Pseudo-boehmite ndiyo nzira yakanakisisa yekugadzira gamma alumina, nekuti chete kubviswa kwemvura ne calcination pa 447 C kunodiwa. Kudzora mashandiro ekuchinja-chinja panguva yekugadzira pseudo-boehmite: supersaturation yemhinduro chinhu chakakosha, kuwedzera pH, tembiricha, tsvina uye hunhu hwe reagents [3,4]. Iva nechokwadi chekuchena kwechinhu ichi uye izvi zvinochinja zvinosarudza morphology, magadzirirwo uye maumbirwo azvo e precipitate. Saka, zvakakosha kutevera zviitiko zvinoitika panguva yekugadzira, kuitira kufanotaura goho uye mhando yechigadzirwa chekupedzisira. Mubasa iri, kugadzirwa kwe pseudo-boehmite kwakagadzirwa nenzira yemvura, uchishandisa industrial grade aluminium sulfate supersaturated solution uye concentrated ammonium hydroxide (28%) se reactants; nzira iyi inozivikanwa yakagadziriswa kudzikisa tembiricha ye reaction pasi peboiling point yeammonia. Kudzora tembiricha ye reactant medium kwakawanikwa nekuwana data uye otomatiki manipulation ye heating medium. Zvinoratidzwa kuti kushandisa reactor atisothermal conditions kunovimbisa hunhu hwekupedzisira hwe pseudo-boehmite inogadzirwa.
Nguva yekutumira: Gumiguru-12-2020