松香可取代一定百分比的二元酸。
不同聚酰胺由混合二元酸和二元胺而合成。
Different polyamides were synthesized by mixing dibasic acids and diamines.
二元酸能形成酸式盐。
采用二甘醇作为加合物的分解剂，得到了二元酸。
Diacid has been got using diethylene glycol as decomposition agent of adduct.
介绍用甲醇醇解法把聚酯或共聚酯解聚成二元酸二甲酯和二元醇。
The polyester or copolyester can be converted into dimethyl terephthalate of binary acid and glycol by method of methanolysis.
目前，规模化工业生产十二碳二元酸及其衍生产品的装置已经建成投产。
At present, apparatuses for the production of dicarboxylic acids and its derivates have been setup and put into operation on an industrial scale.
用石油发酵法制备的十三碳二元胺和十一碳二元酸合成了尼龙1311。
PA 1311 was synthesized from petroleum fermentation undecanedioic acid and tridecanedioic amide.
十三碳二元酸生产中有机废水的COD值高达上万，且含有高浓度硫酸钠。
The COD of the tridecane dicarboxylic acid wastewater is high about ten thousands, and there is high concentration sodium sulfate in the wastewater.
通过实验选出催化活性高的催化剂，用于催化合成混合二元酸二甲酯（DBE）。
Then the catalysts of high activities were selected to be used in the preparation of mixed dibasic acid dimethyl esters(DBE).
有机二元酸对长石的活化强弱顺序依次为草酸、丙二酸、丁二酸、己二酸和癸二酸。
The active strong-to-weak sequence of organic dibasic acid on feldspar is oxalic acid, propanedioic acid, succinic acid, hexanedioic acid and sebacic acid.
测试结果表明，随着果实的成熟度增加，它的蜡含量和脂肪酸中的二元酸含量都有所递增。
The result showed that content of wax and quantity of diacid in fatty acid increased as the fruit, s maturation.
通过上述方法可将具有巨大分子结构的二酚单体与二元酸单体聚合，得到高耐热且透明的聚酯材料。
By adopting the method, the diphenol monomers with a macromolecular structure can be polymerized with the binary acid monomer to obtain the highly heat-resistant and transparent polyester material.
讨论了不同反应浓度以及单体摩尔比对酰亚胺二元酸的产率的影响和反应温度对酰亚胺化程度的影响。
Not only the influence of different reactant concentration and mole ratio of monomers to the reactive yield , but also the influence of reactive temperature to the imidization degree were discussed.
通过活性碳纤维（ACF）处理柱来分离混合二元酸（DBA）中有色物质，然后重结晶提纯分离戊二酸。
Activated carbon fiber(ACF) was used to purified glutaric acid from the mixture of binary acids(DBA), and by recrystallization the end production glutaric acid was purified.
采用一水合硫酸氢钠作为催化剂，催化己二酸生产副产物——混合二元酸与甲醇反应合成混合二元酸二甲酯。
Mixed dibasic acid dimethyl ester was synthesized from methanol and mixed dibasic acid, the byproduct of adipic acid, using sodium sulfate monohydrate as catalyst.
本发明涉及一种长链二元酸双酯的制备方法，尤其是一种用发酵法生产的长链二元酸制备长链二元酸双酯的方法。
The present invention relates to a method for preparing long-chain dibasic acid diester by using long-chain dibasic acid produced by fermentation process.
该系列溶解度数据的测定为溶剂法分离回收混合二元酸的工业化生产提供了基础数据，也为相关固液相平衡研究奠定了基础。
These datas lay a foundation for the separation and recovery of mixed dibasic acids by solvent method and related solid-liquid phase equilibrium research.
本发明涉及一种新型的二元酸酯的制备方法，包括采用固定 化脂肪酶，由二元脂肪酸和一元脂肪醇催化合成二元酸酯的步骤。
The invention relates to a method for preparing a novel diester, which comprises steps of synthesis using immobilization lipase catalyzed by biprotic fatty acid and monohydric fatty alcohol.
王佳新， 丁海燕， 何连芳，等。生长因子和乳化剂对热带假丝酵母产十二碳二元酸发酵的影响。中国酿造， 2011（5）： 87-89。
Wang JX, Ding HY, He LF, et al. Influence of growth factor and emulsifier on dodecanedioic acid fermentation by Candida tropicalis. China Brew, 2011(5): 87–89. (in Chinese).
王佳新， 丁海燕， 何连芳，等。生长因子和乳化剂对热带假丝酵母产十二碳二元酸发酵的影响。中国酿造， 2011（5）： 87-89。
Wang JX, Ding HY, He LF, et al. Influence of growth factor and emulsifier on dodecanedioic acid fermentation by Candida tropicalis. China Brew, 2011(5): 87–89. (in Chinese).
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