The extraction and pyrolysis of tar sand from Wadi Isal, Jordan have been investigated. Solvent type, mixing time, temperature, particle size and alkali concentration have been identi"ed as important parameters for bitumen recovery. The results show that hot water extraction is ine!ective since a sm
KINETICS OF CHLOROFORM EXTRACTION OF TAR SAND
โ Scribed by Yahya H. Khraisha
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 168 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0363-907X
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โฆ Synopsis
The kinetics of chloroform extraction from a Jordan tar sand have been studied. The activation energy of the extraction has been evaluated; for 125-180 m tar sand it is 6โข53 kJ mol\ in the initial stage of extraction and 12โข18 kJ mol\ in the later stages, for 355-500 m 1โข0 kJ mol\ and 10โข61 kJ mol, respectively. These values are in agreement with the general activation energy of the dissolution of a solid material. It is concluded that the rate of extraction is controlled by the diffusion of extract.
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