برچسب: Iranian

  • Introduction to Iranian bitumen

    Introduction to Iranian bitumen

    Crude oil is found in sedimentary rocks throughout the world .except thus far, in Antarctica .in many places the oil has been degraded.so that it is represented by …

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  • Chemistry of Iranian bitumen

    Chemistry of Iranian bitumen

    Extra-heavy oil and natural bitumen rep-resent crude oils which have been severely degraded by microbial action. As evidenced by their paucity of low-molecular-weight …

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