High performance of zinc-ferrum redox flow battery with Ac^-/HAc buffer solution

A green low-cost redox flow battery using Zn/Znredox couple in HAc/NaAc medium and Fe/Feredox couple in HSOmedium was first proposed and investigated for potential stationary energy storage applications. The presence of HAc/NaAc in the negative electrolyte can keep the pH between 2.0 and 6.0even when a large amount of Hions move into negative electrolyte from positive electrolyte through ion exchange membrane. In the pH range of 2.0–6.0, the chemical reaction of Zn species with Hspecies is very insignificant; furthermore, the electroreduction of Hion on the negative electrode is significantly suppressed at this pH range. The zinc-ferrum redox flow battery（Zn/Fe RFB） operated within a voltage window of 0.5–2.0 V with a nearly 90% utilization ratio, and its energy efficiency is around 71.1% at room temperature. These results show that Zn/Fe RFB is a promising option as a stationary energy storage equipment.

Species distribution of polymeric aluminium ferrum——timed complexation colorimetric analysis method of Al-Fe-Ferron

The effects of the calorimetric buffer solutions were investigated while the two colorimetric reactions of AI-ferron complex and Fe-ferron complex occurred individually, and the effects of the testing wavelength and the pH of the solutions were also investigated. A timed complexatian colorimetric analysis method of Al-Fe-ferron in view of the total concentration of {AI + Fe} was then established to determine the species distribution of polymeric Al-Fe. The testing wavelength was recommended at 362 net and the testing pH value was 5. With a comparison of the ratios of n(Al)/n(Fe), the standard adsorption curves of the polymeric Al-Fe solutions were derived from the experimental results. Furthermore, the solutions' composition were carious in both the molar n(Al)/n(Fe) ratios, i.e. 0/0, 5/5, 9/1 and 0/10, and the concentrations associated with the total ( Al + Fe which ranged from 10(-5) to 10(-4) mol/L..

Thermal stability and sputtering resistance under irradiation of yttria dispersed ferrum films

Oxide dispersion strengthened （ODS） steels are considered as potential candidates for high temperature applications in fusion reactors be-cause of their excellent thermal creep behavior. In the present work, the double-target magnetron co-sputtering method was recommended to prepare yttria dispersed ferrum films. Vacuum annealing and ion irradiation were carried out to study the surface topography and structural features of the prepared yttria dispersed ferrum samples. Experiments proved that while the yttria doping ratio in the ferrum film increases, the recrystallization temperature of the film will be enhanced and the sputtering damage by Xenon ion irradiation will be lowered. The sput-tering resistance of the obtained films would be improved with the growing of grains under vacuum annealing.

Ferrum公司推出新型的F400系列封罐机

Ferrum公司作为全球领先的罐体灌装、封合设备的设计和制造者，产品广泛应用于食品、饮料行业。Ferrum公司凭借自己的理念，对封罐设备不断做出刨新，已成为该领域的领导者。

Effect of Ferrum and Molybdenum Nutrition on Root Nodule and Physiological Growth of Vicia villosa Roth in Seedling Stage

[Objective] The paper was to explore the effects of ferrum and molybdenum nutrition on root nodule and physiological growth of Vicia villosa in seedling stage. [Method] A local cultivar of Qujing city,Vicia villosa,was studied using soilless cultivation method,and the effects of ferrum,molybdenum nutrition on root nodule and physiological growth of V. villosa in seedling stage were explored by adding 0. 01 mmol/L sodium molybdate and 0. 2 mmol/L ferrous sulfate respectively or simultaneously in the Hoagland's nutrient solution with the removal of ferrum and molybdenum salt. [Result]Ferrum and molybdenum significantly increased the number and weight of root nodule; the effect of single molybdenum treatment was the best,and the number and weight of root nodule in single molybdenum treatment were nearly 100% and 150% higher than that of the control. After treated by ferrum and molybdenum nutrition,the stem length and biomass of V. villosa decreased at varying levels,while root length and root shoot ratio increased significantly; the decrease extent of stem length in ferrum treatment and composite treatment was greater than that in molybdenum treatment,and the increase extent of root length in molybdenum treatment was the greatest. Application of ferrum and molybdenum fertilizer significantly improved ferrum and molybdenum content of V. villosa plants,and their soluble protein and free amino acid content increased at varying levels; single application of ferrum led to the greatest increase,while phosphorus content decreased at varying levels.The soluble sugar content of V. villosa decreased significantly at 90 d post ferrum and molybdenum application; application of molybdenum fertilizer reduced the starch content while ferrum fertilizer increased the starch content of V. villosa. Moreover,application of ferrum and molybdenum fertilizer reduced the SOD activity and enhanced the POD activity of V. villosa. [Conclusion] The application of ferrum and molybdenum fertilizer promotes the growth of root nodule and V. villosa plant.

