nitrite-Oxidation stage 亚硝酸盐氧化阶段
first stage oxidation treatment 一级氧化处理
second stage oxidation treatment 二级氧化处理
two-stage contact oxidation 二级接触氧化
two-stage biological contact oxidation 二级接触氧化
two-stage oxidation 两段氧化
two stage oxidation 两段氧化
With addition of 12%acetic acid in the alkali-oxygen oxidation stage of two-stage method,the yield of BPCA to coal is 37.17%(daf to coal),about more than 34.19%of that One-stage method.
在两段氧化的碱-氧氧化阶段加入12%的乙酸促进剂,苯多羧酸对煤的产率为37.17%(daf),比原煤相对提高34.19%。
参考来源 - 无烟煤两段氧化及产物异构化制对苯二甲酸·2,447,543篇论文数据,部分数据来源于NoteExpress
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