查询词典 acid process

Precipitation Barium sulphate production process is complicated, high cost and contains acid, alkali, salt.

沉淀硫酸钡生产工艺复杂，成本高，而且其中易含有工艺过程中必须使用的，没有去除彻底的，在摩擦材料中起负作用的酸、碱、盐。

As sulfuric acid , prepared from blowing furnace flue gas in the copper sulfide ore smelting, is easy to get reddish, blackish and greenish, reasons are found through analysis and detection, flame color reaction and hanging experiment in combination with the production process.

针对利用硫化铜矿冶炼吹炼炉烟气制得的硫酸易发红、发黑和发绿的情况，结合生产工艺，利用分析检测、焰色反应和挂片实验等手段，明确了原因。

Process:① the platinum wire dipped in concentrated hydrochloric acid to colorless colorless flame on the ignition;②sample in the colorless flame ignition, to observe the flame color (if test potassium cobalt glass through observation, because in most cases need to be used when the system of potassium sodium, potassium solution, therefore often contain sodium, and sodium yellow flame color reaction, a small amount of yellow and purple, respectively, can not come out).

3操作过程：①将铂丝蘸浓盐酸在无色火焰上灼烧至无色；②蘸取试样在无色火焰上灼烧，观察火焰颜色(若检验钾要透过钴玻璃观察，因为大多数情况下制钾时需要用到钠，因此钾离子溶液中常含有钠离子，而钠的焰色反应为黄色，黄色与少量的紫色无法分别出来)。

The process design, equipment level and commissioning of technical modification project for acid-making with copper converter gas from the smelter of Daye Nonfer-rous Metal Corporation are highlighted in this paper.

介绍了大冶有色金属公司冶炼厂铜转炉烟气制酸技改项目的工艺设计、装备水平，以及试车投产情况。

Influence of the parameters of HTT and enzyme hydrolysis process in the technology of aqueous enzymatic extraction of corn germ oil on the color, the value of acid and peroxide of corn germ oil was studied.

分析了热处理时缓冲液pH值、热处理时间及热处理温度对玉米油色值、酸值及过氧化物值影响。

Transesterification of Jatropha curcas oil was carried out in the presence of solid acid, the effects of types of catalysts and reaction conditions on the bio-diesel yields and the components in the process of the preparation of methyl esters were examined.

采用固体酸催化酯交换方法，研究了由麻疯树油制备脂肪酸甲酯过程中催化剂类型及工艺条件对生物柴油产率和产品组成的影响。

The phase equilibrium data of SBO-FAME-Methanol, SBO-FAEE-Ethanol and Glycerol-FAEE-Ethanol systems were measured. The results indicated that it involved two different stages: liquid-liquid-solid reaction stage and liquid-solid reaction stage. When the molar ratio of methanol to oil is 12:1 at 65℃, the turning point is at a 55% biodiesel yield. The liquid-liquid-solid reaction model was proposed based on the double-membranes theory. It indicated that the process is reaction and mass transfer controlled together at the first stage, and the second stage is reaction controlled. The predictions of the model are matched with the experimental results.In the end, the acid was extracted using methanol and ethanol from jatropha curcas l oil.

测定了生物柴油制备过程中的SBO-FAME-Methanol、SBO-FAEE-Ethanol、Glycerol-FAEE-Ethanol三组分相平衡数据，表明固体碱催化过程分为液-液-固和液-固两个反应阶段，在醇油摩尔比为12：1、65℃的初始反应条件下，转化率达到55%时，为第一阶段向第二阶段的转折点；基于双膜理论建立了固体碱催化制备生物柴油的非均相液-液-固反应模型，表明两个反应阶段分别为传质、反应共同控制和反应控制，模型计算值与实验值吻合较好。

The process of Acid Red 2GL is mainly introduced in this paper,and the conditions of both diazo- couple reaction and complexation reactions are also discussed.

本文主要论述了中性红2GL染料的合成工艺路线，并对重氮偶合反应和络合反应条件进行了讨论。

The process is simple, lacking pollution and erosion. The optimal conditions of SO 2- 4-TiO 2 solid superacid are dipping acid concentration at 0.50?

SO2 - 4 TiO2 固体超酸催化剂较为适宜的制备条件是：浸酸浓度为 0 5 0mol/L、焙烧温度为 5 0 0℃。

Polyaluminum silicate chloride coagulant was prepared in laboratory from kaolin and Na_(2)CO_(3) under the process of high-temperature roasting,washing and acid dipping.

以高岭土为原料，采用碱熔融水洗酸浸工艺制备聚硅酸铝絮凝剂，初步研究了该絮凝剂制备的工艺条件及pH对产品絮凝沉降性能的影响。

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。