| 摘要 |
A sorbent contains an acid-leached clay and a binder. The acid-leached clay may be attapulgite, kaolin, bentonite, montmorillonite, or a combination thereof. The binder may be colloidal silica sol, sodium silicate, sodium di-silicate, hydrated alumina, starch, sucrose, or a combination thereof. Sorbent particles may contain 40 to 95 wt. % of the acid-leached clay and 5 to 30 wt. % of the binder. The sorbent has high dry and wet crush strengths and good water stability.
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