The mother liquor is prepared with PH=8~9; <br>46 <br>dimethylamine, tap water and other material proportions; <br>47 <br>amine salt mother liquor finished product is kept at 25°C.
Preparation of mother liquor with pH between 8 and 9;<br>forty-six<br>The ratio of materials such as dimethylamine and tap water volume;<br>forty-seven<br>The finished amine salt mother liquor is insulated at 25 ℃.
The mother liquor is prepared at a pH of 8-9;<br> 46<br> The ratio of dimethylamine and tap water;<br> 47<br> The finished product of amine salt mother liquor is kept at 25℃.