Metal deactivator N, N'-Di-acetyladipic dihydrazine was prepared by reacting diethyl adipate with hydrazine hydrate, and then was treated with acetic anhydride.
研究了由已二酸二乙酯与水合肼反应合成己二酰二肼。再用乙酸酐酰化己二酰二肼得到金属减活剂N。
The consumption of caustic soda is mainly caused by formation of sodium hydrate aluminosilicate and it can be calculated from the ratio of N/S of red mud.
拜耳法生产氧化铝的过程中，碱耗的主要原因是因为有钠硅渣的生成，碱耗可以用赤泥钠硅比（N/S）表征。
The consumption of caustic soda is mainly caused by formation of sodium hydrate aluminosilicate and it can be calculated from the ratio of N/S of red mud.
拜耳法生产氧化铝的过程中，碱耗的主要原因是因为有钠硅渣的生成，碱耗可以用赤泥钠硅比（N/S）表征。
应用推荐