Title:
ASPHALT EXTRACTOR
Document Type and Number:
WIPO Patent Application WO/1996/003192
Kind Code:
A1
Abstract:
The invention relates to a Soxhlet type asphalt extractor for extracting through a filter (3) asphalt in an asphalt mixture (C) within the filter (3) by condensing a solvent (A), which has evaporated from a flask (1), in a cooler (4) and dripping the solvent in the filter (3). The flask (1) and the filter (3) are covered by a heat insulating casing (51), and are heated and kept warm by heat from a gas burner (2). In order to lower a boiling point of the solvent (A) in the flask (1), pressure in the flask (1), filter (3) and the cooler (4) is reduced by a pressure reducing device (6).
Inventors:
NAKAJIMA MASAHIRO (JP)
Application Number:
PCT/JP1995/001487
Publication Date:
February 08, 1996
Filing Date:
July 24, 1995
Export Citation:
Assignee:
NAKAJIMA MASAHIRO (JP)
International Classes:
B01D11/02; C10C3/08; (IPC1-7): B01D11/02
Foreign References:
| JPS5819701U | 1983-02-07 | |||
| JPS6393302A | 1988-04-23 | |||
| JPS5557038U | 1980-04-17 |
Other References:
See also references of EP 0720859A4
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