EP3215247A1 - Procédé d'obtention de produits de valeur aromatiques à partir de compositions contenant de la lignine - Google Patents

Procédé d'obtention de produits de valeur aromatiques à partir de compositions contenant de la lignine

Info

Publication number
EP3215247A1
EP3215247A1 EP15790940.9A EP15790940A EP3215247A1 EP 3215247 A1 EP3215247 A1 EP 3215247A1 EP 15790940 A EP15790940 A EP 15790940A EP 3215247 A1 EP3215247 A1 EP 3215247A1
Authority
EP
European Patent Office
Prior art keywords
activated carbon
aqueous
lignin
aromatic
aromatic compounds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15790940.9A
Other languages
German (de)
English (en)
Inventor
Ralf Pelzer
Carolin REGENBRECHT
Chung Huan Wong
Gabriele Iffland
Agnes Voitl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of EP3215247A1 publication Critical patent/EP3215247A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/79—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/52—Compounds having —CHO groups bound to carbon atoms of six—membered aromatic rings
    • C07C47/575—Compounds having —CHO groups bound to carbon atoms of six—membered aromatic rings containing ether groups, groups, groups, or groups
    • C07C47/58—Vanillin

Definitions

  • Another disadvantage of obtaining aromatic products of value with the aid of ion-exchange resins is that it is a chemical process and that the products thus obtained can no longer be classified as "natural".
  • the ion exchangers have no sufficient selectivity and effectiveness in the adsorption of aromatic components, since the inorganic substances present in the alkaline, lignin-containing solutions are also bound and thus a large part of the adsorption capacity of the ion exchangers is lost.
  • the aqueous dilute acid if appropriate after a washing step, will be passed through the adsorbent arrangement in ascending or descending order to protonate at most any bound anionic aromatic valuable substances.
  • the amount of aqueous dilute acid is usually 0.1 to 10 times the bed volume, more preferably 0.5 to 5 times the bed volume.
  • the passage of the aqueous dilute acid takes place in usually with a specific flow rate (specific load) in the range of 0.5 to 10 BV / h, in particular in the range of 1 to 8 BV / h.
  • the organic solvent used for desorption is at least 80
  • the eluate obtained in the elution is worked up to obtain the aromatic valuable substances in the usual way. If the eluate contains acid you will find it in the First remove rule, for example, by an aqueous-extractive workup, or neutralize by adding base and separate the resulting salts. Optionally, one may previously concentrate the eluate, for example by removing the solvent in a conventional evaporator arrangement. The resulting condensate can be reused, for example, in a subsequent elution.
  • Example II.2 Adsorption and desorption of aromatic valuable substances such as vanillin, acetovanillon, guaiacol and 3,3'-dimethoxy-4,4'-dihydroxystilbene on activated charcoal
  • black liquor from pulp production was used.
  • HPLC analysis of the filtered black liquor yielded the following concentrations of the organic components: 457 mg / kg vanillin, 349 mg / kg acetovanillon, 506 mg / kg guaiacol, and 308 mg / kg 3,3'-dimethoxy-4,4'-dihydroxystilbene ,

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Compounds Of Unknown Constitution (AREA)

Abstract

La présente invention concerne un procédé de récupération de composés aromatiques à partir de compositions alcalines aqueuses contenant de la lignine ayant un pH d'au moins pH 10, en particulier d'au moins un pH 11, en particulier d'au moins pH 12. L'invention est caractérisée en ce que la composition alcaline aqueuse contenant de la lignine est traitée avec du charbon actif, le charbon actif est séparé de la composition alcaline aqueuse contenant de la lignine, puis le charbon actif est soumis à une étape de désorption pour récupérer les composés aromatiques, l'étape de désorption comportant le traitement du charbon actif (i) avec un solvant organique qui est sensiblement constitué d'un ou de plusieurs hydrocarbures aromatiques ou qui est un mélange d'au moins un hydrocarbure aromatique avec au moins un alcanol en C1 à C4, ou (ii) avec de la vapeur d'eau, un produit d'élution étant obtenu, qui contient les composés aromatiques.
EP15790940.9A 2014-11-07 2015-11-06 Procédé d'obtention de produits de valeur aromatiques à partir de compositions contenant de la lignine Withdrawn EP3215247A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14192283 2014-11-07
PCT/EP2015/075869 WO2016071476A1 (fr) 2014-11-07 2015-11-06 Procédé d'obtention de produits de valeur aromatiques à partir de compositions contenant de la lignine

Publications (1)

Publication Number Publication Date
EP3215247A1 true EP3215247A1 (fr) 2017-09-13

Family

ID=51900177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15790940.9A Withdrawn EP3215247A1 (fr) 2014-11-07 2015-11-06 Procédé d'obtention de produits de valeur aromatiques à partir de compositions contenant de la lignine

Country Status (6)

Country Link
US (1) US20170334824A1 (fr)
EP (1) EP3215247A1 (fr)
JP (1) JP2017533236A (fr)
CN (1) CN107074710A (fr)
MX (1) MX2017005876A (fr)
WO (1) WO2016071476A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6741687B2 (ja) 2015-05-04 2020-08-19 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ メロナールの調製方法
CN107848929A (zh) 2015-07-15 2018-03-27 巴斯夫欧洲公司 制备芳基丙烯的方法
US10202323B2 (en) 2015-07-15 2019-02-12 Basf Se Process for preparing an arylpropene
PL3370540T3 (pl) 2015-11-06 2025-11-12 Flavologic Gmbh Układ adsorpcji i sposób obsługi układu adsorpcji
DE102016105997A1 (de) * 2016-04-01 2017-10-05 Flavologic Gmbh Adsorptionssystem und Verfahren zum Betreiben eines Adsorptionssystems
ES2899827T3 (es) 2015-12-08 2022-03-14 Basf Se Material zeolítico que contiene estaño y que tiene una estructura de marco BEA
US10981885B2 (en) 2016-05-31 2021-04-20 Basf Se Tetrahydropyranyl lower alkyl esters and the production of same using a ketene compound
CN114514218A (zh) * 2019-07-16 2022-05-17 斯佩罗可再生能源有限责任公司 从生物质中提取和纯化天然阿魏酸盐和香豆酸盐

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO792311L (no) * 1978-07-27 1980-01-29 Erich Hayek Fremgangsmaate for utnyttelse av sulfittavlut fra industriell cellulosefremstilling
US5068184A (en) * 1987-07-28 1991-11-26 Escagenetics, Inc. Flavor composition and method
EP2157184B1 (fr) * 2007-04-19 2020-11-18 Laboratorios Minkab, S.A. de C.V. Procédé de production de vanilline à partir de micro-organismes immobilisés par culture de surface

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2016071476A1 *

Also Published As

Publication number Publication date
MX2017005876A (es) 2017-06-26
CN107074710A (zh) 2017-08-18
WO2016071476A1 (fr) 2016-05-12
JP2017533236A (ja) 2017-11-09
US20170334824A1 (en) 2017-11-23

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