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锦西市钼选厂多年来沿用2~#油选矿,尾矿含钼较高,尾矿返回再选又影响精矿品位,每月损失数十万元,且造成尾矿水污染。1989年6锦化有机厂、化工研究院及钢屯高中化学教研组与该厂化验室联合攻关,以自制4~#油取代2~#油取得满意进展。 一、4~#油的研制 中间产物巴豆醛的合成,其反应式为: 稀NaOH2CH_3CHO → CH_3CH=CHCHO+H_2O 0～20℃ 巴豆醛
Jinxi City, Molybdenum beneficiation plant over the years used 2 ~ # oil dressing, tailings molybdenum higher tailings re-election and also affect the quality of concentrate, the monthly loss of several hundred thousand dollars, and the tailings water pollution. In 1989, 6 Jinhua Organic Plant, Chemical Research Institute and Gaotun High School Chemistry Teaching and Research Team jointly researched with the laboratory of the plant to make satisfactory progress with homemade 4 ~ # oil replacing 2 ~ # oil. First, the synthesis of 4 ~ # oil crotonaldehyde synthesis, the reaction is: dilute NaOH2CH_3CHO → CH_3CH = CHCHO + H_2O 0 ~ 20 ℃ crotonaldehyde