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aqueous precipitation
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  液相沉淀
     Two samples of LiFePO4were synthesized with different adding methods for carbon. For the first method, carbon is mixed with FePO4 which was prepared by aqueous precipitation of FePO4 from FeSO4·7 H2O and NH4H2PO4 with hydrogen peroxide as the oxidizing agent, then LiFePO4 is synthesized by carbothermal reduction.
     以FeSO4·7H2O、NH4H2PO4和H2O2为初始原料,通过液相沉淀法制得前驱体FePO4,然后通过碳热还原制得LiFePO4。 我们采用两种加碳方式:a、先制得FePO4,然后加炭黑混合高温合成LiFePO4;
短句来源
     LiFePO_4/C powders were prepared by carbothermal reduction of Li_2CO_3 with FePO_4·H_2O,which was synthesized by aqueous precipitation from solution of FeSO_4·7H_2O and NH_4H_2PO_4 with H_2O_2 as the oxidizing agent.
     以FeSO4.7H2O,NH4H2PO4和H2O2为初始原料,通过液相沉淀制得前驱体FePO4.2H2O,然后通过碳热还原得到LiFePO4/C。
短句来源
     LiFePO_4 was prepared by carbothermal reduction of FePO_4 which was synthesized by aqueous precipitation from FeSO_4·7H_2O and NH_4H_2PO_4 and hydrogen peroxide as the oxidizing agents.
     以FeSO4.7H2O,NH4H2PO4和H2O2为初始原料,通过液相沉淀制得前驱体FePO4,然后通过碳热还原得到LiFePO4/C。
短句来源
     The precursor(FePO_4/C) was prepared by aqueous precipitation method. The LiFePO_4/C was synthesized by modified carbothermal method.
     通过液相沉淀法制得前驱体FePO4/C,然后通过改进的碳热还原法得到LiFePO4/C。
短句来源
     For the second method, carbon is mixed with FePO4 in liquid during the process of aqueous precipitation, and then LiFePO4 is synthesized with the same condition.
     b、先把炭黑分散在液相中,然后通过液相沉淀制得含碳的FePO4,再高温合成LiFePO4。
短句来源
  “aqueous precipitation”译为未确定词的双语例句
     Kinetics of Aqueous Precipitation Polymerization of Acrylonitrile Initiated by NaCIO_3-Na_2SO_3 System
     NaCIO_3-Na_2SO_5引发丙烯腈水相沉淀聚合动力学
短句来源
     Methods The precursor though aqueous precipitation methods were synthesized on the several different conditions like reaction pH(3.5~9) and temperature (23~80℃) .
     方法利用水合沉淀法分别在不同pH值(3.5~9),不同反应温度(23~80℃)的反应条件下得到粉末前体,经过1100℃高温煅烧,得到8组不同的粉末。 粉末经过X光衍射鉴定物相。
短句来源
     The wet chemical methods of microemulsion, aqueous precipitation, double jet and water/ethanol mixed solvents were applied to synthesize nanocrystalline of alkaline fluorides including BaF_2, CaF_2 and SrF_2. The object of this dissertation is to obtain nanocrystalline of alkaline fluorides with controllable particle size, study the thermo-stability, and provide fundamental data for the research of properties and application of nanocrystalline alkaline fluorides powders and bulk materials.
     本论文采用微乳液,水溶液直接沉淀,双注小区反应和醇/水混合溶剂沉淀四种湿化学方法研究了碱土金属氟化物BaF_2,CaF_2和SrF_2纳米粉体的制备科学和技术,目的在于获得粒径可控的碱土金属氟化物纳米粉体,并研究其晶粒尺寸热稳定性,为碱土金属氟化物纳米粉体和块材的性能和应用研究打好基础。
短句来源
     Synthesis of lithium iron phospho-olivines by aqueous precipitation and carbothermal reduction
     沉淀-碳热还原联合法制备橄榄石磷酸铁锂
短句来源
     Inflence of low and high pH value on synthesis of β-tricalciumphosphate powder through aqueous precipitation method—An X-ray diffraction study
     酸、碱不同条件对水合沉淀法形成的β-TCP陶瓷粉末的影响
短句来源
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  相似匹配句对
     Precipitation Process in Aqueous Solution
     水溶液中的沉淀过程
短句来源
     Development of Study on Precipitation Polymerization of Acrylonitrile in Aqueous Medium
     丙烯腈水相沉淀聚合研究进展
短句来源
     Aqueous adhesives
     水性胶粘剂
短句来源
     (b) precipitation of hydride;
     (b)在裂纹尖端形成氢化物并长大:k)主裂纹沿氢化物扩展;
短句来源
     precipitation and evaporation;
     降水与蒸发;
短句来源
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  aqueous precipitation
Phase pure hydroxyapatite (HA) and two silicate-substituted hydroxyapatites (0.8 and 1.5 wt% Si, or 2.6 and 4.9 wt% SiO4) were prepared by aqueous precipitation methods.
      
Phase pure hydroxyapatite (HA) and a 0.8 wt % silicon substituted hydroxyapatite (SiHA) were prepared by aqueous precipitation methods.
      
