Process and apparatus for modifying bitumen

Details Process and apparatus for modifying bitumen Process and apparatus for modifying bitumen

2011-01-18

2011-01-18

Hill, Jr., Robert J (Department: 1797)

Mineral oils: processes and products

Oxidation of mineral oils

To form asphalts, tars or pitches

C208S003000, C208S004000, C208S390000, C422S224000, C422S226000, C422S228000

Reexamination Certificate

active

07871509

ABSTRACT:
Apparatus for modifying bitumen. The apparatus includes a multi-section loop tube reactor A circulation pump (11) circulates bitumen in the reactor (10) and air is introduced at air injection point (13). Bitumen is introduced into the reactor (10) at inlet (14) by variable speed pump P1. A plurality of mixers (15) are located between the air injection point (13) and a head section (24) beyond which is an outlet (27) where modified bitumen is drawn off by variable speed pump P2.

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