公开(公告)号：US20240287742A1

公开(公告)日：2024-08-29

申请号：US18173107

申请日：2023-02-23

申请人： SOLENIS TECHNOLOGIES, L.P.

发明人： Cecil Coutinho ,  Sachin Borkar ,  Shantanu Nikam

IPC分类号： D21H17/07 ,  B01D61/02 ,  B01D61/14 ,  B01D61/58 ,  B01D69/02 ,  C07C209/86 ,  C08F26/02 ,  D21H21/10

CPC分类号： D21H17/07 ,  B01D61/027 ,  B01D61/145 ,  B01D61/58 ,  B01D69/02 ,  C07C209/86 ,  C08F26/02 ,  D21H21/10 ,  B01D2311/08 ,  B01D2325/20

摘要： Provided is a method for the removal of salts and by-products from vinylamine-containing polymers. In particular, the method allows the removal of unwanted salts, by-products, spent initiators and short chain vinylamine-containing polymers while retaining the functional, higher molecular weight polymers that provide for desired product performance.

公开(公告)号：US20240009591A1

公开(公告)日：2024-01-11

申请号：US18253606

申请日：2021-11-22

申请人： Covestro Deutschland AG

发明人： Ulrich Wolf

IPC分类号： B01D3/14 ,  B01D1/06 ,  B01D3/32 ,  C07C263/20 ,  C07C209/86

CPC分类号： B01D3/148 ,  B01D1/065 ,  B01D3/322 ,  C07C263/20 ,  C07C209/86

摘要： The invention relates to a distillation unit (100 000) which is designed for a continuous distillation process and to a method for a continuous operation for separating a liquid substance mixture (10) into two to six liquid product flows (201, 202, . . . ) with different compositions and into a gaseous product flow (300). For this purpose, an evaporation unit (10 000) is provided consisting of multiple evaporation devices (10 000-1, 10 000-2, . . . ), wherein each evaporation device has a circuit device (1 200-1, 1 200-2, . . . ) for recirculating a sub-quantity of each of the liquid sump flows (22, 21, . . . ) of an evaporation device into the respective evaporation device, and each of the circuit devices additionally has a discharge device (1 300-1, 1 300-2, . . . ) for providing one of the liquid product flows (201, 202, . . . ).

公开(公告)号：US10745329B2

公开(公告)日：2020-08-18

申请号：US15742636

申请日：2016-07-08

申请人： ARKEMA FRANCE ,  IFP ENERGIES NOUVELLES

发明人： Ludivine Bouvier ,  Catherine Laroche ,  Julien Grandjean

IPC分类号： B01J20/04 ,  B01J20/16 ,  B01J20/18 ,  B01J20/30 ,  C07C7/13 ,  C07C15/08 ,  C07C29/76 ,  C07C37/82 ,  C07C201/16 ,  C07C209/86 ,  C07C205/06 ,  C07C211/50

摘要： The present invention relates to zeolite adsorbents based on agglomerated zeolite X crystals comprising barium, potassium and sodium. These adsorbents find applications in the separation of aromatic C8 isomer fractions and especially xylene.

公开(公告)号：US10730022B2

公开(公告)日：2020-08-04

申请号：US16062615

申请日：2016-12-16

申请人： VITO NV

发明人： Yamini Satyawali ,  Dominic Ormerod ,  Karolien Vanbroekhoven ,  Anita Buekenhoudt

IPC分类号： B01D69/02 ,  B01D69/14 ,  B01D61/24 ,  B01D71/02 ,  C12P13/00 ,  C07C209/86 ,  C12P7/28

摘要： A membrane based process separates amines or organic acids from a solution containing at least one amine or at least one organic acid according to their hydrophobic properties. The more hydrophobic amine or organic acid passes the hydrophobic membrane into an acidic aqueous solution, thus selectively removing the amine or organic acid from the first solution. The process is particularly suitable to obtain chiral amines in high yield. A transaminase-catalyzed transamination of an amino donor and amino acceptor is combined with a hydrophobic membrane separation of the produced chiral amine. The selective removal of the chiral amine from the reaction mixture promotes the further transformation of the amino acceptor into the product chiral amine.