Kinetic Mechanism in the Process of Carbothermal Reduction of Ferrum Niobate

Ferrum niobate was synthesized by solid-phase sintering method in a vacuum carbon tube furnace at 1 300 ℃ for 180 min. The phase transformation of ferrum niobate carbothermal reduction process was studied by XRD. The reduction reactions of ferrum niobate in different temperature stages were determined by the TG-DSC curve. Meanwhile, according to the TG curve, the reaction kinetics parameters were calculated by A.W.Coats integration and the control steps in different temperature stages were ascertained. The results showed that the reduction of ferrum niobate starts at the temperature of 1 000 ℃, and the reduction process carries out in two steps according to sintering temperature.In a temperature range of 1 000-1 238 ℃(the first step), the main reduction products are Nb O2 and Fe; the kinetic equation of initial stage is [-ln(1-α)]4=kt, controlled by nucleation growth, and the apparent activation energy is 388 k J/mol; with the temperature increasing, the kinetic equation is α+(1-α)ln(1-α)=kt, which is the Valensi two-dimensional diffusion kinetic equation, and the apparent activation energy is 264.4 k J/mol. The main reaction in a range of 1 238-1 344 ℃(the second step) is the reduction of Nb O2 to Nb C, the kinetic equation is [(1-α)-1/3-1]2=kt, which is controlled by the three-dimensional diffusion, and the apparent activation energy is 482.7 k J/mol.

Ferrum公司使预浓缩锥与离心机一体化

Ferrum公司在离心机中发展了预浓缩锥的新结构。在离心机运行的过程中，能够一定程度地改善进料的条件。Ferrum公司在离心机内增加的预浓缩锥实质上是由圆锥形状的打孔的薄板组成。悬浮液在到达圆柱形转鼓的筛网之前，首先要经过这个预浓缩锥。

乐惠-Ferrum的超高速易拉罐包装线

近期，乐惠-Ferrum的超高速易拉罐包装线亮相2016 CBB展，它将助力啤酒饮料行业易拉罐包装的快速发展Ferrum百年来一直坚持只和世界一流灌装机制造商合作，从2016年5月乐惠和瑞士Ferrum公司正式开始合作，乐惠以卓著的产品性能和令人信服的业绩成为Ferrum信赖的合作伙伴。在刚刚结束的上海CBB展，乐惠与Ferrum公司联合推出为精酿啤酒定制的craftcan易拉罐组合机，将很快推出9万罐的超高速易拉罐包装线。

Mechanical and magnetic properties of copper dispersed ferrum films under heat treatment

The Cu-containing steels are widely used for nuclear pressure vessel materials because of their good performance under high pressure and high temperature. In this article, magnetron sputtering was used to prepare iron films with various Cu contents. The samples were annealed at temperature range of 300–500 °C, and the structural,mechanical, and magnetic properties were studied. The results show that both hardness and modulus change along with copper content and annealing temperature. The change in coercivity after annealing is similar to that of hardness. The crystal grain growth in matrix ferrum and Cu precipitation during annealing influences both the mechanical and magnetic properties.

用Cyanex 302萃取废三元正极材料浸出液中铁铜试验研究

研究了用Cyanex 302(主要成分为二(2,4,4-三甲基戊基)单硫代次磷酸)萃取分离废三元正极材料浸出液中的铁和铜,考察了H+浓度、萃取剂浓度、温度对Cyanex 302萃取分离性能的影响,确定了反萃取负载有机相中铁、铜的工艺条件,在此基础上设计了从废三元正极材料浸出液中萃取铁和铜的工艺流程。结果表明:最佳萃取条件为Cyanex 302浓度0.1 mol/L,H^(+)浓度0.1 mol/L,室温;在该条件下,铁、铜萃取率均大于99.9%,镍、钴、锰、锂萃取率均低于0.003%;铁的最佳反萃取剂为1 mol/L H_(2)SO_(4),铜的最佳反萃取剂为1.5 mol/L HNO_(3)。该工艺能有效萃取分离浸出液中的铜、铁。

猪血红素中微量元素含量的测定

缺铁性贫血是当今世界上普遍存在的营养缺乏性疾病之一。目前,常用来治疗缺铁性贫血的药物多为硫酸亚铁,但由于服用后胃肠道反应较大,病人很难坚持继续服药。现在,已问世了一种猪血红素离来作为缺铁性贫血的治疗药物,效果十分理想。本文用原子吸收分光光度法(AAS)和荧光分光光度法(FS)对口服原料药猪血红素中的锌、铜、铁、锰、镉、镍、铅、镁和硒的含量进行了测定,

