IT1201467B - Procedimento ciclico per produrre soluzioni alcaline di carbammato di cellulosa,precipitare il carbammato e recuperare i prodotti chimici - Google Patents
Procedimento ciclico per produrre soluzioni alcaline di carbammato di cellulosa,precipitare il carbammato e recuperare i prodotti chimiciInfo
- Publication number
- IT1201467B IT1201467B IT22252/85A IT2225285A IT1201467B IT 1201467 B IT1201467 B IT 1201467B IT 22252/85 A IT22252/85 A IT 22252/85A IT 2225285 A IT2225285 A IT 2225285A IT 1201467 B IT1201467 B IT 1201467B
- Authority
- IT
- Italy
- Prior art keywords
- carbamate
- precipitate
- chemical products
- alkaline solutions
- produce cellulose
- Prior art date
Links
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 title 2
- 239000012670 alkaline solution Substances 0.000 title 1
- 229920002678 cellulose Polymers 0.000 title 1
- 239000001913 cellulose Substances 0.000 title 1
- 239000002244 precipitate Substances 0.000 title 1
- 239000000047 product Substances 0.000 title 1
- 239000000126 substance Substances 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B3/00—Preparation of cellulose esters of organic acids
- C08B3/14—Preparation of cellulose esters of organic acids in which the organic acid residue contains substituents, e.g. NH2, Cl
-
- 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
- C08B15/05—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur
- C08B15/06—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur containing nitrogen, e.g. carbamates
-
- 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
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Artificial Filaments (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI843813A FI69852C (fi) | 1984-09-27 | 1984-09-27 | Cykliskt foerfarande foer framstaellning av en alkaliloesning av cellulosakarbamat foer utfaellning av karbamatet och foeraotervinning av kemikalierna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8522252A0 IT8522252A0 (it) | 1985-09-24 |
| IT1201467B true IT1201467B (it) | 1989-02-02 |
Family
ID=8519661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT22252/85A IT1201467B (it) | 1984-09-27 | 1985-09-24 | Procedimento ciclico per produrre soluzioni alcaline di carbammato di cellulosa,precipitare il carbammato e recuperare i prodotti chimici |
Country Status (17)
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215125A (en) * | 1987-03-13 | 1993-06-01 | Teepak, Inc. | Cellulose aminomethanate sausage casings |
| US4789006A (en) * | 1987-03-13 | 1988-12-06 | Teepak, Inc. | Cellulose aminomethanate sausage casings |
| IE66891B1 (en) * | 1991-02-15 | 1996-02-07 | Ashfield Eng Co Wexford Ltd | An adjustment mechanism for furniture |
| DE19721609A1 (de) * | 1997-05-23 | 1998-11-26 | Zimmer Ag | Verfahren und Vorrichtung zum Verspinnen von Cellulosecarbamat-Lösungen |
| DE19757958A1 (de) * | 1997-12-24 | 1999-07-01 | Lurgi Zimmer Ag | Verfahren zur Herstellung einer Cellulosecarbamatlösung |
| DE102004007616B4 (de) * | 2004-02-17 | 2005-12-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Herstellung von Fasern und anderen Formkörpern aus Cellulosecarbamat und/oder regenerierter Cellulose |
| CN100554318C (zh) * | 2007-06-20 | 2009-10-28 | 中国科学院新疆理化技术研究所 | 低碱含量纤维素氨基甲酸酯溶液的制备方法 |
| CN105517955A (zh) | 2013-07-01 | 2016-04-20 | Ihk纤维公司 | 纤维素纺丝过程中的碱再循环 |
| EP3969645A4 (en) * | 2019-05-15 | 2023-06-21 | TreeToTextile AB | RECOVERY OF CHEMICALS IN CELLULOSE SPINNING |
| FI20225011A1 (en) | 2022-01-07 | 2023-07-08 | Infinited Fiber Company Oy | Cellulose-based textile fibers |
