In 2021, global alumina production reached over 135 million tons and discharged
approximately 200 million tons of red mud, leading to severe environmental safety hazards …

Bauxite refinery residues (red mud) are derived from the Bayer process by the digestion of
crushed bauxite in concentrated caustic at elevated temperatures and pressures. Following …

The synthesis of zeolite materials by hydrothermal transformation of natural Jordanian kaolin
in NaOH solutions of various concentrations was investigated at 100° C for 20 h. A mixture of …

The synthesis of zeolite Linde Type A (LTA) from kaolinite by two different routes:(1)
conventional hydrothermal alkaline activation and (2) alkaline fusion prior to hydrothermal …

Bayer red mud (RM) is an alumina refinery waste product rich in aluminum oxides and
alkalis which are present primarily in the form of sodium hydro-aluminosilicate desilication …

The coal fly ash (CFA) from a coal gasification plant was used as raw materials for X zeolites
synthesis by fusion and hydrothermal method and the ability of CFA-derived zeolites to …

Bauxite residue is a high volume byproduct of alumina manufacture which is commonly
disposed of in purpose-built bauxite residue disposal areas (BRDAs). Natural waters …

The synthesis of low-silica zeotypes by hydrothermal transformation of kaolinite-rich clay
and the nucleation and growth processes of sodalite and cancrinite in the system Na2O …

Caustic nuclear wastes have leaked from tanks at the US Department of Energy's Hanford
site in Washington State (USA) causing hundreds of thousands of gallons of waste fluids to …

Metal clusters and nanoparticles, which have been used to tune the acidity of zeolite
support, are beneficial for promoting the catalytic performance of various reaction processes …