Under high pressure and microwave irradiation ,a series of 7,7-trimethyl-3-carboxylates-4-aryl-5-oxo-1,4,5,6,7,8-hexahydroquinoline were synthesized by the reaction of aromatic aldehydes,5,5-dimethyl-1,3-cyclohexanedione and ethyl acetoacetate using NH4OAc as Catalyst in enthanol.
Microstructures of hypereutectic Al-Ge alloy contained a lot of primary α(Al) and eutectic (α+β) under high pressure consolidation,which shows under high pressure eutectic point in the phase diagram of Al-Ge alloy moves to the Ge direction.
The biological activity of catalytic domains of collagenase 1 and stromelysin 1 showed obvious difference under high pressure: the activity of collagenase 1 increased with elevating pressure, with an apparent activation volume of -18.9 ml/mol;
The shape of Mohr envelops under high pressure was somewhat curved. The internal friction angle in the range of testing confining pressure (below 70 kg/cm2) was less than that under the normal confining pressure (below 10kg/cm2) by 8°~ 13° which is smaller than that of sand in the same conditions.
By re-contacting the recycle hydrogen from the low pressure separator of a catalytic reformer with reformate under high pressure,a new equilibrium is reached and a hydrogen stream with higher purity is obtained.