ES486267A1 - Un metodo mejorado de transformar quimicamente lignocelulosaen una forma de fibras separadas - Google Patents
Un metodo mejorado de transformar quimicamente lignocelulosaen una forma de fibras separadasInfo
- Publication number
- ES486267A1 ES486267A1 ES486267A ES486267A ES486267A1 ES 486267 A1 ES486267 A1 ES 486267A1 ES 486267 A ES486267 A ES 486267A ES 486267 A ES486267 A ES 486267A ES 486267 A1 ES486267 A1 ES 486267A1
- Authority
- ES
- Spain
- Prior art keywords
- lignocellulose
- catalyst
- liquid
- molar
- cooking
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 239000003054 catalyst Substances 0.000 title abstract 3
- 239000000203 mixture Substances 0.000 title abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title 1
- 238000004537 pulping Methods 0.000 title 1
- 239000007788 liquid Substances 0.000 abstract 3
- 238000010411 cooking Methods 0.000 abstract 2
- 239000000835 fiber Substances 0.000 abstract 2
- 238000010304 firing Methods 0.000 abstract 2
- 229920005610 lignin Polymers 0.000 abstract 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 abstract 1
- 229920003043 Cellulose fiber Polymers 0.000 abstract 1
- 229920002488 Hemicellulose Polymers 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000001450 anions Chemical class 0.000 abstract 1
- 239000003125 aqueous solvent Substances 0.000 abstract 1
- 210000002421 cell wall Anatomy 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 235000000346 sugar Nutrition 0.000 abstract 1
- 150000008163 sugars Chemical class 0.000 abstract 1
- 230000001131 transforming effect Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment
Landscapes
- Paper (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Un método mejorado de transformar químicamente lignocelulosa en una forma de fibras separadas, que comprende: cocer lignocelulosa con una mezcla disolvente acuosa de al menos cuatro veces el peso de la lignocelulosa, preferentemente en una relación de 1:5 a 1:10 con respecto a la relación madera: líquido, comprendiendo dicha mezcla de 1 a 4 volúmenes de un alcohol alifático inferior por volumen de agua, y un catalizador en una concentración entre 0,001 molar y 1, 0 molar, con o sin una pequeña cantidad de ácido mineral añadido, que preferiblemente, pero no necesariamente, tenga la misma especie de anión que el catalizador, estando la temperatura de cocción entre alrededor de 130ºC y 210ºC, preferiblemente entre 180ºC y 200ºC, y siendo el tiempo de cocción no superior a dos horas, y suficientemente para efectuar al menos la despolimerización parcial y la disolución de la lignina, las hemicelulosas y otras materiales de la pared celular que alojan a las fibras de celulosa, recuperar las fibras separadas del líquido residual, y recuperar los disolventes de cocción y de lavado, ligninas, y azúcares del líquido residual y agotado.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA316,951A CA1131415A (en) | 1978-11-27 | 1978-11-27 | Pulping of lignocellulose with aqueous methanol/ catalyst mixture |
| DE2920731A DE2920731C2 (de) | 1978-11-27 | 1979-05-22 | Lignocelluloseaufschlußverfahren mit einem Gemisch von Wasser und niedrig molekularem aliphatischem Alkohol und Metallsalz |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES486267A1 true ES486267A1 (es) | 1980-05-16 |
Family
ID=25668832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES486267A Expired ES486267A1 (es) | 1978-11-27 | 1979-11-23 | Un metodo mejorado de transformar quimicamente lignocelulosaen una forma de fibras separadas |
