酸洗

The type of acid and pickling process used depends on the variety of steel and its shape.

所使用的酸和酸洗工艺的类型取决于钢材品种及其形状。

Finally, two short-path distillation processes and one falling film evaporator are applied in the regeneration of waste lubricating oil. In the test, the diesel oil, gasoline and lubricating oil are distilled respectively, while the gelatinoid materials, asphaltene and carbon residue remain in the draft. The regenerative lubricating oil accords with the standards of base oil. And the recovery efficiency is up to 75 percent. The technology used in the test doesnt comprise processes like pickling and alkali neutralization, which would cause secondary pollution like acid draff and sulfur dioxide and so on. As a result of this, our technology is friendly to the environment.

最后，利用一级薄膜蒸发和两级短程蒸馏工艺对废润滑油进行了再生回收工业应用试验，将柴油、汽油等轻油以及润滑油馏分分别蒸馏出来，而大部分胶质、沥青质、碳垢存在于残渣中，试验得到的再生润滑油符合基础油的标准，回收率达到75％，达到废润滑油再生的目的；同时再生过程中没有酸洗、碱中和等工序，不产生酸渣、二氧化硫等二次污染，是一种清洁环保的废润滑油再生工艺。

The analysis of X—ray diffraction and scanning electronic microscope indicate that the arsenic powder obtained by this method is noncrystalline i.

本文提出了一种新方法，即在还原砷粉末的酸洗溶液中加入一种还原剂，防止形成β—锡酸，提高了砷粉末的除锡洗涤效果，获得的砷粉末纯度达99.2％。

Tantalate or niobate compound ; precipitate ; homogeneous ; sintered ; acidwash ; waterwash

钽或铌酸盐化合物；沉淀；均相；烧结；酸洗；水洗

This may indicate that a reprecipitation with phosphate happened during prolonging the extraction period.

在Pb及Cd高污染的土壤中(Soil B1)，当酸洗液浓度提高时Pb与Cd的抽出量反而有下降的趋势，显示在酸洗过程中重金属可能与磷产生再沉淀的现象。

And thereby settlement for embrittlement was suggested as follows: activation with acidic salt instead of pickling for degreased products.

从而提出了解决方法：产品除油后用酸盐活化替代酸洗。

Controls must be implemented and records kept on the type and concentration of the acid used, exposure time, acid bath temperature, and the type and amount of inhibitor.

必须及时并完整地记录和控制酸的种类及浓度、酸洗时间、温度及抑雾剂的类型和数量。

After oil is recovered from it, the bleaching clay is regenerated by acid activation, ignition, baking and acid washing methods.

先从废白土中回收油脂，然后分别采用酸活化法；灼烧法；焙烧-酸洗法工艺进行再生，并对再生工艺条件进行了研究，使再生白土达到最佳的脱色率。

To introduce the production process of spring steel wire with continuous line from surface treatment to drawing.

介绍表面处理、拉拔连续生产线生产弹簧钢丝的工艺，从酸洗、磷化涂层、生产场地、操作规程及废酸的处理等方面进行可行性分析，制定出生产工艺并进行试生产，生产出合格产品。

And they end up predominantly in the fine particle fraction in the fly ash duringcombustion.When biomass sample is pretreated by using chemical fractionation method,the content of volatile alkali in fuels decreases clearly and large amount of available C1 andS is also leached.So,during combustion the vaporization amount of alkali reduces and theformation of fine particle fraction in the fly ash is limited.

而当样品在经水洗分离和酸洗分离的化学处理后，燃料中易气化部分的碱金属元素含量大幅减少，大量水溶态或酸溶态的S，Cl等非金属&催化性&元素同时也被分离脱除，从而导致燃料样品燃烧时的碱金属气化量下降，且在成灰过程中向细微颗粒转化的途径也受到较大的抑制。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了