Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3753Chemical news office., 1932 |
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Strona 179
... active . The superiority of nickel as a cata- lyst is indisputable , and provided that poisons capable of altering the surface of the grains of metal are carefully removed from the hydrogen or materials upon which it acts , the life of ...
... active . The superiority of nickel as a cata- lyst is indisputable , and provided that poisons capable of altering the surface of the grains of metal are carefully removed from the hydrogen or materials upon which it acts , the life of ...
Strona 182
... active catalyst when , after washing and drying , it is replaced in the hydrogenation tubes and exposed to the action of hydrogen at about 250 ° C. A stream of oil and hydrogen is passed over the catalyst contained in a number of tubes ...
... active catalyst when , after washing and drying , it is replaced in the hydrogenation tubes and exposed to the action of hydrogen at about 250 ° C. A stream of oil and hydrogen is passed over the catalyst contained in a number of tubes ...
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