Country Status (16)
| Country | Link |
|---|---|
| AR (1) | AR223198A1 (es) |
| AT (1) | AT372991B (es) |
| AU (1) | AU528703B2 (es) |
| BR (1) | BR7907651A (es) |
| DD (1) | DD147259A5 (es) |
| ES (1) | ES486267A1 (es) |
| FI (1) | FI69129C (es) |
| FR (1) | FR2442297A1 (es) |
| GB (1) | GB2040332B (es) |
| NO (1) | NO154274C (es) |
| PH (1) | PH16526A (es) |
| PL (1) | PL131834B1 (es) |
| PT (1) | PT70475A (es) |
| RO (1) | RO77556A (es) |
| SE (1) | SE436899B (es) |
| YU (1) | YU41897B (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4594130A (en) * | 1978-11-27 | 1986-06-10 | Chang Pei Ching | Pulping of lignocellulose with aqueous alcohol and alkaline earth metal salt catalyst |
| CA1275286C (en) * | 1986-05-29 | 1990-10-16 | Edward A. Delong | Method for extracting the chemical components from dissociated lignocellulosic material |
| CN101680165B (zh) * | 2007-06-20 | 2013-01-30 | 龙树能源私营公司 | 用于分离生物质组分的单步方法 |
| CN106574440B (zh) | 2014-07-10 | 2020-09-11 | 利芙科学私人有限公司 | 用于水解木质纤维素材料的方法 |
| CA2953702A1 (en) * | 2014-07-10 | 2016-01-14 | Leaf Sciences Pty Ltd | Methods for treating lignocellulosic material |
| CN114645479B (zh) * | 2020-12-19 | 2023-07-25 | 山东洲星天然物提取智能设备有限公司 | 一种纸浆的制备方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| YU41117B (en) * | 1977-08-31 | 1986-12-31 | Paszner Laszlo | Process for obtaining sugovar, lingnig and cellulose from lignocellulose |
-
1979
- 1979-11-14 AT AT0726179A patent/AT372991B/de not_active IP Right Cessation
- 1979-11-19 YU YU2822/79A patent/YU41897B/xx unknown
- 1979-11-19 NO NO793738A patent/NO154274C/no unknown
- 1979-11-20 PT PT70475A patent/PT70475A/pt unknown
- 1979-11-21 DD DD79217045A patent/DD147259A5/de not_active IP Right Cessation
- 1979-11-21 AU AU53056/79A patent/AU528703B2/en not_active Ceased
- 1979-11-22 SE SE7909674A patent/SE436899B/sv not_active IP Right Cessation
- 1979-11-23 PL PL1979219837A patent/PL131834B1/pl unknown
- 1979-11-23 FI FI793678A patent/FI69129C/fi not_active IP Right Cessation
- 1979-11-23 ES ES486267A patent/ES486267A1/es not_active Expired
- 1979-11-24 RO RO7999349A patent/RO77556A/ro unknown
- 1979-11-26 FR FR7929082A patent/FR2442297A1/fr active Granted
- 1979-11-26 PH PH23330A patent/PH16526A/en unknown
- 1979-11-26 BR BR7907651A patent/BR7907651A/pt not_active IP Right Cessation
- 1979-11-27 AR AR279044A patent/AR223198A1/es active
- 1979-11-27 GB GB7940923A patent/GB2040332B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ATA726179A (de) | 1983-04-15 |
| BR7907651A (pt) | 1980-08-26 |
| GB2040332B (en) | 1983-09-07 |
| SE7909674L (sv) | 1980-05-28 |
| AR223198A1 (es) | 1981-07-31 |
| FI69129B (fi) | 1985-08-30 |
| AT372991B (de) | 1983-12-12 |
| AU528703B2 (en) | 1983-05-12 |
| RO77556A (ro) | 1982-07-06 |
| FR2442297B1 (es) | 1983-05-13 |
| PL219837A1 (es) | 1980-12-15 |
| DD147259A5 (de) | 1981-03-25 |
| FI69129C (fi) | 1985-12-10 |
| PT70475A (en) | 1979-12-01 |
| PH16526A (en) | 1983-11-10 |
| PL131834B1 (en) | 1985-01-31 |
| YU41897B (en) | 1988-02-29 |
| NO154274C (no) | 1986-08-20 |
| FR2442297A1 (fr) | 1980-06-20 |
| FI793678A7 (fi) | 1980-05-28 |
| GB2040332A (en) | 1980-08-28 |
| YU282279A (en) | 1982-10-31 |
| SE436899B (sv) | 1985-01-28 |
| NO793738L (no) | 1980-05-28 |
| NO154274B (no) | 1986-05-12 |
| AU5305679A (en) | 1981-06-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19990201 |