二酸的

Based on the bioisosterism of malonate group with phosphate group, a series of barbiturate compounds and pyrazolidine-3, 5-dione compounds were designed and synthesized.

基于丙二酸是磷酸的生物电子等排体，我们设计了丙二酸的闭环结构的巴比妥酸及3，5-吡唑烷二酮类化合物。

Potassium ferricyanide and dithiothreitol were used to control redox potential from －100 mV to －450 mV in 3 L fermenter.

在3 L发酵罐上利用铁氰化钾和二硫苏糖醇调节发酵体系氧化还原电位值在－100～－450 mV，结果表明－350 mV为菌体生长和产丁二酸的最佳电位，丁二酸生产速率由0.75 g/提高到1.18 g/，产物丁二酸与副产物乙酸的质量浓度比由2.5提高到3.9。

In this paper, the effects of different catalyst combinations on the synthesis of α-chloro-dodecanoic acid were investigated, in which a series of acyl chlorides such as 4-toluene sulfonyl chloride, dodecanoyl chloride, chlorosulphonic acid , etc.

本文从烯酮式反应机理出发，以α-氯代十二酸的合成为模型，对酰氯化试剂(对甲苯磺酰氯、十二酰氯、氯磺酸等)和质子酸催化剂(如H型离子交换树脂、氯磺酸、对甲苯磺酸、醋酸等)进行组合和选择，并与文献报道的特殊添加剂乙酐比较，研究不同催化体系在酸催化合成α-氯代脂肪酸时的催化作用。

According to current domestic production situation and market demands, the scale of adipic acid production equipment is scheduled to 10 thousand tons per year.

建设规模及产品方案：根据我国己二酸的生产现状和市场需求，在国内建设己二酸生产装置，规模确定为1万吨/年为宜。

Mutation of the AZELAIC ACID INDUCED 1 (AZI1) gene, which is induced by azelaic acid, results in the specific loss of systemic immunity triggered by pathogen or azelaic acid and of the priming of SA induction in plants.

可感应壬二酸的壬二酸感应基因(AZI1)的突变，导致了由病原体或植物体中的壬二酸和SA感应起始所触发的特定性丢失。

A method to determine micro amount of meleic acid in fumaric acid is described, and the results confirmed by gas chromatography.

本文研究了反丁烯二酸试样中微量顺丁烯二酸的测定方法。

The optimum conditions were obtained as follows: the weight ratio of fatty acids and 85%acetic acid is 1:4, ozonolysis temperature is 20-25℃, manganese/copper acetate as catalyst, and the amount of catalyst is 0.15% of fatty acids, oxidation decomposition temperature and oxidation decomposition time are 90-95℃ and 4 hours respectively. the yields of azelaic acid and pelargonic acid are 57.4% and 51.6% respectively.

以菜油酸为原料、85%醋酸水溶液为溶剂，经臭氧化、氧化分解、重结晶等过程制备壬二酸和十三烷二酸的最佳反应条件为：m：m(85%醋酸)=1：4，臭氧化温度20-25℃；氧化分解温度80-85℃，催化剂醋酸锰/醋酸铜用量为原料菜油酸质量的0.12%，氧化分解时间3h，重结晶溶剂壬酸的用量为5倍质量的氧化分解产物时，十三烷二酸的收率为58.3%，壬二酸的收率为57.2%。

Factors were reviewed, and optimum conditions was obtained,these experiments provide effective data for industrial manufacture.On the condition of using fatty acids of cottonseed oil as raw material,85% acetic acid as solvent,this paper prepared azelaic acid and pelargonic acid by ozonolysis, oxidation decomposition , extracted by boiling water,active carbon absorpting etc.

以棉油酸为原料、85%醋酸水溶液为溶剂，经臭氧化、氧化分解、沸水萃取、活性炭吸附脱色等过程制备壬二酸的最佳反应条件为：m：m(85%醋酸)=1：4，臭氧化温度20-25℃；氧化分解温度90-95℃，催化剂醋酸锰/醋酸铜用量为原料棉油酸质量的0.15%，氧化分解4h，壬二酸收率为57.4%，壬酸收率为51.6%。

Synthesis and Crystal Structure of a Ternary Complex: [Ni2].8H2O GAO En-Jun YU Ying WANG Ke-Hua SNN Ya-Guang LI Hao-Yang (Laboratory of Coordination Chemistry, Shenyang Institute of Chemical Technology, Shenyang 110142, China) ABSTRACT A new ternary complex .8H2O (phen = 1,10-phenanthroline, Pmal 2－= phenethyl malonic acid) has been synthesized by the reaction of nickel acetate, phen and phenethyl malonic acid.

综合和三部组成的复合体的晶体结构： [Ni 2]。8H2O GAO En6月YU Ying WANG Ke华SNN Ya广李郝杨(实验室协调化学，化工技术沈阳学院，沈阳110142，中国)摘要A新的三部组成的复合体。8H2O (phen = 1，10二氮杂菲， Pmal 2-=苯乙基丙二酸的酸)由镍醋酸盐， phen和苯乙基丙二酸的酸的反应综合了。

The optimum conditions were obtained as follows : the weight ratio of fatty acids of rapeseed oil and 85%acetic acid is 1:4, ozonolysis temperature is 20-25

本文使用植物油脂肪酸为原料，原料丰富，价格低廉；使用含水溶剂不但提高了产品收率，而且降低了溶剂挥发性和溶剂的腐蚀性；使用活性炭吸附壬二酸粗品大大提高了壬二酸纯度，此方法简便易行，用此方法处理壬二酸粗品，壬二酸的纯度可达96.1%。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。