FIELD: process engineering.
SUBSTANCE: invention relates to extraction and processing of fossil resins and may be used for industrial cleaning of amber. Proposed method comprises treatment of amber by organic solvent, namely, tetrahydrofuran or its water solution at content of tetrahydrofuran over 30 wt %, and flushing the amber with water. Treatment by organic solvent is carried out at 20-50°C for 3-25 minutes while flushing is performed under pressure with additional exposure to ultrasound.
EFFECT: higher quality of cleaning, simplified process.
6 cl
| Title | Year | Author | Number |
|---|---|---|---|
| AMBER CLEANING METHOD | 2015 |
|
RU2626468C2 |
| AMBER ULTRASONIC CLEANING METHOD | 2019 |
|
RU2726721C1 |
| DEVICE FOR PROCESSING AMBER | 2015 |
|
RU2594862C1 |
| METHOD OF PREPARING AMBER LACQUERS | 2018 |
|
RU2699645C1 |
| METHOD FOR CLEANING AMBER | 2001 |
|
RU2210483C2 |
| METHOD OF INTEGRAL PROCESSING OF AMBER | 2007 |
|
RU2336165C1 |
| METHOD FOR PRODUCING HIGH-MOLECULAR COLLAGEN | 2020 |
|
RU2746215C1 |
| METHOD OF POLISHING PARTS | 0 |
|
SU854692A1 |
| METHOD OF AMBER PROCESSING | 2011 |
|
RU2481960C1 |
| ARABINOGALACTAN POLYSACCHARIDE PRODUCTION METHOD | 2015 |
|
RU2620013C2 |
