Study on the destruction process of cationic exchange resins treated by Li2CO3-Na2CO3-K2CO3 molten salt

Identification of folic acid and sulfaquinoxaline using a heterometallic Zn–Eu MOF as a sensor

“…5c). 51–53 The appearance of S atom peaks was attributed to the existence of SQX in the structure of 1 after immersion. Simultaneously, the N 1s peaks of complex 1 before and after soaking the SQX were analyzed, as shown in Fig.…”

Catalytic behavior of Mn during molten salt oxidation of cationic exchange resins in Li2CO3–Na2CO3–K2CO3 melt

“…The characteristic peaks at 1594, 1516, and 1451 cm −1 are benzene ring stretching vibration peaks. 27 However, only two peaks, 1516 and 1451 cm −1 , can be seen, indicating that the benzene ring has been destroyed at 650 °C. The stretching and anti-stretching vibrational peaks of –SO 2 – in the sulfonic acid group are 1180 and 1130 cm −1 , respectively.…”

“…Thermogravimetry is a necessary tool to study the thermal oxidation of organic waste, to obtain the main degradation temperature intervals of the waste and to provide direction for the study process. 27 The analysis was conducted to comprehend the influence of Mn doping during the oxidation process of cation exchange resins (Fig. 2).…”

“…According to the previous research on the decomposition process of cationic resin, these three stages can be briefly divided. 27–30 The first stage is the evaporation of equilibrium water (30–225 °C). The resins have been adequately dried before the experiment.…”

The effect of air on oxidation decomposition of uranium-containing cationic exchange resins in Li2CO3–Na2CO3–K2CO3 molten-salt system

“…Our group investigated the destruction process of resins using the ternary eutectic carbonate (Li 2 CO 3 –Na 2 CO 3 –K 2 CO 3 ), and demonstrated that this molten salt system was an effective medium to process resins at low temperatures, thereby reducing the volatilization of radionuclides. 17 Antonetti et al 18 conducted pyrolysis experiments on cation exchange resins (CERs) doped with cobalt and cesium and demonstrated that the presence of Co and Cs on the resin inhibited the transfer of sulfur to the gas phase while accelerating the degradation of volatile carbon compounds. Yang et al 19 investigated the volatilization of Cd, Co, Ce, Cs, Pb, and Sr doped with different contents of resins in binary eutectic carbonate (K 2 CO 3 –Na 2 CO 3 ) at 710 °C.…”