The purpose of polymethylene polyphenyl polyamines purification system is to get rid of anilin and water.The stripping tower and drying tower are two main separation units in the system.

多胺精制系统的任务是脱除粗多胺中的苯胺和水,针对现有在的精制效果差、消耗高等问题,分别对影响汽提塔和干燥塔的因素进行了模拟分析,提出了相应的改进措施。

The role and application of hydrofinishing to lube oil processing were described. Having Compared with clay refining, the trend of development of lube oil hydrorefining technology was given.

论述了加氢补充精制在润滑加过程的作用及应用,对加氢补充精制与白土精制进行对比,提出润滑加氢技术的发展方向.

Polynionic celluloses were preparated by alkalify and etherify of refining cotton.The degree of replacement of the polynionic cellulosesis was high.The radicals of replacement were distributed evenly.

采用精制棉经过碱化、醚化得到高取度且取基均匀分布的聚阴离子纤维素产品。

Cuimiguo is a famous local cate in southern Sichuan.With long history and specialties, the native cate is made form high-quality sticky rice and matched with gingili.

源于川南古镇之年货，系浓厚乡土风情，承百年经典配方，精选优质糯米，配芝麻、酥麻等，经现精制而成。

Etodolac was synthesized with 7-ethyltryptophol and methyl 3-oxopentanoate as the starting materials.Highly pure etodolac was obtained by purifying the crude product with a mixing solvent.

以7-乙基色醇和3-氧戊酸甲酯为起始原料,以甲醇为溶剂,合成了依托度酸.采用混合溶剂对粗品进行精制,得到了高纯度的依托度酸.

The quality of diesel oil producing was advanced by isomery pour point depression technique applying in hydrogenation unit in Harbin Petroleum Company Branch of PetroChina.

介绍了中哈尔滨化公司柴加氢精制-临氢降凝装置采用异构降凝技术提高产品柴质量的生产情况。

According to the features of Guizhou's resource,the technology of industriaI glyc-erine by fermentation from Canna Edulis Ker starch and purification are studied in this article.

根据贵州省资源特点，采用以芭蕉芋淀粉为原料，经发酵等化过程制取了精制业甘，并对其化过程进行了研究。

This article introduces the process design of rectification separation of methylnaphthalene and acenaphthylene fraction from Wash Oil with twin furnaces and twin column.

介绍了洗通过双炉双塔分离精制生产甲基萘和苊馏分的设计。

By use of caustic washing electrofining method to decrease the acidity of straight run diesel oil,serious diesel oil emulsification problem can occure often.

采用碱洗电精制方法降低直馏柴酸度时,往往会产生严重的柴乳化现象。

The recovered hydrogenate has more impurity, so a new purification method was usedwhichsettl-ed the tail peak problem in finished Doxycycline Hyclate.

采用向盐酸多西环素精制母液中加5-磺基水杨酸和水的方法,从精制母液中回收出氢化物,并确定了最佳配比。

The mixture was refined by sodium sulfide and sodium hydroxide to afford an O,O-diethyl thiophosphoryl chloride at a purity of 99%.

该粗品通过精制的改进,采用硫化钠和氢氧化钠的混合物进行处理,得到纯度≥99%的O,O-二乙基硫磷酰氯。

Compared with alkali-washing electrofining method, no strong acid and strong base were used, no high electric field settling separation tank.

与碱洗电精制法相比，该法不使用强酸强碱，不需要高压电场沉降分离罐。

So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...

增加丙烷脱沥青的溶剂比,用加氢补充精制替白土精制等,此外,在含硫原生产基础时,对原也应适当选择。

The refined solvent oil with less than 0.1%aromatics wa s used in medicine Brufen production as conventional solvent.

药品布洛芬生产新中采用精制的橡胶业用溶剂(精制溶剂)作通用溶剂，要求其芳烃含量小于0.1%。

The invented large baked pancake uses refined wheat flour as basic material and shortener as main adjuvant.

本发明公开了一种风味大饼及其制作方法，该饼以精制面粉为基本原料，汤酥为主要配料。

Capsicum oleresin is a kind of natural hot sauce separated and refind from capsicin extracted from chlili.

辣椒精是从红辣椒果实中提取的辣椒，再经分离精制而得的一种具有天然辣味的调味品。