偏苯三酸酐

评述了间二甲苯法制偏苯三酸酐（TMA）技术的最新进展。

The recent advances in technology about synthesis of trimellitic anhydride ( TMA ) from m-xylene were reviewed .

比较了生产偏苯三酸酐的3种方法：芳香醛水溶液空气氧化（MGC）法、硝酸氧化法和液相空气氧化法。

Three methods for trimellitic anhydride production including MGC , nitric aid oxidation , and liquid phase oxidation by air were compared .

由于偏苯三酸酐反应过程为大时间常数、纯滞后、反应温度很难控制，及生产工艺对空气流量给进的特殊要求，传统的PID控制难以满足工艺对生产质量的要求。

Because the reaction process of Trimellitic Anhydride has the characters of the large time constant , pure - lag , the difficulty control in reaction temperature , and the special constraint on air flow , the traditional PID control method does not meet the quality requirement .

2003年我国偏苯三酸酐的生产能力约为41kt/a，产量约为16kt。

In 2003 , The production capacity of trimellitic anhydride in China was about 41kt / a , with output of 16kt / a and total consumption about 13.5kt / a .

国内外偏苯三酸酐生产技术路线对比

Comparison of Production Methods of Trimellitic Anhydride at Home to Abroad

偏苯三酸酐反应器防爆膜破裂事故分析与措施

Analyses and Measures for the Break Accident of Rupture Disk in TMA Reactor

偏苯三酸酐的国内外市场分析

Market Analysis of Trimellitic Anhydride at Home and Aborad

偏苯三酸酐生产中的加热系统

Heating system in the production of trimellitic anhydride

偏苯三酸酐生产工艺进展及其应用

Application and technological development of producing trimellitic anhydride

偏苯三酸酐-环氧丙烷丁基醚合成超支化碱溶性聚酯

Extra Branched Alkali Soluble Polyesters Were Synthesized from 1,2,4-Trimellitic Anhydride , Epichlorohydrin and Propylene Oxide Tert-Butyl Ether

均苯四甲酸二酐产品中主要含有偏苯三酸酐、苯酐等副产。

Trimellitic anhydride and o-phthalic anhydride are the mainly by-products in the producing process of pyromellitic anhydride .

以1，2，4-偏苯三酸酐、二元醇和一元醇为反应单体，采用溶液法和熔融法合成了具有芳香型结构的超支化聚酯。

Aromatic hyperbranched polyesters ( HBP ) were synthesized by1,2,4-benzenetricarboxylic anhydride , diols and monohydric alcohols using solution polymerization and melting polymerization .

以脂肪油、邻苯二甲酸酐、偏苯三酸酐和三羟甲基丙烷为主要原料合成了水分散性醇酸树脂。

A water dispersive alkyds resin was prepared by using fatty oil , phthalic anhydride , trimellitic anhydride and trimethylolpropane as major materials .

2002年全球偏苯三酸酐的生产能力为20.3万t/a，我国的产能为1.7万t/a，全球的消费量约14万t。

The global production capacity of trimellitic anhydride was 203 kt / a in 2002 , including the capacity of China , 17 kt / a.

经过近十年的发展，国内偏苯三酸酐市场的现状是：生产能力过剩，竞争日趋激烈。

During the development about ten years , the situation of TMA market in our country is that the throughput is overmuch and competition is too keen .

目前世界偏苯三酸酐的总生产能力约为230万t/a，产量约为165万t/a，消费量约为160万t/a。

At present , the total capacity of trimellitic anhydride in the world is about 230,000t / a , with output of 165,000 t / a and total consumption about 160,000t / a.

偏苯三酸酐改性醇酸树脂：以亚麻油，苯酐，三羟甲基丙烷和偏苯三酸酐/顺酐为原料，采用酯交换法，合成出侧链具有羧基官能团的醇酸树脂聚合物。

Used linseed oil , phthalic anhydride , trimethylolpropane as the row materials , synthesized the resin , then trimellitic anhydride and maleic anhydride modified it to obtain carboxyl in the side chain .

介绍了液相空气氧化法的生产工艺流程，对该法生产过程中的介质危险、过程危险进行了剖析，提出了保障偏苯三酸酐安全生产的具体措施。

The process of air oxidation in liquid for trimellitic anhydride production was introduced , through analyzing its media hazard and process hazard . The specific measures to ensure safe production of trimellitic anhydride were put forward .

偏苯三酸酐的生产方法主要有偏三甲苯硝酸氧化法、偏三甲苯气相氧化法等，其应用范围很广，在国外的生产与销售均很成熟。

The main production methods for trimellitic anhydride include the oxidation by nitric acid and oxidation in gas phase with unsmy-trimethylbenzene as raw material . This product has very wide applications , and its production and selling at abroad have matured .

用V-Ti-P-O系表面涂层催化剂气相催化氧化偏三甲苯制偏苯三酸酐

Preparation of trimellitic anhydride by catalytic oxidation in vapor phase with v-ti-p-o coating catalyst