<正>Till November 3, 2012 the first in China 100-t/a unit for manufacture of homogeneous catalyst for benzene hydro-genation constructed by Liaoyang Petrochemic
The changes in properties and structural parameters of four vacuum residue samples before and after ultrasonic treatment were analyzed.Ultrasonic treatment coul
Hollow titanium silicalite (HTS) molecular sieve has been synthesized, and information on its structure, physico-chemical characterization, as well as surface p