公开(公告)号：US20150299087A1

公开(公告)日：2015-10-22

申请号：US14648437

申请日：2013-12-09

Applicant: DSM IP ASSETS B.V.

Inventor： Rudy Francois Maria Jozef PARTON

IPC: C07C51/47 ,  C07C59/185 ,  B01D3/40 ,  C07C51/48

CPC classification number: C07C51/47 ,  B01D3/40 ,  C07C51/42 ,  C07C51/44 ,  C07C51/48 ,  C07C59/185 ,  C07C53/02

Abstract: The invention provides a process for the isolation of levulinic acid and formic acid from a composition comprising formic acid and levulinic acid, said process comprising a solid-liquid separation step, a vapor removal step, and a solvent-solvent extraction step, wherein a vapor condensate vapor and/or an aqueous phase from the solvent extraction is used to wash the solid fraction. Washing with vapor condensate results in higher levulinic acid yields (higher levulinic acid recovery) as compared to washing with normal water. Washing with aqueous phase results in a less compressible filter cake. Washing first with aqueous phase and subsequently with condensate results in even higher levulinic acid yields. The process is suitable for isolating levulinic acid and formic acid from compositions made by acid hydrolysis of a lignocellulosic biomass, and also from compositions made by acid hydrolysis of sugars such as glucose and fructose.

Abstract translation: 本发明提供从包含甲酸和乙酰丙酸的组合物中分离乙酰丙酸和甲酸的方法，所述方法包括固液分离步骤，蒸气去除步骤和溶剂 - 溶剂萃取步骤，其中蒸气 冷凝物蒸气和/或来自溶剂萃取的水相用于洗涤固体部分。 与正常水洗涤相比，用蒸气冷凝物洗涤导致更高的乙酰丙酸产量（更高的乙酰丙酸回收率）。 用水相洗涤导致较不压缩的滤饼。 首先用水相洗涤，随后用冷凝液洗脱得到甚至更高的乙酰丙酸产率。 该方法适合于通过木质纤维素生物质的酸水解制备的组合物以及由糖如葡萄糖和果糖的酸水解制备的组合物分离乙酰丙酸和甲酸。

公开(公告)号：US20150299089A1

公开(公告)日：2015-10-22

申请号：US14648389

申请日：2013-12-09

Applicant: DSM IP ASSETS B.V.

Inventor： Rudy Francois Maria Jozef PARTON ,  Johannes Augustinus KROON ,  Pierre Louis WOESTENBORGHS

IPC: C07C59/185 ,  C07C51/00 ,  C07C53/02

CPC classification number: C07C59/185 ,  C07C51/00 ,  C07C53/02

Abstract: The invention provides a process for the production of a biomass hydrolysate suitable for the production of levulinic acid and formic acid, a biomass hydrolysate obtainable by said process, a process for the production of levulinic acid and formic acid from said biomass, and levulinic acid and formic acid obtainable by said process. The hydrolysis process includes a single hydrolysis step wherein a slurried biomass is subjected to a temperature of between 120 and 200° C., preferably between 160 and 190° C., for a time period of between 2 and 8 hours, preferably between 20 and 140 minutes at a mineral acid concentration of between 1-15 wt %. The process can be carried out starting from lignocellulosic biomass, and also from glucose and fructose.

Abstract translation: 本发明提供一种生产适用于生产乙酰丙酸和甲酸的生物质水解产物的方法，可通过所述方法获得的生物质水解产物，从所述生物质生产乙酰丙酸和甲酸的方法，以及乙酰丙酸和 通过所述方法可获得的甲酸。 水解过程包括单一水解步骤，其中将浆化生物质经受120至200℃，优选160至190℃的温度，时间为2至8小时，优选20至 无机酸浓度为1-15％（重量）之间为140分钟。 该方法可以从木质纤维素生物质以及葡萄糖和果糖开始进行。

公开(公告)号：US20160221913A1

公开(公告)日：2016-08-04

申请号：US14760885

申请日：2014-01-16

Applicant: DSM IP ASSETS B.V.

Inventor： Rudy Francois Maria Jozef PARTON ,  Michele Catherine Christianne JANSSEN ,  Barthel ENGENDAHL ,  Johannes Gerardus DE VRIES

IPC: C07C51/373 ,  C07C51/42 ,  C07C51/12

CPC classification number: C07C51/373 ,  C07C51/09 ,  C07C51/12 ,  C07C51/14 ,  C07C51/42 ,  C07C51/44 ,  C07C51/48 ,  C07D307/32 ,  C07C59/147 ,  C07C55/14 ,  C07C57/03

Abstract: The invention relates to a process for the production of 5-formylvaleric acid and adipic acid or esters thereof from an isomeric mixture of pentenoic acid or esters thereof said mixture comprising at least 4-pentenoic acid or esters thereof, and further comprising 3-pentenoic acid and/or 2-pentenoic acid or esters thereof.The process allows for efficient production of two different intermediates for producing polyamide using a single process, with good selectivity, little waste, in an economically efficient fashion. The process is very suitable to use an isomeric pentenoic acid mixture obtained from valerolactone, and can be used to produce renewable polyamide intermediates using a single process.

Abstract translation: 本发明涉及从戊烯酸或其酯的异构体混合物生产5-甲酰戊酸和己二酸或其酯的方法，所述混合物包含至少4-戊烯酸或其酯，并且还包含3-戊烯酸 和/或2-戊烯酸或其酯。 该方法允许以经济有效的方式有效地生产用于使用单一工艺生产聚酰胺的两种不同中间体，具有良好的选择性，少量的废料。 该方法非常适合于使用由戊内酯获得的异戊烯酸混合物，并可用于使用单一工艺生产可再生聚酰胺中间体。