FIELD: chemistry.
SUBSTANCE: invention relates to production of granulated zeolite A which can be used to separate mixtures of hydrocarbons on a molecular level, for drying and cleaning gas, for removing metal cations and radionuclides from water streams. In order to produce metakaolin, kaolin is first annealed at temperature 500-850°C for 1-8 hours. A mixture of kaolin and powdered zeolite A, metakaolin and starch is them prepared, with the following ratio of components in wt %: powdered zeolite A 10-30, metakaolin 30-50, starch 1-2, kaolin - the rest. The mixture is moistened, stirred and granulated. The granules are dried, annealed, crystallised, washed and dried.
EFFECT: invention enables to obtain high phase purity zeolite A which is granulated without binder and which has high mechanical strength and packed density.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING GRANULAR ZEOLITE MATERIAL NOT CONTAINING BINDER | 2009 |
|
RU2425801C2 |
| METHOD OF PRODUCING HIGH PHASE PURITY ZEOLITE ADSORBENT OF STRUCTURE A AND X, GRANULATED WITHOUT BINDER | 2009 |
|
RU2420457C1 |
| METHOD FOR PRODUCING NAA GRANULATED ZEOLITE ADSORBENT | 2017 |
|
RU2655104C1 |
| METHOD OF PRODUCING HIGH-MODULUS FAUJASITE WITHOUT BINDING MATERIALS | 2014 |
|
RU2553876C1 |
| METHOD OF PRODUCING HIGH-MODULUS FAUJASITE WITHOUT BINDING MATERIALS | 2010 |
|
RU2456238C1 |
| METHOD OF OBTAINING GRANULATED WITHOUT BINDING AGENT NaY TYPE ZEOLITE WITH HIGH PHASE PURITY | 2014 |
|
RU2568219C1 |
| METHOD FOR PRODUCING GRANULATED ZEOLITE TYPE X WITHOUT BINDERS | 2017 |
|
RU2653033C1 |
| METHOD OF PRODUCING HIGH PHASE PURITY GRANULAR NaY ZEOLITE WITHOUT BINDER | 2009 |
|
RU2412903C1 |
| METHOD OF OBTAINING ZEOLITE NaY GRANULATED WITHOUT BINDING AGENT | 2013 |
|
RU2540086C1 |
| METHOD OF PRODUCING TYPE A ZEOLITE AS ADSORBENT | 2009 |
|
RU2395451C1 |
