For improving product purifying the conditions in recrystallization processes were investigated and a new method for the improving product purity is proposed.
For improving product purifying the conditions in recrystallization processes were investigated and a new method for the improving product purity is proposed.
结果表明，采用最佳反应条件，可使合成盐酸二甲双胍的产率提高，产品可一次性达到合格标准，找到了提高产品纯度的新途径。