Sodium aluminum (iron) phosphate glass ceramics containing of up to 20 wt.% rare earth (RE) oxides simulating pyroprocessing waste were produced by melting at 1250 °C followed by either quenching or slow cooling to room temperature. The iron-free glass-ceramics were composed of major glass and minor phosphotridymite and monazite. The iron-bearing glass-ceramics were composed of major glass and minor monazite and Na-Al-Fe orthophosphate at low waste loadings (5–10 wt.%) and major orthophosphate and minor monazite as well as interstitial glass at high waste loadings (15–20 wt.%). Slowly cooled samples contained higher amount of crystalline phases than quenched ones. Monazite is major phase for REs. Leach rates from the materials of major elements (Na, Al, Fe, P) are 10⁻⁵-10⁻⁷ g cm⁻² d⁻¹, RE elements – lower than 10⁻⁵ g cm⁻² d⁻¹.

通过在1250°C的温度下熔融，然后淬火或缓慢冷却至室温，生产出包含高达20 wt％的模拟高温加工废物的稀土（RE）氧化物的铝（铁）磷酸钠玻璃陶瓷。无铁微晶玻璃由主要玻璃和次要磷酸三dy石和独居石组成。含铁玻璃陶瓷由低废物量（5-10 wt％）下的主要玻璃和次要独居石以及正磷酸钠铝铝铁和高废物量下的主要正磷酸盐和次要独居石以及填隙玻璃组成（ 15–20 wt。％）。缓慢冷却的样品比淬火的样品含有更多的结晶相。独居石是可再生能源的主要阶段。主要元素（Na，Al，Fe，P）材料的浸出率为10 ^-5 -10 ^-7  g g cm^-2  d ^-1，稀土元素–低于10 ^-5  g cm ^-2  d ^-1。