| http://www.w3.org/ns/prov#value | - The catalyst was tested, i.e. first the catalyst was loaded with butane (respectively, 20 and 10% butane in argon, space velocity 2500 per hour) for 5 minutes in a fixed bed with 1.2 ml catalyst of a weight of 1.2 g (catalyst sieve fraction 0.09-0.15 mm) and subsequently, in a separate step, after flushing with argon at a space velocity of 5000 per hour, it was reoxidized for 2 minutes with a vary
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