US 11,753,482 B2
System for the production of a spinning dope composition
Carina Olsson, Gothenburg (SE); Bengt Hagström, Gothenburg (SE); and Tobias Köhnke, Gothenburg (SE)
Assigned to TREETOTEXTILE AB, Bjarred (SE)
Filed by TREETOTEXTILE AB, Bjärred (SE)
Filed on Jun. 13, 2021, as Appl. No. 17/346,293.
Application 17/346,293 is a division of application No. 16/093,271, granted, now 11,299,556, previously published as PCT/EP2017/058785, filed on Apr. 12, 2017.
Claims priority of application No. 16165374 (EP), filed on Apr. 14, 2016.
Prior Publication US 2021/0301033 A1, Sep. 30, 2021
Int. Cl. B01F 33/82 (2022.01); C08B 1/08 (2006.01); C08B 1/10 (2006.01); C08B 1/12 (2006.01); C08B 1/14 (2006.01); D01D 1/10 (2006.01); D21H 13/08 (2006.01); C08B 1/00 (2006.01); D01D 1/02 (2006.01); D01F 2/02 (2006.01); C08J 3/05 (2006.01); C08K 3/22 (2006.01)
CPC C08B 1/003 (2013.01) [B01F 33/821 (2022.01); C08J 3/05 (2013.01); D01D 1/02 (2013.01); D01F 2/02 (2013.01); C08K 2003/2296 (2013.01)] 34 Claims
OG exemplary drawing
 
1. A spinning dope composition production system comprising:
a homogenization unit adapted for receiving cellulosic pulp material and alkali solution, the homogenization unit comprising a high shear mixing means for homogenizing cellulosic pulp material in alkali solution, said homogenization unit being arranged to supply a power density of at least 150 kW/m3 (kW supplied to agitators per mixed unit of liquid volume) to the high shear mixing means in the homogenization unit; and
a dissolution unit adapted for receiving cellulosic pulp material homogenized in alkali solution from the homogenization unit, the dissolution unit comprising mixing means for mixing cellulosic pulp material in alkali solution, said dissolution unit being arranged to supply a power density of maximum 75 kW/m3 (kW supplied to agitators per mixed unit of liquid volume) to the mixing means in the dissolution unit.