查询词典 acid process

The results showed that dimethyl sulphoxide and formamide were not rational choices for gel spinning process of high-relative viscosity nylon 6 when m- cresol, sulfonic acid and form.

结果表明：二甲基亚砜和甲酰胺不宜作高相对粘度尼龙6的冻胶纺丝溶剂，硫酸、甲酸和间甲酚比较适宜；提高温度有利于降低剪切速率，质量分数为12％的间甲酚溶液和质量分数为9％的甲酸溶液作溶剂，其尼龙6溶液分别在50～60℃和45℃以上有较好的可纺性；溶剂对尼龙6晶体结构的形成有着重要的影响。

The properties of purified terephthalic acid waste mud in the process of PTA sewage tank were introduced briefly.

简要介绍了精对苯二甲酸生产过程中，外排至污水厂活性污泥处理池中形成的污泥废料的性状。

On the basis of the comparison and analysis of RS theory, we provide an inductive learning knowledge acquisition method based RS, and the method is used in a practical Pure Terephthalic acid chemical process.

分析粗糙集理论用于知识获取的优缺点，提出基于EMRS的归纳学习知识获取算法，并在实际PTA化工生产过程中加以应用。

Guanylurea phosphate and boric acid in fire-retardant FRW were synergistic in influencing the pyrolysis process. Nine-four compounds in the pyrolysis products of Tilia amurensis lignin were identified.

FRW阻燃剂中GUP和硼酸对木质素热解过程的影响，并不是简单的加和作用，而表现出协同效应，并初步鉴定了些椴木质素裂解产物中94种化合物的结构。

The results indicated that with the increase of temperature and duration of treatment, the MDA content in rind increased significantly and the increase of soluble solids content, the decrease of titratable acid content in fruit and yellow stain of rind were inhibited, resulting in retarding the ripening process of fruits.

结果表明，与对照相比，温度升高或处理时间延长显著提高果皮MDA含量，抑制果实可溶性固形物含量的上升、可滴定酸的下降和果皮转黄，延缓果实的后熟过程。

Key words: wet-process phosphoric acid; determination of SO3 content; thermosensitive titrimetric method

论述热敏滴定法测定湿法磷酸反应料浆及磷酸中三氧化硫含量的原理，干扰情况及改进后的装置原理，优点。

An easy to use and simple denaturation process with trichloroacetic acid was conducted prior to tryptic digest so as to rel...

液相色谱/电喷雾质谱法为基因重组蛋白质药物的一级结构分析和质量控制提供了新途径。

The fluorescent tuning on and off can be achieved by the stimuli of acid, which will protonate the central nitrogen atom of triphenylamine unit to stop the PIET process.

通过加入酸将三苯胺中心氮原子进行质子化，切断其PIET过程，可实现荧光的淬灭与恢复的可逆性荧光调控。

An easy-to-use and simple denaturation process with trichloroacetic acid was conducted prior to tryptic digest so as to release the digest resistance from the protein structure.

液相色谱/电喷雾质谱法为基因重组蛋白质药物的一级结构分析和质量控制提供了新途径。

In this article, three representative oil and fat resourse (edible raw oil, unedible linseed oil and waste oil and fat) were used to study the fatty acid methyl ester preparation technology, and the products from different technologies were compared and analysed. For plant oil, ester exchange process was performed immediately after simple decolorating and alkali refining pretreatment.

对于植物油脂，采用简单的脱色、碱炼预处理后，直接进行酯交换的工艺；对于废油脂，由于其成分变质较严重，预处理也显得相对复杂，采用了先预酯化再酯交换的工艺和先皂化酸化后再酯化的两种工艺。

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。