深山猎户粗大hh蜜婉,高洁在公车被灌满jing液,国产精品videossex久久发布,精品国产乱码久久久久久1区2区

你好,歡迎訪問(wèn)濟(jì)南金昊化工有限公司!

專注品質(zhì),信賴服務(wù)

我們用心做產(chǎn)品服務(wù)

咨詢熱線:

13655318786

公司新聞

您現(xiàn)在的位置: 網(wǎng)站首頁(yè)>>新聞中心>>公司新聞順酐工藝流程包含哪些?

順酐工藝流程包含哪些?

來(lái)源:http://www.zhaoxwol.com/ 日期:2023-10-30 發(fā)布人: 瀏覽次數(shù):0
原料氣的預(yù)凈化和提濃:在催化劑存在的情況下,將含有大量雜質(zhì)的原料氣體進(jìn)行預(yù)凈化處理,使雜質(zhì)濃度降10ppm以下或更低一些,投入后續(xù)工序。
Pre purification and concentration of raw gas: In the presence of a catalyst, the raw gas containing a large amount of impurities is pre purified to reduce the impurity concentration to below 10ppm or lower, and then put into subsequent production processes.
催化劑制備:將一定量的金屬氧化物作為催化劑加入到反應(yīng)器中進(jìn)行還原焙燒以除去其中的氧原子并生成相應(yīng)的絡(luò)合產(chǎn)物如鐵氰化物等中間化合物以及氧化劑如空氣等進(jìn)行反應(yīng)的混合物稱為助燃劑和還原劑混合物。
Catalyst preparation: A certain amount of metal oxide is added as a catalyst to the reactor for reduction roasting to remove oxygen atoms and generate corresponding complex products such as intermediate compounds such as ferrocyanide, and a mixture of oxidants such as air for reaction is called a mixture of combustion aid and reducing agent.
空氣的制備:以空氣代替氫氣作助燃劑的化學(xué)反應(yīng)稱為空氣的氧化作用。
The preparation of air: The chemical reaction of using air instead of hydrogen as a combustion aid is called the oxidation of air.
順酐廠家
苯氧化法:苯氧化法是順酐的傳統(tǒng)工藝技術(shù),主要工藝流程是將苯蒸汽和空氣(或氧氣)按照一定的比例混合,在釩鉬氧化物系催化劑下作用,在固定床反應(yīng)器中氧化生成順酐混合氣,經(jīng)氣體冷卻器初步降溫后,在部分冷凝器中捕集部分液體粗酐,未被冷凝的氣態(tài)順酐用水或者溶劑吸收,制得精酐,液態(tài)順酐在包裝工序冷卻壓制為成品。
Benzene oxidation method: Benzene oxidation method is a traditional process technology for producing maleic anhydride. The main process involves mixing benzene vapor and air (or oxygen) in a certain proportion, acting on a vanadium molybdenum oxide catalyst, and oxidizing in a fixed bed reactor to generate a mixed gas of maleic anhydride. After being initially cooled by a gas cooler, some liquid crude anhydride is captured in some condensers, and the uncondensed gaseous maleic anhydride is absorbed by water or solvent to produce phthalic anhydride, Liquid maleic anhydride is cooled and pressed into finished products during the packaging process.
將一定量的金屬氧化物作為催化劑加入到反應(yīng)器中進(jìn)行還原焙燒以除去其中的氧原子并生成相應(yīng)的絡(luò)合產(chǎn)物如鐵氰化物等中間化合物以及氧化劑如空氣等進(jìn)行反應(yīng)的混合物稱為助燃劑和還原劑混合物。
Adding a certain amount of metal oxide as a catalyst to the reactor for reduction roasting to remove oxygen atoms and generate corresponding complex products such as intermediate compounds such as ferrocyanide and oxidants such as air for reaction is called a mixture of combustion aid and reducing agent.

相關(guān)新聞
老司机午夜福利视频| 色欲av人妻精品一区二区三区| 日韩精品一区二区亚洲av| 整篇都是车的多肉原耽| 粗大的内捧猛烈进出在线视频| 精品无码久久久久久久动漫| 亚洲国产精品无码久久久老少| 久久人妻av中文字幕| 亚洲日韩欧美一区久久久久我| 春药玩弄少妇高潮吼叫| 欧美日韩久久久精品a片| juliaann无码丰满熟妇| 狠狠色综合7777久夜色撩人| 短篇公交车高h肉辣全集目录| 中文无码一区二区三区在线观看| 野花 高清 中文 免费 日本| 亚洲av无码亚洲国产一区| 狠狠躁夜夜躁人爽碰| 第一次处破女18分钟好痛| 美女露出奶头扒开尿口| 国产成人免费ā片在线观看| 裸体丰满白嫩大尺度尤物| 熟妇女人妻丰满少妇中文字幕| 中文字幕av无码一区二区三区电影| 国产嫖妓一区二区三区av视频| 坐公交车被c了2个小时| 黄色电影免费观看| 欧美黑人xxxx高潮猛交| 精品国产三级a∨在线| 亚洲成a人v欧美综合天堂麻豆| 少妇高潮惨叫久久久久久| 精品国产AⅤ无码一区二区| 意大利极品xxxxhd| 和子发生了性关系的免费视频| 青青草国产成人99久久| 国产人妻精品一区二区三区| 免费人妻精品一区二区三区| 露娜拿的金箍棒玩自己视频| 波多野结衣人妻| 欧美人与性动交α欧美精品| 学生和老师xxxx在教室|