Product Details
Atomic level zirconia project
This project adopts zirconium oxychloride as raw material, dissolved into an aqueous
solution and extracted with TBP-HNO3-HCL system. Zirconium and hafnium are separated, sedimentation and calcined, and Hafnium free zirconia and hafnium dioxide are
formulated separately.
Extraction
In the extraction process, TBP is used as the extractant, the
chemical formula is (C4H2O)PO is used as the diluent of kerosene,
and the organic phase is acidified with 6mol nitric acid, so that
the acidity of the organic phase reaches saturation, and then
extracted with the material liquid, Zr enters the organic phase,
and Hf remains in the water phase, so as to achieve the purpose of
separating Zr and Hf. The chemical reaction of the extraction
process is:
ZrO2+ +2H+ +2NO3- +CI- +2TBP----Zr(NO3)2CI2 .2TBP
ZrO2+ + NO3-+ CI- + 2TBP ---- Zr(NO3)CI .2TBP
Calcination
The production of zirconium dioxide (hafnium dioxide) from
zirconium tetrachloride requires dissolution, extraction separation
and precipitation, and finally calcination.
ZrCI4 + H2O ------ZrOCI2 + 2HCI
HfCI4 + H2O ------HfOCI2 + 2HCI
ZrO2+ +2OH+HO2 ------- Zr(OH)4
Zr(OH)4 After calcination into semi-finished products ZrO2
Zr(OH)4------ ZrO2 + HO2 calcination temperature 900ºC
Main equipment list
Item | Quantity | Remark |
Extraction tank system | 6 | |
top - suspended centrifuge | 3 | |
air compressor | 1 | |
Water softening equipment | | |
vacuum system | 10 | |
Frame filter | 4 | |
Pusher kiln | 4 | |
Exhaust gas system | 6 | |
off-gas treatment system | 6 | |
Feeding and exhaust system | 2 | |
Hopper | 10 | |
Crusher | 3 | |
vibrating screen | 3 | |
forklift | 2 | |
Silo | 1 | |
Packing equipment | 1 | |
Company Profile
Suzhou CMT, an international technology-oriented engineering group
company, specialized in Turn-key Projects, providing services of
project consulting, engineering design, construction supervision,
project management and general contracting.
We have strong technical support. There are more than 1000
personnel in CMT, of which 60% are professional technicians. Around
50 are Middle and senior engineer and over 80 personnel own
professional registered certificates.
The head office is located in Suzhou, equipped with more than 6
manufacturing bases all over China, spreading from Shanghai,
Jiangsu, Zhejiang, Shandong, Shanxi, Hebei. We are involved in
several aspects, including heavy industry, light industry,
environmental protection projects, etc.
After all these years, our technology and service have been
exported to more than 50 countries in the world, especially in
Asia, Middle East, Africa and South America, which earns us a great
reputation. We adhere to the principle of "Quality first,
service-orientation" and try to provide the best service. We warmly
welcome you to our company and create brilliance together!