How to produce synthetic zeolite powder?

Process Description:

Synthetic zeolite powder 3A and 5A are transformed from synthetic zeolite powder 4A by ion exchange, and synthetic zeolite powder 10X is transformed from synthetic zeolite powder 13X by ion exchange. Since the processes of making synthetic zeolite powder 4A and 13X are nearly the same.

The manufacturing process of synthetic zeolite powder 4A can be divided into material preparing, mixing, crystallization, filtering, washing, drying and packing. The production method is called hydrothermal synthesis.

The raw materials for manufacturing synthetic zeolite powders are the same including NaOH, Al (OH)_3, water and water glass (Na₂SiO₃ solution. After mixing the Al(OH)₃ solution and NaOH solution by certain rate, NaAlO₂ solution is generated. Then NaAlO₂ solution, NaOH solution, Na₂SiO₃ solution and water are mixed by certain rate in the mixing tank. After heating the tank for a certain time, we got the raw 4A crystal. Then the 4A crystal is put into the filter tank for filtering and washing, drying and packing.

For the producing process for synthetic zeolite powder 5A and 3A, it is much the same with production of synthetic zeolite powder 4A. After getting the 4A crystal, it is transferred into the ion exchange tank. If want to get synthetic zeolite powder 5A, we put the CaCl₂ solution in iron exchange tank. If want to get synthetic zeolite powder 3A, we will put the KCl solution in ion exchange tank. After heating the ion exchange tank, the solution is filtered, washed, dried and packed. Finally we get the final 5A or 3A synthetic zeolite powder.

The manufacturing process of synthetic zeolite powder 13X is same with 4A synthetic zeolite powder, only the mixing rate is different. After getting 13X crystal, we put the crystals into the ion exchange tank, and also put the CaCl₂ solution in, after heating, filter, washing, drying and packing, we got the final synthetic zeolite powder 10X.