Methods for converting waste streams from the wood pulping industry to high-value surfactants are described. For example, isolated lignin and lignosulfonate or waste streams containing lignin and lignosulfonate can be directly converted to surfactants, or they can be first converted to methylol deri
Methods for converting waste streams from the wood pulping industry to high-value surfactants are described. For example, isolated lignin and lignosulfonate or waste streams containing lignin and lignosulfonate can be directly converted to surfactants, or they can be first converted to methylol derivatives and treated with further reagents to produce surfactants.
대표청구항▼
1. A method of preparing a surfactant, the method comprising: providing a lignin-based material containing one or more methylol groups; andadding a carbohydrate or carbohydrate derivative to the lignin-based material, in a ratio of lignin-based material to carbohydrate or carbohydrate derivative of
1. A method of preparing a surfactant, the method comprising: providing a lignin-based material containing one or more methylol groups; andadding a carbohydrate or carbohydrate derivative to the lignin-based material, in a ratio of lignin-based material to carbohydrate or carbohydrate derivative of about 1:1 to about 1:1.3 based on moles of methylol groups in the lignin-based material to moles of the carbohydrate or carbohydrate derivative, in the presence of a catalyst to produce the surfactant. 2. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material comprises adding the carbohydrate or carbohydrate derivative to a lignin methylol, lignosulphonate methylol, or a combination thereof. 3. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material comprises adding a dextrose syrup, glucose syrup, or sucrose syrup to the lignin-based material. 4. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material comprises adding a polyhydroxy carboxylic acid, a hydroxyl polycarboxylic acid, an aminocarboxylic acid, a lithium, sodium, potassium, ammonium or calcium salt thereof, or other natural carboxylic acid or salt thereof derived by oxidation or fermentation of a carbohydrate to the lignin-based material. 5. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material comprises adding the carbohydrate or carbohydrate derivative to the lignin-based material in a ratio of lignin-based material to carbohydrate or carbohydrate derivative of about 1:1 based on moles of methylol groups in the lignin-based material to moles of the carbohydrate or carbohydrate derivative. 6. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material comprises adding the carbohydrate or carbohydrate derivative to the lignin-based material in a ratio of lignin-based material to carbohydrate or carbohydrate derivative of about 1:1.1 based on moles of methylol groups in the lignin-based material to moles of the carbohydrate or carbohydrate derivative. 7. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material comprises adding the carbohydrate or carbohydrate derivative to the lignin-based material in a ratio of lignin-based material to carbohydrate or carbohydrate derivative of about 1:1.3 based on moles of methylol groups in the lignin-based material to moles of the carbohydrate or carbohydrate derivative. 8. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material comprises adding the carbohydrate or carbohydrate derivative to the lignin-based material in the presence of phosphoric acid or paratoluene sulphonic acid. 9. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material occurs with heating by a microwave or in a water bath with mixing. 10. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material occurs at about 40° C. to about 60° C. for about 0.5 hours to about 5 hours. 11. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material occurs at about 45° C. to about 55° C. for about 2 hours. 12. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material comprises adding a polyhydroxy carboxylic acid or a hydroxyl polycarboxylic acid to the lignin-based material. 13. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material comprises adding a hydroxymono carboxylic acid, hydroxydicarboxylic acid, hydroxytetracarboxylic acid, or hydroxypolycarboxylic acid, or lithium, sodium, potassium, ammonium or calcium salt thereof to the lignin-based material. 14. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material comprises adding an aminomonocarboxylic acid, aminodicarboxylic acid, aminotricarboxylic acid, or aminotetracarboxylic acid, or a lithium, sodium, potassium, ammonium or calcium salt thereof to the lignin-based material. 15. The method of claim 1, wherein carbohydrate derivative to the lignin-based material comprises adding a natural carboxylic acid or salt thereof derived by oxidation or fermentation of a carbohydrate to the lignin-based material. 16. The method of claim 1, wherein adding the carbohydrate or carbohydrate derivative to the lignin-based material comprises adding sodium gluconate, sodium glutamate, hydroxyl sodium acetate, citric acid, tartaric acid, hydroxyl acetic acid, gluconic acid, or glutamic acid to the lignin-based material.
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이 특허에 인용된 특허 (43)
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Hoftiezer Henry W. (Rothschild WI) Watts Daniel J. (Kingston NJ) Takahashi Akio (Solebury PA), Cationic reaction product of kraft lignin with aldehyde and polyamine.
Navratil Martin (Scarborough CAX) Mitchell Mark S. (Scarborough CAX) Sovak Mojmir (Toronto CAX), Composition and methods for reducing the permeability of underground strata.
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Schmitt Linda G. (Wausau WI) Hollis ; Jr. John W. (Schofield WI), Non-toxic, stable lignosulfonate-urea-formaldehyde composition and method of preparation thereof.
Liu Dongsheng (Xinhe Chemical Laboratory Hebei Province CNX), Process for manufacturing a surfactant from paper-making black liquor resin for exploitation of petroleum.
Dilling Peter (Isle of Palms SC) Loeffler Vaughn R. (Summerville SC) Prazak Gerald (Charleston SC) Thomas Karin U. (Alvin SC), Production of lignosulfonate additives.
Naae Douglas G. (Houston TX) Whittington Lawrence E. (Katy TX) Ledoux Will A. (Sugar Lane TX) Debons Francis E. (Richmond TX), Recovering hydrocarbons with surfactants from lignin.
Naae Douglas G. (Houston TX) Whittington Lawrence E. (Katy TX) Ledoux Will A. (Sugar Lane TX) Debons Francis E. (Richmond TX), Surfactants from lignin.
Debons Francis E. (2435 Wren Meadow Richmond TX 77469) Pedersen Larry D. (6875 Farley Rd. Pinckney MI 48169) Whittington Lawrence E. (25902 Hunter La. Katy TX 77450), Use of lignin/amine/surfactant blends in enhanced oil recovery.
Debons Francis E. (Richmond TX) Pedersen Larry D. (Pinckney MI) Whittington Lawrence E. (Katy TX), Use of lignin/amine/surfactant blends in enhanced oil recovery.
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