METHOD FOR PRODUCTION OF NITROGEN-CONTAINING DERIVATIVES OF LIGNOCARBOHYDRATE MATERIALS
FIELD: chemical wood reprocessing, in particularly for production of nitrogen-containing fertilizers and sorbents based on lignocarbohydrate raw material. ^ SUBSTANCE: claimed method includes treatment of lignin-containing raw material with ammonium solution of peroxide compound (e.g., hydrogen pero...
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Zusammenfassung: | FIELD: chemical wood reprocessing, in particularly for production of nitrogen-containing fertilizers and sorbents based on lignocarbohydrate raw material. ^ SUBSTANCE: claimed method includes treatment of lignin-containing raw material with ammonium solution of peroxide compound (e.g., hydrogen peroxide) containing 0.03-0.9 of hydrogen peroxide and 0.25-1.5 g of ammonium (in respect to 1 g of raw material), while thorough mechanical grinding at 20°C, frequency of 2800 cm-1,for 0.25-2.0 h. Method of present invention makes it possible to reduce oxidizing agent consumption by 4-5 times and ammonium amount by 1,5 times. ^ EFFECT: method with decreased reagent consumption and reduced process durability. ^ 22 ex, 4 tbl |
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