顺酐 meaning in English
maleic anhydride
Examples
- - test method for color of maleic anhydride and phthalic anhydride in the molten state and after heating platinum - cobalt scale
熔融状态下和加热后顺酐和苯酐颜色的试验方法 - With phosphato - tungstic acid as catalyst and phosphoric acid as dehydrant , n - phenylmaleimide was prepared from aniline and maleic anhydride by two - step method . the yield was 88 . 7 % and the purity was 98 . 2 %
以顺酐和苯胺为原料,磷钨酸作催化剂,磷酸作脱水剂,采用两步法制得n -苯基马来酰亚胺,得到最佳反应工艺条件,产品收率为88 . 7 % ,纯度为98 . 2 % (质量分数) 。 - Maleic anhydride is a white needle - like , briquette or flaky crystalline with irritant odour and sour , inflammable and sublimating . it can be freely dissolved in water to form maleic acid . it has a specific density of 1 . 480 , a melting point of 52 . 85
顺酐（又称马来酸酐）为无色针状或片状结晶，有刺激性气味与酸味，易燃，升华，易溶于水生成顺丁烯二酸，相对密度为1 - This paper present the investigation of catalytic activities of strong acid cation exchange resin , perfluoro sulfonic acid resin and solid super acid to the esterification of maleic anhydride . the optimal technical condition were found using d001 - cc cation resin
研究了强酸性阳离子交换树脂等几个固体酸催化剂对顺酐乙酯化反应的催化活性.选择了用阳离子交换树脂为催化剂的最佳工艺条件 - In this paper some discussion of relative researchs about maleic anhydride synthesis and it ' s ramification are given . these researchs are of important significance for our chemical industry to get out of difficult position and have a long - term development
本文综述了顺酐合成工艺的发展概况及顺酐下游产品的开发与利用，对国内围绕顺酐合成及其衍生物的相关研究课题做了讨论，这些课题对我国有机化工行业的长远发展有着重要的意义。