The invention belongs to the technical field of oxidation synthesis and discloses a chemical method for high-selectivity oxidation and oxygen-adding open loop of catechol substance.
本发明属于氧化合成技术领域，公开了一种邻苯二酚类物质高选择性氧化和加氧开环的化学方法。
Such influencing factors as oxygen blowing, argon blowing, alloys adding and ladle status on the end point temperature of ANS - OB refining are analyzed.
分析了ANS—OB精炼终点钢液温度的影响因素，包括吹氧、吹氩、合金添加情况和钢包状况等。
The oversea technology makes further basic study, pays attention to the application of filtering, deaeration, oxygen adding in inner cooling water treatment.
国外基础研究工作较深入，重视过滤、除氧和加氧技术在内冷水处理上的应用。
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