二氧化锆

The anti-jamming ability of igniter depends on the charge in the igniter. The combustion of the igniter charged with barium nitrate and those charged with magnesium powder and PTFE is stable, while the igniter charged with zirconium hydride and lead oxide is unstable. The standard error of duration of the third kind of igniter flame is 523 ms ,and also its nozzle hole is blocked seriously.

不同药剂的点火具抗干扰性能不同，其中以硝酸钡为药剂主成分的点火具和以镁粉＋PTFE为药剂主成分的点火具燃烧性能稳定，以氢化锆、二氧化铅为药剂主成分的点火具工作稳定性较差，火焰持续时间标准差为523 ms，点火具喷孔堵塞严重。

The acid property of zirconium oxychloride was characterized by means of DTA and FT-IR spectra of pyridine absorbed on the surface.

采用DTA和吸附吡啶的FT-IR表征氯氧化锆的表面酸性，用Hamm ett指示剂测定其酸强度，以催化合成环己酮2，3-丁二醇缩酮为探针反应优化缩酮反应条件，并考察它对其他缩酮反应的催化活性，比较了不同催化剂对缩酮活性的影响。

Typical application: Co-WC powder, chrome oxide powder, Lead sesquioxide powder, Chromium carbide powder, zirconium oxide powder, Ni Base Alloy-Chromium Carbide,etc.

典型应用：钴碳化钨粉、氧化铬粉、三氧化二铅粉、碳化铬粉、氧化锆粉、镍铬碳化铬粉、钴铬铌钇粉等。

Process technology for manufacture of δ-layered crystalline sodium disilicate using dilute alkali liquor and acidic silica residue ,which are waste effluents from zirconium oxychloride production,with supplement of a small amount of quartz sand was studied.

利用氯氧化锆生产过程中排放的稀碱液、酸性硅渣辅加少量石英砂，研究了δ-层状结晶二硅酸钠的制备工艺，得到较佳合成工艺条件为：反应液配比M=n(S iO2)/n(Na2O)=2。

The synthesis methods of ethyl lactate catalyzed by P-toluene sulfonic acid, cationic exchange resin, ferric chloride hexahydrate, stannous chloride, Aluminium chloride, modified zirconium oxid, ferric-potassium vitriol, ammonium ferric sulfate dodecahydrate, rave earth sulfate, sodium bisulfate monohydrate, complex solid superacid, heteropoly acid, molecular sieve, ionic liquid and lipase etal.

评述了对甲苯磺酸，阳离子交换树脂，六水三氧化铁，氯化亚锡，三氯化铭，改性氧化锆，铁钾矾，十二水合硫酸铁铵，稀土硫酸盐，一水硫酸氢钠，复合固体超强酸，杂多酸，分子筛，离子液体和脂肪酶等催化剂催化合成乳酸乙酯的合成方法。

Objective:To evaluate the cytotoxicity of twice sintered machinable nano-meter zirconia ceramic for dental use.

目的：对二步烧结牙科可切削牙科纳米氧化锆陶瓷细胞毒性进行初步评价。

Secondly, the silver based catalysts modified by phosphorus, zirconium, zinc, potassium and so on using molecular sieve as carrier, which were produced by ion-exchange method, had also good catalytic performance for 1,2-propane glycol oxidation to methylglyoxal. The conversion of 1,2-propane glycol and the selectivity of methylglyoxal were both high, and the impurity such as formaldehyde and acetaldehyde in the product is little. At the condition of the temperature 300 ℃, the molar ratio of oxygen to 1,2-propane glycol 1.7:1, the space velocity 6000h~(-1), and the concentration of 1,2-propane glycol 70wt%, the conversion of 1,2-propane glycol is 90% and the selectivity of methylglyoxal is 45% on the Ag-P catalyst.

其次对采用离子交换法制备的负载在分子筛上的银系催化剂进行了研究，发现此催化剂在助催化剂磷、锆、锌、钾等的作用下对丙二醇的低温氧化脱氢具有很高的活性，可以得到较好的丙酮醛的收率，并且产物中的甲醛、乙醛副产物的量比较低；经过对Ag-P催化剂上反应条件的考察，发现当温度为300℃、氧醇比1.7：1、空速6000h~(-1)、丙二醇浓度为70wt%时，丙二醇的转化率为90%，丙酮醛的选择性为45%。

The free phosphonic groups shielded most of the Lewis-acid sites on the surface of zirconia and imparted negative charges on the surface at high pH, resulting in excellent resolution for phenols and a great improvement for the separation of benzoic acids.

在该固定相上，酸性化合物的色谱性能得到明显改善，硝基酚、苯二酚等在氧化锆上通常难以洗脱的酚类化合物，均得到了高效分离。

Based on the analysis of organic geochemical characteristics, Inorganic geochemical exploration methods and nano-geochemical exploration methods were adopt to research geochemistry on the surface above the Xin Chang gas field,and it is discovered there is abnormity of trace element ,for example , Cu、Zn、Ni、V、Fe_2O_3、Ba、W、Sb、Ag、Y、Zr、La and Ba、Sr、Ti、Cu、Zn、Ni、Al、P、La series、Y、Co、W、Ag、Nb、Tl ect, showing the top effects and chimney effects,which is important to indicate gas reservoir.

本文以有机地球化学特征分析方法为基础，采用无机地球化学勘探方法和纳米级地球化学勘探方法对新场气田上方地表无机地球化学和纳米级地球化学特征进行综合研究，发现了无机微量元素铜、锌、镍、钒、三氧化二铁(Fe_2O_3)、钡、钨、锑、银、钇、锆、镧等及纳米级微量元素钡、锶、钛、铜、锌、镍、铝、磷、镧系除钷(Pm、钇、钴、钨、银、铌、铊等元素在气田上方异常特征呈现顶端效应或烟囱效应，该类元素对气田的勘探具有重要的指示意义。

Two hundred of the envelopes contained a small diamond,while the others held zirconia stones -- a cheap diamond -lookalike used in costume jewellery.

信封的二百包含了一个小的钻石，当那的时候其他拿着了氧化锆石头--一个廉宜的钻石-在装束珠宝中用的 lookalike。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。