Recovering silver from photosensitive waste emulsion

There are many ways to recover silver from waste emulsions used in the manufacture of photosensitive materials plants. More important methods are: waste latex containing silver (2.75 ~ 8.0) × 10 -4 , first add about 1.5% of the weight of waste latex NaOH, heated to 85 ° C to destroy gelatin.

Smart packaging or new growth

Pharmaceutical packaging is an important part of the packaging industry. The data shows that the total production value of China's pharmaceutical packaging industry has accounted for more than 10% of the total value of the national packaging industry, which is much higher than the ratio of the e