焙烧

Ti-Si composite materials are mixed at atomic scale, and Ti-O-Si bond appears in all of the samples with different TiO2 content; the mixed oxides are mainly existed in the form of amorphous pattern, anatase appears when the TiO2 content is more than 80%, but compared with the intension of pure TiO2, it has not integrate structure. The acetic content has great influence in the specific area and crystal structure of the mixed oxides. 20TiSi has good heat stability, still possesses 11m2/g after calcined at 1100℃; calcinations on the large scale of temperature does not cause the break of Ti-O-Si bond, TiO2 is well dispersed in 20TiSi calcined at 1100℃, and it still existed in the form of amorphous.

结果表明：制得的Ti-Si复合氧化物具有很高的比表面积，在TiO_2含量为10％时达到681.5m~2／g，Ti原子进入Si-O四面体结构中，形成Si-O-Ti键，复合氧化物的稳定性好，当TiO_2含量低于60 wt％时，以无定型形式存在；当含量为80％时，出现锐钛矿型TiO_2，但与纯TiO_2相比晶型不完整：醋酸对Ti-Si复合氧化物的比表面积、晶型都有很大的影响；TiO_2含量为20％的20TiSi经1100℃高温焙烧后，仍有较高的比表面积(11m~2／g)，稳定性好，在较宽的温度范围内焙烧，没有引起Ti-O-Si键的断裂，分散度高，没有出现晶型TiO_2。

Actual calcination temperatures of TS-1 powder and monolithic catalyst were chosen as 550℃and 600℃respectively.

实践中，对TS-1粉末催化剂的焙烧均采用550℃的温度，而整体式催化剂的焙烧温度则选择为600℃。

A new process for treatment of high-sulphur and high-arsenic gold concentrate was studied, with included the roasting at lower temperature with the addition of alkali fusion agent and the cyanidation leaching with the addition of active additive.

摘 要：研究富硫高砷金精矿在加入碱熔剂经低温焙烧预处理后，再加活性添加剂条件下的氰化工艺，结果表明，金的氰化浸出率从直接氰化或沸腾炉焙烧后的焙砂氰化的30%～50%提高到87%～93%，浸出速度也有很大提高。

Main research work and conclusions are as follows:(1) In the aspect of process technologies, production capacity, loading mode, system configuration and parameters of the baking process were determined. The temperature difference in the pits was shortened to only 28℃ by optimizing the flue-wall, which avoided the ununiformity of the product quality.

在消化国外先进技术的基础上，本文开发了一套新型阳极焙烧系统，主要研究内容与成果如下：(1)工艺技术方面，研究并确定了焙烧炉产能、装炉方式、系统配置和焙烧工艺参数。

We adopted a comparatively perfect technics, such as calcineing ore with Calcium, soaking through NH_4HCO_3, enriching the vanadium with 717 anion exchange resin and depositing vanadium with NH_4C1, to recover the vanadium from argillaceous vanadium ore. At this rate, those problems that high content of SiO_2 in the ore, agglomeration in calcination, low transformation rate of dissoluble vanadium and unavailable enrichment of mill run, can be raveled out.

针对粘土钒矿中SiO_2含量太高，焙烧时易结块，可溶性钒转化率低以及不能选矿富集等问题，本课题采用钙化焙烧法焙烧，碳酸氢铵浸出，717~#强碱性阴离子交换树脂富集，以及氯化铵沉钒等方法，提钒效果较为理想。

Synthesized all above, the heat and mass transfer of charge bed is discussed in detail. After choosing seriously the former study results in this field, a whole temperature range process model for firing iron ore pellets containing solid fuel is established as well as its software is edited. The main physical chemistry reaction process within pellets and the heat statement can be calculated exactly with the process as long as the physical and chemical parameters of raw material are obtained through basic experiments. After finding out the reason of"temperature hysteresis"and"heat inertia"of the experimental induration device, a new kind of experimental induration device is designed. The"temperature hysteresis"of hot gas flow in the new device is avoided.

综合以上对焙烧球团矿时球团矿内各种物理化学反应过程的分析与研究的结果，仔细地分析研究了球团矿料层中的传热质现象，认真筛选了前人对填充床的传热传质的研究结果，提出了全温度范围球团矿焙烧过程模型，并编制了相应的计算机软件，只要通过基础实验，获得原燃料的基本物性参数（如化学反应速度常数，矿粉、煤粉的粒度及此表面积以及球团矿的导热性等），利用这一软件就能准确地计算出焙烧球团矿时球团矿内各种物理化学反应过程和料层内的热工状态。

The main products are: aluminum industry anode baking furnace, cathode roaster, electrolytic aluminum melting furnace, Calciner low creep, low porosity series of products, metallurgical industry with high-power electric stove top products, large and medium-sized steel ladle series of products lining package .

主要产品有：铝工业阳极焙烧炉、阴极焙烧炉、电解熔铝炉、煅烧炉用低蠕变、低气孔系列制品、冶金工业大功率电炉用炉顶制品、大中型钢包用钢包衬系列制品。

Through the processes of grinding bastnaesite ore concentrate, mixing the ore powder with NaCO3 in the ratio of 1 to 0.1-0.4, roasting the mixture at 400-800 deg.c for 1-6 hr, elution of the roasted sand with hot water to obtain NaF, drying filtered drag after eluting NaF and mixing the dried drag with ammonium chloride, roasting the mixture at 300-600 deg.c for 1-3 hr, hot water soaking to obtain rare earth chloride solution, extraction with 20% kerosine solution of naphthenic acid, and hydrochloric acid counter extraction to obtain rare earth chloride product.

本发明涉及一种氯化铵法从氟碳铈精矿提取氯化稀土的方法，首先将氟碳铈原精矿磨细，并与NaCO 3 混合，其比例为原矿∶NaCO 3 ＝1∶0.1～0.4，混合均匀后在400℃～800℃焙烧1～6小时，焙砂用热水洗出NaF，洗出NaF的滤渣干燥后与氯化铵混合，于300℃～600℃焙烧1～3小时，再用热水浸取得到氯化稀土溶液，用20％的环烷酸煤油液萃取，再采用盐酸反萃得到氯化稀土产品。

By analysis on baking data of 300kA large-type prebaked cells,the deficiency existing in original baking start-up process was discovered,and then improvement measures were taken accordingly.

本文通过300kA大型预焙槽焙烧数据的分析，发现了原来的焙烧启动过程中存在的不足，采取了改进措施并得了好的效果。

Templating agent could not be sufficiently removed at temperature below 500℃, while temperature exceeding 600℃ might result in collapse of the framework. The conversion from Co(superscript 2+) to Co(superscript 2+) was a gradual time-consuming process. Calcination at 550℃ in a muffle furnace for 10 hours could remove the templating agent and bond water and give a satisfactory result.

焙烧温度和时间决定CoAPO-5分子筛最终的物化性能，焙烧温度低于500℃不能有效去除模板剂，而高于600℃将导致分子筛骨架的破坏，Co(上标 2+)向Co(上标 3+)转化是一个逐渐转化的过程，550℃下焙烧10h，能较好地去除模板剂和结合水及实现Co(上标 2+)的转化。

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。