Cerium nitrate, bụ ihe kacha mma maka imepụta cerium-doped catalyst, ma tinyekwa ya n'ime mkpuchi gauze akpaaka.A na-agbakwunye Cerium na ihe na-enye aka maka mmepụta nke styrene sitere na methylbenzene iji meziwanye nhazi nke styrene.A na-eji ya na FCC catalysts nwere zeolites na-enye ma catalytic reactivity na reactor na thermal nkwụsi ike na regenerator.N'ichepụta ígwè, a na-eji ya wepụ Oxygen na Sulfur efu site n'ịmepụta oxysulfides kwụsiri ike na site na ijikọta ihe ndị na-adịghị mma, dị ka lead na antimony.
Ọkwa | 99.99% | 99.9% | 99% |
NKWUKWU kemikal | |||
CeO2/TREO (% nkeji) | 99.99 | 99.9 | 99 |
TREO (% nkeji) | 39 | 39 | 39 |
Ihe adịghị ọcha n'ụwa | ppm max. | % kacha. | % kacha. |
La2O3/TREO Pr6O11/TREO Nd2O3/TREO Sm2O3/TREO Y2O3/TREO | 50 50 20 15 15 | 0.5 0.5 0.05 0.01 0.01 | 0.5 0.5 0.5 0.05 0.05 |
Ihe adịghị ọcha n'ụwa | ppm max. | % kacha. | % kacha. |
Fe2O3 SiO2 CaO Cl- SO4- SnO PbO NiO CdO KuO CoO SrO K2O | 20 100 100 50 50 3 3 3 3 3 3 3 1 | 0.02 0.03 0.05 0.01 | 0.05 0.05 0.1 0.03 |
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