C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/22 (2006.01)
Patent
CA 2104134
Aqueous drilling muds are disclosed which contain, as fluidifier agent, one or more complexes, which may be either pre-formed or produced in situ, selected from: -- tetravalent zirconium and one or more organic acids, or their salts, having the general formula (I) (see formula I) wherein R1 and R2, which may be the same or different from each other, represent -H, -COOH, -CH3, -CH2COOH, -CH(OH)COOH; -- aluminum citrate
Burrafato Giovanni
Carminati Stefano
Agip S.p.a.
Eniricerche S.p.a.
Robic
LandOfFree
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