公开(公告)号：US20200157041A1

公开(公告)日：2020-05-21

申请号：US16717165

申请日：2019-12-17

申请人： Vitaworks IP, LLC

发明人： Songzhou Hu ,  Zhen Song

IPC分类号： C07C227/40 ,  C07C51/42 ,  B01D9/00 ,  B01D11/04 ,  C07C51/48 ,  C07C227/42 ,  C07C209/86 ,  C07C51/44 ,  C07C51/43 ,  C07C51/47 ,  C07C51/46 ,  B01D3/36

摘要： There is disclosed a process for the separation of long chain amino acid and long chain dibasic acid, comprising: (1) adding an ammonium salt to the mixture of alkali salts of long chain amino acid and long chain dibasic acid; (2) heating to remove ammonia; and (3) separating long chain amino acid by solid-liquid separation; and (4) acidifying the salt of long chain dibasic acid with an acid to separate long chain dibasic acid.

公开(公告)号：US10576467B2

公开(公告)日：2020-03-03

申请号：US15564882

申请日：2016-04-08

申请人： INVISTA NORTH AMERICA S.A.R.L.

发明人： Mariusz Kamionka ,  Alex Conradie

IPC分类号： C02F1/20 ,  C02F1/42 ,  B01J39/05 ,  B01J39/18 ,  B01J47/11 ,  B01J49/05 ,  B01J49/60 ,  B01J47/014 ,  B01J47/016 ,  C02F101/34 ,  C02F101/38 ,  C07C209/86

摘要： Described herein are processes and apparatus for the high purity and high concentration recovery of multivalent products via continuous ion exchange from aqueous solutions for further down-stream purification.

公开(公告)号：US10336668B2

公开(公告)日：2019-07-02

申请号：US15529133

申请日：2015-11-18

申请人： BASF SE

发明人： Jan-Oliver Weidert ,  Sandra Kramp ,  Regina Benfer ,  Alexander Panchenko ,  Andreas Weickgenannt ,  Norbert Gutfrucht ,  Klaus Breuer ,  Artur Kozicki ,  Ralph Busch

IPC分类号： C07C7/04 ,  B01D3/00 ,  B01D3/10 ,  C07C209/86 ,  C07C211/36

摘要： A process for preparing trans-enriched MDACH, including: distilling an MDACH starting mixture in the presence of an auxiliary, which is an organic compound having a molar mass of 62 to 500 g/mol, a boiling point at least 5° C. above the boiling point of cis,cis-2,6-diamino-1-methylcyclohexane, and 2 to 4 functional groups, each of which is independently an alcohol group or a primary, secondary or tertiary amino group. The MDACH starting mixture includes 0 to 100% by weight of 2,4-MDACH and 0 to 100% by weight of 2,6-MDACH, based on the total amount of MDACH present in the MDACH starting mixture. The MDACH starting mixture includes both trans and cis isomers. Trans-enriched MDACH includes 0 to 100% by weight of 2,4-MDACH and 0 to 100% by weight of 2,6-MDACH, where the proportion of trans isomers in the mixture is higher than the proportion of trans isomers in the MDACH starting mixture.

公开(公告)号：US10265642B2

公开(公告)日：2019-04-23

申请号：US15094770

申请日：2016-04-08

申请人： INVISTA NORTH AMERICA S.a.r.l.

发明人： Gary Smith ,  Gregory S Kirby ,  Paul Pearlman

IPC分类号： B01D15/18 ,  C12P13/00 ,  C07C209/82 ,  C07C209/86 ,  C07C211/09 ,  C07C211/12 ,  C07C213/10 ,  C07C227/38 ,  C07C227/40 ,  C07C229/08

摘要： The present disclosure relates to methods for separating at least one amine chosen from diamines and omega-aminoacids from a feed mixture using a simulated moving bed (SMB) adsorptive technology.

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.

公开(公告)号：US20190002397A1

公开(公告)日：2019-01-03

申请号：US15684740

申请日：2017-08-23

申请人： VITAWORKS IP, LLC

发明人： Songzhou HU

IPC分类号： C07C227/40 ,  B01D9/00 ,  B01D11/04 ,  B01D3/36 ,  C07C51/46 ,  C07C51/47 ,  C07C51/43 ,  C07C51/44 ,  C07C209/86 ,  C07C227/42 ,  C07C51/48

摘要： There is disclosed a process for the separation of long chain dibasic acid and fatty acid, comprising: (1) reacting a mixture of long chain dibasic acid and fatty acid with ammonium hydroxide to form an insoluble ammonium salt of fatty acid and a soluble ammonium salt of long chain dibasic acid; (2) recovering the insoluble ammonium salt of fatty acid; and (3) adding an acid to the mother liquor of step (2) to obtain the long chain dibasic acid.