FIELD: technological processes.
SUBSTANCE: invention may be used to produce reagents for disinfection and treatment of household-domestic and industrial waste water. In order to produce oxidant based on ferrates of alkaline metals, iron-containing substance is oxidised in melt of alkaline metals compounds in two stages. At the first stage initial iron-containing substance is oxidised in melt of alkaline metals sulfates and/or industrial waste, containing sulfates of alkaline metals, as electric current is passed through melt to produce half-finished product, which contains iron oxides and ferrites of alkaline metals. At the second stage further oxidation of iron oxides and alkaline metals ferrites contained in half-finished product is carried out, in melt of alkaline metals hydroxides, in presence of gaseous oxygen to obtain product, which contains ferrates of (IV) and (VI) alkaline metals. Installation is proposed for preparation of specified oxidant.
EFFECT: invention makes it possible to reduce power inputs and duration of oxidant production process, to expand assortment of waste used as raw materials.
35 cl, 17 dwg, 8 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING OXIDISING REAGENT CONTAINING IRON IONS IN OXIDATION STATES +4, +5, +6, +7, +8 | 2009 |
|
RU2448055C2 |
| INDUSTRIAL METHOD OF OXIDANT OBTAINING AND DEVICE FOR ITS REALISATION | 2006 |
|
RU2340560C2 |
| METHOD OF SYNTHESIZING OF THE OXIDIZING AGENT AND ITS APPLICATION | 2001 |
|
RU2276657C2 |
| METHOD OF SYNTHESIS OF FERRATE-4 SODIUM | 1998 |
|
RU2149833C1 |
| COMPOSITION FOR SYNTHESIS OF OXYGEN COMPOUNDS OF IRON WITH OXIDATION STATES (+4), (+5) AND (+6), METHOD FOR PRODUCTION THEREOF AND METHOD FOR USE THEREOF | 2015 |
|
RU2600346C1 |
| METHOD OF OBTAINING SODIUM FERRATE (VI) | 2007 |
|
RU2356842C1 |
| MIXED POTASSIUM-SODIUM FERRATE(VI), A METHOD FOR PREPARATION AND UTILIZATION THEREOF | 2002 |
|
RU2220910C2 |
| PROCESS FOR RECOVERING NON-FERROUS METALS | 1990 |
|
RU2031161C1 |
| COATED PIGMENTS FOR COLOURING POLYVINYL CHLORIDE | 2015 |
|
RU2697446C2 |
| METHOD OF PRODUCING POTASSIUM FERRATE (VI) | 2008 |
|
RU2371392C1 |
