公开(公告)号：US20190292126A1

公开(公告)日：2019-09-26

申请号：US16302446

申请日：2017-05-23

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Ritesh Nandy ,  Vishal Patrick ,  Edward Joseph Nesakumar

IPC: C07C67/08 ,  C07C63/331

Abstract: A method of making alkyl tribenzanoates includes combining a phenyl tricarboxylic acid or chemical equivalent thereof with greater than or equal to 3.5 molar equivalents of a C4-C18 alkyl alcohol, based on the amount of phenyl tricarboxylic acid or chemical equivalent thereof, in the presence of 0.05 to 0.20 mol % of a titanium tetra-alkoxide catalyst, based on the total moles of phenyl tricarboxylic acid or chemical equivalent, at a temperature greater than 210° C. to form a reaction mixture having an acid value less than or equal to 0.5 as determined according to ASTM D1045.

公开(公告)号：US11084769B2

公开(公告)日：2021-08-10

申请号：US16644593

申请日：2018-09-12

Applicant: SABIC Global Technologies B.V.

Inventor： Umesh Krishna Hasyagar ,  Ritesh Nandy ,  Vinod S. Nair ,  Somak Paul ,  Ibrahim S. Marhoon-Al

IPC: C07C29/88 ,  C07C29/76

Abstract: A method of purifying alcohol produced in a process that includes the Oxo process is disclosed. Aldehyde from the Oxo process that remains with the alcohol is removed by a reaction with an alkali sulphite to produce an insoluble adduct and alcohol having a reduced amount of aldehyde mixed with it. The adduct is removed from the alcohol by filtration.

公开(公告)号：US20200010399A1

公开(公告)日：2020-01-09

申请号：US16493034

申请日：2018-03-15

Applicant: SABIC Global Technologies B.V.

Inventor： Ritesh Nandy ,  Vishal Patrick ,  Edward Joseph Nesakumar

IPC: C07C67/08

Abstract: A method for the manufacture of a diester of terephthalic acid includes reacting terephthalic acid and a C6-18 alkyl monohydric alcohol in the presence of a catalyst having the formula MO[CH3COCH═C(0-)CH3]2 wherein M=Ti, Zr, or Hf, under conditions effective to form a reaction mixture comprising the di(C6-18 alkyl) terephthalate.

公开(公告)号：US20190308925A1

公开(公告)日：2019-10-10

申请号：US16308954

申请日：2017-06-23

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Prashant Patil ,  Venkata Ramanarayanan Ganapathy Bhotla ,  Ritesh Nandy

IPC: C07C67/58 ,  C07C67/56 ,  C07C67/03 ,  C07C69/82 ,  C08K5/12

Abstract: A process for the preparation of a di(C6-21 alkyl) phthalate combining a recycle poly((C1-4 alkyl) terephthalate), a molar excess of a C6-21 alcohol relative to the poly(C1-4 alkyl) terephthalate), and a catalyst comprising sulfuric acid, a C1-30 sulfonic acid, a tetra(C1-6 alkyl) titanate, or a combination comprising at least one of the foregoing, to provide a reaction mixture; and heating the reaction mixture at a temperature greater than 130° C., under conditions effective to provide a product mixture comprising the di(C7-13 alkyl) terephthalate.