活性氢
- 名active hydrogen;reactive hydrogen
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本文研究了含活性氢的氯羟丙基磷酸酯(CHPA)对聚氨酯(PU)软泡的化学阻燃作用及其阻燃机理。
The flame-retarding effect and mechanism of chlorohydroxypropylphosphate ( CHPA ) containing active hydrogen on PU foam were studied .
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讨论了n(Si-H)∶n(Si-Vi)值、含氢硅油中活性氢的质量分数及耐漏电起痕添加剂的用量对液体硅橡胶性能的影响。
The effects of n ( Si-Vi )∶ n ( Si-H ), the mass fraction of active hydrogen in hydrogen-containing silicone oil , and the amount of additives of electric leakage resistant on the properties of LSR were discussed .
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Zn-Al改性能增加分子筛的脱硫效果,其原因可能是增加了分子筛的供氢能力,形成表面活性氢,促使噻吩饱和、开环裂化。
The reason for the increase of desulfuration effect of modification by Zn-Al gel may be that the zeolite by modification enhances the supply ability of active hydrogen , which promotes saturation and cracking of thiophene .
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在CO/H2O系统中,发生的水煤气变换反应(WGSR)能产生高活性氢,该活泼氢能与煤热解产生的自由基结合生成稳定的液化产物,从而提高了液化的转化率。
In CO / H2O system , the water gas shift reaction ( WGSR ) produces high active H which can stab the residuals in order to improve the liquefaction conversion .
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但当体系中有大量的活性氢时,这种影响将被掩盖;
This effect was diminished when components containing active hydrogen are present .
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含氢硅油中活性氢的测定
Testing of Active Hydrogen in Hydrogen-Containing Silicone Fluid by ~ 1 H NMR
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余下的两个活性氢位置仍然能与胺类、醛类发生曼尼期碱的缩合反应。
The other two activated hydrogens still can take place mannich reaction with amine and formaldehyde .
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含有活性氢原子化合物的羧基化反应
Carboxylation of active hydrogen compounds
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讨论了活性氢与异氰酸酯基团的摩尔比、反应温度、反应时间对封闭反应的影响;
The effects of the mole ratio , reacting temperature and time on blocking reaction for prepolymer were studied .
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采用化学滴定法测定未反应活性氢的质量分数,以确定反应的收率;
The yield of this reaction was determined using chemistry titration by which the unreacted active hydrogen was detected .
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根据与氮相连结的活性氢原子的多寡与有无,讨论了伯、仲、叔胺类溶剂化能力的强弱。
The number of active hydrogen atoms attached to nitrogen atom of different classes of amine determine their effectiveness in extraction of metals by solvation .
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镁基储氢材料在一定温度下加热放出的活性氢可以与噻吩发生加氢脱硫反应。
Magnesium-based hydrogen storage material , when heated at certain temperature , will release active hydrogen that could react with thiophene , which is called hydrodesulfurization .
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探讨了磺酸钙基脂晶型转化的反应机理,分析了不同活性氢物质作转化剂对晶型转化的影响。
The crystal transforming mechanism of calcium sulfonate grease was discussed , and the effect of different active hydrogen substances as transforming agents on crystal transform was analyzed .
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供氢剂在无催化剂和氢气存在条件下,可提供活性氢原子推迟或阻止第二液相的形成,有效抑制生焦;
Hydrogen donor can provide active hydrogen atom to postpone or control the forming of the second liquid phase and effectively restrain the coking when catalyst and hydrogen were absent .
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本文采用共沉淀法合成了一种三组分铁基催化剂,催化剂有双重功能:分解水蒸气提供活性氢和氧;催化裂化使大分子重油裂解为小分子轻质油。
In this paper , an iron based catalyst composed of three metal oxide was prepared through co-precipitation method . The catalyst shows dual function : decompose the steam to produce active hydrogen and oxygen ; catalytic crack of large molecules into lighter oil .
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研究了使用不同的外给电子体进行丙烯聚合时,DQ催化剂活性、氢调敏感性、立体定向性以及聚合物相对分子质量和相对分子质量分布的变化。
Effects of various external electron donors on activity , response to hydrogen regulation and stereoselectivity of DQ catalyst in propylene polymerization were studied .
