Synthesis of high capacity cation exchangers from a low-grade Chinese natural zeolite.

Wang Y1, Lin F
J Hazard Mater. 2009 Jul 30;166(2-3):1014-9. doi: 10.1016/j.jhazmat.2008.12.001. Epub 2008 Dec 6

https://www.ncbi.nlm.nih.gov/pubmed/19135788