FIELD: chemistry.
SUBSTANCE: invention relates to agriculture. The method of processing spent sulphuric acid, which involves neutralisation, wherein the solution of spent sulphuric acid is blown with a coke-chemical gas containing ammonia, ammonium sulphate is deposited from the obtained solution by filtering, followed by depositing, wherein filtration and drying are carried out with simultaneous treatment with ultrasound at frequency of 18-23 kHz.
EFFECT: invention simplifies the technology of producing ammonium sulphate, lowers production costs, improves environmental friendliness of production and reduces corrosive wear of equipment.
3 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COKE OVEN GAS CLEANING METHOD | 2023 |
|
RU2815986C1 |
| METHOD OF PURIFYING SPENT SULFURIC ACID FROM ORGANIC ADMIXTURES | 0 |
|
SU1017668A1 |
| 0 |
|
SU125331A1 | |
| METHOD OF PURIFYING COKE OVEN GAS FROM AMMONIA BY CIRCULAR PHOSPHATE METHOD | 2017 |
|
RU2645999C1 |
| INSTALLATION FOR PREPARING AMMONIUM SULPHATE SOLUTION THROUGH DIRECT MIXTURE OF SULPHURIC ACID AND AMMONIA | 2008 |
|
RU2393993C2 |
| APPARATUS FOR AUTOMATIC CONTROL OF PROCESS OF AMMONIA TRAPPING FROM COKING GAS | 0 |
|
SU1047834A1 |
| COKE-OVEN GAS PROCESSING METHOD | 1990 |
|
RU2042402C1 |
| METHOD FOR PROCESSING EVAPORATED AMMONIA WATER FROM COKE CHEMICAL PRODUCTION | 0 |
|
SU1002248A1 |
| METHOD OF PRODUCING CRYSTALLINE AMMONIUM SULFATE | 0 |
|
SU1518302A1 |
