查询词典 dehydration

Esterification process of a reversible step wereresolved as two irreversible steps,then chemical decomposition of wood components weredecreased in liquid acid catalyst.Experiments showed that crosslinking catalysts took catalysisrole on two process in the esterification,(1)five cyclic anhydrides formed by dehydration ofpolycarboxylic acids,(2)esters occurred by substitution between five cyclic anhydrides andwood.

实验中的反应过程使一般的酯化一步可逆反应，分解为两步不可逆反应，减少了液相酸催化过程的木材组分化学降解；交联反应催化剂对于多元羧酸类化合物与木材组分的酯化反应具有两个过程的催化作用：(1)多元羧酸脱水形成五元环酸酐中间体；(2)木材与五元酸酐中间体亲核取代反应形成酯。

The solutions we provide include natural gas and biogas purification, natural gas dehydration, hydrogen purification for fuel cell and industrial applications, and specialized solutions for other gases. Xebec also offers compressed air treatment solutions.

我们为客户提供的解决方案包括：天然气和生物气净化、天然气脱水、氢气净化、压缩空气净化处理，应用于燃料电池以及工业应用以及其他气体的特殊解决方案。

The digested sludge passes a series of processes such as mechanical dehydration and anhydration to obtain the dewatered sludge which can be used as the high quality fertilizer or solid fuel.

消化后的污泥通过机械脱水、干化等一系列过程后获得干化污泥，可用作优质肥料或固体燃料。

Under natural environmental condition, the achenes of Arternisia sphaerocephala and Artemisia arenaria were treated with different electric intensity, to probe the variation of achene weight when the mucilaginous layer holds sand particles, the hydration and dehydration of the achenes, and the germination situation of mucilage-intact achenes and mucilage-free achenes.

用不同强度的电场处理沙生植物白沙蒿和沙蒿果实，在自然环境下研究电场作用后粘液物质将沙粒粘附于瘦果周围后瘦果重量的变化情况、果实水合与脱水情况、粘液果实及剔除粘液层的果实萌发情况。

Amination reaction was carried out at temperature of 90℃ to 150℃ for 2h to 10h and then ashless dispersant of polyisobutylene succinimide would be obtained after dehydration with the operations of vacuum distillation and filtration.

结果发现，实验在N_2保护下进行，BPO／PIB质量比为0.035，MA／PIB摩尔比为1.3，反应温度为150℃，反应时间为12h，搅拌速率为250rpm，引发剂过氧化苯甲酰以丁酮为溶剂分六次，时间间隔为30分钟，均量地加入反应器时，烃化反应物聚异丁烯的转化率最高。

As there exists azeotropic composition for high concentration ethanol/water mixture, the separation of ethanol/water based on distillation and ethanol dehydration consume a major part of energy in an ethanol production process.

具有较高乙醇浓度的乙醇/水混合物存在共沸组成，因此基于精馏的乙醇-水的分离及脱水在乙醇工业生产的能耗中占有很大的比例。

Through computer simulation of azeotropy rectification dehydration tower with benzene as entrainer, the optimal technical parameters were obtained as follows:①the output quantity of top tower was 69 kg／h, return benzene phasor as 58 kg／h and reflux ratio as 3, alcohol concentration in charge the higher the better, however, its maximum value influenced by water content at azeotropy point;②sensitivity analysis results indicated that the sensitivity of output quantity of top tower was the highest, alcohol concentration in charge the second and return benzene phasor and reflux ratio the lowest.

对以苯作为夹带剂的共沸精馏脱水塔进行了计算机模拟，得到了最佳工艺参数：①塔顶采出量为69 kg／h，返回苯相量为58 kg／h，回流比为3，进料乙醇浓度越高越好，但其最大值受共沸点水含量的影响。②敏感性分析的结果为塔顶采出量的灵敏度最大，进料乙醇浓度次之，而返回苯相量和回流比较小。

The dehydration technology of bischofite by butanol complexation distillation was studied by such methods as X-ray diffraction and elementary analysis.

摘 要：采用X射线衍射及元素分析方法研究了水氯镁石的丁醇络合蒸馏脱水工艺。

Producing anhydrous magnesium chloride by dehydration of bischofite was considered as one of the most advanced technology to utilize and develop the magnesium resource of the salt lakes in Qinghai.

中文摘要：由水氯镁石制备电解镁的原料-无水氯化镁，是盐湖镁资源综合开发利用的有效途径之一。

Magnesium chloride ; magnesium oxide ; anhydrous magnesium chloride ; magnesium chloride hexammoniate ; bischofite ; metal magnesium ; dehydration

氯化镁；氧化镁；无水氯化镁；六氨氯化镁；水氯镁石；金属镁；脱水

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。