| abstract |
The invention discloses a cerium-nickel co-modified cobalt tetroxide catalyst used in the low-temperature catalytic combustion of vinyl chloride. The catalyst is Co 3 O 4 co-modified by Ni and Ce, which is obtained by CTAB control, in which the molar ratio of oxalic acid to total metals (Co+Ce+Ni) is 1.1:1, and the molar ratio of (Co+Ni):Ce is 10:1‑30:1, Co:Ni molar ratio 9:1‑29:1, Co:Ce molar ratio 9:1‑29:1, total metal (Co+Ce+Ni) and sixteen The molar ratio of alkyl trimethyl ammonium bromide (CTAB) was 2:1. The catalyst has a simple preparation method, has the characteristics of high activity, less by-products, and good stability for the catalytic combustion of vinyl chloride, and is especially suitable for low-temperature catalytic combustion to eliminate chlorinated volatile organic compounds. |