粉化

According to the classifing method of Geldart,ultrafine powders belong to group C particles.It is difficult to fluidize because of such cohesiveness.However,it was discovered recently that some powders can be fluidized smoothly through forming larger agglomerates at high gas velocity,and the fluidization quality of some powders can be improved by external force.

按Geldart的分类法，超细粉属难流化的C类颗粒，但近年来的研究表明，某些超细粉在高气速下可以形成较大的聚团，而以聚团形式实现平稳流化；对在高气速下难以流化的超细粉，人们通过引入外力场等方法来改善其团聚特性，提高流化质量。

The operating range suitable for three-phase reaction was obtained and a mathematical model established. The results show that MSB formed by fine magnetizable powder and fliudizing flow can be operated stably in a wide range. MSB has three kinds of regimes: particulate, chain, and magnetically condensed. In these regimes, the chain regime is the best for three-phase reaction. When Ni-RE-P catalyst particles mixed with some iron powder, magnetically stabilization is easily achieved; therefore, it is possible that NiRE-P catalyst can be controlled in the bed for reaction more easilly if adding certain percentage of iron powder.

研究结果表明：细粉铁磁性颗粒形成的磁稳定床可在较宽流速范围内稳定操作，该磁稳定床有三种操作状态：散粒状态，链式状态和磁聚状态，其中有利于进行气液固三相反应的操作状态是链式状态；当磁稳定床在最小流化速度和带出速度之间操作时，床层处于链式状态；最小流化速度和带出速度可用（1-24）、（1-25）、（1-27）、（1-33）式计算；弱软磁性Ni-RE-P非晶催化剂中混入定量铁粉颗粒后便可形成磁稳定床，因此利用混入铁粉颗粒在外加磁场作用下控制弱磁性非晶催化剂颗粒进行反应的方法是可能的。

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。

Chapter three: The studies of zinc dust assisted the green carbonyl olefination under thesolvent-free conditions.

第三章：锌粉促进无溶剂下羰基化合物的绿色烯基化反应研究该部分首次研究了在TMSiCl存在下，无溶剂非催化条件下，锌粉促进溴化苄与羰基化合物的烯基化反应，发现在无溶剂锌粉促进下，可以将羰基化合物立体选择性

Research results indicate that X FLOUR has notable effects of fluidizing and water reducing.

研究结果表明：X粉具有显著的流化与减水效应，其流化与减水效果与目前市售掺合料的最高水平相当，明显好于硅灰。X粉与硅灰复合后，仍具有流化效应。X粉产生流化效应的机理，一是增加水泥浆悬浮体系的分散性；二是通过填充效应减少填隙水，增加了用于混凝土流动性的水量；三是增加混凝土混合料的浆体体积。X粉流化与减水效应的发挥，以与高效减水剂双掺为前提。

Distribution Products: Cottonseed Meal, peanut meal, rapeseed meal, sesame meal, palm meal,·, corn fiber feed, protein, alcohol, corn meal, corn ripening powder Chrysanthemum powder, chili powder, meal, cakes, and jujube do, sugar protein, corn twist lemon acid residue, wood residue Department of citric acid, penicillin bacterial protein, bacterial protein oxytetracycline, grape seed meal, cake, corn gluten meal, soy protein, sunflower meal, wheat bran, wheat, Shan Java powder, slag Huaimi, white distiller's grains, brewer's grains, malt root, apple pomace, corn bran, monosodium glutamate protein powder, turmeric powder, oil cephalosporins such as hundreds of feed raw materials, you are the best procurement base!

棉粕，花生粕，菜粕，芝麻粕，棕榈粕，肉粉，玉米纤维饲料，酒精蛋白，玉米粗粉，玉米熟化粉，菊花粉，辣椒粉，粕，饼，红枣干，糖蛋白，玉米拧檬酸渣，木署柠檬酸渣，青霉素菌体蛋白，土霉素菌体蛋白，葡萄籽粕，饼，玉米蛋白粉，大豆蛋白，葵花粕，麸皮，次粉，山渣粉，槐米渣，白酒糟，啤酒糟，麦芽根，苹果渣，玉米皮，味精蛋白粉，姜黄粉，油头孢等上百种饲料原料，是您理想的采购基地！

The blend flour of corn flour and extrusion flour also make use of the paste degree of extrusion flour to produce cold viscosity.

玉米面粉和膨化粉混合也是利用膨化粉中淀粉充分糊化，从而可使混合粉产生冷粘性。

Aiming to a method for the synthesis of silicon nitride powder by direct nitridation process based on fluidization technology, a two-dimensional mathematical model of thermal process in a suspended bed was established, the thermal process was simulated based on the commercial CFD software FLUENT, and the effects of the flow velocity of nitrogen gas, the ratio of particle to gas and nitridation temperature on the temperature of the bed and the conversion rate of silicon were analyzed.

针对基于流态化技术利用硅粉直接氮化合成氮化硅粉的新工艺，建立了悬浮床内热过程的二维数学模型，并借助CFD商业软件FLUENT对悬浮床内热过程进行了数值模拟，分析了氮气速度、粉气比和氮化温度等因素对温度场和硅转化率的影响。

A clear resin derived from polymerised esters of various acrylic monomers. Acrylics are used for automotive topcoats and in other applications where resistance to chalking with exposure to sunlight is important

一种由不同丙烯酸单体聚合的透明的酯类树脂，丙烯酸树脂同在汽车顶涂或其他的场合在阳光曝晒下具有非常高的耐粉化性能。

This indicates that the broken rocks of crushing zone, produced in the previous spring blasting, has fallen off from the chamber wall, and erupted out of the borehole with the succeeding actions of the shock-wave and the explosion gas further expansion in the chamber.

这表明二次爆扩时的爆炸冲击作用使前次爆扩产生的本已粉化破碎的岩石脱离腔体，随高速喷发的气体产物冲出孔外，从而使空腔体积因碎岩脱落排出而增大。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。