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US 2014/0179912 A1Published application
Manufacturing of microcellulose
AssigneeKemira Oyj
InventorsErkki Iikka Sakari Rasanen, Leif Robertsen, Veli-Matti Vuorenpalo, Asko Karppi, Kari Parviainen, Olli Dahl, Kari Vanhatalo
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Abstract
The present invention relates to a process for producing microcellulose comprising a) acidifying fibrous cellulosic material, b) washing the acidified cellulosic material, c) optionally dewatering the washed cellulosic material, and d) hydrolyzing the washed or washed and dewatered cellulosic material under acidic conditions at a temperature of at least 120° C. and at a consistency of at least 8% on dry weight of the cellulose.
Claims14
A process for producing microcellulose comprising
- a) acidifying fibrous cellulosic material,
- b) washing the acidified cellulosic material,
- c) optionally dewatering the washed cellulosic material, and
- d) hydrolyzing the washed or washed and dewatered cellulosic material under acidic conditions at a temperature of at least 120° C. and at a consistency of at least 8% on dry weight of the cellulose.
1 more element
Dependencies are inferred from the claim text.