浸酸

The paper studied the semi-industrial test of extracting Vanadium pentoxide by the pelletization-rotary kiln roasting-low acid leaching-ion exchange technology from the Vanadium-containing kaolin.

对含钒高岭土进行了制粒-回转窑焙烧-低酸浸出-离子交换提取五氧化二钒的半工业试验，试验结果表明，回转窑焙烧过程钒的转化率达到74%以上，全流程五氧化二钒回收率达到71.82%，产品质量达到国家标准GB3283-87要求。

At mealtime Boaz said to her,＂ Come here and have some food; dip your bread in the sauce.

到了吃饭的时候，波阿次对她说：＂你上前来吃饼，将你的饼浸在酸酒里。

Optimal pretreatment conditions of electroless nickel plating for magnesium were decided by many experiments. Phosphoric acid technology was used to instead of acid processing by chromium trioxide and ferric chloride, and excellent coating was obtained by using dipped zinc, cyanide copper, nickel as medium.

通过多次试验确定了镁及镁合金的前处理方案，以磷酸洗的方法代替传统的铬酐加三氯化铁酸洗浸蚀的前处理工艺，配置简单，操作方便，以浸锌层、氰化铜层和中性镍层作为化学镀中间层，得到了结合力良好的化学镀镍层，获得了镁合金表面处理的新突破。

Copper-bearing gold concentrates ; comprehensive recovery ; hydrometallurgy ; hot-pressure acid leaching ; extracting gold by cyanidation

铜金精矿；综合回收；湿法冶金；热压酸浸；氰化提金

The Iron content in the solution will be reduced toless than 0.01 g/L.- Copper-smelting smoke dust ; Copper sulfate ; Iron removing ; Technology

本研究采用通氧和过氧化氢两步氧化法除去炼铜烟灰酸浸液中的铁，具有除铁效率高，操作条件容易控制等优点。1 实验1 。1 实验仪器与药品3 0 %过氧化氢，1 7%浓氨

Polyaluminum silicate chloride coagulant was prepared in laboratory from kaolin and Na_(2)CO_(3) under the process of high-temperature roasting,washing and acid dipping.

以高岭土为原料，采用碱熔融水洗酸浸工艺制备聚硅酸铝絮凝剂，初步研究了该絮凝剂制备的工艺条件及pH对产品絮凝沉降性能的影响。

The performance and application of blocked diisocyanate as dipping adhesive activated agent for polyester tire cord and EP, EE conveyor fabric double dipping process are studied in this paper.

本文针对涤纶帘子布和EP、EE帆布的二浴浸胶工艺，对封闭异氰酸酯的性能及应用进行了研究。

It was considered that substances released from rice might be decomposed by microbe or reacted biotically and abiotically with the soil prior to interacting with the target weeds.

在化感水稻叶和根的浸提液中检测到的酚酸类化合物比根系分泌物中的多，说明水稻体内产生的物质与释放出的物质存在明显的差异。

Pearl ornaments should avoid exposure to acid-alkali substances and high temperature. they should also avoid direct exposure to perfume, hair crem and oil and salt, etc.when you wash your face and take a bath, you should take them off.

珍珠首饰应避免与酸碱性物质及高温接触，也应避免与香水、发乳及油盐等直接接触，洗脸、洗澡时应取下，珍珠沾有汗水和污物时，用中性洗涤液稍加浸洗，用水冲净。

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。

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