the various refinery processes to make petrol, including catalytic cracking . the alkenes are mixed with methanol and passed over an ion-exchange resin such as a co-polymer of a sulfonated phenylethene and divinylbenzene. the sulfonated groups, -so h, provide the acidic groups which catalyse the reaction...
combinations of factors involved. among other suggestions the most satisfactory has been the effective temperature index, it is the temperature of still, saturated air which would produce the same feeling of warmth. ld obviously be of great value if a single index could be used to define the physiological reaction...
combinations of factors involved. among other suggestions the most satisfactory has been the effective temperature index, it is the temperature of still, saturated air which would produce the same feeling of warmth. ld obviously be of great value if a single index could be used to define the physiological reaction...
combinations of factors involved. among other suggestions the most satisfactory has been the effective temperature index, it is the temperature of still, saturated air which would produce the same feeling of warmth. ld obviously be of great value if a single index could be used to define the physiological reaction...
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