Benzaldehyde was trial produced by a new process which comprised following steps : ( 1 ) photochlorinating the side chain of toluene to generate benzyl dichloride and controlling the forming amount of benzyl trichloride ;

介绍了试生产苯甲醛新工艺： 甲苯侧链光照 氯化生成二 氯苄，控制三氯苄的生成量；