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The decomposition of ammonium jarosite bearing indium in NaOH medium were studied. The effects of NaOH addition, liquid-solid ratio, decomposition temperature and time on the decomposition ratio of ammonium jarosite were investigated, respectively, and the behavior of impurity elements, such as Zn, In, Cu, Cd, Pb, As, Sb, Sn and Ag in jarosite residues was also discussed.

摘 要：提出NaOH分解含铟铁矾渣新工艺，考察NaOH用量、液固比、温度和时间对铁矾渣分解率的影响，并讨论铁矾渣中杂质金属，如Zn、In、Cu、Cd、Pb、As、Sb、Sn和Ag等在NaOH分解过程中的行为。

The results show that the decomposition rate of ammonium jarosite can reach 98.03% under the following optimum conditions, which are m m=0.381 41, temperature 60 ℃, liquid-solid ratio 21, reaction time 2 h. During the alkaline decomposition, the impurity elements, such as Zn, In, Cu, Cd, Pb, Sb, Sn and Ag are left in the residue, while As is leached into the pregnant solution as AsO43 with leaching rate of 83.36%.

结果表明：在 m m=0.381 41、温度60 ℃、液固比21、反应时间2 h的最优条件下，铁矾渣的分解率达到98.03%，而原料中的杂质金属，如Sn、Sb、Zn、In、Cu、Cd、Pb和Ag等绝大部分留在分解渣中，As则以AsO43的形态大部分进入溶液，浸出率达到83.36%。

DSC-TGA thermal analysis and XRD characterization results demonstrate that Fe is precipitated as Fe3O4 during alkaline decomposition of jarosite. The contents of Fe, In and Zn in decomposition residue are 38.81%, 0.23% and 12.89%, respectively. After selective leaching of In and Zn with dilute HCl solution, the iron concentrates obtained from magnetic separation can be used as raw material for iron smelting.

DSC-TGA热分析和X射线衍射分析结果表明：在NaOH分解过程中，铁矾渣中的铁主要以Fe3O4形式沉淀入渣；分解渣中Fe、In和Zn的含量分别为38.81%、0.23%和12.89%；经稀盐酸选择性浸出铟和锌后，进一步磁选富集可作为炼铁原料。

For example, a floor joist may be subjected to loads that cause bending moment and shear as well as torsion.in these situations ,measurement of the inherent strength becomes analytically and experimentally complex,and in many situations cannot be done .

例如，地板龙骨可能受到荷载引起的弯矩和剪力以及torsion.in这种情况下，测量的固有实力和实验解析变得复杂，在许多情况下不能做。

"Our main objective is to help meet the training needs of the private banking industry in Singapore and the rest of the region," says Lim Juin In, chief operating officer.

新加坡财富管理学院首席运营官Lim Juin In表示："我们的主要目标，是协助满足新加坡及亚太地区其他国家私人银行业的培训需求。"

A word or morpheme that is used only in certain restricted contexts, as kempt in unkempt, but is otherwise obsolete.

旧词：只用于某种限定的上下文中的词或语素，如kempt in unkempt 。在别处已废弃不用

Objective To observe and compare the changes in corneal sensitivity after photorefractive keratectomy and laser in-situ keratomileusis for myopia.

目的 观察和分析准分子激光屈光性角膜切削术(photorefractive keratectomy， PRK)和准分子激光原位角膜磨镶术(laser in-situ keratomileusis，LASIK)治疗近视后角膜知觉的变化。

"The property of being snubnosed in Kronos, therefore, is essential to Socrates."The property of teaching Plato in Kronos

但其实他的要害在于，Plantinga在这里说的不是the property of P，而是the property of P-in-W。

In Londonderry, N.H., Irene Stanley, 68, was sitting in a rocking chair next to a wood stove to keep warm, her royal blue beta fish in its container nearby.

In Londonderry， N.H。， Irene Stanley， 68，坐在靠近木炉的摇椅上烤火，在旁边的鱼缸里有一只蓝色贵族鱼。

In the long-run when you play well and put in your hours, you will make more money.

In长期当你打得好，并在您的时间，你会赚更多的钱。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