METHOD OF PREPARING MIXED CHROMIUM-METAL-CONTAINING LIGNOSULFONATES REAGENTS FOR TREATMENT OF DRILLING MUDS

oil and gas production. SUBSTANCE: in a method of preparing compositionally and qualitatively stable chromium-metal-containing lignosulfonate reagents for efficiently controlling properties of drilling muds, including stage of oxidation of lignosulfonates with chromium(VI) compounds in acidic medium...

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Hauptverfasser:	IVANOV V.D, RASTEGAEV B.A, ARKHIPOV A.I, PEN'KOV A.I, DUBAKIN A.S, KOSHELEV V.N, VAKHRUSHEV L.P
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES
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