公开(公告)号：US20180370899A1

公开(公告)日：2018-12-27

申请号：US16062385

申请日：2016-12-23

Applicant: SABIC Global Technologies B.V.

Inventor： Feng Xu ,  Flaiyh Al-Anazi

IPC: C07C213/10 ,  C07C215/12 ,  C01D1/04 ,  C01B35/04

Abstract: A method of reducing color in an alkanolamine, the method comprising: contacting the alkanolamine with an amount of an aqueous solution effective to provide 5 to 1000 parts per million by weight of an alkali metal borohydride, based on parts by weight of the alkanolamine; and 0.5 to 10,000 parts per million by weight of an alkali metal hydroxide, based on parts by weight of the alkanolamine; preferably wherein the color-reduced alkanolamine is not distilled after the contacting.

公开(公告)号：US10662144B2

公开(公告)日：2020-05-26

申请号：US16060309

申请日：2016-12-06

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Feng Xu ,  Flaiyh Al-Anazi

IPC: C07C213/10 ,  C07F5/02 ,  C07D215/08 ,  C07D215/10 ,  C07D215/12

Abstract: A method of reducing color in an alkanolamine is described. The method includes contacting the alkanolamine with a color-reducing amount of a borane complex effective to provide a color-reduced alkanolamine composition having a Platinum-Cobalt Color Value, according to Test Method ASTM D1209, of less than 50.

公开(公告)号：US11746080B2

公开(公告)日：2023-09-05

申请号：US16809910

申请日：2020-03-05

Applicant: SABIC Global Technologies B.V.

Inventor： Feng Xu ,  Flaiyh Al-Anazi

IPC: C07C213/10 ,  C07F5/02 ,  C07D215/08 ,  C07D215/10 ,  C07D215/12

CPC classification number: C07C213/10 ,  C07F5/022 ,  C07F5/027 ,  C07D215/08 ,  C07D215/10 ,  C07D215/12 ,  C07C213/10 ,  C07C215/08 ,  C07C213/10 ,  C07C215/10 ,  C07C213/10 ,  C07C215/12

Abstract: A method of reducing color in an alkanolamine is described. The method includes contacting the alkanolamine with a color-reducing amount of a borane complex effective to provide a color-reduced alkanolamine composition having a Platinum-Cobalt Color Value, according to Test Method ASTM D1209, of less than 50.

公开(公告)号：US11702382B2

公开(公告)日：2023-07-18

申请号：US17511119

申请日：2021-10-26

Applicant: SABIC Global Technologies B.V.

Inventor： Feng Xu ,  Flaiyh Al-Anazi

IPC: C07C213/10 ,  C07C215/12 ,  C01B35/04 ,  C01D1/04

CPC classification number: C07C213/10 ,  C01B35/04 ,  C01D1/04 ,  C07C215/12 ,  C07C213/10 ,  C07C215/12

Abstract: A method of reducing color in an alkanolamine, the method comprising: contacting the alkanolamine with an amount of an aqueous solution effective to provide 5 to 1000 parts per million by weight of an alkali metal borohydride, based on parts by weight of the alkanolamine; and 0.5 to 10,000 parts per million by weight of an alkali metal hydroxide, based on parts by weight of the alkanolamine; preferably wherein the color-reduced alkanolamine is not distilled after the contacting.

公开(公告)号：US20230118672A1

公开(公告)日：2023-04-20

申请号：US16625367

申请日：2018-06-19

Applicant: SABIC Global Technologies B.V.

Inventor： Feng Xu ,  Flaiyh Farhan N. Al-Anazi

IPC: C08G65/26 ,  C11D1/72 ,  A61K8/39

Abstract: A method for the synthesis of a substituted poly(alkylene oxide) comprises reacting a substituted alcohol of formula (1) with an alkylene oxide of formula (2) in the presence of a catalyst and under conditions effective to provide the substituted poly(alkylene oxide) of formula (3) wherein in the foregoing formulas, each R is independently hydrogen, C1-60 alkyl, or C3-12 cycloalkyl, ring A is cyclohexane or phenyl, each R1 is independently hydrogen, methyl, ethyl, propyl, butyl, hexyl, decyl, dodecyl, tetradecyl, or hexadecyl, preferably hydrogen or methyl, and n is 2 to 60.

公开(公告)号：US11203568B2

公开(公告)日：2021-12-21

申请号：US16062385

申请日：2016-12-23

Applicant: SABIC Global Technologies B.V.

Inventor： Feng Xu ,  Flaiyh Al-Anazi

IPC: C07C213/10 ,  C07C215/12 ,  C01B35/04 ,  C01D1/04

Abstract: A method of reducing color in an alkanolamine, the method comprising: contacting the alkanolamine with an amount of an aqueous solution effective to provide 5 to 1000 parts per million by weight of an alkali metal borohydride, based on parts by weight of the alkanolamine; and 0.5 to 10,000 parts per million by weight of an alkali metal hydroxide, based on parts by weight of the alkanolamine; preferably wherein the color-reduced alkanolamine is not distilled after the contacting.