water solvent crystallization. Methods are also provided for producing mevalonolactone from an aqueous solution comprising X-MVA, comprising subjecting the aqueous solution comprising said X-MVA to cation exchange thereby converting said aqueous solution comprising X-MVA to an aqueous solution comprising mevalonolactone (MVL). Methods are also provided for producing mevalonolactone monohydrate crystals.

公开(公告)号：US20220220057A1

公开(公告)日：2022-07-14

申请号：US17617341

申请日：2020-06-12

Applicant: Nectar Health Sciences Inc.

Inventor： Tony Durst ,  Jay Van Der Vlugt ,  Amanda Saikaley

IPC: C07C51/43 ,  C07C65/19

Abstract: 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：US11325941B2

公开(公告)日：2022-05-10

申请号：US15751826

申请日：2016-08-10

Applicant: Parabel Nutrition, Inc.

Inventor： Peter Sherlock ,  Matthew Neal Van Ert ,  Valentina Carpio

IPC: C07K1/14 ,  A23J1/00 ,  A01H4/00 ,  C07C51/43

Abstract: The present disclosure relates, according to some embodiments, to methods and systems for purifying proteins having a reduced oxalic acid content from aquatic species and compositions thereof.