HUP9902022A2 - Eljárás cellulózszármazékok előállítására - Google Patents
Eljárás cellulózszármazékok előállításáraInfo
- Publication number
- HUP9902022A2 HUP9902022A2 HU9902022A HUP9902022A HUP9902022A2 HU P9902022 A2 HUP9902022 A2 HU P9902022A2 HU 9902022 A HU9902022 A HU 9902022A HU P9902022 A HUP9902022 A HU P9902022A HU P9902022 A2 HUP9902022 A2 HU P9902022A2
- Authority
- HU
- Hungary
- Prior art keywords
- cellulose
- alkali
- ammonia
- substitution
- impregnated
- Prior art date
Links
- 239000001913 cellulose Substances 0.000 title abstract 10
- 229920002678 cellulose Polymers 0.000 title abstract 10
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 6
- 239000003513 alkali Substances 0.000 abstract 5
- 238000000034 method Methods 0.000 abstract 5
- 229910021529 ammonia Inorganic materials 0.000 abstract 3
- 239000008186 active pharmaceutical agent Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000004880 explosion Methods 0.000 abstract 2
- 238000006467 substitution reaction Methods 0.000 abstract 2
- 238000007259 addition reaction Methods 0.000 abstract 1
- 239000012670 alkaline solution Substances 0.000 abstract 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical group OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 229960001031 glucose Drugs 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 230000000476 thermogenic effect Effects 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
- C08B1/06—Rendering cellulose suitable for etherification
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
- C08B1/08—Alkali cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B9/00—Cellulose xanthate; Viscose
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
A találmány tárgya eljárás ammóniaexplózióval aktivált cellűlózelőállítására. Ebben az eljárásban a) a celűlózt alkáliőldattalimpregnálják; b) az impregnált cellűlózt tetszőleges mértékbenkipréselik; és c) a cellűlózt szűbsztitúciós vagy addíciós reakcióbaviszik, s így DS szűbsztitúciós főkú cellűlózszármazékőt kapnak. Azeljárásra jellemző, hőgy ammóniával aktivált cellűlózt alkalmaznak, ésa c) lépés kezdetén az alkálinak az AHG-hőz (anhidrőglükóz-egységhez)viszőnyítőtt mőláris aránya a cellűlózban a DS kétszeresét nem haladjameg. Az alkalmazőtt alkáliőldat kőncentrációja körülbelül 12 tömeg%vagy ennél kisebb. Az eljárás előnyei: az ammóniaexplóziókövetkeztében a cellűlóz szerkezete fellazűl, és az alkálilúg számárakönnyen hőzzáférhetővé válik, így az alkáli-cellűlóz képződése azeddiginél könnyebb és teljesebb, s így a cellűlóz-alkálisó képződésehőmőgénebb körülmények között megy végbe. Az eljárás különlegeselőnye, hőgy szűbsztöchiőmetrikűs arányban alkalmazőtt alkálilúggal ismegvalósítható. A fenti tényezők következtében a termék egységesebb, ahőzamők jőbbak, a gyártási költségek alacsőnyabbak. Ehhez járűlnak akörnyezetvédelmi szempőntők: a találmány példáűl lehetővé teszicsekélyebb mennyiségű szennyvíz képződését és tisztítását. ŕ
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19646213A DE19646213C2 (de) | 1996-11-08 | 1996-11-08 | Verfahren zur Herstellung von Cellulosederivaten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| HUP9902022A2 true HUP9902022A2 (hu) | 1999-10-28 |
| HUP9902022A3 HUP9902022A3 (en) | 1999-11-29 |
Family
ID=7811107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HU9902022A HUP9902022A3 (en) | 1996-11-08 | 1997-11-04 | Method for producing cellulose derivatives |
Country Status (17)
| Country | Link |
|---|---|
| EP (1) | EP0873364B1 (hu) |
| JP (1) | JPH11504071A (hu) |
| KR (1) | KR19990077026A (hu) |
| AT (1) | ATE212999T1 (hu) |
| AU (1) | AU699832B2 (hu) |
| BR (1) | BR9707116A (hu) |
| CA (1) | CA2241800A1 (hu) |
| CZ (1) | CZ289562B6 (hu) |
