查询词典 esterifying

The product of the esterifying is hydrolyzed by steam bubbling (30kg/h) at 95℃ for 50~60min.

在该条件下，可得酯化率大于93%，单酯含量大于89%的无色、无味产品，质量稳定。

The esterifying conditions of starch phosphate monoester of potato are investigated and analyzed in order to discuss the effects of esterification on granule diameter and gelatinization temperature of potato starch.

通过对磷酸单酯淀粉酯化条件的研究和分析，探讨了不同酯化条件对马铃薯淀粉磷酸单酯粒径和糊化温度的影响。

If a specially appionted solvent is used in esterifying reaction, APG to solvent will be 1 to 0.6-0.7. And then, the final yield is more than 70％,and its properties indicate that it is a better anion surfactant. Such can pave the new way for the application of APG.

若酯化反应选一合适的溶剂，则APG：溶剂为1∶0.6-0.7时，阴离子活性物含量可达70％以上，测试其性能，表明为比较优良的阴离子表面活性剂，这样就为APG的应用开辟了新途径。

The effects of temperature,time of reaction,amount of catalyst,time of esterifying,time of decompression step by step ,etc, on molecular weight of PLA were studied.

以L-乳酸单体为原料，用逐步减压缩聚法合成了相对高分子量的聚乳酸。

The results demonstrate that the suitable esterifying conditions mainly require the proportion of APG to C4H2O3 as 1 to 1.2-1.4,under the tempreture of 70-85℃,and 4-6 hours of reaction time.

结果表明：酯化条件为APG；顺酐为1∶1.2-1.4，反应温度为70-85 ℃，反应时间为4-6 h为宜；磺化反应条件以10％？

By adjusting the amount of esterifying agent, SP with DS 0.02~ 0.09 can be prepared easily while RE is about 60%~ 70%.

然后，用红外光谱、扫描电镜、X-射线衍射、差示扫描量热分析及淀粉-碘复合物吸收光谱分析对木薯淀粉磷酸酯的结构进行表征，并对产品糊的理化性质进行研究。

Starch stearate was synthesized from wheat starch, stearic acid as esterifying agent, and hydrochloric acid as catalyzer under dry condition.

以小麦淀粉为原料，硬脂酸为酯化剂，盐酸为催化剂，在干法条件下合成硬脂酸淀粉酯。

It was found that PA modified starch might be esterifying cross-linked starch, and that cross-linking degree of dipping method PA modified starch was lower than wet method PA modified starch.

在浸渍法改性中，得到最大取代度的反应参数为：植酸钠用量2％，pH 7，时间2hr，温度140℃～160℃。

In the step of esterification, dehydration of boric acid and then esterifying with phenol were carried out in order to increase conversion of esterification. Effect of reaction temperature, consumption of boric acid, kinds and consumption of dehydrolating agent on the yield of esterification was studied. The experimental results showed that high conversion of 98% of esterification was obtained.

本实验将酯化反应分解为脱水反应步骤和酯化反应步骤，以便提高酯化反应收率，同时，考察了反应温度、硼酸用量、带水剂种类及用量对酯化反应收率的影响，实验结果表明，该步反应条件简便易操作，反应转化率达98%。

Acetylated starches with high degree of substitution were synthesized from cornstarch with acetic anhydride as esterifying agent and methanesulphonic acid as catalyst.

以玉米淀粉为原料，醋酸酐为酯化剂，甲烷磺酸为催化剂，制备高取代度淀粉醋酸酯。

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。