LV14686A - Levoglikozāna iegūšanas paņēmiens - Google Patents
Levoglikozāna iegūšanas paņēmiensInfo
- 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
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.
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)
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)
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 |
-
2013
- 2013-03-25 LV LVP-13-38A patent/LV14686B/lv unknown
- 2013-08-23 EP EP13004161.9A patent/EP2784079A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
LV14686B (lv) | 2013-08-20 |
EP2784079A1 (en) | 2014-10-01 |
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