| Autor: |
Minachev, Kh. M., Bakk, É. G., Dmitriev, R. V., Nasedkin, E. A., Fedyunin, Yu. A. |
| Zdroj: |
Russian Chemical Bulletin; April 1965, Vol. 14 Issue: 4 p603-608, 6p |
| Abstrakt: |
1.The main process of exchange in the investigated hydrocarbons (including cyclohexene at temperatures above 420°) is the exchange of one hydrogen atom per adsorption step. At the optimum rates of exchange, an expo nential drop in the concentration with increasing number of hydrogen atoms on the distribution curve corresponds to this process. A secondary process is the exchange of several hydrogen atoms per adsorption step. The summary yield of the products of numerous exchange does not exceed tenths and hundredths of a percent.2.The presence of double and aromatic bonds in the hydrocarbon molecule sharply increases the rate of exchange. In the case of aromatic hydrocarbons, as a result of the increase in the rate of exchange, a degree of distribution of the exchange products close to equilibrium is reached.3.The rate of exchange of hydrogen at primary carbon atoms is higher than at secondary carbon atoms. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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