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- sodium sulfide reagent 硫化钠试剂
- 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。
- 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。
- 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;
- 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);
- 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 method that the gold concentrate adding sodium sulfide is roasted could effectually raised the recoveries of gold,silver and copper. 该方法是将金精矿加入硫化钠后进行焙烧预处理,可有效地提高金、银、铜的回收率。
- Experiment results show that as cooking additive quinone compounds are more suitable for soda cooking without sodium sulfide. 结果表明,醌类蒸煮助剂更适用于无硫化钠存在的烧碱法蒸煮。
- The preparation process with common copper salt, sodium sulfide and N, N-dialkyl dithio formate as material is one simple chemical reaction process. 该制备方法是以常见的铜盐、硫化钠及N，N-二烷基二硫代甲酸盐为原料，通过简便的化学反应剂可制得单分散硫化铜半导体纳米颗粒。
- A treatment process to reclaim phenol and neutralize sodium sulfide with hydrogen sulfide gas and alkaline residue was put forward. 从碱渣来源分析碱渣污染物特征和游离碱浓度,提出用硫化氢废气中和碱渣回收粗酚、硫化碱的处理工艺。
- The collectorless flotation of arsenopyrite in the presence of sodium sulfide,that is,sodium sulfide-induced flotation,was investigated. 研究了减性介质中硫化钠作还原电位调整剂时砷黄铁矿的无捕收剂浮选,即硫化钠诱导浮选。
- Kraft process: Chemical method for producing wood pulp using caustic soda and sodium sulfide as the liquor in which the pulpwood is cooked to loosen the fibres. 硫酸盐制浆法: 生产木浆的一种化学方法,用苛性钠和硫酸钠作为溶液,把纸浆原料放在里面煮,使其纤维松释。
- Lower concentrationof sodium sulfide associatedwith the complex enzyme was studied for reducing the amount of sulfide in the paint unhairing of yak hide. 采用碱酶(一种碱性蛋白酶、碱性脂肪酶和糖化酶的复合酶)结合脱毛法,目的是降低牦牛皮脱毛工序中硫化钠的用量。
- A Lower concentrationof sodium sulfide associatedwith the complex enzyme was studied for reducing the amount of sulfide in the paint unhairing of yak hide. 采用碱酶(一种碱性蛋白酶、碱性脂肪酶和糖化酶的复合酶)结合脱毛法,目的是降低牦牛皮脱毛工序中硫化钠的用量。
- Sodium sulfide pretreatment can promote sulfur combining chemically with lignin.The amount of methoxyl group decreases after wood chip being treated by sodium sulfide. 结果表明,硫化钠处理能促进硫与木片中木质素的结合,而甲氧基的含量有所下降。
- In Qilu’s Ethylene Plant,sodium sulfide in spent lye is slowly oxidized by air to produce soluble sulfate which is discharged to spent water disposal system. 采用空气缓慢氧化处理乙烯装置废碱液中的硫化钠 ,使之生成可溶性的硫酸盐 ,从而可排入污水处理系统处理。
