Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PROCESS FOR PREPARING LOW AIR ENTRAINING, LOW VISCOSITY LIGNOSULFONATES
A method for preparing a low-air entraining, low viscosity lignosulfonate composition. The method comprises: a) applying heat to the crude lignosulfonate composition under suitable conditions to reduce sugar levels to below 10%, optionally below 5%, optionally below 3%), or optionally below 1%, on a dry basis; b) mixing a crude lignosulfonate composition with an effective amount of a source of trivalent ion to complex air entraining fatty acids and resin acids; c) lowering temperature to prevent viscosity buildup.
PROCESS FOR PREPARING LOW AIR ENTRAINING, LOW VISCOSITY LIGNOSULFONATES
A method for preparing a low-air entraining, low viscosity lignosulfonate composition. The method comprises: a) applying heat to the crude lignosulfonate composition under suitable conditions to reduce sugar levels to below 10%, optionally below 5%, optionally below 3%), or optionally below 1%, on a dry basis; b) mixing a crude lignosulfonate composition with an effective amount of a source of trivalent ion to complex air entraining fatty acids and resin acids; c) lowering temperature to prevent viscosity buildup.
PROCESS FOR PREPARING LOW AIR ENTRAINING, LOW VISCOSITY LIGNOSULFONATES
ANDRESEN MARTIN (Autor:in) / FREDHEIM GURO ELISE (Autor:in) / GARGULAK JERRY (Autor:in) / OLDROYD DAVID L (Autor:in) / PETTERSEN HANS PETTER (Autor:in) / SJÖDE ANDERS (Autor:in) / SPERNES VIBEKE BOGETVEDT (Autor:in) / JENSEN BJØRN ARILD (Autor:in)
02.05.2019
Patent
Elektronische Ressource
Englisch
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