CARBOXYMETHYLCELLULOSE PRODUCTION PROCESS

FIELD: pulp-and-paper industry. SUBSTANCE: invention aims at producing carboxymethylcellulose for application as drilling mud stabilizer, as antiresorbent included in synthetic detergents, as depressor in flotation enrichment of copper-nickel and sylvinite ores, as dextrin glue, etc. Special-type pa...

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Bibliographische Detailangaben
Hauptverfasser: PONOMAREV B.A, KHARITONOV S.V, KUNICHAN V.A, KHARITONOV V.A
Format: Patent
Sprache:eng
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Zusammenfassung:FIELD: pulp-and-paper industry. SUBSTANCE: invention aims at producing carboxymethylcellulose for application as drilling mud stabilizer, as antiresorbent included in synthetic detergents, as depressor in flotation enrichment of copper-nickel and sylvinite ores, as dextrin glue, etc. Special-type paper waste originated from destruction of bank notes is mercerized with sodium hydroxide aqueous solution, treated with sodium monochloroacetate, ripened on standing, and dried. EFFECT: reduced (by 25-30%) cost. 1 tbl