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
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PREPARING NITROGEN-CONTAINING ORGANIC FERTILIZER BASED ON LIGNO-CARBOHYDRATE SUBSTANCES | 2006 |
|
RU2318783C1 |
| METHOD FOR PREPARING NITROGEN-CONTAINING DERIVATIVES OF LIGNOCARBOHYDRATE MATERIALS | 2002 |
|
RU2215755C1 |
| METHOD FOR PRODUCTION OF NITROGEN-CONTAINING DERIVATIVES OF LIGNO-CARBOHYDRATE MATERIALS | 2000 |
|
RU2185394C2 |
| METHOD FOR PREPARING NITROGEN-CONTAINING ORGANIC FERTILIZER FROM TURF | 2005 |
|
RU2291138C2 |
| METHOD FOR PREPARING NITROGEN-CONTAINING FERTILIZER BASED ON LIGNIN-CONTAINING RAW | 2001 |
|
RU2213718C2 |
| NITROGEN-CONTAINING ORGANIC FERTILIZER | 2002 |
|
RU2222515C1 |
| METHOD OF PREPARING WATER-SOLUBLE SULFURIC ACID ESTERS OF LINGO-CARBOHYDRATE MATERIALS | 2004 |
|
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| METHOD OF ACETYLATION OF LIGNOHYDROCARBON MATERIALS | 2005 |
|
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| METHOD OF CARBOXYMETHYLATION OF LIGNIN CARBOHYDRATE MATERIALS | 2010 |
|
RU2442794C2 |
| METHOD OF PRODUCING LIGNINE SORBENT | 2011 |
|
RU2471550C1 |
