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- Keywords metallurgical technology;wulfenite;leaching with sodium hydroxide;molybdenum leaching rate; 冶金技术;彩钼铅矿;氢氧化钠浸出;钼浸出率;
- leaching with sodium hydroxide 氢氧化钠授出
- Leaching of arsenic from arsenic and iron slag obtained from cobalt metallurgy with sodium hydroxide has been studied. 研究了用氢氧化钠浸出钴冶金过程中产出的高砷铁渣中的砷。
- The parent ketone can then be recovered at a later time by decomposition with sodium hydroxide. 产物在氢氧化钠存在下可以分解从而还原酮。
- Acidic solutions of sulfuric acid, alkalescence franctional solation sodicity franctional with sodium hydroxide. 碱性溶液的酸度以硫酸的分数来表现，碱性溶液的碱度以氢氧化钠的分数来表现。
- Alkyl balides react with sodium borohydride and selenium in the presence of solid sodium hydroxide to give dialkyl selenides in excellent yields. 在固体氢氧化钠存在下，卤代烃及用氢化钠与硒粉作用，在乙醇溶液中制得二烃基硒醚。
- Conclusion The decreased expression of PEDF plays a permissive role in the formation of CNV in the rats corneal after cautery with sodium hydroxide. 结论PEDF的下调可能是大鼠角膜碱烧伤后CNV的主要原因之一。
- NH 4 + when heated with sodium hydroxide solution, a colorless gas (ammonia) is given out which can turn wet red litmus paper to blue. 铵盐和氢氧化钠溶液共热时会放出一种无色气体(氨)，它可把湿的红色石蕊试纸变蓝。
- Treat the PWB with sodium hydroxide at the proper temperature first, and dissolve the metallic elements using nitric acid. 在适当的温度条件下,先采用氢氧化钠处理印刷线路板(声卡,显卡,网卡,主板),再利用硝酸将其中的金属成分溶出。
- And the total acidity of zinc nitrate was determined by titrating zinc oxide neutratized phosphating solution with sodium hydroxide standard solution. 加氧化锌中和后的磷化液用氢氧化钠标准溶液滴定，测得硝酸锌的总酸度；
- Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide. 肥料.;在氢氧化钠作用下其它物质释放出的氨气中测定氨态氮的含量
- Using citrate as complex, the total acidity of zinc dihydrogen phosphate and zinc nitrate was determined by the titration with sodium hydroxide standard solution. 摘要用柠檬酸盐作络合剂，氢氧化钠标准溶液滴定，测定磷酸二氢锌和硝酸锌的总酸度；
- The technological process of catalytic synthesis of MC Nylon with sodium methylate instead of the conventionallyused catalyst-grain sodium hydroxide is researched. 研究了甲醇钠替代传统催化剂氢氧化钠催化合成MC尼龙的工艺方法。
- Phytin was extracted with diluted hydrochloric acid, after precipitating the effluent and transforming the precipitate with sodium hydroxide, sodium phytate solution was produced. 菲汀经酸浸、沉淀、加碱使沉淀转化可制得植酸钠溶液。
- MethodsThe content of sulfate groups was determined by converting heparin sodium into heparinic acid with cation exchange resin and by titrating with sodium hydroxide. 方法将肝素钠通过阳离子交换树脂转变为肝素酸,用氢氧化钠进行滴定,通过电导率的变化确定滴定终点,对硫酸基进行定量分析。
- Objective To observe the relationship between the changes of pigment epithelium derived factor (PEDE) and lurization in the rats corneal after cautery with sodium hydroxide. 摘要目的探讨大鼠碱烧伤角膜新生血管形成(CNV)过程与色素上皮衍生因子(PEDF)表达的相关性。
- A reacting dynamics has been studied,which is about the reaction of the low-grade roasted molybdenite leached with sodium carbonate solution. 对低品位钼焙烧矿和由混合矿粉制成的圆盘样品分别进行了碳酸钠溶液浸取反应动力学研究。
- Viscose manufacturing process involves the reaction of cellulose with sodium hydroxide to form an alkali cellulose. The alkali cellulose is then treated with carbon disulfide to form cellulose xanthate. 粘胶的生产过程包括纤维素与氢氧化钠反应形成碱纤维素的过程。碱纤维素再经二硫化碳处理制成纤维素黄酸酯。
- The synthesis of ethylene glycol dibutyl ether(EDB) based on the Williamson reaction of ethylene glycol monobutyl ether(EB) with sodium hydroxide and bromobutane(BuBr) was investigated. 以乙二醇单丁醚(EB)和溴丁烷(BuBr)为主要原料,在NaOH作用下进行Williamson反应制备乙二醇二丁醚。
- Aldononitrile acetates and alkaline nitrobenzene oxidations were used to analyze the change of structuia1 polysaccharides and composition of lignin in 80% ethanol-extracted rice straw treated with sodium hydroxide, ammonium bicarbonate, or urea. 摘要以氢氧化钠、碳酸氢铵和尿素处理的稻草为研究对象，采用糖腈乙酰酯法和碱性硝基苯氧化法，分别测定了化学预处理前后稻草用80%25乙醇浸提残渣中结构性多糖和木质素组分的变化。
