This work investigated the separation of potassium from sodium in alkaline solution using substituted phenol-based extractants.Superior potassium extraction was achieved with 4-tert-butyl-2-(α-methylbenzyl)phenol(t-B...This work investigated the separation of potassium from sodium in alkaline solution using substituted phenol-based extractants.Superior potassium extraction was achieved with 4-tert-butyl-2-(α-methylbenzyl)phenol(t-BAMBP)than 4-sec-butyl-2-(α-methylbenzyl)phenol(BAMBP).The optimum conditions for the extraction were 1 mol/L t-BAMBP,3:1 volumetric phase ratio(O/A),and two extraction stages.After cross-current extraction,the extraction ratio of potassium reached 90.8%.After scrubbing with deionised water at phase ratio of 4:1 and scrubbing stage of 4,a sodium scrubbing efficiency of 88.2%was obtained.After stripping using 1 mol/L H_(2)SO_(4) at phase ratio of 3:1,the stripping efficiency of potassium reached 94.2%.The potassium/sodium(K/Na)concentration ratio increased 14.3 times from 0.15 in the feed solution to 2.3 in the stripping solution.The efficient separation of potassium from sodium in alkaline solution was achieved via solvent extraction with t-BAMBP.展开更多
The mixture containing trans and cis former of 4-（trans-4’-n-propylcyclohexyl）cyclohexanol was prepared by hydrogenation of 4-（trans-4’-n-propylcyclohexyl）phenol with ruthenium/carbon catalysts.Isomerization rea...The mixture containing trans and cis former of 4-（trans-4’-n-propylcyclohexyl）cyclohexanol was prepared by hydrogenation of 4-（trans-4’-n-propylcyclohexyl）phenol with ruthenium/carbon catalysts.Isomerization reaction was performed at 200℃ without separating catalysts,the mass ratio of trans former to cis former was 71.1:28.9,the yield of trans-4-（trans-4’-n-propylcyclohexyl）cyclohexanol was 56.3%.The product was characterized by IR,MS,DSC and13C NMR.The possible reaction mechanism was also dicussed.展开更多
基金Projects(52034002,U1802253)supported by the National Natural Science Foundation of ChinaProject(2019YFC1908401)supported by the National Technology Support Project of China。
文摘This work investigated the separation of potassium from sodium in alkaline solution using substituted phenol-based extractants.Superior potassium extraction was achieved with 4-tert-butyl-2-(α-methylbenzyl)phenol(t-BAMBP)than 4-sec-butyl-2-(α-methylbenzyl)phenol(BAMBP).The optimum conditions for the extraction were 1 mol/L t-BAMBP,3:1 volumetric phase ratio(O/A),and two extraction stages.After cross-current extraction,the extraction ratio of potassium reached 90.8%.After scrubbing with deionised water at phase ratio of 4:1 and scrubbing stage of 4,a sodium scrubbing efficiency of 88.2%was obtained.After stripping using 1 mol/L H_(2)SO_(4) at phase ratio of 3:1,the stripping efficiency of potassium reached 94.2%.The potassium/sodium(K/Na)concentration ratio increased 14.3 times from 0.15 in the feed solution to 2.3 in the stripping solution.The efficient separation of potassium from sodium in alkaline solution was achieved via solvent extraction with t-BAMBP.
文摘The mixture containing trans and cis former of 4-（trans-4’-n-propylcyclohexyl）cyclohexanol was prepared by hydrogenation of 4-（trans-4’-n-propylcyclohexyl）phenol with ruthenium/carbon catalysts.Isomerization reaction was performed at 200℃ without separating catalysts,the mass ratio of trans former to cis former was 71.1:28.9,the yield of trans-4-（trans-4’-n-propylcyclohexyl）cyclohexanol was 56.3%.The product was characterized by IR,MS,DSC and13C NMR.The possible reaction mechanism was also dicussed.
