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- Four preparation methods for aromatic amine were reviewed in the paper: reduction of metals,catalytic hydrogenation reduction,hydration hydrazine reduction and electro-chemical reduction. 综述了还原芳香族硝基化合物制备芳胺的主要方法,包括催化加氢法、金属还原法、水合肼还原法、电化学还原法等。
- Four preparation methods for aromatic amine were reviewed in the paper: reduction of metals, catalytic hydrogenation reduction, hydration hydrazine reduction and electro-chemical reduction. 摘要综述了还原芳香族硝基化合物制备芳胺的主要方法，包括催化加氢法、金属还原法、水合肼还原法、电化学还原法等。
- Keywords hydrazine reductant;chemical plating;metal reclaiming;waste water disposal.; 联氨;还原剂;化学镀;金属回收;废水处理;
- hydrazine reductant 肼还原剂
- An acyl derivative of hydrazine. 酰肼一种由肼衍生而来的酰
- Reductant from an extraneous source is introduced. 外来的还原剂被引进来。
- Reaction with hydrazine forms the hydrazidine. 与肼反应时,形成肼定。
- This paper studies the applying for hydrazine as a strong reductant in chemical plating, metal reclaiming and waste water disposal, and points out how to use safely hydrazine. 研究了联氨作为强还原剂在化学镀、金属回收和废水处理中的应用,并指出了使用联氨应注意安全。
- Hydrazine perchlorate and lithium perchlorate form two eutectics. 过氯酸肼和过氯酸锂形成两种低共熔物。
- The key was to choose high efficiency viscosity reductant. 以大庆黑帝庙稠油为原料，发烟硫酸为磺化剂，合成了稠油磺酸盐。
- Byname: Hydrazine monohydrate.Molecular formula: H2N:NH2.H2O. 产品英文名：Hydrazine;hydrate产品别名： 水合联氨 分子式：H2N:NH2.
- The hydrazine sulfate has been prepared by the hydrazine hydrate. 首先用尿素氧化法制备水合肼,然后加入浓硫酸得产物硫酸肼。
- Carbon was chosen as the reductant to prepare VO2 from V2O5. 摘要本文采用碳热法还原V2O5制备钒的低价氧化物VO2。
- The material is readily prepared by reaction of formaldehyde and hydrazine. 这种物质很容易由甲醛和肼反应而得到。
- The craft, a spy satellite, was carrying around 450kg of toxic hydrazine fuel. 这颗间谍卫星大约运载着 450 千克有毒联氨燃料。
- A kind of reductant compound in solid state has proved itself effective. 通过大量的实验，找到了一种固态复合还原剂。
- Carbon dioxide , CO 2 is a reaction product when urea is used as the reductant. 二氧化碳，二氧化碳是一种反应产物时尿素用作还原剂。
- A t the same t ime, there is a fou r t imes reduct ion in the lo ss of metal. 与旧式机器相比的主要优点是重量只有原来的四分之一.
- Divided step vacuum system,reduct lots of time,save operation cycle. 分割分段式快速吸气、改善传统吸气方式节省大量时间、整面吸气均匀。
- Experimental results show that the ASM has better viscosity reduct... 结果表明,ASM的降粘效果明显,具有较好的开发应用前景。
