查询词典 acid process

On the basis of analyzing data about stearic acid triethanolamine ester quaternary's preparation process and methods of analysis and identification, this article summarized synthetic conditions for this quaternary ammonium salt, this synthetic condition composed by synthesis of esters and quaternary ammoniation.

在对有关硬脂酸三乙醇胺酯季铵盐的制备工艺、分析鉴定方法的资料分析的基础上，综述了由硬脂酸制备该季铵盐的工艺条件，该工艺条件由酯胺的合成和季铵化2步构成。

Waste minimization in ammonolysis process of O,O-dimethylphosphorochloridothioate;2. An Investigation on the Micelle-Catalytic Hydrolysis and Ammonolysis of Carboxylic Acid Esters;3. The final product is generated by ammonolysis of the compound under high pressure.

以4-溴-1，8-萘酐为原料，用2，4-二甲基苯胺在醋酸中与之反应得到N-2′，4′-二甲基苯基-4-溴-1，8-萘酰亚胺，然后将NDNA在高压下用氨水进行氨解得到最终产品。

In the thesis a different anciently modeling method called multidimensional insertion modeling is used for the key parameters modeling in the process of the nitric acid production.

本文在对硝酸的生产过程中的主要参数进行建模的过程中，采用了不同以往的建模方法——多维插值建模。

The running principle and flow of the platform are illustrated by the example of Fe and sulfuric acid chemistry action. The system can animatedly displays chemical experiment process with expansibility, reliability characteristics.

结果表明系统具有易扩充、较好的可靠性、且能动态反映虚拟实验过程，提供了在现有网络基础下的分布式实现三维虚拟实验的一种新方案。

The antiglare film with above formula prepared by wet roller coat process, had excellent antiglare effect, high hardness, well adhesion and flexibility, fine water and acid resistance. The transmittance, haze and glossiness of the film were 92.3%, 10.69% and 62.4%, respectively.

选用上述配方，采用湿法辊涂工艺制备的防眩光涂膜材料具有优良的防眩光效果、高硬度、良好的附着力和柔韧性，以及良好的耐水性和耐酸性，其透光率为92.3%、雾度为10.69%、光泽度为62.4%。

Aquatint:It is an etching process on copper or steel by means of nitric acid.

水彩色调：用硝酸在钢片或铜片上作腐蚀的蚀刻法。

Hydride generation atomic absorption spectrometry, phosphate rock, wet-process phosphoric acid, trace arsenic, trace mercury, determination

氢化物发生-原子吸收光谱法，磷矿石，湿法磷酸，微量砷，微量汞，测定

In whole test process, to compared with control group, hepatic hepcidin gene expression of test group on different phases had obviously differences with retinoic acid was administered. On early phase of test group , relative gene expression contents of hepcidin were gradually fall and the lowest level was on 8th、9th、10th day, then the hepcidin level gradually was ascendent. The curve was like a cavate parabola.

在实验周期内，模型组与对照组比较，肝脏铁调素基因表达在维甲酸灌胃的不同时间，存在明显差异：早期5、6、7天铁调素基因相对表达量逐渐下降，在第8、9、10天达到较低值，随后有回升，呈现凹陷的抛物线变化趋势；而对照组基本处于水平的轻微波动变化。

The experimental results show that, by the process, 10 kg barium carbonate with 0.1 L hydrochloric acid (HCl 27%) as catalyst is added in 1 m3 copper electrolyte, 70% Bi can be removed from the electrolyte, and the Bi content in filter residue is more than 4%.

实验结果表明，采用碳酸钡脱铋新工艺， 1 m3铜电解液加入10 kg碳酸钡，用0.1 L盐酸(HCl 27%)作催化剂， Bi的脱除率可达70%，脱铋渣含Bi量大于4%。

GUP decomposed to guanidine polyphosphate GPP(at about 180℃), then to ammonium polyphosphate APP (at about 285℃), and in turn to polyphosphoric acid PPA (at about 385℃). The pyrolysis process of basswood was changed by the treatment of FRW or its components. It was discovered that BZ lose weight at quite lower temperature (165℃) than UZ did, and this may attribute to the catalytic effect of B on the pyrolysis of basswood to form char.

FRW阻燃剂及其组分均改变了木材的热解途径，其中，观察到BZ在较低的温度下（约165℃）即发生明显的失重，说明硼酸的阻燃机理除了传统理论认为的物理覆盖作用以外尚存在化学催化作；GUP 处理使紫椴木材的最大失重速率温度从375℃降低到314℃，同时失重率也显著降低，而成炭率升高；FZ的失重率低于其他处理材。

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％。