查询词典 sulfuric

TsOH-SBA-15 had higher catalytic activity than sulfuric acid with the same number of acid sites.

结果表明，该催化剂对冰乙酸和正丁醇的酯化反应具有较高的催化活性。

Study on continuous production of silica by hypergravity sulfuric acid precipitation method was conducted.

对超重力硫酸沉淀法生产白炭黑进行了连续化实验研究，通过改变硫酸的质量分数、旋转床转子的转速和硅酸钠的流量，探索出了这些工艺条件对白炭黑粉体性能的影响。

This archaic process of sulfuric acid making enjoys a history of more than 500 years up to now.

这种最老的制取硫酸的方法距今已有五百多年历史了。

Know to make two kind method of sulfuric acid, contact process and nitrification law.

了解制造硫酸的两种方法，接触法和硝化法。

Thermal analysis was used in the investigation of reaction process for sulfuric acid production from phosphogypsum.

采用热分析方法研究磷石膏制酸过程中CaSO4与焦炭的反应进程。

The effects of concentration of sulfuric acid, temperature and time on acid leaching process were studied, and the regularity of these affecting factors was analyzed.

研究了酸浸过程中硫酸浓度、浸取温度、时间对铁浸出率的影响，分析了各个影响因素的规律性。

The utilization ratio of sulfuric acid and the leaching rate of nickel were improved after adopting circular countercurrent leaching.

采用闭路循环浸出，提高了硫酸的利用率和镍的浸出率。

A new process of compound fertilizer production in one step is introduced in which urea-sulfuric acid decomposed phosphorus rock.

在脲硫酸复肥生产新工艺中，酸解剂配比、反应温度、磷矿粉细度、搅拌强度等工艺条件对磷矿分解率和气相氟逸出率均产生影响，其中酸解剂配比是最主要的影响因素。

Phosphate rock and sulfuric acid reaction, the reaction slurry to liquid-solid separation, dilute phosphoric acid to be wet.

磷矿粉与硫酸反应，反应料浆进行液固分离，得到湿法稀磷酸。

It is the most important solid-liquid reaction that sulfuric acid decomposes phosphate rock in phosphate fertilizer production. By contrast with conventional reaction of acid decomposing phosphate rock, the effects of ultrasonic power, reaction time, and temperature are discussed.

硫酸分解磷酸是磷肥工业中最重要的液固分解反应，本研究从磷矿酸解液—固反应着手，通过对比的方法，探讨常规的液—固反应体系施加超声波后，超声的声强、时间、温度对磷矿酸解的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。