Prepn process of composite oxide based on cerium oxide and zirconium oxide
A composite oxide and preparation technology, which is applied in the field of preparation technology of composite oxides based on cerium oxide and zirconia, can solve the problems of long production process and high cost, improve product quality, improve thermal stability, and reduce manufacturing costs. cost effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0047] Using monazite and fluorocarbon-cerium-lanthanum mixed rare earth concentrate as raw materials, it is converted into mixed rare earth chloride solution by sulfuric acid roasting, water leaching, filtration, ammonium bicarbonate precipitation, and hydrochloric acid dissolution, or the water leaching solution is extracted and transformed, and hydrochloric acid reverse extraction is used to obtain the mixed The mixed rare earth chloride solution or high-grade monazite and fluorocarbon-cerium-lanthanum mixed rare earth concentrate is acid washed, sodium hydroxide decomposition, filtered, washed, dissolved in hydrochloric acid, and purified to obtain the mixed rare earth chloride solution. The obtained mixed rare earth chloride solution (a) is separated by praseodymium and neodymium to obtain lanthanum cerium praseodymium mixed rare earth chloride (b), and an outlet can also be opened at a certain stage of the extraction section to obtain lanthanum cerium praseodymium mixed rare...
Embodiment 2
[0056] Using fluorocarbon cerium lanthanum rare earth concentrate as raw material, it is converted into mixed rare earth chloride solution by sulfuric acid roasting, water leaching, filtration, ammonium bicarbonate precipitation, and hydrochloric acid dissolution, or water leaching solution is extracted and transformed into mixed rare earth chloride by hydrochloric acid back extraction. The solution or fluorocarbon cerium lanthanum rare earth concentrate is acid washed, sodium hydroxide decomposition, filtration, washing, hydrochloric acid dissolution, and purification to obtain a mixed rare earth chloride solution. The obtained mixed rare earth chloride solution (a) is separated by praseodymium and neodymium to obtain lanthanum cerium praseodymium mixed rare earth chloride (b), and an outlet can also be opened at a certain stage of the extraction section to obtain lanthanum cerium praseodymium mixed rare earth chloride (c). The mixed rare earth chloride (a) solution is separated ...
Embodiment 3
[0064] Using monazite rare earth concentrate as raw material, it is decomposed by sodium hydroxide, filtered, washed, dissolved in hydrochloric acid, and purified to obtain a mixed rare earth chloride solution. The obtained mixed rare earth chloride solution (a) is separated by praseodymium and neodymium to obtain lanthanum cerium praseodymium mixed rare earth chloride (b), and an outlet can also be opened at a certain stage of the extraction section to obtain lanthanum cerium praseodymium mixed rare earth chloride (c). The mixed rare earth chloride (a) solution is separated by cerium and praseodymium to obtain lanthanum-cerium mixed rare earth chloride (d), and can also be controlled during the separation of lanthanum-cerium mixed rare earth chloride to obtain lanthanum-cerium mixed rare earth chloride (e). Lanthanum-cerium-praseodymium mixed rare earth chloride (b) is subjected to cerium-praseodymium to obtain cerium-praseodymium mixed rare earth chloride (f). The typical rare e...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More