Method for the separation of titanium, zirconium, iron, and aluminum from one another and for their subsequent determination

Abstract

A method is d c~c ribe d for t he se par ation of t itan ium , zi rco nium , iron, and aluminum from on e anothcr a nd for t heir subse qucnt d etermin ation . Iron i s first precipitated with I -ni t roso-2-naphthol after compJex i ng t he t itanium and zi rconium with citrate to pre vent t heir prec ipi tation . Titanium and zirconium are th en co llectivcly prec ipi tated with cupferron and subsequ en t ly se parated from each other by prec ipi tating t he titan ium wi t h 8-hydroxyquinoline after co mplexing the zircon ium wi th ct hylcnecliamin etctraacet i c acid . A luminum a nd zirconium are r ecovcred from their r cs pective so l u t ion s by prec ipi tation with cupfc r ron .Th e accuracy of t he mcthod w as p rovcd b y an alyz in g sy ntheti c so lu tio ns co n taining known amounts of t he foul' c lem ents.

Synthesis and Characterization of a Perovskite Barium Zirconate (BaZrO3): An Experiment for an Advanced Inorganic Chemistry Laboratory

“…Upon addition of a Cupferron solution, the Zr 4+ ions remaining in the filtrate are precipitated out of the solution as zirconium cupferrate, Zr(C 6 H 5 N 2 O 2 ) 4 . 16 Both BaSO 4 and zirconium cupferrate are then subjected to calcination in a reaction furnace to remove carbonaceous impurities such as remaining filter paper and soot from the sample. In addition, zirconium cupferrate is also transformed to ZrO 2 upon calcination.…”

Drying kinetics and microstructure evolution of nano-zirconia under microwave pretreatment

“…In the 1950s and 1960s, with the rise of fine ceramic industry research, the research and development of nano-zirconia powder entered a rapid development stage. In 1956, Clabaugh W S et al [2] prepared nano-ZrO2 powder with oxalate as precipitant, which made the research on the preparation of zirconia powder by liquid chemical method into a hot stage; In 1968 and 1974, Livage J, Katg G, Mitsuhashi T. et al [3] studied and improved the preparation method of ZrO2 Powder by hydrothermal decomposition with soluble zirconium salt as the main raw material; In the late 1970s, the method of preparing ZrO2 powder with various organic raw materials appeared, which caused the upsurge of scientific researchers all over the world to further explore and improve the preparation method and process of zirconia powder, and found some new preparation methods to obtain ultra-pure and highly dispersed nano-ZrO2 powder. Nevertheless, this kind of method has little industrial value because of its complex process [4,5].…”