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- Control of conditions on preparing anhydrous sodium sulfide by vacuum drying 真空干燥脱水制备高纯度无水硫化钠条件控制
- anhydrous sodium sulfide 无水硫化钠
- Pengshan Anhydrous Sodium Sulfate Plant. 安徽全力集团有限公司彭山元明粉厂。
- These effects are antagonizeed by sodium sulfide. 这些效果被硫化钠中和了。
- Sodium sulfide spent caustic liquor was treated by wet air oxidation (WAO). 采用湿式空气氧化法处理含硫化钠废碱液。
- Aspirin is synthesized through O-acylating reaction from salicylic acid and anhydride acetic acid with anhydrous sodium carbonate as catalyst. 以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O-酰化反应合成了阿司匹林。
- An anhydrous sodium borate used in the manufacture of glass and various ceramics. 无水硼砂无水硼化合物,用于制造玻璃和各种陶瓷。
- Methods:Samples were extracted by methylene chloride,dehydrated by anhydrous sodium sulfate and determinated by GC-MSD. 方法:样品用二氯甲烷萃取,无水硫酸钠脱水,气质联用法检测。
- Tetrahydrothiophene was synthesized using iodine as a catalyst from 1,4-dichlorobutane and sodium sulfide. 以1,4-二氯丁烷和硫化钠为原料,碘为催化剂,乙醇为溶剂合成了四氢噻吩。
- The catalyst carrier for biomass pyrolysis was prepared by red mud,fly ash and anhydrous sodium carbonate. 以赤泥和粉煤灰为原料,无水碳酸钠为造孔剂,制备了用于生物质裂解的催化剂载体。
- Phenol,4-(9H-carbazol-3-ylamino)-, reaction products with sodium sulfide and sulfur, leuco deriv. 名称 4-(9H-3-咔唑基氨基)苯酚与硫钠和硫的反应产物;
- This article described the crystal model of anhydrous sodium sulfate in DTB crystallizer. 论述了用DTB型结晶器结晶硫酸钠结晶模型。
- Effects of sodium sulfide on collectorless flotation of galena have been investigated. 本文研究了硫化钠对方铅矿无捕收剂浮选的影响。
- Phenol, 4-(phenylamino)-, reaction products with sodium sulfide and sulfur, leuco deriv. 名称 4-苯胺基苯酚与多硫化钠及硫的反应产物(无色的衍生物);
- The synthesis of sucrose octaacetate(SOA) from sucrose with acetic anhydride in the presence of anhydrous sodium acetate is reported. 报道了在无水乙酸钠存在下,蔗糖和乙酸酐反应合成蔗糖八乙酸酯(SOA)。
- Diallyl trisulfide was synthesized with a yield of 76.4% based on sodium thiosulfate, allyl bromide and sodium sulfide. 以硫代硫酸钠、烯丙基澳和硫化钠为原料,合成了二烯丙基三硫,产率为76.;4%25;
- Residual lignins from sodium sulfide pretreatment kraft pulping were studied by chemical and spectral methods. 用化学和波谱分析研究了硫化钠预处理硫酸盐制浆中残余木质素的化学结构特性。
- The application of film evaporator in the p roduction of sodium sulfide is introduced. 介绍了薄膜蒸发器在硫化碱蒸发工序中的应用情况。
- The experimental process on synthesis of roxithromycin was studied by using erythromycin oxime and MEMC as raw material under the catalytic action of anhydrous sodium carbonate. 研究了以无水碳酸钠为催化剂,红霉素肟与甲氧基乙氧基氯甲醚(MEMC)为原料,一步合成罗红霉素的实验过程。
- The effects of the amount of sulfuric acid, reaction duration and the addition of anhydrous sodium sulfate as dehydration agent on the yield of OFPMA were studied. 讨论了硫酸的用量、反应物配比、反应温度和反应时间对产物收率的影响。