Reference of N1,N1,N6,N6-Tetramethylhexane-1,6-diamine. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine, is researched, Molecular C10H24N2, CAS is 111-18-2, about Removal of Metal Ions in Phosphoric Acid by Electro-Electrodialysis with Cross-Linked Anion-Exchange Membranes. Author is Duan, Xiaoling; Wang, Cun-Wen; Wang, Tielin; Xie, Xiaolin; Zhou, Xingping; Ye, Yunsheng.
There are numerous metallic impurities in wet H3PO4, which causes striking neg. effects on industrial H3PO4 production The purification behavior of metallic impurities (Fe, Mg, Ca) from a wet H3PO4 solution employing the electroelectrodialysis (EED) technol. was studied. The cross-linked polysulfone anion-exchange membranes (AEMs) for EED were prepared using N,N,N’,N’-tetramethyl-1,6-hexanediamine (TMHDA) to achieve simultaneous crosslinking and quaternization without any cross-linkers or catalysts. The performance of the resulting membranes can be determined using quaternization reagents. When the molar ratio of trimethylamine/TMHDA/chloromethylated polysulfone is 3:1:1, the cross-linked membrane CQAPSU-3-1 exhibits lower H2O swelling and membrane area resistance than the noncross-linked membrane. The low membrane area resistance of CQAPSU-3-1 with long alkyl chains was obtained due to the hydrophilic-hydrophobic microphase separation structure formed by TMHDA. EED experiments with different initial H3PO4 concentrations of 0.52 and 1.07M were conducted to evaluate the H3PO4 purification of different AEMs. The EED experiments were more suitable for the purification of wet H3PO4 solution at low concentrations The H3PO4 concentration in the anode compartment could be increased from 0.52 to 1.04M. Through optimization, with an initial acid concentration of 0.52M, CQAPSU-3-1 exhibits an enhanced metallic impurity removal ratio of >72.0%, the current efficiency of >90%, and energy consumption of 0.48 kWh/kg. Therefore, CQAPSU-3-1 exhibits much higher purification efficiency than other membranes at a low initial H3PO4 concentration, suggesting its potential in H3PO4 purification application.
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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica