| 1. | Study on preparation of fluorenone by liquid - phrase oxidation 液相氧化法制取芴酮的研究 |
| 2. | Study on synthesis of 2 , 7 - dibromofluorenone 二溴芴酮的合成研究 |
| 3. | Study on preparation of fluorenone by gas catalytic oxidation process 气相催化氧化法制取芴酮的研究 |
| 4. | Catalyst preparation study for gas - phase oxidation of fluorene to fluorenone 芴气相氧化制芴酮催化剂制作条件的研究 |
| 5. | Synthesis of 3 - chlorofluorenone 氯芴酮的合成 |
| 6. | Study on preparation of fluorenone by means of air liquid phase catalytic oxidation 空气液相催化氧化法制取芴酮的研究 |
| 7. | The methods for chemical analysis of zinc and zinc alloys - the determination of tin content - the phenylfluorone - cetyltrimethyla - mmonium bromide spectrophotometric method 锌及锌合金化学分析方法锡量的测定苯芴酮-溴化十六烷基三甲胺分光光度法 |
| 8. | Methods for chemical analysis of tungsten ores and molybdenum ores . determination of germanium content . distillation separation - phenyl fluorone cetyltrimethyl - ammonium bromide phtometric method 钨矿石钼矿石化学分析方法蒸馏分离,溴化十六烷基三甲胺-苯芴酮光度法测定锗量 |
| 9. | Methods for chemical analysis of copper ores lead ores and zinc ores . determination of germanium content . phenylfluorone - cetyltrimethyl ammonium bromide photometric method after carbon tetrachloride extraction 铜矿石铅矿石和锌矿石化学分析方法四氯化碳萃取分离,溴化十六烷基三甲胺-苯芴酮光度法测定锗量 |
| 10. | Abstract : in this paper , the preparation of the catalysts for the oxidation of fluorene to fluoreone is studied . the influences of the dipping time , calcining temperature , calcining time and the air quantity during the calcination are discussed 文摘:研究了用工业芴气相氧化制取芴酮的催化剂制作条件,考察了浸渍时间、煅烧温度、煅烧时间和煅烧空气量对催化剂制作的影响 |