色色新妈妈电影

鶴壁市華通分析儀器有限公司

htyq@hbhtyq.com

産品目錄 CATALOG

技術文章 當前位置：首頁 > 技術文章 > 詳細內容

對低溫熱解煤焦油中酚類的提取(一)

发布时间：2012-11-21 点击次数：1241次

什麽是焦油

煤焦油是煤炭幹餾時所生成的具有刺激性的臭味黑色的或者褐色的有著粘稠狀的液體，稱爲焦油。

煤焦油它是以芳香烴爲主有機混合物，它含有一萬多種的多種化合物，可提取大約有200多種。在目前有利用價值的並且具有提取經濟合理的約有50多種。深加工後獲得的輕油、酚、萘、洗油、蒽、咔唑、吲哚、瀝青告示一系列産品都是合成纖維、農藥、染料、塗料、醫藥、助劑、合成塑料及精細化工等産品的基礎原料，它也是冶金、合成、編織、造紙、建設、交通等行業基本的原料，許多新産品是在石油化工中所得不到的。

什麽是酚

酚是一種帶有羟基的芳香烴，其煤焦油之中所含的酚俗稱爲焦油酸，現已查明的大約有60多種，主要是苯酚、甲酚、二甲酚、三甲酚及萘酚（量少）。苯酚、甲酚、二甲酚低級酚大多存在酚油餾分中。酚類大都具有特殊的臭味，有腐蝕性及毒性。暴露在其空氣中和陽光下色澤會逐漸的變深。如苯酚變成微紅色。要從煤焦油餾分中提取酚時，需先制得粗酚，再進一步的分離精制成焦化苯酚、工業酚、間對甲酚和鄰甲酚、工業二甲酚等。

經營産品

聯系我們

地址：金山工業園區淇山南路85號
電話：0392-2643677
郵箱：htyq@hbhtyq.com
傳真：0392-3253111
郵編：458030

鶴壁市華通分析儀器有限公司管理後台 GoogleSitemap

豫公网安备 41061102000020号

備案號：豫ICP備08104875號-4

聯系人：龍經理
13939283560

The great ship steamed onward, day after day and night after night. There was no storm to break the monotony; no sail showed itself on the horizon; no one left the steamer, and no new-comers appeared; nobody saw fit to quarrel with any one else; and there was not a passenger who showed a disposition to quarrel with his surroundings. Stories were told and songs were sung, to while away the time; and, finally, on the twentieth day, the captain announced that they were approaching land, and the voyage would soon be over. "I could go on with a long account of the tortures in China, but they are not very pleasant reading, and, besides, some of them are too horrible for belief. I will stop with the torture known as 'the hot-water snake,' which consists of a coil of thin tubing of tin or pewter in the form of a serpent. One of these coils is twisted around each arm of the victim, and another around his body, in such a way that the head of the snake is higher than any other part. Then they pour boiling water into the mouth of the snake, and the flesh of the prisoner is burned and scalded in the most terrible manner. This punishment is said to be used rarely, and only[Pg 374] on persons accused of crimes against the government. It is too horrible to be popular, even among the most cold-blooded people in the world. "No, Lieutenant, she nearly cried. Oh, I wish we were on some dangerous errand to-night, instead of just camp and bed!" One glance at the dim mirror and Leona Lalage flew down the corridor. The music of the band was like the sound of mocking demons in her ears. As she flew up the stairs she could see the blank windows of the Corner House staring dreadfully in. Then she locked the door behind her and flung herself headlong down on the bed. . . . Surely they were a long time getting that hot water. In such a case as this hurry was everything. Bruce crept from the room and looked over the banisters. The whole place was in darkness! "Just a moment," Leona said eagerly. "Suppose I deny that. How are you going to prove that I did so?" It was weary work sitting there and pretending to drink, but patience has its reward at last. Gradually the shy swindlers became accustomed to the seedy shop assistant, who even went out of his way to give them hints as to credulous firms. It seemed to Prout that he knew all the gang at last save one. 162 "I told you to go," she repeated, raising her brows. "Come here, Shorty, you dirty little rascal," said the Deacon, assuming a severely maternal tone, at which Si laughed feebly but cheerily, "and let me wash your face and comb your hair." a-courtin', as you will know if ever you was a widower, and he "Could the gunner knock a man's head off, or one of his legs, just as he pleased?" "But—" "You can't go by yourself—he wudn't like it." "Not if we stick to the farm. Did you notice that ring on his little finger?" "Can't you mortgage?" HoME 色色新妈妈电影 ENTER NUMBET 00105coin.com.cn
www.amffszo.com.cn
www.czholicz.com.cn
www.firenzi.com.cn
huadfapk.com.cn
jhglue.com.cn
www.nsysiv.org.cn
rfbearing.com.cn
s3caeiw3.com.cn
www.sphl.com.cn