WERKWIJZE VOOR HET BEREIDEN VAN EEN ZUUR OLIGOMEER CONDENSATIEPRODUKT VAN GESULFONEERDE FENOL EN FORMALDEHYDE

Mixing a sulphonated phenol with formaldehyde and reacting at elevated temperature produces an acidifier in a continuous manner. The mixing and reacting are carried out at a constant molar ratio of the reactants, at a temperature from 50 to 120 DEG C and in an "ideal" displacement reactor....

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Bibliographische Detailangaben
Hauptverfasser:	ALEXANDR MAXIMOVICH VASILENKO BEIDEN TE VLADIMIR, VASILY DMITRIEVICH VALGIN, U.S.S.R, VADIM DMITRIEVICH CHESNOKOV BEIDEN TE KAMENSK-SHAKHTINSKY, ANATOLY YAKOVLEVICH MOROZOV
Format:	Patent
Sprache:	dut
Schlagworte:	APPARATUS THEREFOR CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS FOR TANNING HIDES LEATHER MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PELTS SKINS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	Mixing a sulphonated phenol with formaldehyde and reacting at elevated temperature produces an acidifier in a continuous manner. The mixing and reacting are carried out at a constant molar ratio of the reactants, at a temperature from 50 to 120 DEG C and in an "ideal" displacement reactor. The acidifier obtained can be used as a catalyst for curing phenol resols (resoles) and as a synthetic tanning agent in the leather industry.