| DE (2) | DE19646213C2 (hu) |
| EA (1) | EA001008B1 (hu) |
| HU (1) | HUP9902022A3 (hu) |
| ID (1) | ID20424A (hu) |
| MX (1) | MX9805511A (hu) |
| NZ (1) | NZ330917A (hu) |
| PL (1) | PL327691A1 (hu) |
| TR (1) | TR199801312T1 (hu) |
| WO (1) | WO1998021246A1 (hu) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2285500A (en) * | 1998-12-23 | 2000-07-31 | Rhodia Acetow Gmbh | Method for producing cellulose formates |
| JP5252911B2 (ja) * | 2007-12-27 | 2013-07-31 | 信越化学工業株式会社 | 水溶性セルロースエーテルの製造方法 |
| US9289168B2 (en) | 2008-12-29 | 2016-03-22 | Medtronic Minimed, Inc. | System and/or method for glucose sensor calibration |
| US10471207B2 (en) | 2008-12-29 | 2019-11-12 | Medtronic Minimed, Inc. | System and/or method for glucose sensor calibration |
| JP5503609B2 (ja) | 2011-09-08 | 2014-05-28 | 信越化学工業株式会社 | 非イオン性水溶性セルロースエーテルの製造方法 |
| KR101295370B1 (ko) * | 2012-01-10 | 2013-08-12 | 한국화학연구원 | 페닐메틸셀룰로오스의 신규한 제조방법 |
| EA020941B1 (ru) * | 2012-07-10 | 2015-02-27 | Сумгаитский Государственный Университет | Способ получения активированной целлюлозы |
| WO2018184146A1 (zh) * | 2017-04-05 | 2018-10-11 | 深圳市佩成科技有限责任公司 | 氰乙基纤维素的制备方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3241720A1 (de) * | 1982-11-11 | 1984-05-17 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von celluloseethern aus mit ammoniak aktivierter cellulose |
| DE4329937C1 (de) * | 1993-09-04 | 1994-11-24 | Rhodia Ag Rhone Poulenc | Verfahren zur Behandlung von Cellulose zu deren Aktivierung für nachfolgende chemische Reaktionen |
-
1996
- 1996-11-08 DE DE19646213A patent/DE19646213C2/de not_active Expired - Fee Related
-
1997
- 1997-11-04 EA EA199800629A patent/EA001008B1/ru not_active IP Right Cessation
- 1997-11-04 KR KR1019980705158A patent/KR19990077026A/ko not_active Application Discontinuation
- 1997-11-04 WO PCT/EP1997/006089 patent/WO1998021246A1/de active IP Right Grant
- 1997-11-04 CA CA002241800A patent/CA2241800A1/en not_active Abandoned
- 1997-11-04 AT AT97950091T patent/ATE212999T1/de not_active IP Right Cessation
- 1997-11-04 JP JP10522119A patent/JPH11504071A/ja active Pending
- 1997-11-04 PL PL97327691A patent/PL327691A1/xx unknown
- 1997-11-04 NZ NZ330917A patent/NZ330917A/en unknown
- 1997-11-04 EP EP97950091A patent/EP0873364B1/de not_active Expired - Lifetime
- 1997-11-04 AU AU53169/98A patent/AU699832B2/en not_active Ceased
- 1997-11-04 HU HU9902022A patent/HUP9902022A3/hu unknown
- 1997-11-04 ID IDW980039A patent/ID20424A/id unknown
- 1997-11-04 TR TR1998/01312T patent/TR199801312T1/xx unknown
- 1997-11-04 BR BR9707116A patent/BR9707116A/pt not_active Application Discontinuation
- 1997-11-04 DE DE59706307T patent/DE59706307D1/de not_active Expired - Fee Related
- 1997-11-04 CZ CZ19982139A patent/CZ289562B6/cs not_active IP Right Cessation
-
1998
- 1998-07-07 MX MX9805511A patent/MX9805511A/es not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EA001008B1 (ru) | 2000-08-28 |
| EP0873364A1 (de) | 1998-10-28 |
| NZ330917A (en) | 1999-10-28 |
| CZ213998A3 (cs) | 1998-10-14 |
| WO1998021246A1 (de) | 1998-05-22 |
| DE59706307D1 (de) | 2002-03-21 |
| DE19646213A1 (de) | 1998-05-14 |
| JPH11504071A (ja) | 1999-04-06 |
| CA2241800A1 (en) | 1998-05-22 |
| AU699832B2 (en) | 1998-12-17 |
| MX9805511A (es) | 1998-11-30 |
| ATE212999T1 (de) | 2002-02-15 |
| KR19990077026A (ko) | 1999-10-25 |
| CZ289562B6 (cs) | 2002-02-13 |
| HUP9902022A3 (en) | 1999-11-29 |
| EP0873364B1 (de) | 2002-02-06 |
| EA199800629A1 (ru) | 1998-12-24 |
| BR9707116A (pt) | 1999-07-20 |
| DE19646213C2 (de) | 1999-02-18 |
| PL327691A1 (en) | 1998-12-21 |
| AU5316998A (en) | 1998-06-03 |
| ID20424A (id) | 1998-12-10 |
| TR199801312T1 (xx) | 1999-01-18 |
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