公开(公告)号：US20230278948A1

公开(公告)日：2023-09-07

申请号：US18315392

申请日：2023-05-10

Applicant: Cytec Industries Inc.

Inventor： Jonathan E. MEEGAN ,  Victor MARUANI ,  Vincent SCHANEN ,  Paul CROSS

IPC: C07C209/84

CPC classification number: C07C209/84

Abstract: A method for making a di(aminoaryl)fluorene compound that includes the steps of: (a) reacting a fluorenone compound according structure (I):




with excess aminobenzene according to structure (II):




wherein: each R1, R2, R3, R4, R12, and R13 is independently a group that is inert in the polymerization of epoxy compounds, and R11 is H or (C1-C6)alkyl, in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150° C. and from which the di(aminoaryl)fluorene compound is crystallizable, to form a crude product mixture comprising the di(aminoaryl)fluorene compound, (b) crystallizing di(aminoaryl)fluorene compound in the product mixture, and (c) separating the product mixture into crystallized di(aminoaryl)fluorene compound and a filtrate.

公开(公告)号：US11685707B2

公开(公告)日：2023-06-27

申请号：US17415378

申请日：2019-12-20

Applicant: Cytec Industries Inc.

Inventor： Jonathan E. Meegan ,  Victor Maruani ,  Vincent Schanen ,  Paul Cross

IPC: C07C209/84

CPC classification number: C07C209/84

Abstract: The present invention is directed to a method for making a di(aminoaryl)fluorene compound that includes the steps of: (a) reacting a fluorenone compound according structure (I) with excess aminobenzene according to structure (II) wherein: each R1, R2, R3, R4, R12, and R13 is independently a group that is inert in the polymerization of epoxy compounds, and R11 is H or (C1-C6)alkyl, in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150° C. and in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150° C. and from which the di(aminoaryl)fluorene compound is crystallizable, to form a crude product mixture comprising the di(aminoaryl)fluorene compound, (b) crystallizing di(aminoaryl)fluorene compound in the product mixture, and (c) separating the product mixture into crystallized di(aminoaryl)fluorene compound and a filtrate.

公开(公告)号：US09963421B2

公开(公告)日：2018-05-08

申请号：US14767814

申请日：2015-03-19

Applicant: CJ CHEILJEDANG CORP.

Inventor： Won Sik Gwak ,  Hyun Ju Won ,  Hideki Murata ,  Chong Ho Lee

IPC: C07C209/84 ,  C07C211/09 ,  C12P13/00

CPC classification number: C07C209/84 ,  C07C211/09 ,  C12P13/001

Abstract: Provided are a method of refining a reaction solution including a carbonate of 1,5-diaminopentane, which is produced by fermentation, through a decarbonation step and a pH adjustment step, and 1,5-diaminopentane which is refined by the above method.

公开(公告)号：US09919996B2

公开(公告)日：2018-03-20

申请号：US15406900

申请日：2017-01-16

Applicant: CATHAY R&D CENTER CO., LTD. ,  CATHAY INDUSTRIAL BIOTECH LTD.

Inventor： Xiucai Liu ,  Charlie Liu ,  Bingbing Qin ,  Naiqiang Li ,  XiaoMing Li

IPC: C07C209/84 ,  C07C209/86

CPC classification number: C07C209/84 ,  C07C209/86 ,  C07C211/09

Abstract: The invention relates to a method for preparing cadaverine comprising: (1) obtaining an aqueous cadaverine salt composition from a fermentation system; (2) adjusting the pH of the aqueous cadaverine salt composition to a pH of at least about 12 by adding an inorganic base composition to provide a first composition comprising an aqueous cadaverine composition having a pH of at least about 12 and a solid composition comprising one or more alkali metal sulfates; (3) subjecting the first composition to solid-liquid separation without organic solvent extraction to provide the aqueous cadaverine composition and the solid composition; (4) distilling or evaporating the aqueous cadaverine composition of step (3) without organic solvent extraction to provide purified cadaverine; (5) preparing a saturated solution of the alkali metal sulfate(s) from the solid composition of step (3) at a temperature of about 35-40° C., mixing the saturated solution with NH4HCO3, and subjecting the mixture to solid-liquid separation to provide Solution (I) and Solid (I); (6) adjusting the temperature of Solution (I) to about 60-80° C., and obtaining Solution (II) and Solid (II) after solid-liquid separation; (7) concentrating Solution (II) and obtaining Solution (III) and Solid (III) after solid-liquid separation; and (8) adding Solid (III) back to the fermentation system of step (1); wherein steps (1) to (8) are optionally repeated one or more times.