铁和铜电极对电渗效果影响的对比试验研究

对铁和铜电极的电渗效果进行了室内试验研究,通过监测排水量、电极处电势损失、含水率等分析比较了两者对电渗效果的影响,结果表明,铁电极在电渗中的表现优于铜电极。铜作为电渗阳极时,通电4～6 h后其电流有一迅速下降过程,同时阳极电势损失大幅增加。还开展了不同阴阳极材料组合对电渗效果影响程度的试验研究,研究发现阳极材料对电渗效果影响很大,相比之下阴极材料的影响较弱。最后从电化学角度对试验结果作了较为合理的解释。本文首次在电渗过程中发现电化学钝化现象,并指出电化学钝化将大幅降低电渗的效率,实际工程中应避免其发生。

铁基助熔剂对皖北刘桥二矿煤的灰熔融特性影响研究

研究了铁基助熔剂对皖北刘桥二矿煤(AQ)灰熔融特征的影响,并对AQ煤灰在添加铁基助熔剂前后不同热处理温度下的矿物组成进行了XRD和红外光谱分析。结果表明,导致AQ煤灰熔点高的主要原因是1000℃以上形成的莫来石引起的;加入铁基助熔剂可以降低AQ煤灰的熔融温度;在高温下铁基助熔剂与煤灰中其他铝硅酸盐矿物发生反应,生成铁橄榄石和铁尖晶石等低温共熔化合物,从而使煤灰熔点明显下降。

氨基葡萄糖及羧甲基氨基葡萄糖与铁(Ⅱ)、锌(Ⅱ)、钴(Ⅱ)、铜(Ⅱ)配合物的光谱特征

本文研究了氨基葡萄糖及羧甲基氨基葡萄糖分别与铁 (Ⅱ )、锌 (Ⅱ )、钴 (Ⅱ )、铜 (Ⅱ )形成配合物的UV ,IR和1 H NMR光谱特征。配合物紫外的λmax发生了明显紫移 ;在IR谱中 ,配合物的面外振动峰 6 5 5cm- 1较未配位的氨基葡萄糖中的面外振动峰 6 70cm- 1 低 ,且在 990cm- 1 附近出现新的吸收峰 ;在1 H NMR谱中 ,配合物C3上羟基中的质子化学位移较未配位的均移向高场 ,氨基上质子的化学位移较未配位的也移向高场 ,其他碳上羟基中的质子化学位移值不变 ,从而初步证实了配合物中的氮 金属 (N M)键的形成。本文还研究了羧甲基氨基葡萄糖及其与铁 (Ⅱ )、钴 (Ⅱ )、铜 (Ⅱ )配合物的合成。其配合物的IR谱线较未配位的IR谱线并没增多 ,指出这种反常现象是糖环的刚性所至。它们的IR和UV光谱均证实了分子中不存在游离的羰基峰 ,并证实了它们分子中内盐的存在 ,配合物的IR谱中出现新的一组吸收峰 :4 33 1和 4 0 8 9cm- 1 (O—Fe) ,5 0 7 1和 4 95 0cm- 1 (O—Co) ,4 0 3 1和 389 0cm- 1 (O—Cu) ,证实了配合物中的氧 金属键 (O—M)的形成。

电感耦合等离子体发射光谱法测定硅铝铁合金中的多种元素

本文应用电感耦合等离子体发射光谱法(ICP AES)对硅铝铁合金的溶解和仪器参数进行了优化,确定了适宜的硅铝铁合金中多种元素的测定条件。测定结果的RSD在0.26%～5.1%之间,加标回收率在95.5%～102.7%之间,标准样品测定结果与推荐值接近。本文方法简便、准确、快速,有应用推广价值。

