FIELD: oil, gas and coke-chemical industries.
SUBSTANCE: invention relates to a method for decontaminating a concentrated sulphide-containing solution and can be used in gas, oil refining, petroleum, chemical, pulp and paper and other industries for neutralizing waste water containing inorganic sulphides. Described is a method of oxidising sodium sulphide with concentration of 3.0 wt. % in an aqueous solution, catalyst used is catalyst KSM-X together with hydrocarbon solution 3.3', 5.5'-tetra-tert-butylstilbenquinone.
EFFECT: technical result consists in acceleration of sodium sulphide oxidation and increased depth of purification of waste from toxic sulphides at concentration of 3.0 wt%.
1 cl, 1 tbl, 21 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYST FOR OXIDATION OF SULPHUROUS COMPOUNDS | 2012 |
|
RU2529500C2 |
| METHOD FOR TREATING SEWAGE FROM SULFIDE AND / OR MERCAPTIDE SULFUR AND INSTALLATION FOR ITS IMPLEMENTATION | 2017 |
|
RU2659269C1 |
| CATALYST FOR LIQUID PHASE OXIDATION OF SODIUM SULFIDE | 2016 |
|
RU2644779C2 |
| METHOD OF REGENERATING ALKANOLAMINES WHEN PURIFYING HYDROCARBON GASES FROM HYDROGEN SULPHIDE | 2018 |
|
RU2689572C1 |
| METHOD FOR DEMERCAPTANISATION OF HYDROCARBON MATERIAL | 2015 |
|
RU2603635C1 |
| NEW METAL COMPLEX COMPOUNDS OF OLYGOPYROCATECHOLATE AND METHOD FOR OBTAINING CATALYSTS FOR OXIDATION OF SULFUR COMPOUNDS BASED THEREON | 2017 |
|
RU2677226C1 |
| METHOD OF PURIFYING HIGH-BOILING HYDROCARBON FRACTIONS FROM MERCAPTANS | 2019 |
|
RU2699020C1 |
| METHOD FOR REGENERATIVE CLEANING OF HYDROCARBON RAW FROM ACID IMPURITIES | 2018 |
|
RU2680522C1 |
| METHOD OF OBTAINING POLYQUINONES | 2014 |
|
RU2552516C1 |
| METHOD OF CO-PRODUCTING POLYQUINONES AND ETHYLENE BISPHENOL | 2015 |
|
RU2647591C2 |
