FIELD: industrial inorganic synthesis.
SUBSTANCE: naturally occurring clayey mineral, kaolin, is mixed with silicon dioxide and wood flour. To resulting mixture, 5-15% of calcined powdered kaolin, 5-20% of X-type zeolite powder, and sodium chloride are added, after which mixture is stirred. Then lignosulfonate solution is added at stirring until homogeneous plastic mass is formed, which is granulated, dried, and thermally activated. Resulting amorphous granules are cooled and subjected to hydrothermal crystallization in alkali solution. Thus obtained zeolite is treated with live steam, rinsed with water, and dried to yield mechanically strong X-type zeolite.
EFFECT: increased adsorption capacity.
1 tbl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| SYNTHETIC GRANULATED A-TYPE ZEOLITE PREPARATION PROCESS | 2006 |
|
RU2321539C2 |
| METHOD OF PREPARING GRANULATED HIGH-PHASE PURITY A AND X-STRUCTURE ZEOLITE ADSORBENT | 2001 |
|
RU2203220C1 |
| METHOD OF PREPARING HIGH-PHASE PURITY GRANULATED FAUJASITE | 2001 |
|
RU2203224C1 |
| METHOD OF PREPARING GRANULATED ZEOLITE ADSORBENT WITH HIGH PHASE-PURITY STRUCTURES A AND X | 2005 |
|
RU2283278C1 |
| METHOD OF PRODUCING SYNTHETIC GRANULAR TYPE A ZEOLITES | 2012 |
|
RU2508250C1 |
| METHOD OF PREPARING HIGH-PHASE PURITY A-TYPE ZEOLITE | 2001 |
|
RU2203222C1 |
| METHOD OF PRODUCING HIGH PHASE PURITY ZEOLITE ADSORBENT OF STRUCTURE A AND X, GRANULATED WITHOUT BINDER | 2009 |
|
RU2420457C1 |
| METHOD OF PRODUCING SYNTHETIC GRANULAR TYPE A ZEOLITE | 2010 |
|
RU2446101C1 |
| METHOD OF OBTAINING SYNTHETIC ZEOLITE OF TYPE A | 2012 |
|
RU2525246C2 |
| METHOD TO PRODUCE SYNTHETIC ZEOLITE OF X-TYPE | 2001 |
|
RU2218304C2 |
