FIELD: construction.
SUBSTANCE: black crushed rock is impregnated under pressure with deasphalting agent of heavy oil residues at its content of 40-80 wt % in extractant in supercritical fluid state at 113-140°C and 4.5-8 MPa. Said extract is propane, or butane or mix thereof. Impregnation of crushed stone is executed to water absorption of not over 0.7%.
EFFECT: reduced water absorption.
2 tbl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PROCESSING OIL SLUDGE | 2020 |
|
RU2751711C1 |
| TERTIARY OIL DISPLACEMENT METHOD | 2023 |
|
RU2809858C1 |
| METHOD OF CLEANING LIQUID AND SOLID SEDIMENTS FROM POROUS MATRIX AND DEVICE FOR IMPLEMENTATION OF METHOD | 2006 |
|
RU2348447C2 |
| METHOD OF PREPARING PALLADIUM CATALYST FOR HYDROGENATING ACETYLENE | 2008 |
|
RU2394645C1 |
| METHOD FOR MOLYBDENUM EXTRACTION FROM PRODUCTS OF CATALYTICAL OLEFINE EPOXIDATION WITH ORGANIC PEROXIDES | 2007 |
|
RU2367609C2 |
| METHOD FOR PROCESSING STEEL PRODUCTS CONTAINING ELONGATED AND CURVED CAVITIES | 2020 |
|
RU2757449C1 |
| METHOD OF SOLVENT DEASPHALTISATION OF HEAVY OIL STOCK AND SOLVENT FOR IMPLEMENTATION OF METHOD | 2018 |
|
RU2694533C1 |
| METHOD OF RECYCLING RAILROAD WOODEN SLEEPERS | 2019 |
|
RU2735099C1 |
| METHOD FOR STIMULATION OF WELLS BY INJECTING GAS COMPOSITIONS | 2016 |
|
RU2632791C1 |
| METHOD OF RECYCLING WASTES FROM CATALYTIC EPOXIDATION OF OLEFINS | 2008 |
|
RU2393152C2 |
