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ation of carbon dioxide using this catalyst was suppressed. In conclusion, it appears that this catalyst improved the coal liquefaction solid solution, Alsilicate, Al-oxides: other sulfates were identified in its composition.
The same characterrstic bands were indicated on both process.
infrared and nuclear magnetic resonance spectra for tar asphaltenes and crude oils.
OO/BO127
π SIMILAR VOLUMES
## Abstract Poly(4βmethylstyrene)βgraftβpoly(ethylene oxide)s were prepared via polymerisation of ethylene oxide on to poly(4βmethylstyrene)s functionalised with hydroxyl groups. In this way, many βcombβlikeβ polymers having different hydrophobic backbone length, hydrophilic branch length and frequ
The cleaning and washing power of surfactants is based on physicochemical effects. Of special importance is the emulsifying and dispersing capacity. While the emulsifying capacity describes the behaviour of two immiscible liquid phases, the dispersing capacity is a measure of how a liquid phase infl