Shaping of zeolite 4A by binderless process

For many commercial uses of molecular sieves it is more desirable to have a larger molecular sieves body or agglomerate rather than the small crystals in order to achieve the highest possible volumetric adsorption capacity as well as to facilitate handling of the adsorbent. At the same time, it is desirable that this agglomerate have not only such characteristics as relatively high attrition resistance and crush strength, but also that it retain substantially all the adsorption capacity, adsorption selectivity, and thermal stability characteristics exhibited by the finely-divided crystalline material. In this paper binderless process for shaping of zeolite 4A is proposed.