查询词典 phosphoric acid

Several synthesis of phosphoric acid monoester was introduced,and their strong suit and defect were compared.

介绍了磷酸单酯的各种合成工艺路线，并比较了它们的优缺点，提出了聚磷酸法是合成高纯度磷酸单酯的最佳路线。

Is the production of phosphoric acid and phosphate products mainly phosphorus chemicals joint-stock enterprises.

四川什邡有限公司是以生产磷酸及磷酸盐系列产品为主的磷化工股份制生产企业。

This paper was based on the technology problem that wet-process phosphoric acid was used as material to produce sodium tripolyphosphate.

本文以国内现行的用湿法磷酸生产三聚磷酸钠的工艺技术不完善的问题为基础，系统地分析了整个过程的基本原理，并根据其中的问题，提出新的方法，进行新工艺的研究。

At last,in allusion to the existing problems,research direction and development suggestions for kiln-process phosphoric acid were proposed.

针对窑法磷酸工艺存在的问题，提出了窑法磷酸的研究方向和发展建议。

In this paper, the latest progress in the research of chiral phosphoric acid catalysts for relevant asymmetric reactions is reviewed.

本文主要综述了手性磷酸催化剂应用于亚胺相关反应的研究进展。

It is a new production method to produce high purity and high concentration phosphoric acid by directly using medium and low grade phosphorite.

窑法磷酸工艺是近年中国自行开发的新工艺，是一种直接利用中低品位磷矿生产高纯度、高浓度磷酸的新的生产方法。

A new technology to produce phosphoric acid from low-grade phosphorite and its advantages are described, also the kinetics of decomposition and crystallization are briefly presented.

摘 要］研究利用低品位磷矿生产磷酸的新流程，分析这一流程的若干特点，探讨流程中的酸解动力学和结晶动力学的一些基础问题。

The first process is failed, which is for manufacture of monopotassium phosphate and sodium chlorate from potassium chloride, phosphoric acid and sodium hydroxide.

以氯化钾、磷酸和氢氧化钠为原料联产磷酸二氢钾和氯酸钠的工艺路线还存在一些问题。

Each nucleotide by the phosphoric acid, the ribose and the basic group constitutes.

每个核苷酸又由磷酸、核糖和碱基构成。

The display exhibits the molecular structure of the capacity for heredity existing in the nucleus. It is composed of chain-trend ribose and molecule of phosphoric acid root, and basic pairs of molecules linked between the double chains.

本展品所展示的是存在于细胞核内具有遗传特性的分子结构模型，主要由组成链走向的核糖和磷酸根分子以及双链之间互连的碱基分子组成。

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。