Various commercial methods preventing vanadium pollution of catalyst were expounded and Suggestions were also proposed.
对工业上应用的各种防止钒污染的方法分别作了阐述，并提出了建议。
Metal passivator can inhibit nickel and vanadium pollution on the catalytic cracking catalysts and improve the property of polluted catalysts.
金属钝化剂可以抑制镍和钒等金属对催化裂化催化剂的污染，使被污染催化剂的性质得到改善。
Some countermeasures and research prospects have been put forward to prevent and control the increasingly serious pollution of Vanadium in soil.
最后针对土壤中钒污染日益严重的状况，提出了几点防治对策和研究展望。
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