| CN117306007A (zh) * | 2023-09-28 | 2023-12-29 | 赣南师范大学 | 一种凝固浴及其应用方法和再生方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2103639A (en) * | 1934-02-09 | 1937-12-28 | Brown Co | Precipitation or setting of hydroxycellulose ethers from alkaline aqueous solutions |
| BE413827A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1935-02-14 | |||
| NL55623C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1935-05-15 | |||
| GB516672A (en) * | 1937-08-30 | 1940-01-09 | Du Pont | Improvements in or relating to the production of cellulose derivatives |
| US2283809A (en) * | 1940-02-24 | 1942-05-19 | Du Pont | Method of coagulating cellulosic solutions |
| US2371359A (en) * | 1941-12-30 | 1945-03-13 | Battelle Memorial Institute | Method of producing solution containing cellulosic material |
| FI62318C (fi) * | 1981-01-27 | 1982-12-10 | Neste Oy | Foerfarande foer framstaellning av ett alkaliloesligt cellulosaderivat |
| FI64603C (fi) * | 1981-12-30 | 1983-12-12 | Neste Oy | Foerfarande foer utfaellning av cellulosaderivat |
| FI67561C (fi) * | 1982-12-08 | 1985-04-10 | Neste Oy | Foerfarande foer upploesning av cellulosakarbamat |
| FI66624C (fi) * | 1983-11-02 | 1984-11-12 | Neste Oy | Foerfarande foer framstaellning av cellulosakarbamatfibrer eller -filmer |
| FI67562C (fi) * | 1984-03-12 | 1985-04-10 | Neste Oy | Foerfarande foer framstaellning av cellulosakarbamat |
-
1984
- 1984-09-27 FI FI843813A patent/FI69852C/fi not_active IP Right Cessation
-
1985
- 1985-09-18 ZA ZA857171A patent/ZA857171B/xx unknown
- 1985-09-20 CS CS856732A patent/CS673285A2/cs unknown
- 1985-09-23 IN IN674/CAL/85A patent/IN164446B/en unknown
- 1985-09-24 IT IT22252/85A patent/IT1201467B/it active
- 1985-09-24 US US06/779,702 patent/US4639514A/en not_active Expired - Fee Related
- 1985-09-25 DD DD85281023A patent/DD238983A5/de not_active IP Right Cessation
- 1985-09-26 NO NO853793A patent/NO162766C/no unknown
- 1985-09-26 DE DE19853534371 patent/DE3534371A1/de active Granted
- 1985-09-26 SE SE8504456A patent/SE461098B/xx not_active IP Right Cessation
- 1985-09-26 BR BR8504745A patent/BR8504745A/pt unknown
- 1985-09-26 AT AT0280885A patent/AT389328B/de not_active IP Right Cessation
- 1985-09-26 CA CA000491570A patent/CA1236094A/en not_active Expired
- 1985-09-27 FR FR8514367A patent/FR2570706B1/fr not_active Expired
- 1985-09-27 JP JP60214408A patent/JPS6185451A/ja active Granted
- 1985-09-27 RO RO85120222A patent/RO92932A/ro unknown
- 1985-09-27 GB GB08523914A patent/GB2164942B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2164942B (en) | 1988-03-30 |
| IN164446B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1989-03-18 |
| ZA857171B (en) | 1986-05-28 |
| CS673285A2 (en) | 1991-01-15 |
| FI69852B (fi) | 1985-12-31 |
| CA1236094A (en) | 1988-05-03 |
| JPH0455621B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-09-03 |
| DD238983A5 (de) | 1986-09-10 |
| ATA280885A (de) | 1989-04-15 |
| BR8504745A (pt) | 1986-07-22 |
| DE3534371C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-11-24 |
| RO92932A (ro) | 1987-11-30 |
| US4639514A (en) | 1987-01-27 |
| JPS6185451A (ja) | 1986-05-01 |
| AT389328B (de) | 1989-11-27 |
| DE3534371A1 (de) | 1986-04-17 |
| SE8504456L (sv) | 1986-03-28 |
| FR2570706A1 (fr) | 1986-03-28 |
| SE8504456D0 (sv) | 1985-09-26 |
| FI843813A0 (fi) | 1984-09-27 |
| NO162766B (no) | 1989-11-06 |
| NO162766C (no) | 1990-02-14 |
| IT8522252A0 (it) | 1985-09-24 |
| GB8523914D0 (en) | 1985-10-30 |
| FI69852C (fi) | 1986-05-26 |
| SE461098B (sv) | 1990-01-08 |
| FR2570706B1 (fr) | 1988-05-27 |
| NO853793L (no) | 1986-04-01 |
| GB2164942A (en) | 1986-04-03 |
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