GB892744A - Method of making moldable composition and product resulting therefrom - Google Patents
Method of making moldable composition and product resulting therefromInfo
- Publication number
- GB892744A GB892744A GB2960258A GB2960258A GB892744A GB 892744 A GB892744 A GB 892744A GB 2960258 A GB2960258 A GB 2960258A GB 2960258 A GB2960258 A GB 2960258A GB 892744 A GB892744 A GB 892744A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plus
- sulphur
- steam
- lignocellulose
- vinsol
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H8/00—Macromolecular compounds derived from lignocellulosic materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Biochemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
A mouldable composition is made by heating an essentially dry mixture comprising comminuted lignocellulose (e.g. wood) and an agent capable of splitting at least a portion of the lignin from the lignocellulose while confining the mixture under superatmospheric pressure so as to retain gaseous products. Specified agents include steam, sulphur, ammonium hydroxide, sulphur dioxide, hydrogen sulphide, lime, formaldehyde, acetylene (or calcium carbide, which reacts with the moisture in the lignocellulose to yield acetylene), dibasic ammonium phosphate, lignin, dibasic ammonium phosphate plus lignin, steam plus sulphur plus ammonium hydroxide, steam plus sulphur plus sulphur dioxide, steam plus sulphur plus formaldehyde plus ammonium hydroxide, steam plus sulphur, sulphur plus copper sulphate, a finely divided solvent-extracted solid pine wood resin substantially free of wood rosin (e.g. that sold under the Registered Trade Mark "Vinsol") and combinations of these agents. Where steam is used, the reaction may be carried out at 300 DEG -550 DEG F. for 4-60 minutes, using saturated or superheated steam at 200-1,000 psig, and especially at 425 DEG -500 DEG F. using superheated steam. Sulphur may be used in an amount of up to 20% by weight, based on the lignocellulose. Ammonium hydroxide may be used in an amount of 2,5-10% by weight, on the same basis. Dibasic ammonium phosphate may be used in an amount of 2-4% by weight on the same basis, using a pressure of 200-1,000 psig and 300 DEG -550 DEG F., for 5-30 minutes. The reaction may be carried out in the presence of a nitrogenous base having a reactive hydrogen atom, e.g. aniline, and the reaction mixture using any of the above agents may also include zinc oxide, titanium oxide or manganese dioxide. In a preferred method an essentially dry mixture comprising comminuted lignocellulose, sulphur, a finelydivided solvent extracted solid pine wood resin substantially free of wood rosin, aniline, and zinc oxide is heated while confining the mixture under superatmospheric pressure so as to retain gaseous products. The essentially dry reaction mixture may be compressed so as to obtain a moulded product. Examples illustrate the use of sulphur, sulphur plus aqueous ammonium hydroxide, steam, dibasic ammonium phosphate plus lignin, sulphur plus copper sulphate, hydrogen sulphide, sulphur dioxide, aqueous ammonium hydroxide "Vinsol", "Vinsol" plus sulphur, "Vinsol" plus aniline plus sulphur, "Vinsol" plus aniline plus sulphur plus either zinc oxide or titanium oxide or manganese dioxide, "Vinsol" plus aniline plus sulphur plus zinc oxide plus calcium carbide, and "Vinsol" plus ammonium hydroxide plus sulphur plus zinc oxide. U.S.A. Specification 2,193,026 is referred to.ALSO:A mouldable composition is made by heating an essentially dry mixture comprising comminuted lignocellulose (e.g. wood) and an agent capable of splitting at least a portion of the lignin from the lignocellulose while confining the mixture under superatmospheric pressure so as to retain gaseous products. Specified agents include steam, sulphur, ammonium hydroxide, copper sulphate, sulphur dioxide, hydrogen sulphide, lime, formaldehyde, acetylene (or calcium carbide, which reacts with the moisture in the lignocellulose to yield acetylene), dibasic ammonium phosphate, lignin, a finely divided solvent extracted solid pine wood resin substantially free of wood rosin (e.g. that sold under the Registered Trade Mark "Vinsol") and combinations of these agents. The reaction may be carried out in the presence of a nitrogenous base having a reactive hydrogen atom, e.g. aniline, and the reaction mixture using any of the above agents may also include zinc oxide, titanium oxide or manganese dioxide. In a preferred method, an essentially dry mixture comprising comminuted lignocellulose, sulphur, a finely-divided, solvent-extracted, solid pine wood resin substantially free of wood rosin, aniline, and zinc oxide, is heated under superatmospheric pressure in a confined space. The essentially dry reaction mixture may be compressed so as to obtain a moulded product, and the reaction product, whether moulded or otherwise may be finely divided and moulded at an elevated temperature and pressure, e.g. 25-1,000 psi and 250-400 DEG F for 0,1-15 mins. U.S.A. Specification 2,193,026 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2960258A GB892744A (en) | 1958-09-16 | 1958-09-16 | Method of making moldable composition and product resulting therefrom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2960258A GB892744A (en) | 1958-09-16 | 1958-09-16 | Method of making moldable composition and product resulting therefrom |
Publications (1)
Publication Number | Publication Date |
---|---|
GB892744A true GB892744A (en) | 1962-03-28 |
Family
ID=10294141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2960258A Expired GB892744A (en) | 1958-09-16 | 1958-09-16 | Method of making moldable composition and product resulting therefrom |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB892744A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5582682A (en) * | 1988-12-28 | 1996-12-10 | Ferretti; Arthur | Process and a composition for making cellulosic composites |
US5851281A (en) * | 1997-06-17 | 1998-12-22 | K & H, Inc. | Waste material composites and method of manufacture |
WO2014140643A1 (en) * | 2013-03-15 | 2014-09-18 | Imperial Innovations Limited | Treatment |
US10982010B2 (en) | 2015-11-20 | 2021-04-20 | Ip2Ipo Innovations Limited | Process for the extraction of metal pollutants from treated cellulosic biomass |
US11118308B2 (en) | 2013-03-15 | 2021-09-14 | Ip2Ipo Innovations Limited | Treatment of lignocellulosic biomass with ionic liquid |
US11124653B2 (en) * | 2015-06-27 | 2021-09-21 | Godavari Biorefineries Ltd. | Biofiller for rubber reinforcement |
-
1958
- 1958-09-16 GB GB2960258A patent/GB892744A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5582682A (en) * | 1988-12-28 | 1996-12-10 | Ferretti; Arthur | Process and a composition for making cellulosic composites |
US5851281A (en) * | 1997-06-17 | 1998-12-22 | K & H, Inc. | Waste material composites and method of manufacture |
WO2014140643A1 (en) * | 2013-03-15 | 2014-09-18 | Imperial Innovations Limited | Treatment |
CN105229224A (en) * | 2013-03-15 | 2016-01-06 | 帝国革新有限公司 | Process |
CN105229224B (en) * | 2013-03-15 | 2018-03-16 | 帝国革新有限公司 | Processing |
US11118308B2 (en) | 2013-03-15 | 2021-09-14 | Ip2Ipo Innovations Limited | Treatment of lignocellulosic biomass with ionic liquid |
US11124653B2 (en) * | 2015-06-27 | 2021-09-21 | Godavari Biorefineries Ltd. | Biofiller for rubber reinforcement |
US10982010B2 (en) | 2015-11-20 | 2021-04-20 | Ip2Ipo Innovations Limited | Process for the extraction of metal pollutants from treated cellulosic biomass |
US11725066B2 (en) | 2015-11-20 | 2023-08-15 | Ip2Ipo Innovations Limited | Process for the extraction of metal pollutants from treated cellulosic biomass |
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