公开(公告)号：US09896409B2

公开(公告)日：2018-02-20

申请号：US15418071

申请日：2017-01-27

Applicant: CATHAY R&D CENTER CO., LTD. ,  CATHAY INDUSTRIAL BIOTECH LTD.

Inventor： Xiucai Liu ,  Charlie Liu ,  Bingbing Qin ,  Naiqiang Li ,  XiaoMing Li

IPC: C07C209/84

CPC classification number: C07C209/84 ,  C07C211/09

Abstract: One aspect of the invention relates to a method for the purification of cadaverine from an aqueous cadaverine composition comprising one or more involatile impurities, the method comprising: a) distilling or evaporating the aqueous cadaverine composition wherein one or more solvents are added to the evaporation/distillation system before the evaporation/distillation starts, during the evaporation/distillation and/or after the evaporation/distillation substantially stops when no more evaporation/distillation is observed to produce purified cadaverine, wherein the evaporation or distillation is done at a heating temperature of about 80° C. to about 180° C. and under a pressure of 1 atm or lower, and the one or more solvents comprise at least one or more high boiling point (HBP) solvents having a boiling point of at least about 185° C. (1 atm); and b) recovering the one or more HBP solvents.

公开(公告)号：US09828329B2

公开(公告)日：2017-11-28

申请号：US15125850

申请日：2015-03-11

Applicant: BASF SE

Inventor： Hermann Luyken ,  Stephanie Jaegli ,  Michael Lorenz ,  Gordon Brasche ,  Markus Jegelka ,  Barbara Becker ,  Robert Baumann ,  Johann-Peter Melder ,  Boris Buschhaus ,  Thomas Krug

IPC: C07C209/84

CPC classification number: C07C209/84 ,  C07C209/16 ,  C07C209/48 ,  C07C213/04 ,  C07C253/08 ,  C07C253/30 ,  C07C211/10 ,  C07C255/16 ,  C07C255/25 ,  C07C215/08

Abstract: The present invention relates to a process for purifying ethylenediamine (EDA) by distillation, wherein the process comprises the steps a) and b). In step a), a mixture (G1) comprising water, EDA and N-methylethylenediamine (N-MeEDA) is fed into a distillation apparatus (D1), and the major part of the water comprised in the mixture (G1) is separated off overhead at a pressure of greater than 4.8 bara. From the bottom of (D1), the water-enriched mixture (G2) is fed into a distillation apparatus (D2) in step b). At the top of (D2), the major part of the N-MeEDA is distilled off. The stream (S3) obtained from the bottom of (D2) comprises EDA, with the components water and N-MeEDA comprised in the mixture (G1) having been largely or completely removed. Further distillation steps can optionally be carried out in order to obtain pure EDA, for example when diethylenetriamine (DETA) is additionally comprised in the mixture (G1). If ammonia is additionally comprised in the mixture (G1), an ammonia removal is preferably additionally carried out before carrying out the step a) in the process of the invention.

公开(公告)号：US09765032B2

公开(公告)日：2017-09-19

申请号：US15117058

申请日：2014-12-26

Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED

Inventor： Tadafumi Matsunaga ,  Natsuru Hiraguri ,  Tomoaki Takahashi ,  Tomohiko Inui ,  Masaya Tanimoto

IPC: C07D231/10 ,  C07D231/12 ,  C07D231/16 ,  C07C209/88 ,  C07C211/60 ,  C07B57/00

CPC classification number: C07D231/10 ,  C07B57/00 ,  C07B2200/07 ,  C07C209/84 ,  C07C209/88 ,  C07C211/60 ,  C07C2602/08 ,  C07D231/12 ,  C07D231/14 ,  C07D231/16

Abstract: A method for producing (R)-1,1,3-trimethyl-4-aminoindane includes the following steps (A), (B), and (C). Step (A) is a step of optically resolving 1,1,3-trimethyl-4-aminoindane to obtain (R)-1,1,3-trimethyl-4-aminoindane and (S)-1,1,3-trimethyl-4-aminoindane, step (B) is a step of racemizing the (S)-1,1,3-trimethyl-4-aminoindane obtained in the step (A) or (C) to obtain 1,1,3-trimethyl-4-aminoindane, and step (C) is a step of optically resolving the 1,1,3-trimethyl-4-aminoindane obtained in the step (B) to obtain (R)-1,1,3-trimethyl-4-aminoindane and (S)-1,1,3-trimethyl-4-aminoindane.

