FIELD: chemistry.
SUBSTANCE: method for producing aluminium hydroxochloride from boehmite-kaolinite bauxites and hydrochloric acid involves bauxite dissolution in a steam steriliser with hydrochloric acid in the concentration of 200-300 g/l in ratio solid:liquid = 1:3-5 at temperature 150-225°C for 1-2 hours.
EFFECT: invention enables reducing power consumption, simplifying the process and increasing a recovery rate into an aluminium oxide solution.
1 tbl, 1ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF OBTAINING MIXED COAGULANT FROM MINERAL RAW MATERIAL | 2014 |
|
RU2558122C1 |
| METHOD FOR OBTAINING BAUXITE ALUMINUM POLYOXYCHLORIDE | 2017 |
|
RU2671350C1 |
| METHOD FOR PRODUCING ALUMINA, MAINLY FROM HIGH-SILICA BAUXITE | 2022 |
|
RU2801847C1 |
| METHOD FOR PREPARING ALUMINA FROM BAUXITE | 2002 |
|
RU2226174C1 |
| METHOD OF PRODUCING ALUMINA FROM CHROMIFEROUS BAUXITES | 2016 |
|
RU2613983C1 |
| METHOD FOR COMPLEX PROCESSING OF RED MUD | 2022 |
|
RU2782894C1 |
| METHOD OF PREPARING ALUMINIUM HYDROOXYCHLORIDES | 1997 |
|
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| BAUXITE PROCESSING METHOD | 2019 |
|
RU2707223C1 |
| METHOD OF PROCESSING BAUXITES INTO ALUMINA | 2012 |
|
RU2494965C1 |
| METHOD FOR ENRICHMENT OF PYRITIZED HIGH-SILICA LOW-FERROUS BAUXITES | 2015 |
|
RU2611871C2 |
