Meanwhile the composition change for gasoline hydrocarbons was inspected 结果表明：光磷钨酸双氧水体系是催化汽油最佳的脱硫体系。
A study on methane partial oxidation to methanol using phosphotungsticacid as catalyst 磷钨酸催化剂部分氧化甲烷合成甲醇的探索性实验研究
Method for the determination of tungsten trioxide content in ammonium paratungstate for import export 进出口仲钨酸铵中三氧化钨含量的测定
Synthesis of benzaldehyde dihexyl mercaptal catalyzed by phosphotungstic acid immobilized on ion exchange resin 树脂固载磷钨酸催化合成苯甲醛正己硫醇缩醛
Abstract : synthetic method of butyl butyrate was investigated using silicotungstic acid ca talyst absorbed on activated carbon 文摘:用活性炭固载硅钨酸催化剂催化合成了丁酸丁酯。
Medical x - ray films used with intensifying screens ; sensitometric simulation of the fluorescent radiation of calcium tungstate intensifying screens 增光屏用x射线胶片钨酸钙增光屏荧光射线感光模拟
Methods for chemical analysis of tungsten concentrates - the ammonium tungstate igniting gravimetric method for the determination of tungsten trioxide content 钨精矿化学分析方法钨酸铵灼烧法测定三氧化钨量
Using the phosphotungstic acid immobilized on active carbon as catalyst , the iso - amyl gallate was synthesized directly by esterifying isoamyl alcohol and gallic acid 摘要以活性炭固载磷钨酸作为催化剂，用没食子酸与异戊醇直接酯化合成了没食子酸异戊酯。
Cyclohexene can be directly oxidized to adipic acid with 30 % h2o2 in the presence of h7 [ p ( w2o7 ) 6 ] ? xh2o without any phase transfer catalyst and organic solvents 摘要报道了在无相转移剂条件下，用磷钨酸催化过氧化氢氧化环己烯合成己二酸，收率最高为72 . 6 % 。
In 1958 , ganzhou concentration plant was established and started its production . after 1963 , tungstic acid , apt , w powder , wc powder and cemented carbide could be produced too 1958年，赣州精选厂建成投产。 1963年以后，进一步发展到生产钨酸、钨酸钠、仲钨酸铵、钨粉、碳化钨粉、硬质合金等。
