查询词典 sulfuric

Production of sulfuric acid, superphosphate is the necessary material compound, on the market at present more intense.

硫酸、过磷酸钙是生产复合肥的必备原料，市场上目前比较紧俏。

Is a taiwan-funded enterprises, which covers an area of 120 mu, has an annual output of 30,000 tons of ammonia,60,000 tons of one of the 40,000 tons of sulfuric acid production superphosphate and each one.

老河口金佳磷化企业有限公司是一家台资企业，占地面积120亩，拥有年产3万吨磷酸一氨、6万吨过磷酸钙和4万吨硫酸生产线各一条。

The sulfuric acid leaching process of tailings by using microwave was studied in this paper.

通过尾矿砂微波加热硫酸溶解新方法的实验，研究了硫酸浓度、液固比及反应时间等因素对尾矿砂酸蚀率的影响。

Thermodynamic analysis results show that tellurium can be leached by sulfuric acid leaching method from lead-rich tellurium slag.

并通过硫酸浸出高铅碲渣中碲的条件实验验证了热力学分析的结果。

Unstable when heated in the air quickly oxidized iron tetroxide, dissolved in hydrochloric acid, sulfuric acid generated ferrous salt.

不稳定，在空气中加热时迅速被氧化成四氧化三铁，溶于盐酸、稀硫酸生成亚铁盐。

The pI of these components gradually decreased f rom pH 4.0 according to electrophoresis mobility from higher to lower on PAGE. The molecular weights were in the range of 22～34 ku. 6.5 and 7 w ere glycoproteins proved by staining with the shiff reagent and thymol/sulfuric acid. The fibrinolytic activity of 7 was highest as determined usi ng chromzym UK and chromzym PL as specific substrates.

这些组分的等电点按照它们在聚丙烯酰胺凝胶电泳图谱上的顺序从4.0开始依次降低；SDS-PAGE证明，除3、4外，其余组分均只含一种多肽链，分子质量在22～34ku之间；用shiff试剂和酚-硫酸染色，显示1、2、6.5和7是糖蛋白，其中7的糖含量最高；以BAEE、Chromozym UK和Chromozym PL为底物测定，7的纤溶酶活性最高。

The mass transter can be enhanced ,when we introduce sulfuric acid and cuprous oxide into this system.The model is formed to describe the transference of the martial between the four phases: gas-liquid-liquid-gas, which can explain some problems. We analyze the dead of the catalyst, and make a conclusion that the surface of the catalyst is covered with some compounds such as bluestone, which lessen the activity points of the catalyst and debase the activity.

在SO_4~(2-)／ZrO_2-La_2O_3催化的反应系统中加入稀硫酸和氧化亚铜促进了异丁烯和一氧化碳的传质、使反应得以快速，高选择性的进行，异丁烯的转化率达95％以上，特戊酸的收率达47％；讨论了g-l-l-s传质过程；对催化剂作了失活分析，催化剂失活的原因是因为反应后的催化剂表面覆盖了一层硫酸盐，使催化剂的活性中心数减少，活性降低。

Under the conditions 0f microwave heating of I h, sulfuric acid concentration 8.0 mol/L and liquid/solid ratio 5.0 mL/g, most of the minerals in tailings can be dissolved except tremolite.

微波加热条件下，尾矿砂在硫酸浓度8mol/L、液固比5.0mL/g条件下无需搅拌，反应1h后，除透闪石没有完合适溶解外，绝大部分的矿物被溶解。

The influences of reaction temperature and sulfuric acid concentraction on trichloroethylene conversion and chloroacetic acid recovery have been investigated.

研究了三氯乙烯水解法生产氯乙酸的工艺，并在两种不同的实验方案中考察了反应温度、硫酸浓度对三氯乙烯转化率和氯乙酸收率的影响并确定了适宜的工艺参数，可作为工业化生产研究的基础。

Compared to DNPH, reactivity was reduced for all carbonyl compounds investigated but could be enhanced significantly by using the strong Lewis acid boron trifluoride hydrate instead of sulfuric acid as catalyst in the same concentration.

比起化妆，羰基化合物被全部反应性降低，但可以提高调查显强刘易斯用硼酸氟化水合物代替硫酸作为催化剂，在同一浓度。

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％。