CL2023002261A1 - Método de producción de carbamato de celulosa - Google Patents
Método de producción de carbamato de celulosaInfo
- Publication number
- CL2023002261A1 CL2023002261A1 CL2023002261A CL2023002261A CL2023002261A1 CL 2023002261 A1 CL2023002261 A1 CL 2023002261A1 CL 2023002261 A CL2023002261 A CL 2023002261A CL 2023002261 A CL2023002261 A CL 2023002261A CL 2023002261 A1 CL2023002261 A1 CL 2023002261A1
- Authority
- CL
- Chile
- Prior art keywords
- cellulose
- cellulose carbamate
- water
- mixture
- urea
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 title abstract 9
- 239000001913 cellulose Substances 0.000 title abstract 9
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 title abstract 6
- 238000004519 manufacturing process Methods 0.000 title 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 3
- 239000004202 carbamide Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 229910017464 nitrogen compound Inorganic materials 0.000 abstract 3
- 150000002830 nitrogen compounds Chemical class 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- 239000008346 aqueous phase Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/86—Component parts, details or accessories; Auxiliary operations for working at sub- or superatmospheric pressure
-
- 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
- C08B15/08—Fractionation of cellulose, e.g. separation of cellulose crystallites
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Según un ejemplo de aspecto de la presente invención, se proporciona un método de producción de carbamato de celulosa en una fase acuosa. El método comprende las etapas de a) obtención de una materia prima de celulosa; b) obtención de urea; c) mezcla de celulosa y urea para obtener una mezcla; d) aplicación de la mezcla a una presión reducida menor o igual que 350 mbar(a); e) calentamiento de la mezcla hasta llegar a una temperatura de 130 a 150 °C para someter la celulosa a una reacción con urea para obtener carbamato de celulosa; f) liberación de la presión; g) recuperación del carbamato de celulosa; h) lavado del carbamato de celulosa con agua para eliminar los compuestos nitrogenados solubles en agua, donde los compuestos nitrogenados solubles en agua componen hasta 12 %, de preferencia 6 % o menos, del peso total del carbamato de celulosa y compuestos nitrogenados solubles en agua.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20215213A FI20215213A1 (en) | 2021-02-26 | 2021-02-26 | Process for preparing cellulose carbamate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CL2023002261A1 true CL2023002261A1 (es) | 2023-12-22 |
Family
ID=80628847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CL2023002261A CL2023002261A1 (es) | 2021-02-26 | 2023-07-31 | Método de producción de carbamato de celulosa |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US20240141074A1 (es) |
| EP (1) | EP4121463B1 (es) |
| JP (1) | JP2024506216A (es) |
| KR (1) | KR20230148355A (es) |
| CN (1) | CN116888158A (es) |
| BR (1) | BR112023017215A2 (es) |
| CA (1) | CA3209235C (es) |
| CL (1) | CL2023002261A1 (es) |
| FI (1) | FI20215213A1 (es) |
| TW (1) | TW202244064A (es) |
| UY (1) | UY39648A (es) |
| WO (1) | WO2022180309A1 (es) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2134825A (en) * | 1937-08-30 | 1938-11-01 | Du Pont | Chemical process |
| FI62318C (fi) * | 1981-01-27 | 1982-12-10 | Neste Oy | Foerfarande foer framstaellning av ett alkaliloesligt cellulosaderivat |
| AT384813B (de) * | 1984-10-09 | 1988-01-11 | Chemiefaser Lenzing Ag | Verfahren zur herstellung von cellulosecarbamaten |
| US5378827A (en) * | 1992-12-16 | 1995-01-03 | Zimmer Aktiengesellschaft | Process for the production of cellulose carbamate |
| DE19635473A1 (de) * | 1996-08-31 | 1998-03-05 | Zimmer Ag | Verfahren zur Herstellung von Cellulosecarbamat mit verbesserten Löseeigenschaften |
| FI112795B (fi) | 2002-01-29 | 2004-01-15 | Valtion Teknillinen | Menetelmä selluloosakarbamaatin valmistamiseksi |
| FI112869B (fi) | 2003-01-08 | 2004-01-30 | Valtion Teknillinen | Menetelmä selluloosakarbamaatin valmistamiseksi |
| DE10223174A1 (de) * | 2002-05-24 | 2003-12-11 | Fraunhofer Ges Forschung | Verfahren zur Herstellung von Cellulosecarbamatformkörpern |
| FI128164B (en) | 2018-05-22 | 2019-11-29 | Andritz Oy | A process for the production of cellulose carbamate |
| IT201900002479A1 (it) * | 2019-02-20 | 2020-08-20 | Montefibre Mae Tech S R L | Processo di produzione di derivati della cellulosa |
| FI130401B (en) | 2020-03-09 | 2023-08-14 | Infinited Fiber Company Oy | Separation of polyester-cotton blends |
-
2021
- 2021-02-26 FI FI20215213A patent/FI20215213A1/en unknown
-
2022
- 2022-02-24 TW TW111106808A patent/TW202244064A/zh unknown
- 2022-02-25 UY UY0001039648A patent/UY39648A/es unknown
- 2022-02-28 US US18/279,078 patent/US20240141074A1/en active Pending
- 2022-02-28 WO PCT/FI2022/050126 patent/WO2022180309A1/en active Application Filing
- 2022-02-28 EP EP22707793.0A patent/EP4121463B1/en active Active
- 2022-02-28 CA CA3209235A patent/CA3209235C/en active Active
- 2022-02-28 JP JP2023552147A patent/JP2024506216A/ja active Pending
- 2022-02-28 BR BR112023017215A patent/BR112023017215A2/pt unknown
- 2022-02-28 KR KR1020237032439A patent/KR20230148355A/ko unknown
- 2022-02-28 CN CN202280014664.6A patent/CN116888158A/zh active Pending
-
2023
- 2023-07-31 CL CL2023002261A patent/CL2023002261A1/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022180309A1 (en) | 2022-09-01 |
| TW202244064A (zh) | 2022-11-16 |
| EP4121463C0 (en) | 2023-12-20 |
| BR112023017215A2 (pt) | 2023-09-26 |
| JP2024506216A (ja) | 2024-02-09 |
| FI20215213A1 (en) | 2022-08-27 |
| KR20230148355A (ko) | 2023-10-24 |
| CA3209235A1 (en) | 2022-09-01 |
| US20240141074A1 (en) | 2024-05-02 |
| CN116888158A (zh) | 2023-10-13 |
| EP4121463B1 (en) | 2023-12-20 |
| EP4121463A1 (en) | 2023-01-25 |
| UY39648A (es) | 2022-09-30 |
| CA3209235C (en) | 2024-04-09 |
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