冶炼

Considering the production of hot metal with low Ni content in blast furnace with laterite recently in China,the technical characteristics and relevant problems of this process were discussed based on the laterite analysis,which can give some reference for making good use of laterite.

针对目前我国的红土矿高炉法冶炼低镍生铁，本文在分析红土矿特征基础上，讨论了高炉法冶炼低镍生铁的工艺特点和存在问题，为红土矿在我国的合理利用提供参考。

The total amount of heavy metal in ancient smelting residue was analyzed. The acute toxicity of lixivium from the waste residue was discussed.

对古冶炼废渣中重金属进行总量分析，针对古冶炼废渣长久堆放后废渣浸出液的急性毒性进行探讨。

Over the years, most commonly used by small businesses Tufa Secondary Lead Smelting, using the backward small reverberatory furnace, cupola melting process such as the lack of a corresponding dismantling, pre-processing, smelting equipment, plates, and pulp mixing, lead the general recovery of only 80%~ 85%, the low level of utilization.

最常用的土法再生铅冶炼小企业，用落后的小反射炉，冲天炉熔化过程，如相应的拆除，预加工，冶炼设备，板，纸浆混合缺乏，领导只有80％85％，使用率低的水平普遍复苏。

On 100t BOF-130t LF of Handan NO.3 steel works,with LF refining technology alone,for heavy desulfurization mission and long refining cyclic,the phenomenon of increasing silicium and carbon is much serious on refining low carbon steel specially the cold-rolling low carbon steel.The results impact the products'final performance and percent of pass.

单独采用LF精炼工艺，脱硫任务重，精炼周期长，冶炼低碳钢，特别是冶炼冷轧低碳钢时，LF炉在脱硫的同时，增硅增碳的现象较严重，影响了产品的最终性能和合格率。

The company has 5 branches: smeltery, sintering plant, generating electricity, steel-making and making oxygen.

公司组建于一九九七年六月，以炼钢、生铁冶炼为主，下辖：烧结、冶炼、发电、炼钢、制氧五个分厂。

Before metallic zinc can be recovered, by using either hydrometallurgical or pyrometallurgical techniques, sulphur in the concentrate must be removed.

在金属锌被提取之前，首先必须采用湿法冶炼或火法冶炼技术除去精矿中的硫。

The basic principle for electric smelting of titaniferous slag is introduced and the behaviors of titanium element in DC furnace are analyzed.

介绍了电炉冶炼钛渣的基本原理，分析了直流电炉冶炼钛渣时，钛元素的行为。

The steel yield of common steel is 118.0% of vanadic steel. Through gathering the operation data of job site, as the program language, VisualBasic6.0 is used to exploit the count software.

该计算软件根据原燃料价格、动力价格和销售价格的变化，可以及时计算出承钢普通矿冶炼和钒钛矿冶炼的最佳比例，为承钢获取最佳的经济效益创造有利的条件。

Cold smelting charge ratio was respectively 20%,25%,28%, by optimizing slag making and oxygen blowing process of dephosphorizing pretreatment period and decarburizing period,oxygen consumption rate increased from 20～30% to 40～50% than conventional process in dephosphorizing pretreatment period and slag charge was controlled at 8～15kg.t-1 in decarburizing pretreatment period.

在冷料比为20%、25%、28%条件下，通过优化脱磷、脱碳期供氧和造渣工艺，脱磷期耗氧比从传统工艺的20%～30%提高到30%～50%，脱碳期渣料加入量控制在8～15 kg.t-1.50炉工业试验结果表明，脱碳期一倒温度达到常规冶炼控制水平，一倒、控制水平明显好于常规冶炼工艺。

The paper presents the performance of smelting process of copper scraps by imported Kaldo furnace on the basis of 300 kt/a copper production in Guixi Copper Smelter,JCC as well as advantages and disadvantages of such Kaldo furnace type for treating scraps.

介绍江铜贵冶年产30万t铜冶炼项目引进卡尔多炉处理废杂铜冶炼工艺的情况，并介绍了卡尔多炉这种炉型处理废杂铜的优缺点。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失