查询词典 distillation

Synthesis of Butyle Acylate with acrylic acid and butyl alcohol at the catalysis of ethand by heteropoly acid in reduced pressure distillation were described in this paper.

由于丙烯酸正丁酯沸点较高，在常压下蒸馏易发生自身聚合反应而影响产率，所以采用减压蒸馏以降低其沸点。

In addition, theoretical system of the simulation and design the catalytic distillation process were esta...

在直径为25mm的小试塔中进行了实验，获得了丰富的实验数据和满意的实验结果。

Factors, such as functional additive for internal combustion engine, blending temperature, distillation range of base oil and the complex ratio of antifoaming agent, affect the foaming performance are highlighted.

报道不同种类抗泡剂在不同润滑油中的泡沫特性，重点介绍了内燃机油功能添加剂、油品调合温度、基础油馏分组成、抗泡剂复合比例等对油品泡沫特性的影响。

The invention provides an anhydrous hydrogen fluoride production process; reaction raw materials fluorite powder and sulfate are mixed by an external mixer and enter into a converter with jacket; hot air with the temperature of 350 DEG C to 600 DEG C is fed in the jacket; the fluorite powder and the sulfate have chemical reaction and produce hydrogen fluoride; the produced hydrogen fluoride enters into a scrubber from a furnace header to be washed; the washed hydrogen fluoride enters into an intermediate tank from a condenser, and then receives distillation and degasification to prepare the finished product anhydrous hydrogen fluoride; solid residue is emitted from a furnace tail.

本发明提供一种无水氟化氢生产工艺，反应原料萤石粉及硫酸经外混器混合后进入带有夹套的转炉，向夹套内通入350～600℃的热风，萤石粉和硫酸在发生化学反应生成氟化氢，生成的氟化氢气体由炉头进入洗涤塔进行洗涤，洗涤后的氟化氢由冷凝器进入中间槽，然后经过精馏、脱气制得成品无水氟化氢；固体残渣由炉尾排出。

The volatile oil from pods of the Albizzia julibrissn Duyazz was extracted by steam distillation for the first time.

采用水蒸气蒸馏法对甘肃天水产的合欢荚果挥发性成分进行首次提取，挥发油得率约为 0 。

After the above technical innovation, both the syrup concentration and the fermented alcoholicity got improved, and steam consumption reduced by 11.6 % in distillation process and by 6.3 % in feedstuff production process respectively.

工艺改造后，粉碎料浆浓度得以进一步提高，发酵酒度也随之提高，在蒸馏、饲料生产中蒸汽消耗较原来分别降低了11.6 %和6.3 %。

"A gourd-shaped flask forming the body of an alembic, formerly used in distillation."

"一种葫芦状的烧瓶，构成蒸馏器的主体，曾经使用于蒸馏过程中。"

A gourd-shaped flask forming the body of an alembic, formerly used in distillation.

葫芦形蒸馏瓶一种葫芦状的烧瓶，构成蒸馏器的主体，正式使用于蒸馏过程中

The running length of alkane distillation column was prolonged from average 2 months to more than 9 months.

环己酮生产工艺中烷蒸馏塔工作周期由改造前的平均2个月延长至9个月以上，实现整套装置长周期稳定运转。

During the process, the product stream is subjected to an interstage distillation step, thereby removing at least a portion of the alkylate from the product stream before the product stream is introduced into a downstream reactor.

在该方法中，产物流在进料到下游反应器之前，进行级间蒸馏步骤，由此从产物流中脱除至少部分烷基化物。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48