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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 (author) / FREDHEIM GURO ELISE (author) / GARGULAK JERRY (author) / OLDROYD DAVID L (author) / PETTERSEN HANS PETTER (author) / SJÖDE ANDERS (author) / SPERNES VIBEKE BOGETVEDT (author) / JENSEN BJØRN ARILD (author)
2019-05-02
Patent
Electronic Resource
English
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