公开(公告)号：US20210179551A1

公开(公告)日：2021-06-17

申请号：US17176326

申请日：2021-02-16

申请人： VITAWORKS IP, LLC

发明人： Songzhou HU

IPC分类号： C07C303/32 ,  C07C303/02 ,  C07C303/44 ,  C07C303/22 ,  C07C309/14

摘要： There is disclosed a process for producing alkali taurinate from alkali isethionate, alkali ditaurinate, or alkali tritaurinate by adding excess ammonia and at least of equal molar amount of an alkali hydroxide to a solution comprised of alkali ditaurinate, alkali tritaurinate, or their mixture and subjecting the solution to an ammonolysis to yield a solution comprised of alkali taurinate.

公开(公告)号：US20190112262A1

公开(公告)日：2019-04-18

申请号：US16208911

申请日：2018-12-04

申请人： VITAWORKS IP, LLC

发明人： Songzhou HU

IPC分类号： C07C303/32 ,  C07C303/44 ,  C07C303/02 ,  C07C303/22 ,  C07C309/14

摘要： There is disclosed a cyclic process for producing alkali taurinate from a solution comprising alkali ditaurinate and alkali tritaurinate by the ammonolysis in the presence of one or more catalysts. The ammonolysis reaction is catalyzed by alkali salts of hydroxide, sulfate, sulfite, phosphate, or carbonate. Taurine or alkali taurinate is prepared in a yield from 90% to quantitative by successive ammonolysis.

公开(公告)号：US20190002396A1

公开(公告)日：2019-01-03

申请号：US15644665

申请日：2017-07-07

申请人： VITAWORKS IP, LLC

发明人： Songzhou HU

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

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) recovering alkylamine from an aqueous solution of an alkali hydroxide hydrolysis of the mixed amide derivatives by distilling or by extracting with an extractant solvent; (2) cooling the aqueous solution of step (1) to precipitate a mixed alkali salts of long chain amino acid and dibasic acid; (3) recovering the mixed alkali salts of long chain amino acid and dibasic acid to provide a mother liquor; (4) separating long chain amino acid and dibasic acid by acidification-extraction of long chain dibasic acid with an extractant solvent or by selective dissolution of alkali salt of long chain amino acid in an aqueous solvent; and (4) adding an acid to the mother liquor of step (3) to obtain alkanoic acid.

公开(公告)号：US20180312464A1

公开(公告)日：2018-11-01

申请号：US16030605

申请日：2018-07-09

申请人： VITAWORKS IP, LLC

发明人： Songzhou HU

IPC分类号： C07C303/32 ,  C07C303/02 ,  C07C303/44 ,  C07C303/22 ,  C07C309/14

CPC分类号： C07C303/32 ,  C07C303/02 ,  C07C303/22 ,  C07C303/44 ,  C07C309/14

摘要： There is disclosed a process for producing alkali taurinate by the ammonolysis of alkali ditaurinate, alkali tritaurinate, or a solution of alkali ditaurinate and alkali tritaurinate in the presence of one or more catalysts. The ammonolysis reaction is catalyzed by alkali salts of hydroxide, sulfate, sulfite, phosphate, or carbonate.

公开(公告)号：US20180141899A1

公开(公告)日：2018-05-24

申请号：US15870844

申请日：2018-01-12

申请人： VITAWORKS IP, LLC

发明人： Songzhou HU

IPC分类号： C07C303/32 ,  C07C303/02 ,  C07C303/44 ,  C07C303/22 ,  C07C309/14

CPC分类号： C07C303/32 ,  C07C303/02 ,  C07C303/22 ,  C07C303/44 ,  C07C309/14

摘要： There is disclosed a process for producing alkali taurinate from alkali isethionate by the ammonolysis of a solution of alkali isethionate, alkali ditaurinate, and alkali tritaurinate, or a solution of alkali ditaurinate and alkali tritaurinate. The overall yield of alkali taurinate from alkali isethionate is obtained to from 90% to nearly quantitative. The ammonolysis reaction is catalyzed by alkali salts of hydroxide, sulfate, sulfite, phosphate, or carbonate.

公开(公告)号：US20190112261A1

公开(公告)日：2019-04-18

申请号：US16208893

申请日：2018-12-04

申请人： VITAWORKS IP, LLC

发明人： Songzhou HU

IPC分类号： C07C303/32 ,  C07C303/44

摘要： There is disclosed a cyclic process for producing alkali taurinate from a solution comprising alkali tritaurinate and isethionate by the ammonolysis in the presence of one or more catalysts. The ammonolysis reaction is catalyzed by alkali salts of hydroxide, sulfate, sulfite, phosphate, or carbonate. Taurine or alkali taurinate is prepared in a yield from 90% to quantitative from alkali isethionate.

公开(公告)号：US20190112260A1

公开(公告)日：2019-04-18

申请号：US16208875

申请日：2018-12-04

申请人： VITAWORKS IP, LLC

发明人： Songzhou HU

IPC分类号： C07C303/32 ,  C07C303/44

摘要： There is disclosed a cyclic process for producing alkali taurinate from a solution comprising alkali tritaurinate by the ammonolysis in the presence of one or more catalysts. The ammonolysis reaction is catalyzed by alkali salts of hydroxide, sulfate, sulfite, phosphate, or carbonate. Taurine or alkali taurinate is prepared in a yield from 90% to quantitative.

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.

公开(公告)号：US20180093946A1

公开(公告)日：2018-04-05

申请号：US15832667

申请日：2017-12-05

申请人： VITAWORKS IP, LLC

发明人： Songzhou HU

IPC分类号： C07C303/02 ,  C07C303/44 ,  C07C303/32

CPC分类号： C07C303/02 ,  C07C303/32 ,  C07C303/44 ,  C07C309/14

摘要： There is disclosed a process for producing taurine from aziridine by (a) adding gaseous aziridine or a solution of aziridine to a solution of ammonium bisulfite, or ammonium sulfite, or a mixture of ammonium bisulfite and ammonium sulfite to form ammonium taurinate; (b) decomposing ammonium taurinate by heating and removing ammonia from (a) to obtain a crystalline suspension of taurine; and (c) separating taurine by means of solid-liquid separation.