Carbonate hydroxyapatite (CHA) has been synthesized by an aqueous precipitation method and precipitates with two different levels of carbonate, processed as powders.
      
Synthesis of Y2Ba4(C2O4)7 · zH2O by aqueous precipitation
      
Aqueous precipitation and electrical properties of In2S3: characterization of the In2S3/polyaniline and In2S3/polypyrrole hetero
      
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The kinetics of aqueous precipitation polymerization of acrylonitrile initiated

以NaClO_3-Na_2SO_3为引发剂在酸性条件下研究了丙烯腈水相沉淀聚合动力学。发现由于引发剂活性很高,在短时间内即可达很高转化率,延长反应时间,转化率基本不变。提高单体浓度和氧化剂 NaClO_3、还原剂 Na_2SO_3或 H~+浓度均可使聚合速率和最大转化率增加。pH 减小或 Na_2SO_3浓度增加,使 H_2SO_3浓度增加,结果使产物分子量减小,成为控制分子量的主要因素。搅拌速度加快,反使转化率下降,说明增长反应不是扩散控制过程。实验还得出了动力学级数和活化能。

The continuous aqueous precipitation copolymerization of AN MA SSS initiated by KPS NaHSO 3 Fe 2+ with high monomer feed concentration was carried out in a 5L CSTR. The effects of monomer feed concentration, initiator concentration, mol ratio of reductant/oxidant, pH, mean resident time, polymerization temperature and agitation conditions on polymerization conversion, molecular weight and molecular weight distribution of the copolymers were studied. It has been found that under the condition...

The continuous aqueous precipitation copolymerization of AN MA SSS initiated by KPS NaHSO 3 Fe 2+ with high monomer feed concentration was carried out in a 5L CSTR. The effects of monomer feed concentration, initiator concentration, mol ratio of reductant/oxidant, pH, mean resident time, polymerization temperature and agitation conditions on polymerization conversion, molecular weight and molecular weight distribution of the copolymers were studied. It has been found that under the condition of the sufficient agitation power the polymerization conversion can be increased by increasing monomer feed concentration , and the high molecular weight resulted from the policy can be manipulated by an increase in the initiator concentration. The effect of agitation power on the conversion and MW & MWD is small. The conversion is also increased by raising the pH of the reaction mixture ranged within our investigated conditions from 2.8 to 3.3, but is almost unchanged when prolonging the mean resident time. Increasing polymerization temperature resulted in a small increase in conversion and a slight broadening in MWD.

以KPS-NaHSO3-Fe2+ 为氧化还原引发体系,在5 升CSTR中进行了高单体进料浓度(> 28% )的丙烯腈(AN)-丙烯酸甲酯(MA)-苯乙烯磺酸钠(SSS)三元水相沉淀共聚,系统考察了单体进料浓度、引发剂浓度及还氧比、pH值、聚合温度、平均停留时间和搅拌条件等工艺因素对聚合转化率和分子量及其分布的影响。结果表明,在充分搅拌混合的前提下提高单体进料浓度可提高转化率,由此引起的分子量增加可通过提高引发剂相对用量来调整;搅拌功率对转化率和分子量及其分布影响不大。

The continuous aqueous precipitation copolymerization of acrylonitrile(AN) methyl acrylate(MA) Sodium styrene sulfonate(SSS) initiated by KPS NaHSO 3 Fe 2+ redox system with high monomer feed concentration was carried out in a 5L CSTR. The effects of agitation condition, monomer feed concentration, initiator concentration, mol. ratio of reductant/oxidant, pH value, mean resident time and polymerization temperature on particle morphology were studied. It was observed that factors resulting...

The continuous aqueous precipitation copolymerization of acrylonitrile(AN) methyl acrylate(MA) Sodium styrene sulfonate(SSS) initiated by KPS NaHSO 3 Fe 2+ redox system with high monomer feed concentration was carried out in a 5L CSTR. The effects of agitation condition, monomer feed concentration, initiator concentration, mol. ratio of reductant/oxidant, pH value, mean resident time and polymerization temperature on particle morphology were studied. It was observed that factors resulting in higher polymerization rate and higher conversion, including increasing the monomer feed concentration, the initiator concentration, the pH and the polymerization temperature, are conducive to improving the particle morphology, among which monomer feed concentration and agitation strength are the most significant fators. Particle morphology can be also improved when propriately prolonging the mean resident time.

以KPS-NaHSO3-Fe2+ 为引发体系,在5 升CSTR 中进行了高单体进料浓度(> 28% )的丙烯腈(AN)-丙烯酸甲酯(MA)-苯乙烯磺酸钠(SSS)三元连续水相沉淀共聚,系统考察了搅拌条件、单体进料浓度、引发剂浓度及配比、pH 值、平均停留时间和聚合温度等工艺因素对聚合物颗粒形态的影响。结果表明,有利于提高聚合反应速率的因素,包括提高单体进料浓度、引发剂浓度、pH值和聚合温度等均有利于改善颗粒形态,其中搅拌强度和单体进料浓度影响最明显。适当延长平均停留时间也对颗粒形态稍有改善。

 
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