Process for stabilizing aqueous zeolite suspensions
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsKarl-Heinz Schmid, Andreas Syldath, Ditmar Kischkel
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Abstract
A process for stabilizing an aqueous zeolite suspension by adding to the suspension at least one nonionic surfactant comprising an alkyl or alkenyl glycoside of the formula R.sup.3 O--(G).sub.x in which R.sup.3 is an alkyl or alkenyl group containing 6 to 22 carbon atoms, G is a glycose residue of a sugar containing 5 or 6 carbon atoms and x is a number of 1 to 10. Only nonionic surfactants are added to the suspension to stabilize the suspension. The suspension may be stabilized by addition of the alkyl or alkenyl glycoside in combination with nonionic surfactant such as a Guebert alcohol polyethylene glycol ether or a fatty alcohol polyethylene glycol ether.
Claims13
A process for stabilizing an aqueous zeolite suspension by addition of surfactants which comprises:
- adding to the suspension at least one nonionic surfactants comprising an alkyl or alkenyl glycoside of the formula
- R.sup.3 O-(G).sub.x (III)
- in which R.sup.3 is an alkyl or alkenyl group containing 6 to 22 carbon atoms, G is a residue of a sugar containing 5 or 6 carbon atoms and x is a number of 1 to 10, wherein only nonionic surfactant is added to the suspension to stabilize the suspension.
The process of claims wherein the nonionic surfactant comprises a mixture of the glycoside and a Guerbet alcohol polyethylene glycol ether of the formula R.sup.1 O--(CH.sub.2 CH.sub.2 O).sub.m H (I), in which R.sup.1 is a branched C.sub.16 to C.sub.20 alkyl group and m is a number of 3 to 10.
Dependencies are inferred from the claim text.