B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 20/24 (2006.01) B01J 20/30 (2006.01) C02F 1/68 (2006.01)
Patent
CA 2115009
A process for preparing an oil sorbent excellent in oil sorptivity and water repellency and a device preparing the same are disclosed. The process for preparing an oil sorbent comprises mechanically fibrillating, or shredding and grinding lignocellulose material while substantially maintaining cell structure; and heating the resultant at a temperature of 250 to 450°C or 350 to 400°C for a predetermined period of time; followed by predetermined cooling to form an oil sorbent. The device for continuously preparing an oil sorbent having such a basic structure that three pipes with a "ellipse-shaped" cross-section each of which includes therein a screw type transferring means are arranged on top of one another, and the heating and the cooling are effected externally.
La présente invention concerne un procédé de préparation de sorbant lipophile possédant d'excellentes propriétés lipophiles et hydrophobes, ainsi qu'un dispositif associé. Ledit procédé comporte les étapes suivantes : déchiquetage et broyage mécaniques d'un matériau constitué de lignocellulose tout en conservant les cellules intactes; chauffage du produit à une température comprise entre 250 et 450 oC ou 350 et 400 oC durant un temps déterminé; refroidissement sous conditions déterminées. Le dispositif conçu pour la préparation en continu dudit sorbant est constitué simplement de trois tubes de section ellipsoïde superposés renfermant chacun une vis d'entraînement, et des sources externes de chauffage et de refroidissement.
Endoh Hiromu
Kato Yukihiro
Minemura Nobuya
Nakamura Fumito
Saitoh Masaru
Gowling Lafleur Henderson Llp
Hokkaido
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