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US 11,299,852 B2Granted
Method for producing parenchymal cell cellulose
AssigneeBetulium Oy
InventorsAntti Laukkanen, Marko Lauraeus, Jason McKee, Timo Pääkkönen, Tapio Saarinen
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Abstract
A method for producing parenchymal cell cellulose by using a high consistency alkali treatment and an optional refinement step, as well as an apparatus for its manufacture.
Claims8
A continuous method for producing parenchymal cell cellulose comprising:
- a. Treating parenchymal cellulose raw material selected from sugar beet pulp, cassava pulp, and potato pulp, and mixtures thereof with an alkali;
- b. recovering a first solid extract;
- c. washing the recovered first solid extract with a solvent and recovering a second solid extract;
- and
- d. refinging the second solid extract to obtain nanofibrillar parenchymal cellulose, wherein the solids content of the first recovered solid extract and/or the recovered second solid extract comprising parenchymal cell cellulose is at least 8 wt%, and wherein the step a and step c are conducted using a counter-current process.
2 more elements
Dependencies are inferred from the claim text.