查询词典 potassium acid carbonate

Hydrogen peroxide as oxidizer and sodium carbonate as remover, arsenic, iron, nickel, calciumand lead are removed from copper-bearing mixture by neutralization and precipitation, then use the liquor thathave been filtrated react with the sodium carbonate to produce basic copper carbonae and make the quality of theproduct meet the export request.

采用氧化和中和沉淀方法，以H_2O_2作氧化剂、Na_2CO_3作脱杂剂脱除含铜混合液中的As、Fe、Ni、Ca、Pb等杂质，利用其与碳酸钠反应生产减式碳酸铜，并使产品质量达到出口要求。

The presence of Mg〓 will change the crystallization process of calcium carbonate and produce aragonite scale. The presence of Zn〓 can prevent the formation of the crystal nucleus of calcium carbonate and then prevent the scale.

当水的硬度、温度增加时，水的结垢速率增加；SO〓和NaCl含量增加，能使水的结垢速率略有增加；Mg〓能改变碳酸钙的结晶过程并产生文石状的水垢；Zn〓的参与能明显阻碍碳酸钙微晶核的生成，从而达到阻垢的目的。

Calcium carbonate crystal form was characterized by microscope and electron-scanning microscope,XRD and FTIR analysis was employed to investigate the morphology of calcium carbonate whiskers.

论文摘要以工业废弃磷石膏为原料制备碳酸钙晶须，利用显微镜和扫描电镜观察晶体形貌，晶须样品的晶型用X衍射和红外光谱进行了表征。

The calcium sulfate was dissolved and led to the rapid increase of calcium ion concentration in the solution. So the calcium sulfate is not suitable for being seed crystal of low-salt concentration. The quartz sand and calcium carbonate both can be used as seed crystals, but it is much faster and more complete to use calcium carbonate as seed crystal compared with using quartz sand.

当硫酸钙加入处理液中发生了硫酸钙溶解现象，导致溶液钙离子浓度迅速增加，故硫酸钙不适合做低浓度盐水的晶种，而石英砂和碳酸钙均能对钙离子的结晶起到效果，但碳酸钙做晶种对钙离子的结晶更快捷、更彻底，在条件允许的情况下，采用碳酸钙做晶种为宜。

The water-scaling rate will increase when the water hardness or temperature is increased. The water-scaling rate will increase slightly when the concentration of SO〓 or NaC1 is increased. The presence of Mg〓 will change the crystallization process of calcium carbonate and produce aragonite scale. The presence of Zn〓 can prevent the formation of the crystal nucleus of calcium carbonate and then prevent the scale.

当水的硬度、温度增加时，水的结垢速率增加；SO〓和NaCl含量增加，能使水的结垢速率略有增加；Mg〓能改变碳酸钙的结晶过程并产生文石状的水垢；Zn〓的参与能明显阻碍碳酸钙微晶核的生成，从而达到阻垢的目的。

The calcium carbonate crystal is needle short fiber-typed, its length is 2-8 micron and width is 0.3-1.5 micron, the ratio of length and diameter is 5-10, its content of vaterite calcium carbonate is larger than 90% with small particle on the surface of.

该碳酸钙晶体为针状短纤维形，其尺寸长为2-8微米，宽为0.3-1.5微米，长径比在5-10，球霰石型碳酸钙含量大于90％。该针状短纤维碳酸钙晶体表面附载有小颗粒。

If conditions allow, it is better to use calcium carbonate. Using calcium carbonate as seed crystal, adjusting pH values of solution by alkali, the process of the crystallization of calcium ion in reverse osmosis water under different pH values, seeds and their dosage, also different mixing speeds was examined.

用碳酸钙做晶种，通过加碱调节溶液pH值，考察了不同pH、不同晶种及其投加量、不同搅拌速度下钙离子的结晶过程，确定了pH值是影响钙离子结晶的主要因素，而搅拌速度、晶种及其投加量在一定程度上亦对钙离子结晶有影响。

The scale inhibition performance of PASP-based composite on both calcium carbonate and calcium sulfate was investigated under different conditions.The calcium carbonate crystal samples were characterized by SEM technique,and the results showed that the PASP-based composite cou...

利用扫描电子显微镜对碳酸钙晶型进行了分析，结果表明：聚天冬氨酸复配物可使碳酸钙晶体发生明显的扭曲现象，碳酸钙结晶更加细小分散。

Activation of heavy calcium carbonate with aluminates and other modification agents was studied, and the activation degree of calcium carbonate and the viscosity of its mixture with paraffin were characterized.

研究了铝酸酯等复合处理剂对重质碳酸钙的活化处理方法，对制得的活性重质碳酸钙的活化度及石蜡油/碳酸钙混合物的粘度行为进行了表征。

Generally, there are some anhydrites in carbonate reservoir, as H2S is also familiar in carbonate oil and gas reservoirs.

因为H2S也是碳酸盐油和煤气水库的，知交Abstract通常，那里是在碳酸盐水库的一些硬石膏。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。