Process for dewatering microfibrillated cellulose
AssigneeStora Enso OYJ
InventorsLaura Nousiainen, Petteri Kostiainen, Petteri Saarinen, Jan-Erik Nordström
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Abstract
The present invention relates to a process for dewatering a slurry comprising a microfibrillated cellulose wherein the process comprises the following steps of providing a slurry comprising a microfibrillated cellulose and a liquid, subjecting the slurry to a first mechanical pressure in order to dewater the slurry, and subjecting the slurry to a second mechanical pressure which second pressure is higher than the first pressure.
Claims11
A process for dewatering a slurry comprising a microfibrillated cellulose by only subjecting the slurry to a mechanical pressure, without significant hornification of the microfibrillated cellulose, wherein the process comprises the following steps:
- providing a slurry comprising a microfibrillated cellulose and a liquid,
- subjecting the slurry to a first mechanical pressure in order to dewater the slurry, and
- subjecting the slurry to a second mechanical pressure which second pressure is higher than the first pressure.
Dependencies are inferred from the claim text.