焙烧

Comparision national technolgical index of sulfating roaster with international ones,make some suggestions of innovating old roaster in Huludao zinc smelter for increasing enterprise economic profit.

通过比较国内与国外酸化焙烧炉各项技术指标差异，提出葫芦岛锌厂酸化焙烧炉优化改进意见，达到提高企业经济效益目的。

The methods of extracting and refining tellurium presently were mainly soda roasting,autoclaving in general basic solution,sulfating roasting,oxidative leaching in acid solution, solvent extraction ,emulsion liquid membrane,microbial method,electrorefining,vacuum distillation and zone melting etc.

目前分离提纯碲的方法主要有苏打粉焙烧法、碱性高压浸出法、硫酸化焙烧法、氧化酸浸法、萃取法、液膜法、微生物法、电解精炼法、真空蒸馏法、区熔精炼法等，其中电解精炼法得到的碲的纯度达到99.99%，真空蒸馏碲的纯度达到99.999%，区熔精炼碲的纯度可达99.999995%，本文综述了以上分离提纯碲的方法。

The paper studied the semi-industrial test of extracting Vanadium pentoxide by the pelletization-rotary kiln roasting-low acid leaching-ion exchange technology from the Vanadium-containing kaolin.

对含钒高岭土进行了制粒-回转窑焙烧-低酸浸出-离子交换提取五氧化二钒的半工业试验，试验结果表明，回转窑焙烧过程钒的转化率达到74%以上，全流程五氧化二钒回收率达到71。

The paper studied the semi-industrial test of extracting Vanadium pentoxide by the pelletization-rotary kiln roasting-low acid leaching-ion exchange technology from the Vanadium-containing kaolin.

对含钒高岭土进行了制粒-回转窑焙烧-低酸浸出-离子交换提取五氧化二钒的半工业试验，试验结果表明，回转窑焙烧过程钒的转化率达到74%以上，全流程五氧化二钒回收率达到71.82%，产品质量达到国家标准GB3283-87要求。

Production 200mm ~ 600mm, 400 400 mm, 500 500 mm of ordinary and high-density graphite electrode, using domestic technology of the sophisticated production of 3500 tons extrusion press; production 800mm ~ 1200mm above the carbon electrode, the use of domestic advanced horizontal high-frequency, amplitude of vibration of hydraulic molding machine production; calcination using low energy consumption, temperature, gas-balanced ring-type baking furnace; dipping into the cold out of hot billet; graphitization process color 16000KVA transformers, high current, low voltage, constant power; finished electrodes used comb knife domestic advanced way of processing, deviations small, with closely.

生产Φ 200mm ～Φ 600mm 、400×400㎜、500×500㎜普通和高密度石墨电极，采用国内技术成熟的 3500吨挤压机生产；生产Φ 800mm ～Φ 1200mm以上的炭素电极，采用国内先进的卧式高频、调幅液压振动成型机生产；焙烧采用能耗低、温度均衡的燃气式环式焙烧炉；浸渍坯热进冷出；石墨化工艺彩 16000KVA 变压器，大电流、低电压、恒功率；成品电极采用国内先进的梳刀方式进行加工，偏差小、配合紧密。

Rail company's existing six red, four iron yellow, two black iron, an iron green, a total of 13 iron oxide pigment production line, under the holding company of Hangzhou Huayuan Germany, race, equity participation, companies such as Toda sambong an annual output of iron oxide paint 110,000 tons, including blending, roasting, ultra-fine deep processing production lines, annual output reached 10000 tons, the product varieties have iron oxide red, iron yellow, iron oxide black, iron orange, iron brown, green and ultra-fine iron, calcination deep-processing products, such as more than 50, more than 90% of export products, customers across five continents over 40 countries and regions.

公司现有六条铁红、四条铁黄、二条铁黑、一条铁绿，共十三条氧化铁颜料生产线，下属控股公司华源杭德、赛诺康、参股公司户田三峰等，年产氧化铁颜料11万吨，其中拼混、焙烧、超细深加工产品生产线，年产量达 10000余吨，产品品种有氧化铁红、铁黄、铁黑、铁橙、铁棕、铁绿以及超细、焙烧等深加工系列产品五十多个，产品90%以上外销，客户遍及五大洲四十多个国家和地区。

It was observed that the reduction behavior of catalysts was dependent on the calcination temperature of their precursors, and the higher ability of hydrogen uptakes has been obtained in the p.

对原位溶胶-凝胶法制备的NiO-MoO3/SiO2-TiO2超细镍催化剂前体进行一组温度的焙烧及预处理，得到各温度条件下焙烧对该催化剂性能影响的数据。

The mainly conclusions in our research are as flowing: tungsten trioxide powders with 100 nm primary particle are obtained by spray drying,calcination and wet milling process, and an average size of quadric particle composed of agglomerated particles is 0.64 μm; tungtsen powders with 39 nm grain size and 60 -100 nm primary particle are produced directly from previous tungsten trioxide using one step reduction in hydrogen at 700℃, and an average size of quadric particle of tungsten powder is 2.91 μm; tungsten trioxide and copper tungstate compound powders with 100 nm - 200 nm primary particle are produced using ammonia metatungsten and copper nitrate as raw materials by spray drying,calcination and wet milling process;the compound powders are transformed completely into tungsten and copper compound powders by reduction in hydrogen at 700℃,in which tungsten grain size is 59 nm and copper grain size is 51 nm; primary particle size of compound powders is 80 - 120 nm,and an average size of agglomerated quadric particle is 1.86 μm; tungsten nitride powders with 35 nm grain size are prepared from tungsten trioxide powders by nitrogen treatment thoroughly in pure ammonia at 650℃, and an average size of agglomerated quadric particle is 0.64 μm in normal temperature.

研究结果表明：采用喷雾干燥—焙烧—球磨工艺可以制备出粒度约为100nm的WO_3粉体，它们在团聚后形成的二次颗粒平均粒度为0.64μm；采用一步直接氢还原方法可在700℃下从上述WO_3粉体制备出晶粒尺寸为39nm的、一次颗粒粒度为60-100nm的W粉体，其二次颗粒的平均粒度为2.91μm；以偏钨酸铵、硝酸铜为原料，采用喷雾干燥—焙烧—球磨工艺可制备出一次粒度为100-200nm的WO_3和CuWO_4混合粉体；采用氢还原工艺可在700℃下将这种粉体完全转变为W、Cu复合粉体，其中W的平均晶粒粒尺寸为59nm，Cu的平均晶粒尺寸为51nm；复合粉体的一次颗粒尺寸为80-120nm，在常温下团聚后形成的二次平均粒度为1.86μm；采用纯氨氮化工艺可以在650℃下由WO_3粉体制得WN，其晶粒尺度为35nm，在常温下团聚后的二次平均粒度为6.4μm。

The results showed that the adsorption capacity of the adsorbent reaches greatest with 30%carrying acid in adsorent,stoving temperature 105℃,sintering temperature 240℃ and sintering time 4h.

实验结果表明，当吸附剂的载酸量为30%，烘干温度为105℃，焙烧温度为240℃，焙烧时间4h条件下，吸附剂的吸附能力最大。

For reducing the fault ratio of shaft ore-roasting furnace, based on the analysis of the fault mechanism and combination of case-based reasoning and variables prediction, an intelligent fault prediction approach is proposed for the shaft furnace roasting process.

为降低竖望炉焙烧过程的故障发生率，基于故障机理的分析，将过程参量预报与案例推理技术相集成，提出了竖炉焙烧过程的智能故障预报方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。