公开(公告)号：US20170166532A1

公开(公告)日：2017-06-15

申请号：US15117058

申请日：2014-12-26

Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED

Inventor： Tadafumi MATSUNAGA ,  Natsuru HIRAGURI ,  Tomoaki TAKAHASHI ,  Tomohiko INUI ,  Masaya TANIMOTO

IPC: C07D231/10 ,  C07B57/00 ,  C07D231/16 ,  C07D231/12 ,  C07C209/88 ,  C07C211/60

CPC classification number: C07D231/10 ,  C07B57/00 ,  C07B2200/07 ,  C07C209/84 ,  C07C209/88 ,  C07C211/60 ,  C07C2602/08 ,  C07D231/12 ,  C07D231/14 ,  C07D231/16

Abstract: A method for producing (R)-1,1,3-trimethyl-4-aminoindane includes the following steps (A), (B), and (C). Step (A) is a step of optically resolving 1,1,3-trimethyl-4-aminoindane to obtain (R)-1,1,3-trimethyl-4-aminoindane and (S)-1,1,3-trimethyl-4-aminoindane, step (B) is a step of racemizing the (S)-1,1,3-trimethyl-4-aminoindane obtained in the step (A) or (C) to obtain 1,1,3-trimethyl-4-aminoindane, and step (C) is a step of optically resolving the 1,1,3-trimethyl-4-aminoindane obtained in the step (B) to obtain (R)-1,1,3-trimethyl-4-aminoindane and (S)-1,1,3-trimethyl-4-aminoindane.

公开(公告)号：US20170114001A1

公开(公告)日：2017-04-27

申请号：US15129445

申请日：2015-03-27

Applicant: The Queen's University of Belfast

Inventor： Martin Atkins ,  Fergal Coleman ,  Yoan Delavoux

IPC: C07C213/02 ,  C07D301/32 ,  C07C209/80 ,  F23J15/02 ,  C07D207/06 ,  C07C209/84 ,  B01J31/02 ,  B01D53/14 ,  C07D301/02 ,  C07C68/00

CPC classification number: C07C213/02 ,  B01D53/1462 ,  B01D53/1493 ,  B01D2252/20489 ,  B01D2256/245 ,  B01D2257/304 ,  B01D2257/504 ,  B01D2258/0283 ,  B01D2258/05 ,  B01J31/0282 ,  C07C68/00 ,  C07C209/80 ,  C07C209/84 ,  C07C213/04 ,  C07C2523/00 ,  C07D207/06 ,  C07D301/02 ,  C07D301/32 ,  C07D303/14 ,  F23J15/02 ,  Y02C10/04 ,  Y02C10/06 ,  Y02E20/326 ,  Y02P20/152 ,  Y02P20/51 ,  C07C215/10

Abstract: The invention relates to a process for preparing alkanolamines, useful in the removal of CO2 and/or H2S from a CO2 and/or H2S containing gaseous stream, wherein the preparation of the alkanolamines is conducted using specifically selected ionic liquids under specifically selected reaction conditions.

公开(公告)号：US09617202B2

公开(公告)日：2017-04-11

申请号：US15048287

申请日：2016-02-19

Applicant: AJINOMOTO CO., INC.

Inventor： Takehiro Hiura ,  Akifumi Hasegawa ,  Takehiko Chikamori

IPC: C07C209/86

CPC classification number: C07C209/86 ,  C07C209/84 ,  C07C211/09

Abstract: A simple and efficient method for producing 1,5-pentanediamine in a free form is provided. The method for producing 1,5-pentanediamine in a free form from a salt of 1,5-pentanediamine includes a step of adsorbing 1,5-pentanediamine in a free form onto a column of an ion exchange resin by applying a solution of salt of 1,5-pentanediamine to the column of the ion exchange resin, and a step of eluting a solution of the 1,5-pentanediamine in a free form from the ion exchange resin by applying an eluent solution to the column of the ion exchange resin onto which the 1,5-pentanediamine in a free form is absorbed.