Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3753Chemical news office., 1932 |
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Strona 178
... heated to 300 ° C. The ethylene is decomposed , giving a finely divided black carbide in which the metal is diffused in extremely fine particles . The gas given off , however , consists not of hydrogen , more or less contaminated with ...
... heated to 300 ° C. The ethylene is decomposed , giving a finely divided black carbide in which the metal is diffused in extremely fine particles . The gas given off , however , consists not of hydrogen , more or less contaminated with ...
Strona 184
( 7 ) The oil is heated for about 10-15 minutes only during the operation of hydrogenation . ( 8 ) Low cost of operation . An average figure for hydrogen consump- tion over the range of oils dealt with in a fat - hardening installation ...
( 7 ) The oil is heated for about 10-15 minutes only during the operation of hydrogenation . ( 8 ) Low cost of operation . An average figure for hydrogen consump- tion over the range of oils dealt with in a fat - hardening installation ...
Strona 185
... heated conveniently and economically by gas , fitted with electrically operated stir- ring gear and suction fume - withdrawal fans . The temperature is controlled with the same care as in the case of a feverish patient and all materials ...
... heated conveniently and economically by gas , fitted with electrically operated stir- ring gear and suction fume - withdrawal fans . The temperature is controlled with the same care as in the case of a feverish patient and all materials ...
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