二酸

According to the experimental data, the solubilities of succinic acid in above mentioned five solvents increase with increasing temperature and they are of g...

结果表明λh方程模型和NRTL方程模型均能很好地关联丁二酸在五种有机溶剂中的溶解度数据。

COD removal for succinic acid degradation was at the range of 54.4～98.3％ for different catalysts in 30 min.

催化剂在30 min内对丁二酸降解的COD去除率为54.4～98.3％。

The invention relates to a method for manufacturing polyesters, in particular, to using a lithium titanyl oxalate as the catalyst for such reaction to provide fast reactions with excellent color properties for the resulting polyester.

本发明涉及一种制备聚酯的方法，尤其涉及采用钛氧基乙二酸锂作为此类反应的催化剂以加快反应，并使所得聚酯具有优良的色泽性能。

The improved process produces a polyester of improved color versus other titanyl oxalate catalysts and a novel polyester without the presence of antimony.

此改进的方法制备出一种与采用其它钛氧基乙二酸盐催化剂的方法相比具有改进的色泽的聚酯和一种不含锑的新型聚酯。

The present invention provides an improved method of producing polyester by the polycondensation of polyester forming reactants wherein the improvement comprises utilizing, as the polycondensation catalyst, lithium titanyl oxalate.

本发明提供了一种由制备聚酯用反应物的缩聚反应制备聚酯的改进方法，其中的改进包括使用钛氧基乙二酸锂作为缩聚反应催化剂。

This paper investigates that the different composition of the headspace gas and polluted sediment slurries can affect the ratios of degradation on benzoic acid, toluic acid and phthalic acid isomers. We found that a sediment slurry which has been polluted can develop a stronger microbial degradation.

此篇文章主要是探讨不同上层气体之组成和被污染过之底泥可影响苯甲酸、甲基苯甲酸异构物及苯二酸异构物被分解的速率，我们发现被污染过之底泥可发展出较强之微生物降解力。

With high purity in 8 h when the mole ratio of tungstenic acid : acidic inorganic ligand : cyclohexene:hy...

当磷酸用量为2.5 mmol时，己二酸产率和纯度均较高。

Oil and polyol firstly hydrolyze, and then react with maleic anhydride to give semi ester, the residual maleic anhydride hydrolyzing to give maleic acid, finally are adducted with DCPD. The result of experiment shows that the synthesized resin is of perfect air drying performance and improved flexibility and anti-greening because of the use of oil, meetin...

试验结果表明，油与多元醇在210～220℃下先醇解，然后与顺酐反应形成半酯，剩余顺酐水解成顺丁烯二酸，然后与DCPD加成，合成的树脂具有优良的空干性；同时油的使用极大地提高了涂膜的柔韧性和抗绿化性，得到的树脂性能上可满足涂料用不饱和聚酯树脂的要求。

At last,in order to lighten the electrophoretic particles,0.2 g of the succinic acid modified SiO_2 particles were dispersed at 90 ℃ in 50 mL xylene solution dissolving 0.1 g polyethene,cooled and kept for 12 h,and then the particles were encapsuled by PE by means of centrifugal sedimentation at(10 000) r/min.

最后，为降低电泳颗粒密度，将0.2 g经丁二酸改性的S iO2颗粒，于90℃时加入已溶解了0.1 g 聚乙烯的50 mL二甲苯中，冷却静置12 h后，以10 000 r/m in的速度离心，使PE沉积包覆于电泳颗粒表面。

On the other hand, Pb~ coordination polymers with 1,4-nda and 2,6-nda exhibit the distinct 3-D 5-connected network and 3-fold interpenetrated diamond framework, revealing the isomeric effect of such tectons.

另外萘二酸的同分异构效应对晶体结构的影响可以在两个由1，4-nda和2，6-nda构筑的pb~化合物中看出(5和6)，它们表现出截然不同的5-连接三维结构和三重互穿金刚石拓扑结构。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。