LV14686A - Levoglikozāna iegūšanas paņēmiens - Google Patents

Levoglikozāna iegūšanas paņēmiens

Info

Publication number
LV14686A
LV14686A LVP-13-38A LV130038A LV14686A LV 14686 A LV14686 A LV 14686A LV 130038 A LV130038 A LV 130038A LV 14686 A LV14686 A LV 14686A
Authority
LV
Latvia
Prior art keywords
levoglucosan
raw material
cellulose
producing
producing levoglucosan
Prior art date
Application number
LVP-13-38A
Other languages
English (en)
Other versions
LV14686B (lv
Inventor
Aivars ŽŪRIŅŠ
Jānis RIŽIKOVS
Jānis ZANDERSONS
Original Assignee
LATVIJAS VALSTS KOKSNES ĶĪMIJAS INSTITŪTS, Atvasināta publiska persona
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 LATVIJAS VALSTS KOKSNES ĶĪMIJAS INSTITŪTS, Atvasināta publiska persona filed Critical LATVIJAS VALSTS KOKSNES ĶĪMIJAS INSTITŪTS, Atvasināta publiska persona
Priority to LVP-13-38A priority Critical patent/LV14686B/lv
Publication of LV14686A publication Critical patent/LV14686A/lv
Publication of LV14686B publication Critical patent/LV14686B/lv
Priority to EP13004161.9A priority patent/EP2784079A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H1/00—Processes for the preparation of sugar derivatives
    • C07H1/06—Separation; Purification
    • C07H1/08—Separation; Purification from natural products
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H3/00—Compounds containing only hydrogen atoms and saccharide radicals having only carbon, hydrogen, and oxygen atoms
    • C07H3/10—Anhydrosugars, e.g. epoxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Molecular Biology (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Izgudrojums attiecas uz celulozi saturošu izejvielu apstrādi, proti, levoglikozāna ieguvi no koksnes izejvielām. Izejviela vispirms tiek apstrādāta ar 10-40% sērskābi, hidrolizēta ar pārkarsētu ūdens tvaiku 110-1400C temperatūrā un ar spiedienu 0,2-0,5 MPa. Pēc tam iegūto produktu mazgā ar demineralizētu ūdeni līdz pH 3,5. Minētā metode ļauj iegūt levoglikozānu līdz 30,9% no celulozes daudzuma.
LVP-13-38A 2013-03-25 2013-03-25 Levoglikozāna iegūšanas paņēmiens LV14686B (lv)

Priority Applications (2)

Application Number Priority Date Filing Date Title
LVP-13-38A LV14686B (lv) 2013-03-25 2013-03-25 Levoglikozāna iegūšanas paņēmiens
EP13004161.9A EP2784079A1 (en) 2013-03-25 2013-08-23 Method for producing levoglucosan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LVP-13-38A LV14686B (lv) 2013-03-25 2013-03-25 Levoglikozāna iegūšanas paņēmiens

Publications (2)

Publication Number Publication Date
LV14686A true LV14686A (lv) 2013-06-20
LV14686B LV14686B (lv) 2013-08-20

Family

ID=49036412

Family Applications (1)

Application Number Title Priority Date Filing Date
LVP-13-38A LV14686B (lv) 2013-03-25 2013-03-25 Levoglikozāna iegūšanas paņēmiens

Country Status (2)

Country Link
EP (1) EP2784079A1 (lv)
LV (1) LV14686B (lv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114560960B (zh) * 2022-03-10 2023-04-14 广东省科学院生物与医学工程研究所 一种纤维素催化热解制备左旋葡聚糖的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU503906A1 (ru) 1974-03-12 1976-02-25 Ордена Трудового Красного Знамени Институт Химии Древесины Способ получени левоглюкозана
DE3803339A1 (de) * 1988-02-04 1989-08-10 Suedzucker Ag Verfahren zur herstellung von 1,6-ss-d-anhydroglucopyranose (levoglucosan) in hoher reinheit
CN102020722B (zh) 2010-12-10 2012-12-12 华北电力大学 一种纤维素催化热解制备左旋葡聚糖的方法

Also Published As

Publication number Publication date
LV14686B (lv) 2013-08-20
EP2784079A1 (en) 2014-10-01

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