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- normal pressure synthesis 常压合成
- This experiment can be done under normal pressure. 这个实验在常压条件下进行即可。
- To put(gas or liquid) under a greater than normal pressure. 用大于正常压力对(气体或液体)施压
- In this paper,a method of synthesis of diisopropyl ether(DIPE) from iospropanol (IPA) with a macroporous cation exchange resin catalyst,D006 under normal pressure is discussed. 以异丙醇为原料,在常压下以大孔强酸性阳离子交换树脂D006为催化剂,在固定床反应器中制取异丙醚。
- At normal pressures steam condenses at 100℃. 在正常的压力下,蒸气在摄氏100°时凝结成液体。
- The alkylation of phenol with MTBE to synthesis of 2,4-di-tert-butylphenol(2,4-DTBP) has been studied on HY type catalysts in a continuous flow fixed bed reactor under normal pressure. 首次以甲基叔丁基醚(MTBE)为烷基化剂,在HY分子筛催化剂上与苯酚烷基化合成对叔丁基和2,4-二叔丁基苯酚(2,4-DTBP)的反应规律进行了研究。
- Eventually, the hose springs a leak or ruptures under normal pressure. 最后在正常压力下热水管产生裂缝或破裂.
- At normal pressures steam condenses at 100oC. 在正常压力下,水蒸气在摄氏100度时凝结。
- W-pyrophyllite is used as pressure medium for high temperature and high pressure synthesis of diamond. 本文采用W型叶蜡石作为超高压高温合成金刚石的传压介质,分析了其主要化学成分与矿物相组成。
- The synthesis of methyl 4-tert phenylacetate with methanol and 4-tert phenylacetic acid as reactants and normal pressure with concentrated H 2SO 4 as a catalyst under microwave irradiation is studied. 对叔丁基苯乙酸在浓硫酸催化下,采用微波常压法与甲醇合成对叔丁基苯乙酸甲酯。
- The new method of synthesis aminoacetic acid from urea and chloroacetic acid under normal pressure was studied.The total yield of aminoacetic acid was about 73% under optimal reaction condition. 研究了以脲和氯乙酸为原料,在常压下反应合成氨基乙酸的实验新方法,在合适的反应条件下,氨基乙酸的收率达73%25,纯度达96%25。
- The results indicate that the formation of calcium silicate hydrate is difficult at normal pressure. 结果表明,在常压下除硅,难以形成水合硅酸钙。
- After reaching the normal pressure, switch off and take down nozzle jet and plug to end inflation. 当到达正常气压后,切断启动开关,取下气嘴及插头,充气完成。
- Economic: Keep car tire normal pressure at any time to save petroleum, protect tire and guarantee safety. 节省花费:汽车轮胎随时保持正常胎压,可节省汽油、保护轮胎、并确保行车安全。
- This paper was study of atmospheric pressure synthesis of p-nitroanisole from p-nitrochlorobenzene,methanol and sodium hydroxide catalysed by phase transfer catalyst benzyl triethyl ammonium chloride. 以对硝基氯苯、甲醇和氢氧化钠为原料,用苄基三乙基氯化铵作相转移催化剂,在常压下合成了对硝基苯甲醚。
- Being operated in normal pressure and decompression,It especiall is more marked. 特别是在常压减压操作时更为显著。
- Atmospheric pressure synthesis of ortho-nitroanisole from o-nitrochlorobenzene, methanol and sodium hydroxide catalysed by phase transfer catalyst benzyl tributyl ammonium chloride was studied. 以苄基三丁基氯化铵做相转移催化剂,邻硝基氯苯、甲醇和氢氧化钠为原料,在常压下合成了邻硝基苯甲醚。
- The process of melting HNS by blowing NH3 under normal pressure requires moderate content of [O],[S] in molten metal. 吹NH3条件下,钢液中保持一定量的氧、硫表面活性元素,有利于氮的吸收。
- Objective:To explore nosogenesis operative indication and opportunity of normal pressure cranial hydrocephalus. 目的:探讨正常压力性脑积水的发病机理、手术指征及手术时机。
- The preparation of trimesic from mesitylene by air in a liquid-phase oxidation under normal pressure was studied. 介绍以均三甲苯为原料,采用液相空气氧化法制取均苯三酸的工艺方法。