鄂尔多斯盆地北部纳岭沟铀矿床铁物相特征及其成矿意义

本文通过光学显微镜鉴定、铁物相分析、电子探针分析、黄铁矿S同位素分析等手段,开展了铁元素矿物相和化学相特征研究及其成矿意义探讨。研究表明,本区砂岩中铁物相主要包括碳酸铁(菱铁矿)、硫化铁(黄铁矿)、铁氧化物(赤铁矿、褐铁矿、磁铁矿)以及铁硅酸盐(黑云母、绿泥石、绿帘石),其中铁氧化物是直罗组砂岩中铁元素最主要的存在形式,硫化铁是矿化砂岩重要的指示矿物,上述两种铁物相均在矿化砂岩中含量最高;主要的铀矿物类型为铀石,与黄铁矿关系最为紧密,主要以"围绕"和"包含"的形式与黄铁矿相伴产出;黄铁矿的S同位素分布范围是-39.4‰～-8.5‰,表现出明显的富^(32)S、贫^(34)S的特点,指示了生物成因的特征;U/Th及δU的分布特征指示了二次还原砂岩经历了明显的氧化过程,矿化砂岩的还原性最强。铁物相的特征指示了纳岭沟铀矿床成矿过程的复杂性,既有早期的氧化改造,又有后期的二次还原改造,同时在成矿过程中还伴有硫酸盐还原菌等微生物的参与。黄铁矿作为铀成矿最敏感的指示矿物,是由无机还原反应叠加生物作用形成的。

静脉用蔗糖铁与右旋糖酐铁治疗维持性血液透析肾性贫血患者的多中心临床观察

目的:前瞻性对照研究比较两种静脉用铁剂治疗维持性血液透析(MHD)患者肾性贫血的疗效及不良反应。方法:全国十家医院血液透析中心共210例MHD患者入组,随机分成蔗糖铁组(n=105)和右旋糖酐铁组(n=105)。两组均静脉滴注铁剂100mg/次,每周两次,总量1000mg。观察期共8周,治疗期间每隔两周取静脉血检测血红蛋白(Hb)、红细胞压积(Hct)、铁蛋白(SF)、转铁蛋白饱和度(TSAT)等指标。结果:(1)两组患者治疗前的年龄、性别构成、体重、透析龄、治疗前的促红细胞生成素(EPO)剂量无明显差异;(2)治疗第四周后两组患者的Hb、Hct、SF及TSAT均明显升高,两组相比,无明显差异。(3)两组均未发生不良反应。结论:蔗糖铁与右旋糖酐铁静脉使用纠正肾性贫血的疗效相同,无明显不良反应。

过渡金属掺杂ZnO纳米光催化剂对四环素的光催化降解

利用水热合成法分别制备了Fe、Co、Ni掺杂及Fe—Co、Fe—Ni共掺杂的ZnO光催化剂。采用X射线衍射仪（XRD）、扫描电子显微镜（SEM）、紫外一可见漫反射吸收光谱（UV—Vis）等手段对催化剂进行了表征。以氙灯（250—800nm）为光源，盐酸四环素为降解对象，模拟测试样品在日光下光催化降解抗生素的活性。考察了过渡金属种类、过渡金属掺杂量及二元掺杂配比对ZnO样品光催化活性的影响。结果表明，制得的样品均为六方晶系纤锌矿结构的ZnO。单一元素掺杂时，Fe掺杂提高了ZnO光催化活性，而Co、Ni掺杂都抑制了ZnO光催化活性。共掺杂时，Fe—Co／ZnO及Fe—Ni／ZnO光催化活性优于单一掺杂的Fe／ZnO，其中3％Fe-1％Ni／ZnO样品的光催化活性最好，在氙灯光源下反应120min对盐酸四环素的降解率高达87．95％。

电感耦合等离子体原子发射光谱法测定硅铝铁合金中多种元素的优化研究

应用电感耦合等离子体原子发射光谱 (ICP AES)法 ,对硅铝铁合金中的Al,Fe ,Ca,Cr,Mn ,Ni,Si和Ti元素进行了测定。研究了ICP AES的操作条件和溶样方法 ,确定了适宜的实验条件 ,如对仪器参数和共存元素对信号的影响进行了研究。将实验条件优化后 ,使用该方法测定硅铝铁合金中多种元素 ,标准钢样测定结果与推荐值相符。对各种元素的检出限分别为Al(0 0 2 9μg·mL- 1 ) ,Fe(0 0 0 4 μg·mL- 1 ) ,Ca(0 0 0 75 μg·mL- 1 ) ,Cr(0 0 0 15 μg·mL- 1 ) ,Mn(0 0 0 0 9μg·mL- 1 ) ,Ni(0 0 0 2 7μg·mL- 1 ) ,Si(0 0 4 5 μg·mL- 1 )和Ti(0 0 0 3μg·mL- 1 )。对所测元素 ,测定结果的相对标准偏差 (n =6 )在 0 3%～ 1 8%之间 ,加入标准溶液的回收率在96 7%～ 10 2 9%范围。测定合金样品中高含量硅的结果与标准化学 (重量 )法的结果也相符。该方法的特点是数据可靠 ,简便可行和易于推广。