| 摘要 |
1,254,166. Acetone. TORAY INDUSTRIES Inc. 6 Feb., 1969 [7 Feb., 1968; 8 Feb., 1968; 13 July, 1968], No. 6567/69. Heading C2C. [Also in Divisions C1 and C3] The dehydrogenation is described (see Example 18) of isopropyl alcohol to acetone by heating the former at 450‹ C. in the presence of a catalyst obtained by heating and carbonizing a copolymer of acrylonitrile, and 2-(1-hydroxyethyl)-acrylonitrile (98 : 2 molar ratio). Reference has been directed by the Comptroller to Specification 911,542. |
