烧矿法

A two-step columbite method was utilized for preparation of PMNT solid solution with single-phase perovskite.

本工作采用二步合成法避免了烧录石相形成，获得了纯钙钛矿相的PMNT粉体。

It exerts important significance on sci-tech history of mining and smelting and historical culture research, since this mine is one of a few rare mines in China that are qualified to restore the technique scenes of "decrepitating method" mining and "cupellation method" smelting.

公园拥有诸多采矿遗址，其中黄岩坑古矿硐规模最大，保存最完整，古代文献记载最丰富详实，是国内稀有的有条件恢复"烧爆法"采矿、"灰吹法"冶炼工艺场景的矿山，对矿冶科技史和历史文化研究具有重要意义。

These results indicated that a well structured anatase TiO2 was obtained by impregnation method under 500℃. Flow rate, in the activity test, could be neglected for mass transfer effects. As a matter of fact, relative humidity played the most important role in this reaction. The highest removal efficiency was obtained while relative humidify of 56.8%. Water molecules are sources of ; however, excessive water molecules could inhibit reactions by competing activity sites with organic containments. In the regeneration test, photocatalyst could be reactivated through a running water vapor with UV light illumination process.

研究结果指出，以含浸法制备之触媒於500℃锻烧下，具有良好的锐钛矿晶体结构；另外在活性测试的部份，流量的增加，污染物之去除效果不受影响，所以本实验选择以200ml/min之流量可忽略质传影响；湿度扮演重要的角色，当RH=56.8％时去除效率最高，主要因水气是产生氢氧自由基的主要来源，但是过多之水气可能与有机物竞争触媒表面上的活性位置，因而抑制反应的进行；初使浓度对去除率之影响中得知，初使浓度的高低不会影响触媒对有机物的催化能力，实验使用之触媒量适合催化200~250ppm之有机物，可藉由增加触媒量提高对有机物之催化能力；此外再生的测试，触媒可经由连续曝水及紫外光的照射，使触媒恢复原有的活性，可再次利用。

ICP-AES determination of Nb and Ta in products from oredressing of spodumene was reported in this paper.

用碘化铵灼烧，氢氟酸-硫酸分解矿样，不经分离，电感耦合等离子体光谱法测定锂辉石选矿产品中铌和钽。

The traditional solid phase reaction of preparation has many disadvantages: it is very difficult to get the pure calcium-titanium mine phase even at the annealing temperature of 1000DEG C; the size of the material is very large and ununiform; the powder needs very high agglutinating temperature (1350DEG C) to get pyknotic ceramics.

固相反应法制备铌钪酸铅，在1000℃的较高的煅烧温度下也难于得到纯钙钛矿相的粉体，且颗粒尺寸大，尺寸分布不均匀，且这种粉体而要求高的烧结温度(1350℃)以获得致密的陶瓷。

It exerts important significance on sci-tech history of mining and smelting and historical culture research, since this mine is one of a few rare mines in China that are qualified to restore the technique scenes of "decrepitating method" mining and "cupellation method" smelting.

公园拥有诸多采矿遗址，其中黄岩坑古矿硐规模最大，保存最完整，古代文献记载最丰富详实，是国内稀有的有条件恢复&烧爆法&采矿、&灰吹法&冶炼工艺场景的矿山，对矿冶科技史和历史文化研究具有重要意义。

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。

An activating roasting process of Chinese diasporic bauxite was tested by muffle to lower the digestion temperature in Bayer process.

利用马弗炉对我国一水硬铝石矿进行了活化焙烧的实验研究，以降低拜耳法溶出的温度。

Bauxite based mullite was prepared with grade Ⅱ broken bauxite (3 mm) and broken coal gangue(3 mm) as starting material according to formula w(Al2O3)=68%~72% in bauxite based mullite grogs.

以Ⅱ等高铝矾土碎矿(≤3 mm)和煤矸石碎矿(≤3 mm)为原料，按照矾土基莫来石熟料w(Al2O3)=68%~72%的要求，将它们按一定比例混合配制成混合料，接着将混合料湿磨至0.044 mm以均化化学成分，经湿法挤泥成型、烘干后分别在1 550℃、1 600℃和1 700℃煅烧6 h，冷却后测定其显气孔率和体积密度以确定烧结温度。

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。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。