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采用新研制的高活性加氢催化剂LY-9702与LY-8602构成复合床催化剂,可以使加氢产品合格。
Using the double bed catalysts , composed of newly developed LY-9702 catalyst and LY-8602 catalyst , could make the products up to standard .
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聚合物载体上功能基配体对不同催化活性物种氢甲酰化催化性能的影响
Influence of different catalytic active species and polymer ligands on Hydroformylation properties of polymer-supported catalysts
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研究了1,3-二醇酯为内给电子体的丙烯聚合ND-01系列催化剂的活性、氢调敏感性、定向性及动力学行为。
Activity , hydrogen response , stereospecificity and kinetic behavior of catalysts with 1,3-diol dibenzoate as internal donor for propylene polymerization were studied .
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介绍了电沉积法制备高活性析氢电极的发展、现状及应用前景。
The development and present status of preparing high-activity hydrogen evolution electrode were described by examples , and its application in future was also prospected .
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通过性能表征并与现有催化剂对比表明,该催化剂具有较高的聚合活性、氢调敏感性和优良的颗粒形态。
By characterization of the catalyst , AY-1000 has higher activity , more sensitive hydrogen response and better particle morphology as comparing to previous catalyst .
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茂钛配合物/纳米氢化钠高活性加氢催化剂活性物种相态SDS/聚丙烯酸钠改性纳米氢氧化镁性能研究
Phase State of Active Species of Highly Active Bi-component Hydrogenation Catalyst Composed of Study on performance of modified nano-sized magnesium hydroxide by SDS / polyacrylate sodium
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工业应用结果表明:DQ-4型高效催化剂活性、氢调性均较好,产品符合质量标准。
The industrial application demonstrates that the catalyst 's activity and hydrogen adjustment capability are eminent . The product manufactured with the catalyst meets the quality requirement .
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目前制备具有适宜酸性、多级孔道结构分子筛和高活性加氢组分是提高加氢裂化催化剂重油转化能力、活性和中间馏分油选择性的关键。
The key issue for improving heavy oil conversion ability , activity and middle distillate selectivity of catalysts is to develop the hydrocracking catalysts with suitable acidity , hierachical pore structure zeolites and higher hydrogenation activity components .
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乙醇型发酵法生物制氢中COD浓度变化对发酵厌氧活性污泥产氢系统的影响
Effects of COD on activated sludge anaerobic fermentation system for hydrogen production
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工业试验结果表明,NG催化剂活性高,氢调敏感性和共聚合性能良好;
NG catalyst has features of high activity , excellent hydrogen adjustability and superior co-polymerization performance .
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载Mo和Ni-Mo酚醛树脂基活性炭加氢催化转化羰基硫的研究
Hydrodesulfurization of carbonyl sulfide over the catalysts Mo or Ni-Mo supported on phenolic resin-based activated carbon
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添加不同浓度的信号分子做为诱导物,通过检测PHB含量、PHB合酶的活性以及产氢量综合分析群体感应与产氢的关系。
Adding different concentrations of signal molecules as inducers , by detection of PHB contents , PHB synthase activity and hydrogen production volume , comprehensive analysis of the relationship between the quorum sensing and hydrogen production .
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开发出适于扬子石油化工股份有限公司芳烃联合装置扩建后工况条件(高活性、低氢油比、高空速)的新型SKI40040型C8芳烃异构化催化剂。
C 8 aromatics isomerization catalyst , SKI 400 40 , was prepared for using in the isomerization unit in Yangzi Petrochemical Company after expansion revamping to fulfill the specified operating conditions , such as high activity of catalyst , low hydrogen / oil ratio and high space velocity .
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该复合储氢材料具有较高的活性和储氢量,在3.0MPa氢气压力和473K~553K之间的条件下,可以在1min之内完成饱和吸氢量的80%以上;
The composite possesses high reactivity and hydrogen storage capacity . Under the condition of 3.0 MPa hydrogen pressure and range of 473 K ~ 553 K , it can absorb more than 80 % of its full capacity at in less than 1 minute .