B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/31, 23/376
B01J 20/26 (2006.01) B29B 7/06 (2006.01) B29B 7/26 (2006.01) B29B 7/76 (2006.01) B29B 17/00 (2006.01) C08J 11/06 (2006.01)
Patent
CA 2025420
ABSTRACT A process for recycling and reblending dry, difficult to hydrate polymer fines into a water-swellable fluid absorbent polymer gel is disclosed. The process requires feeding the dry polymer fines into a first mixing zone where they are subjected to spraying with water that at least partially hydrates the fines and mixing, substantially simultaneously with the water contact, at high shear such at the fines are substantial completely hydrated without agglomeration. The hydrated fines are then transported from the first zone into a second mixing zone where blending of the hydrated fines with fresh polymer gel occurs at medium shear such that; a substantially uniformly blended product results. The resulting process successfully re-introduces fines into the main product stream wherein the resulting product has high aqueous fluid absorbent capacity and good particulate mechanical integrity. 38,241-F
Jacob Karl V.
Lim Timothy
Sandor Steven P.
Sutton Tod A.
Jacob Karl V.
Lim Timothy
Sandor Steven P.
Smart & Biggar
Sutton Tod A.
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