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- Purification of diphenyl ether by crystallization without solvent is discussed. 用无溶剂结晶法纯制二苯醚,该方法具有高效、经济和洁净的特点。
- Purification of 2,6 dichlorotoluene by the recrystallization method without solvent was studied. 研究了用无溶剂重结晶法提纯2,6二氯甲苯。
- Di-acetals of pentaerythritol were synthesized by acetalization, carbonyl compounds, aldehydes or ketones and pentaerythritol under microwave irradiation without solvent. 微波辐射下,以氨基磺酸作催化剂,不用溶剂,合成了8种季戊四醇双缩醛(酮)。
- Di-acetals of pentaerythritol were synthesized by acetalization, carbonyl compounds, aldehydes or ketones pentaerythritol under microwave irradiation without solvent. 微波辐射下,以氨基磺酸作催化剂,不用溶剂,合成了8种季戊四醇双缩醛(酮)。
- The dispersive and stable aqueous polyurethane emulsion was prepared by IPDI,DMPA,poly(propylene glycol) as raw material and EA as chain extender without solvent. 以IPDI、聚酯/聚醚二元醇和二羟甲基丙酸为主要原料,乙二胺为扩链剂,采用无溶剂法成功制得分散良好、贮存稳定的水性聚氨酯乳液。
- Condition of solidify of damp and hot is used when using, solidify rate is rapidder, and volatilize without solvent, be helpful for labor safety and protection. 使用时利用湿热固化条件 ,固化速度较快 ,且无溶剂挥发 ,有利于劳动安全和保护。
- Hexamethylene glycol bis[3 (3,5 di tert butyl 4 hydroxyphenyl)] propionate was synthesized without solvent with methyl 3 (3,5 di tert butyl 4 hydroxyphenyl) propionate and hexamethylene glycol as raw materials and organic tin as catalyst. 以 3 -(3 ,5 -二叔丁基 -4-羟基苯基 )丙酸甲酯 (简称 3 ,5 -甲酯 )与 1 ,6-己二醇为原料 ,有机锡为催化剂 ,在无溶剂的条件下合成了己二醇双 [3 -(3 ,5 -二叔丁基 -4-羟基苯基 ) ]丙酸酯。
- Anaerobic adhesive is one kind of one-component adhesive without solvent, which stay liquid in the presence of oxygen from air but cure very quickly when all oxygen traces are removed. 摘要厌氧胶是一种单组分无溶剂的胶粘剂,当有氧气存在时为液态,而当氧气被排除后即迅速成为固态。
- Group IIA,IIB element salts of fatty acid were obtained simply and efficiently from the reaction between the fatty acid and the solid metal oxide compound without solvent under microwave irradiation. 应用微波化学这一新兴交叉学科方法固相合成了一系列金属脂肪酸盐。
- High quality epoxidized cottonseed oil plasticizer could be obtained by reaction of formic acid acidified cottonseed oil with hydrogen peroxide using MOA-3 as emulsifier without solvent. 实验结果表明:无溶剂条件下,以脂肪醇聚氧乙烯醚(MOA-3)为乳化剂,用过氧化氢环氧化用甲酸酸化的棉籽油,可获得优质环氧棉籽油增塑剂。
- Liquid phase ammoxidation of p-tert-butyltoluene(PTT) to p-tert-butylbenzonitrile(PTBN)without solvent had been investigated in presence of a mixed oxides supported catalyst prepared by impregnation. 采用负载型金属复合氧化物催化剂,对气相氨氧化反应条件下不稳定的对叔丁基甲苯进行了液相氨氧化反应研究。
- In industrial coating, the coating of cent of coating of escalate ability in swimming, will tall solid, coating, proportion that holds without solvent coating and place of radiation solidify coating. 在工业涂料中,将逐步扩大水性涂料、高固体分涂料、粉末涂料、无溶剂涂料和辐射固化涂料所占的比例。
- It is hard to sleep without a cooler in this room. 没有空气调节器,在这间屋里很难入睡。
- Knowledge without common sense counts for little. 光有学问而无常识,则这种学问无甚价值。
- Crystal Clear Without Solvents translated by 非溶剂结晶提纯
- He acted wrongly and without scruple. 他做了错事毫不内疚。
- It is rash to cross the street without looking both ways. 不朝两边看看就穿马路是莽撞的。
- It is fun eating by stealth without being found. 偷吃而不被人发现很有趣。
- I just want an ordinary car without the frills. 我只要一辆没有多余装饰的普通汽车。
- You cannot enter a military base without a permit. 无通行证者不得擅入军事基地。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries