FIELD: power industry.
SUBSTANCE: in the method for processing fly ash of coal-fired thermal power stations, comprising high-temperature treatment in a nitrogen atmosphere, the process is conducted in the presence of urea at fly ash: urea ratio of 1:1, and the high-temperature treatment is carried out in a flow of nitrogen plasma at a plasma temperature of 4000-6000°C at a power of a plasmatron of 25 kW and a plasma flow velocity of 60-100 m/s, followed by cooling in a nitrogen atmosphere fed at a velocity of 60-80 m/s and separating multidisperse fractions under conditionds of vortex cycloning and filtering on a bag filter.
EFFECT: waste utilisation, expansion of assortment of useful products obtained as a result of ash utilisation.
2 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING NANOCRYSTALLINE POWDER OF MOLYBDENUM OXYCARBIDE | 2016 |
|
RU2641737C1 |
| COMPOSITE NANOPOWDER BASED ON TITANIUM CARBONITRIDE AND METHOD FOR ITS PRODUCTION | 2022 |
|
RU2782591C1 |
| COMPOSITE NANOPOWDER AND METHOD FOR PRODUCTION THEREOF | 2011 |
|
RU2493938C2 |
| METHOD OF OBTAINING NANOCRYSTALLINE TITANIUM POWDER-MOLYBDENUM CARBIDE POWDER | 2018 |
|
RU2672422C1 |
| METHOD OF PRODUCING TITANIUM NITRIDE NANOPOWDERS | 2010 |
|
RU2434716C2 |
| METHOD OF OBTAINING OF NANO-DISPERSED POWDERS | 2013 |
|
RU2537678C1 |
| METHOD OF PRODUCING URANIUM OXIDE FROM URANYL NITRATE SOLUTION AND DEVICE THEREFOR | 2015 |
|
RU2601765C1 |
| COMPOSITE POWDER BASED ON DOPED TITANIUM CARBONITRIDE | 2024 |
|
RU2823899C1 |
| METHOD OF URANYL NITRATE SOLUTION PROCESSING TO URANIUM OXIDE AND NITRIC ACID SOLUTION AND DEVICE FOR ITS IMPLEMENTATION | 2015 |
|
RU2599670C1 |
| METHOD OF PLASMA-CATALYTIC PROCESSING OF SOLID DOMESTIC WASTES | 2012 |
|
RU2504443C1 |
