FIELD: chemistry.
SUBSTANCE: invention relates to chemical industry, is intended for the production of sodium salts of carboxymethyl esters of humic materials and can be used in drilling of oil and gas wells. Air-dry peat is mixed with solid NaOH and sodium monochloroacetate Na-MCA, in molar ratio of OH:NaOH:Na-MCA, equal to 1:(0.5–2.5):(0.5–2.5). Mixture is intensively mechanically ground for 10–60 minutes at 25 °C without adding water, resulting in the formation of water-soluble carboxymethylated products.
EFFECT: wider raw material base range, improved quality of carboxymethylated products by increasing the content of carboxymethyl groups are provided.
1 cl, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR CARBOXYMETHYLATION OF PEAT | 2023 |
|
RU2801400C1 |
| METHOD OF CARBOXYMETHYLATION OF LIGNIN CARBOHYDRATE MATERIALS | 2010 |
|
RU2442794C2 |
| METHOD FOR SYNTHESIS OF CROSS-LINKED CARBOXYMETHYLATED LIGNIN-CARBOHYDRATE MATERIAL | 2010 |
|
RU2436797C1 |
| METHOD OF OBTAINING CARBOXYMETHYLATED LIGNOCARBOHYDRATE MATERIAL UNDER EFFECT OF MICROWAVE RADIATION | 2008 |
|
RU2393169C1 |
| METHOD FOR SYNTHESIS OF CROSS-LINKED CARBOXYMETHYLATED LIGNIN-CARBON MATERIAL | 2008 |
|
RU2387668C1 |
| METHOD OF PRODUCING CARBOXYMETHYLATED LIGNOCARBOHYDRATE MATERIAL | 2008 |
|
RU2374264C1 |
| PEAT CARBOXYMETHYLATION METHOD | 2010 |
|
RU2446201C1 |
| METHOD OF CARBOXYMETHYLATION OF LIGNOCARBOHYDRATE MATERIALS | 2014 |
|
RU2556933C1 |
| METHOD OF CARBOXYMETHYLATION OF LIGNOCARBOHYDRATE MATERIALS | 1996 |
|
RU2130947C1 |
| METHOD OF CARBOXYMETHYLATION OF LIGNOCARBOHYDRATE MATERIALS | 1998 |
|
RU2135517C1 |
