C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/32 (2006.01) C09K 8/34 (2006.01)
Patent
CA 2402845
Pumpable and flowable bentonite clay slurries having a bentonite solids content of about 50 % or greater have been prepared for the first time through the use of a non-aqueous fluidizing agent, characterized by being a highly- saturated hydrocarbon oil with low affinity for reactivity with bentonite or other hydrophilic swelling agents such as starches, guars and xanthans. The slurries are useful in the economical transport of bentonite without impairing its swellability in aqueous media in applications such as mining, papermaking and oil drilling.
L'invention concerne des boues de bentonite pompables et liquides ayant une teneur en bentonite solide d'environ 50 % ou plus, préparées pour la première fois grâce à l'utilisation d'un agent fluidifiant non aqueux. Cet agent est une huile hydrocarbure hautement saturé ayant une faible affinité pour la réactivité avec la bentonite ou autre agent gonflant hydrophile, tel que les amidons, les guars et les xanthanes. Les boues de l'invention conviennent pour le transport économique de bentonite, sans altérer sa capacité de gonflement en milieu aqueux dans des applications minières, l'industrie du papier ou le forage pétrolier.
Fairchild Ian R.
Fairchild Peter H.
Fairchild Ian R.
Fairchild Peter H.
Na
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