US 11,833,448 B2
System and method for continuous stirred tank solvent extraction using feedstock
Anthony Nocera, Jr., Creve Coeur, MO (US)
Assigned to Kultevat, Inc., Creve Coeur, MO (US)
Filed by Kultevat, Inc., Creve Coeur, MO (US)
Filed on Jan. 13, 2023, as Appl. No. 18/096,988.
Application 18/096,988 is a continuation of application No. 17/328,647, filed on May 24, 2021, granted, now 11,565,195.
Application 17/328,647 is a continuation of application No. 16/055,573, filed on Aug. 6, 2018, granted, now 11,033,833, issued on Jun. 15, 2021.
Claims priority of provisional application 62/542,504, filed on Aug. 8, 2017.
Prior Publication US 2023/0149828 A1, May 18, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 11/02 (2006.01); B01D 43/00 (2006.01)
CPC B01D 11/0257 (2013.01) [B01D 11/0207 (2013.01); B01D 11/0284 (2013.01); B01D 43/00 (2013.01); B01D 2221/06 (2013.01); B01D 2221/10 (2013.01); B01D 2257/704 (2013.01); B01D 2311/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A feedstock processing system for extracting a product from a solid, the system comprising:
a continuous stirred tank extraction (CSTE) system comprising a plurality of continuous stirred tank extraction stages arranged in fluid communication with each other in series such that effluent from one continuous stirred tank extraction stage flows to a next continuous stirred tank extraction stage in the series of the plurality of continuous stirred tank extraction stages, each of the continuous stirred tank extraction stages having a tank, each tank having an agitator therein, at least one of the continuous stirred tank extraction stages having an inlet in fluid communication with the tank of the at least one continuous stirred tank extraction stage, the inlet adapted and configured to allow a measured amount of liquid solvent and the solid to be introduced to the at least one continuous stirred tank extraction stage, the agitator of the at least one continuous stirred tank extraction stage being adapted and configured to mix the solid with the introduced solvent to form a homogeneous slurry to enable the product associated with the solid to be extracted with the solvent; and
a solid-liquid separator arranged in fluid communication with the last in series continuous stirred tank extraction stage, the solid-liquid separator being adapted and configured to receive an effluent from the last in series continuous stirred tank extraction stage and separate the liquid solvent containing the product from the solid to form a product-containing liquid and a product-depleted solid; and
further comprising a recirculation loop associated with the at least one continuous stirred tank extraction stage; and
wherein the recirculation loop includes a device adapted and configured to at least one of reduce a particle size and alter a shape of the solid in the effluent of the recirculation loop.