C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
31/26
C09K 8/20 (2006.01)
Patent
CA 1281175
"POTASSIC DRILLING MUD" Abstract The drilling mud according to the invention comprises as its potassium source the potassium salt of a cellulose carboxymethyl ether which is obtained by submitting a cellulose to carboxymethylation by the action of a mono-chloroacetic acid, after a preliminary activation with KOH.
538509
Palumbo Sergio
Radenti Giuseppe
Zucca Giovanni
Agip S.p.a.
Robic Robic & Associes/associates
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