FIELD: chemistry.
SUBSTANCE: invention relates to a method for nitrosation of sulphate lignin by mixing sodium nitrite and sulphate lignin and subsequently holding the reaction mixture. The reaction mixture is acidified and nitrosation is carried out an aqueous dioxane solution.
EFFECT: method enables to carry out the reaction in homogeneous conditions and increases efficiency of the process.
1 tbl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR NITROSATION OF SULPHATE LIGNIN | 2023 |
|
RU2819669C1 |
| METHOD FOR PREPARATION OF NITROSO DERIVATIVES OF LIGNOSULPHONATES | 2007 |
|
RU2363702C2 |
| METHOD FOR MODIFYING SULFATE LIGNIN | 2020 |
|
RU2753533C1 |
| REAGENT FOR HOMOGENEOUS NITRATION OF SULPHATE LIGNIN | 2015 |
|
RU2608145C1 |
| METHOD OF SYNTHESIS OF ALKALINE-SOLUBLE IRON CHELATE | 1998 |
|
RU2165936C2 |
| METHOD FOR DETERMINING THE MASS CONCENTRATION OF LIGNIN SUBSTANCES IN NATURAL, WASTE AND TREATED WASTE WATER | 2022 |
|
RU2784776C1 |
| METHOD OF DETERMINING NITRATE, REDUCING AGENT AND A METHOD OF PREPARATION THEREOF | 2001 |
|
RU2206889C2 |
| METHOD OF DETERMINING LIGNIN | 2013 |
|
RU2535018C1 |
| SILVER COLLOIDAL STABILIZER | 2022 |
|
RU2794897C1 |
| ORGANIC COMPONENT OF THE NUTRIENT MIXTURE FOR PLANTS | 2016 |
|
RU2660929C2 |
