公开(公告)号：US12281090B2

公开(公告)日：2025-04-22

申请号：US17778921

申请日：2020-12-18

Applicant: Furanix Technologies B.V.

Inventor： Hendrikus Jacob Baars ,  Jan Hendrik Blank ,  Jeffrey John Kolstad ,  Ana Sofia Vagueiro De Sousa Dias

IPC: C07D307/68

Abstract: A process for producing a carboxylic acid composition including 2,5-furandicarboxylic acid, including the steps: a) oxidizing an oxidizable compound including 5-alkoxymethylfurfural in an oxidation reactor in the presence of a saturated organic acid solvent having from 2 to 6 carbon atoms and a catalyst system comprising cobalt, manganese and bromine using an oxidizing gas at a temperature in the range of 160 to 210° C. to obtain a crude carboxylic acid composition including mono alkyl ester of 2,5-furandicarboxylic acid and solid 2,5-furandicarboxylic acid, b) isolating at least a portion of the solid 2,5-furandicarboxylic acid from the crude carboxylic acid composition in a solid-liquid separation zone to generate a solid cake and a mother liquor, c) determining the amount of manganese and/or cobalt in the cake, and d) increasing the amount of one or more controlling acids in the oxidation reactor.

公开(公告)号：US20220411393A1

公开(公告)日：2022-12-29

申请号：US17778921

申请日：2020-12-18

Applicant: Furanix Technologies B.V.

Inventor： Hendrikus Jacob Baars ,  Jan Hendrik Blank ,  Jeffrey John Kolstad ,  Ana Sofia Vagueiro De Sousa Dias

IPC: C07D307/68

Abstract: A process for producing a carboxylic acid composition including 2,5-furandicarboxylic acid, including the steps: a) oxidizing an oxidizable compound including 5-alkoxymethylfurfural in an oxidation reactor in the presence of a saturated organic acid solvent having from 2 to 6 carbon atoms and a catalyst system comprising cobalt, manganese and bromine using an oxidizing gas at a temperature in the range of 160 to 210° C. to obtain a crude carboxylic acid composition including mono alkyl ester of 2,5-furandicarboxylic acid and solid 2,5-furandicarboxylic acid, b) isolating at least a portion of the solid 2,5-furandicarboxylic acid from the crude carboxylic acid composition in a solid-liquid separation zone to generate a solid cake and a mother liquor, c) determining the amount of manganese and/or cobalt in the cake, and d) increasing the amount of one or more controlling acids in the oxidation reactor.

公开(公告)号：US09643945B2

公开(公告)日：2017-05-09

申请号：US14781993

申请日：2014-04-04

Applicant: Furanix Technologies B.V.

Inventor： Etienne Mazoyer ,  Ana Sofia Vagueiro De Sousa Dias ,  Benjamin McKay ,  Hendrikus Jacob Baars ,  Victor Peter Charles Vreeken ,  Gerardus Johannes Maria Gruter ,  David Lee Sikkenga

IPC: C07D307/68

CPC classification number: C07D307/68 ,  Y02P20/582

Abstract: 2,5-Furandicarboxylic acid and methyl acetate are prepared in a continuous process by introducing a 5-methoxymethylfurfural-containing feedstock, an oxygen-containing gas, an oxidation catalyst and an acetic acid-containing solvent into a reactor; allowing 5-methoxymethylfurfural to react with oxygen and acetic acid in the presence of the oxidation catalyst to yield 2,5-furandicarboxylic acid as main product and methyl acetate; withdrawing 2,5-furandicarboxylic acid-containing product from the reactor and recovering 2,5-furandicarboxylic acid product; and withdrawing a vaporous stream containing methyl acetate from the reactor.

公开(公告)号：US20160024039A1

公开(公告)日：2016-01-28

申请号：US14781993

申请日：2014-04-04

Applicant: FURANIX TECHNOLOGIES B.V.

Inventor： Etienne Mazoyer ,  Ana Sofia Vagueiro De Sousa Dias ,  Benjamin McKay ,  Hendrikus Jacob Baars ,  Victor Peter Charles Vreeken ,  Gerardus Johannes Maria Gruter ,  David Lee Sikkenga

IPC: C07D307/68

CPC classification number: C07D307/68 ,  Y02P20/582

Abstract: 2,5-Furandicarboxylic acid and methyl acetate are prepared in a continuous process by introducing a 5-methoxymethylfurfural-containing feedstock, an oxygen-containing gas, an oxidation catalyst and an acetic acid-containing solvent into a reactor; allowing 5-methoxymethylfurfural to react with oxygen and acetic acid in the presence of the oxidation catalyst to yield 2,5-furandicarboxylic acid as main product and methyl acetate; withdrawing 2,5-furandicarboxylic acid-containing product from the reactor and recovering 2,5-furandicarboxylic acid product; and withdrawing a vaporous stream containing methyl acetate from the reactor.

Abstract translation: 通过将5-甲氧基甲基糠醛的原料，含氧气体，氧化催化剂和含乙酸的溶剂引入反应器，在连续方法中制备2,5-呋喃二甲酸和乙酸甲酯。 在氧化催化剂存在下，使5-甲氧基甲基糠醛与氧和乙酸反应，得到2,5-呋喃二羧酸为主要产物和乙酸甲酯; 从反应器中取出2,5-呋喃二羧酸的产物并回收2,5-呋喃二羧酸产物; 并从反应器中取出含有乙酸甲酯的蒸气流。