Abstract ZSM-5 and analcime were successfully synthesized from coal fly ash using hydrothermal method in alkaline solution. The used was taken the Paiton PLTU, one of largest steam power plants Indonesia. purified sulphuric acid for 30 minutes it found that has 17.7 wt.% Si content 2.79 Al content. zeolite synthesis carried out a reactor at 160 o C 3 bar 48 hours both with without alumina addit...

A new locality of zeolite minerals occurs on the NE edge Jedlka village, at SE slope Hlídka hill, 2 km to W Benešov nad Ploučnicí (northern Bohemia, Czech Republic). The mineralization is developed in Cenozoic analcime-nepheline tephrite. Ten mineral species (gmelinite-K, analcime, harmotome, chabazite-Ca, lévyne-Ca, mezolite, natrolite, offretite, phillipsite-K, thomsonite-Ca) were found small...

The aim of this study was to examine the removal ammonium ions from a synthetic model solution by using Na-zeolite-based geopolymers. Na-zeolite (=analcime) is residue mining industry. Three adsorbents were prepared different production steps and metakaolin as blending agent. These novel investigated in fixed-bed column system where effects flow rates with initial concentration 40 mg/L studied....

Five alkali-activated analcime (ANA) sorbents (ANA-MK 1, ANA 2, 3, ANA-MK 4, and 5) were developed for ammonium (NH4+) ion removal. Acid treatment calcination used as pre-treatments analcime, metakaolin (MK) was a blending agent in three sorbents. Sorption experiments performed to evaluate the effects of sorbent dosage (1–20 g L−1), initial NH4+ concentration (5–1000 contact time (1 min–24 h). ...