查询词典 anhydride

The heat and mass transfer in Phthalic Anhydride desublimation process on plate has been studied experimentally.

一、月U舀苯配是重要的基本有机化工原料之一，广泛应用于化工、轻工、医药、塑料等行业·2：。

Any of a group of chemical compounds formed by a reaction of phthalic anhydride with a phenol,from which certain synthetic dyes are derived.

酞一组化合物之一，由邻苯二甲酸酐和酚反应而成，某些合成染料是由此提取的

Selective oxidation of naphthalene to phthalic anhydride is quite an old but successful process and used in industry up to the present.

由萘选择性氧化制邻苯二甲酸酐是一个相当老和成熟的生产工艺，至今仍在应用，也正因为如此，对该反应所用催化剂及其物理化学性质和物态结构，特别是在反应状态下的各种特征反而研究得不很充分，或比较零散。

Phthalic anhydride is an important organic chemical material and it is mainly applied for such fields as plasticizer, alkyd, unsaturated polyester resin, dyestuff and medicine.

苯酐是一种重要的苯有机化工原料，主要应用于增塑剂、醇酸树酯、不饱和聚酯树脂、染料、医药等领域。

This technology replace the price higher phthalic anhydride by PTA waste residue as the raw material to produce unsaturated polyester resin, the cost reduction about 10%.

该技术用PTA废渣为原料代替价格较高的苯酐制备不饱和聚酯树脂，成本降低了10％左右。

According the development of company and the demand of markets, this company decides to introduce capital to build newly the phthalic anhydride production equipment with annual output of 500 thousand tons.

根据公司发展和市场需求，公司决定引进资金新建年产五万吨邻苯二甲酸酐生产装置。

A widely used durable synthetic resin derived from glycerol and phthalic anhydride.

木醇中一种主要的不饱和醇，用于制树脂、可塑剂和药品。

A widely used durable synthetic resin derived from glycerol and phthalic anhydride.

到20世纪，人造纤维织物和机械开关的应用，简化了帘幔的装置与使用。

For product column T202 top, except that very small amount of benzoic acid and phthalide were contained, the rest was benzene anhydride, the column bottom was heavy component, which can meet the separation requirement.

产品塔T202塔顶除含有极少量苯甲酸、苯酞外，其余均为苯酐，塔底为重组分，满足分离要求。

Gabriel reaction was adopted to synthesis 2-(0ctahydro-1-azocinyl)ethylamine, N-(β-Heptamethyleniminoethy1)phthalimide was prepared by treating Heptamethylenimine with N -(β-bromoethy1) phthalimide. N -(β-bromoethy1) phthalimide was easily prepared from phthalic anhydride in two steps.

我们采用Gabriel伯胺合成法制备2-环庚亚胺基乙胺，从邻苯二甲酸酐经过两步反应很容易地得到N-邻苯二甲酰亚胺，然后与环庚亚胺发生亲核取代反应，产物再水解制得伯胺2-环庚亚胺基乙胺。

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。