Stable aqueous suspensions of zeolite which can be easily pumped
AssigneeEnichem Augusta Industriale S.r.l.
InventorsPaolo Colombo, Pier D. Mattioli, Luigi Valtorta, Pierino Radici
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Abstract
Stable aqueous suspensions of zeolite 4A which can be easily pumped, containing from 0.5 to 65% of zeolite and from 0.05 to 6 g (per 100 g of zeolite) of a suspending agent, composed of mixtures of ethoxylated alkanols, said mixtures being obtained by ethoxylating: a) biodegradable branched alkanols, having from 10 to 18 carbon atoms and having a single branching in position 2, said mixtures containing at least 2 alkanols having a different number of C atoms; or b) mixtures containing 40-100% of branched alkanols as in a) and 60-0% of linear alkanols having from 10 to 18 C atoms.
Claims15
Stable aqueous suspensions of zeolite 4A which can be easily pumped, containing from 0.5 to 65% by weight of anhydrous zeolite and from 0.05 to 6 g (per 100 g of anhydrous zeolite) of a suspending agent, composed of mixtures of ethoxylated alkanols, having an average ethoxylation degree of 3 to 12, wherein said mixtures are obtained by ethoxylating:
- a) mixtures of biodegradable branched alkanols, having from 10 to 18 carbon atoms and having a single branching in position 2, said mixtures containing at least 2 alkanols having a different number of carbon atoms;
- or
- b) mixtures containing from 40 to 100% by weight of branched alkanols as in a) and from 60 to 0% by weight of linear alkanols having from 10 to 18 carbon atoms.
Dependencies are inferred from the claim text.