查询词典 potassium carbonate

Experimental result makes clear, activator of alumina load potassium carbonate has very good catalysis active.

考察了K2CO3负载量、催化剂用量、反应时间、反应物摩尔配比对反应结果的影响。

METHODS 3-hydroxyestrogen reacted with dimethylsulfate in acetone in the presence of potassium carbonate.

方法以含3－酚羟基的雌激素类化合物为原料，丙酮为溶剂，在碳酸钾存在下与硫酸二甲醋反应。

The twenty-first century is the era of knowledge-based economy, the competitiveness of the enterprises with the survival and development, opportunities and challenges simultaneously, the red flag are determined to adopt a pragmatic attitude, the spirit of pioneering and innovative sense of potassium carbonate factory building to become a "first-class products, first-class management, first-class service,"the modern enterprise.

二十一世纪是知识经济的时代，企业的竞争与发展同存，机遇与挑战并举，红旗人决心以务实的态度，开拓的精神，创新的意识，把碳酸钾厂建设成为"一流产品、一流管理、一流服务"的现代化企业。

The twenty-first century is the era of knowledge-based economy, the competitiveness of the enterprises with the survival and development, opportunities and challenges simultaneously, the red flag person is determined to adopt a pragmatic attitude, the spirit of pioneering and innovative sense of potassium carbonate factory building to become a "first-class products, first-class management, first-class service "modern enterprise.

二十一世纪是知识经济的时代，企业的竞争与发展同存，机遇与挑战并举，红旗人决心以务实的态度，开拓的精神，创新的意识，把碳酸钾厂建设成为"一流产品、一流管理、一流服务"的现代化企业。

By spraying and coating the potassium carbonate solution onto the surface of glass spheres, the layering growth mechanism of granulating process was studied in fluidized bed.

通过在流化床中将碳酸钾溶液雾化后喷涂在处于流化状态的玻璃珠上，研究了流化床造粒过程的层式生长机理。

The properties of the synthetic zeolite,potassium carbonate and white carbon black all satisfy China national chemical industr...

合成沸石、白炭黑和碳酸钾的成分、结构及性能分析表明，3种产品均达到了国家或化工行业标准。

Mono-substituted acetate products were synthesized with high yields when weak base such as potassium carbonate was used as catalyst.

用弱碱如碳酸钾高效地合成了单取代乙酸酯产物。

The reaction of condensation-cyclization of the two prepared compounds at 100 ℃ in the presence of anhydrous potassium carbonate gave 1,4,7,10-tetrakis(p-toluenesulfonyl)-1,4,7,10-tetraazacyclododecane,with a yield of 71%.

在无水碳酸钾存在下，100℃加热使所得两种磺酰化产物缩合环化得到1，4，7，10-四-1，4，7，10-四氮杂环十二烷，产率71.0%。

Simultaneously uses the existing experimental condition, to the process of the electrolysis of watery potassium carbonate, we has done the further research of the power input, the initial temperature and the electrolysis time how to influence the system calorimetry coefficient.

根据现有的条件，本研究又对电解碳酸钾水溶液过程中的电解输入功率、电解起始温度和电解持续时间对系统k值的影响作了初步的探讨。

Several experiments were desighned to reveeal the reaction mechanism of phenolphthalein during its condensating with DCDPS in presence of potassium carbonate.

利用13C-NMR方法研究了弱碱K2CO3存在下酚酞成盐反应及其与活性双卤砜亲核缩聚反应过程中的结构特征。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。