FIELD: chemistry.
SUBSTANCE: invention relates to chemical industry, particularly to production of aluminium oxide hydrosol, which is used as a catalyst support, coagulant during water treatment and binder when producing shell moulds for precision casting from heat-resistant steel. Freshly deposited aluminium hydroxide is dissolved in aluminium hydrochloride at 20°C for 20-30 minutes and aluminium oxide hydrosol is obtained.
EFFECT: invention enables to improve quality of the product and safety of the process.
4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING ALUMINIUM OXIDE HYDROSOL | 1997 |
|
RU2115624C1 |
| 0 |
|
SU1778069A1 | |
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| METHOD OF REFINING DIFFUSION LIQUOR | 1998 |
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RU2133776C1 |
| METHOD OF PREPARING COAGULANT | 1999 |
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|
SU1263629A1 |
| METHOD OF PRODUCING A SMALL-CRYSTALLINE ALUMINATE OF MAGNESIUM | 2016 |
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| METHOD FOR PREPARING LITHIUM CARBONATE FROM LITHIUM-CONTAINING NATURAL BRINES | 2016 |
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RU2660864C2 |
