Of the limestone or dolomite to be calcined are usually 石灰石或白云石煅燒的
Technological measures of using anthracite coal to calcinate clinker in the rotary kiln 回轉(zhuǎn)窯采用無煙煤煅燒的工藝技木措施
Can be removed by screening the milk of lime , some other impurities , such as mgo , sio 同時(shí),未煅燒的碳酸鈣可以通過篩選石灰乳和其它雜質(zhì)例如
Is not the cup that hold your wine the very cup that was burned in the potter ' s oven 難道盛著你酒的杯,不正是那只曾在陶工窯中煅燒的杯胚么?
Standard specification for coal fly ash and raw or calcined natural pozzolan for use in concrete 混凝土中使用的煤飛灰和未處理的或煅燒的天然火山灰的標(biāo)準(zhǔn)規(guī)范
Extenders for paints - specifications and methods of test - part 9 : calcined clay iso 3262 - 9 : 1997 ; german version en iso 3262 - 9 : 1998 涂料的填充料.規(guī)范和試驗(yàn)方法.第9部分:煅燒的粘土
2 . in this thesis , the mesoporous silica was experimented by using macromolecule microemulsion as template , and template was removed through calcinations and extraction with hot ethanol . the mesoporous materials were synthesized and characterized with tem , x - ray diffraction , nitrogen adsorption / desorption and ft - ir techniques , etc . the results showed that all the samples had larger porediameter than samples " through calcinations under resembled conditions , but the mesopore ordered poorly 首先以剛合成的粒徑均勻分布的高分子微乳液為模板劑和反應(yīng)介質(zhì),采用萃取和煅燒的方法得到了介孔氧化硅材料,采用ft - ir 、 xrd 、 tem 、 n _ 2吸附脫附曲線等測(cè)試手段對(duì)經(jīng)不同處理過的介孔氧化硅材料結(jié)構(gòu)進(jìn)行了表征。
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(jié)果表明:在合適的反應(yīng)條件下,用上述三種合成方法都能得到xrd數(shù)據(jù)與標(biāo)準(zhǔn)fetio _ 3物相基本吻合的粉體;合成反應(yīng)需要克服的主要問題是防止體系中fe ~ ( 2 + )的氧化,因此,整個(gè)反應(yīng)必須在真空或者非氧化性氣體保護(hù)下進(jìn)行,本研究需要的樣品是在高純從保護(hù)下合成的;煅燒的時(shí)間和溫度對(duì)最終的產(chǎn)物也有一定的影響,研究發(fā)現(xiàn):合理的煅燒時(shí)間和溫度分別為120分鐘和1100 。