查询词典 Ammonia

Diaminoalkanes react with sym - tetrachloroethane to give crystaline 2,2'- Bis -( hexahydropy-rimidine) derivatives 1 - 5, after treatment with aqua ammonia.

利用均四氯乙烷及二氯甲烷的胺化反应，合成了联氢化嘧啶衍生物1～5，4a，8b-反-4，5，8a，9a-四氮杂全氢芴(6)和8b，8c-顺-3a，4a，7a，8a-四氮杂环戊并全氢芴(7)。

After treated with CuAz, the hydrogen from phenolic hydroxyl group in lignin was replaced by Cu from treated solution, being N-Cu-O complex, or two of the ammonia ligands of the tetrammine complex were replaced by copper-oxygen bonding from hydroxyl, being Cu-N-lignin complex.

在铜唑防腐剂处理后，木质素上酚羟基的H可以被Cu取代，形成&N-Cu-O&形式的络合物；或者处理液中四氨络合物中的2个氨配体被羟基取代，形成芳香族-铜络合物。

The autoclaved sol was synthesized by using titanyl sulfate (TiOSO4), ammonia as raw materials and peroxide (H2O2) as complexing agent, the AS sol was neutral or alkalescent .

以无机盐TiOSO4、氨水、H2O2为原料制备了含有针状锐钛矿晶粒的AS（autoclaved sol简写为AS）溶胶，AS溶胶呈中性或弱碱性。

The nitrides with high specific surface area from oxide precursor can be prepared through temperature-programmed reduction via topotactic reaction in ammonia or nitrogen under strict reduction conditions.

在基本不破坏氧化物前驱体晶体结构和严格的氮化条件下，氧化物前驱体通过程序升温氮化经由&局部规整反应&可以制备出高表面积的过渡金属氮化物。

In this paper sodium silicate manganese dioxide absolute ethyl alcohol triethanolamine trimeric sodium phosphate polysodium phosphate sodium hexametahposphatesodium hexametahposphate + ammonia water are chosen to be grinding aid to increase the efficiency of milling.

文章选用 Na2SiO3、 MnO2、无水乙醇、三乙醇胺、三聚磷酸钠、多聚磷酸钠、A+B、红土（含少量稀土元素，产自内蒙古）+三乙醇胺作为助磨剂对钢渣进行粉磨。

The characteristic of BMS silica mesostructure and the effect of various synthesis factor (including ammonia/silica molar ratio, composition concentration variation, surfactant alkyl chain length, auxiliary organic molecules such as trimethylbenzene, catalyst structure and properties, solvent and cosolvent volume and its polarity, aging and drying conditions and postsynthesis hydrothermal treatment and so on) on the resultant BMS silica structure and properties were assessed using a series of analytical techniques such as XRD, SEM, TEM,〓Si MAS NMR, TG-DTA and N〓 adsorption measurements.

结果显示BMS二氧化硅分子筛是由大量封装胶束的纳米二氧化硅颗粒（约为20-40nm）堆积形成的聚集体，其双介孔分布中较小的介孔起因于颗粒内部表面活性剂模板形成的介孔，我们称之为骨架介孔。它类似于我们在MCM-41中看到的介孔，可通过改变表面活性剂胶束的尺寸而在2.56-3.65nm的范围内进行调节。

Then the mixture of NO〓 and unoxidized NO as well as SO〓(1000-4000ppm) in the gaseous phase is simultaneously absorbed with aqueous ammonia to produce useful chemical products.

氧化吸收技术是燃煤烟气脱硫脱氮一体化工艺技术之一，其基本思想是利用烟气中较高浓度的O〓(4-7％)，在SO〓(1000-4000ppm)存在下，在150℃左右的烟气温度下，将NO(300-800ppm)部分催化氧化成NO〓，然后转化为有用的化工产品。

The reduction performance s of both unreduced ZA-5 and pre-reduced ZA-5H ammonia catalyst with large particle size as used in industry were measured by thermogravimetry (NET-ZSCH STA 449C).

采用热分析方法，研究了工业粒度ZA-5型氧化态和预还原态氨合成催化剂的还原性能，考察了还原温度、压力、空速、催化剂粒度、气体组成对还原速率和还原后催化剂活性的影响，提出了ZA-5催化剂的还原粒度效应及其工业还原过程中优化条件的基本原则。

This paper introduces the design of cooling water cycle with the early and cold water from original coal gas , impurity benzene and vaporing ammonia in Guangzhou steel Company It uses wastewater by treatment as adding water .

本文介绍广钢焦化厂原煤气初冷水，粗苯和蒸氨系统的冷却水循环系统的设计，将焦化废水净化处理后作为补充水，旁滤系统保证了循环水质能达到工艺要求。

The invention relates to a preparation method of vinylene carbonate, which comprises halogenated ethylene carbonate and dehydrohalogenation agent which are subject to contact reaction. The dehydrohalogenation agent is ammonia with a purity of not less than 99.9 percent.

一种碳酸亚乙烯酯的制备方法，该方法包括将一卤代碳酸乙烯酯与脱卤化氢剂进行接触反应，其中，所述脱卤化氢剂为纯度不低于99.9％的氨气。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。