氧氣煅燒 的英文怎麼說
中文拼音 [yǎngqìshāo]
氧氣煅燒
英文
air roasting-
Shaft kilns such as the rce lime kiln are used to calcine lump limestone at the same time generating the co
公司這樣的石灰豎窯用於煅燒石灰石塊同時生成二氧化碳等必需的廢氣Abstract : in this paper, the preparation of the catalysts for the oxidation of fluorene to fluoreone is studied. the influences of the dipping time, calcining temperature, calcining time and the air quantity during the calcination are discussed
文摘:研究了用工業芴氣相氧化制取芴酮的催化劑製作條件，考察了浸漬時間、煅燒溫度、煅燒時間和煅燒空氣量對催化劑製作的影響The sample composition was analyzed by means of tg and x - ray diffraction. the following conclusions can be drawn from the experiments : given conditions, the sample powder that has the same xrd data as the standard fetioa can be gotten when use any method mentioned above ; the key in synthesis is to avoid the oxidation of fe2 +, so the whole process should performed under vacuum or neutral atmosphere, samples used by this study were prepared under nitrogen atmosphere ; the heat - treated time and temperature have some influence on the sample powder, results show that the proper time and temperature is 120 minutes and 1100 respectively
研究結果表明：在合適的反應條件下，用上述三種合成方法都能得到xrd數據與標準fetio _ 3物相基本吻合的粉體；合成反應需要克服的主要問題是防止體系中fe ~ （ 2 + ）的氧化，因此，整個反應必須在真空或者非氧化性氣體保護下進行，本研究需要的樣品是在高純從保護下合成的；煅燒的時間和溫度對最終的產物也有一定的影響，研究發現：合理的煅燒時間和溫度分別為120分鐘和1100 。
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