查询词典 benzol

The products coke is exported to foreign countries in addltion to rneet the production requirements of matching calcium carbide plants , and coal tar , crude benzol , mascagnite are exported to other countries , what's more , the rest coal gas can be used for generating power by power supply plants.

为配合政府对晋陕蒙宁接壤区落后半焦生产的治理工作，依据当地煤炭资源较为丰富的优势，现拟在横山县横山镇吴家沟工业园区建设一座上规模、环保型、资源综合利用的大型捣固焦生产设施——年产90万吨捣固焦化工程及2*25MW煤气发电、1 * 25000KVA 电石炉配套工程。

Molybdophopsphoric Acid Catalysis in the Oxidative Cleavage of Olefins by the Hydrogen Peroxide Oxidative cleavage of the double bond could be catalyzed by H_3PMo_(12)O_(40) using H_2O_2 as oxidant, various trisubstituted olefins were oxidized to aldehydes or ketones in high yields. The system was not satisfied for electron-deficient olefins such as trans-(2-nitrovinyl) benzol or chalcone. The reaction of aliphatic olefins did not occur under the same conditions.

二、磷钼酸催化过氧化氢对烯烃的氧化断裂反应用过氧化氢(30％)作为氧化剂，磷钼酸可以催化氧化碳碳双键的断裂反应，三取代的烯烃被氧化生成醛或酮，产率较高；此体系对于缺电子烯烃如查尔酮，不饱和硝基化合物的断裂反应效果较差，脂肪族烯烃在此体系下的氧化并不发生。

Main products are: industrial naphthalene, coke, coal tar, from crystal anthracene oil, electrode paste, confined paste, Crude Benzol, anthracene oil, sulfur and other industries.

主营产品有：工业萘，焦炭，煤焦油，脱晶蒽油，电极糊，密闭糊，粗苯，蒽油，工业硫磺等。

A type of modified methyl benzene sulfonic acid sodium salt was synthesized by Friedel-Crafts reaction,knoevenagel reaction and sulfonation reaction with methyl benzol as row material.

以甲基苯为初始反应物，通过付-克反应，knoevenagel反应，磺化反应，最后合成一种改性甲基苯磺酸钠。

Wax was produced by two-stage vacuum filtration of acetone-benzol dewaxing unit with the fraction of the second side-cut vacuum distillation as material.

以减压蒸馏二线抽出物为原料，在重油酮苯脱蜡装置的两段过滤工艺中，采取更换冷洗喷头，封堵过滤机底部抽真空过滤面积，调整一段、二段过滤机进料温度分别为-10℃，0℃等措施，进行了58℃石蜡的工业化生产。

The waste acid from benzol refining is carried through preliminary,standing and separating the acid tar,and then it is sent to the boiling bed of the boiling furnace of the sulfuric acid production plant roasting.

精苯废酸经过初步处理、静置分离去除酸焦油后送入硫酸生产装置沸腾炉沸腾层进行焙烧，通过高温裂解、吸收得到硫酸，将废物进行资源化处理利用。

Group A = atmospheres containing acetylene; Group B = atmospheres containing hydrogen; Group C = atmosphere containing ethyl-ether vapors, ethylene, or cyclopropane; Group D = atmospheres containing gasoline, hexane, naphtha, benzene, butane, propane, alcohol, acetone, benzol, lacquer, solvent vapors or natural gas.

组A =大气中含有乙炔；组B =大气中含有氢；组C =大气中含有乙醚蒸汽，乙烯，或环丙烷；组D =大气中含有汽油，乙烷，石脑油，苯，丁烷，丙烷，酒精，丙酮，不纯苯，漆，溶剂蒸汽，或天然气。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。