Aminomethylated lignin-based dispersant, and preparation technology and application thereof
The invention discloses an aminomethylated lignin-based dispersant, and a preparation technology and an application thereof. The technology comprises the following steps: heating a pulping black liquor with the solid content of 11.8-60% as a raw material to 20-80DEG C, adding a sulfonic amino compou...
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| creator | LIU MINGHUA YE XIAOXIA LIU YIFAN LIN CHUNXIANG ZENG JITING |
| description | The invention discloses an aminomethylated lignin-based dispersant, and a preparation technology and an application thereof. The technology comprises the following steps: heating a pulping black liquor with the solid content of 11.8-60% as a raw material to 20-80DEG C, adding a sulfonic amino compound to adjust the pH value to 10.0-13.5, adding an aldehyde compound with the mass fraction of 1.0-9.0%, reacting at 60-110DEG C for 0.5-3h, adding a sulfonating agent with the mass fraction of 2.5-15%, reacting at 95-180DEG C for 2-5h, cooling, discharging to obtain a brown black liquid, and carrying out spray drying to obtain a solid pulvis. The aminomethylated lignin-based dispersant prepared in the invention has dispersing, complexing and chelating functions, and can be used in the fields of dye dispersant, concrete additives and ceramic additives. |
| format | Patent |
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The technology comprises the following steps: heating a pulping black liquor with the solid content of 11.8-60% as a raw material to 20-80DEG C, adding a sulfonic amino compound to adjust the pH value to 10.0-13.5, adding an aldehyde compound with the mass fraction of 1.0-9.0%, reacting at 60-110DEG C for 0.5-3h, adding a sulfonating agent with the mass fraction of 2.5-15%, reacting at 95-180DEG C for 2-5h, cooling, discharging to obtain a brown black liquid, and carrying out spray drying to obtain a solid pulvis. 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| subjects | ADHESIVES ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DYES LIME, MAGNESIA MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES REFRACTORIES SLAG TREATMENT OF NATURAL STONE |
| title | Aminomethylated lignin-based dispersant, and preparation technology and application thereof |
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