A new recovery technology of solid waste was made which is from furfuryl alcohol production by furfural hydrogenization. When the solid waste is placed in a vacuum drying box, and is under lower negative pressure and at 130℃, the organic materials in solid waste can be distilled and then returned to the refining workshop to produce qualified furfuraldehyde and furfuryl alcohol. The remainder is mixed with soda ash and roasted in a reverberating furnace. The sodium chromate can be obtained by leaching. Rough cupric oxide is dissolved in nitric acid and cupric nitrate is obtained. A new catalyst was prepared by the above sodium chromate and cupric nitrate and used in furfuryl alcohol production.

將糠醛液相加氫生產(chǎn)糠醇產(chǎn)生的廢渣置于真空干燥箱中手机看黄av免费网址，在較低的負(fù)壓狀態(tài)下保持130℃的溫度AV福利免费在线观看，蒸餾回收廢渣中的有機(jī)物肏屄免费视频，返回糠醇精制車間獲得合格的糠醇與糠醛產(chǎn)品欧美日逼性交；剩余的固體廢棄物與純堿混合狼友色成人网在线播放视频网站免费，在反射爐中焙燒不卡一级片，浸取獲得鉻酸鈉水溶液；最后剩下的粗氧化銅溶于硝酸得到硝酸銅溶液欧美五区；將鉻酸鈉溶液欧美激情一区二区三区在线免费看、硝酸銅溶液按一定比例混合，加入氨水?dāng)嚢柙谙呖粗形淖帜唬蛛x出的沉淀經(jīng)傳統(tǒng)方法焙燒活化免费看全过程曰批40分钟、造粒制得新催化劑，回用于糠醛液相加氫生產(chǎn)糠醇婷婷激情偷拍自慰。

Two skeleton nickel catalyst s A and B were prepared at 50 ℃ and 90 ℃ respectively and hydrogenation of furfuryl alcohol to tetrahydrofurfuryl alcohol was studied with the catalysts under different reaction conditions.

在中溫和高溫下制備了兩種骨架鎳催化劑 A和B黄片av毛片伊人久久，研究了不同的反應(yīng)條件對(duì)兩種骨架鎳催化劑的影響，確定了最佳反應(yīng)條件免费进的黄色网站。

To furfuryl alcohol, environmental-friendly non-chrome catalysts are taken as dominant aspect.

綜述了糠醛加氫制備糠醇及2–甲基呋喃催化劑的近期研究進(jìn)展日韩新片免费无码观看。

Two skeleton nickel catalysts A and B were prepared at 50 ℃ and 90 ℃ respectively and hydrogenation of furfuryl alcohol to tetrahydrofurfuryl alcohol was studied with the catalysts under different reaction conditions.

研究了以骨架鎳為加氫催化劑，以糠醇為原料制備四氫糠醇欧美首页。在中溫和高溫下制備了兩種骨架鎳催化劑A和B欧美国产综合几欧美视频，研究了不同的反應(yīng)條件對(duì)兩種骨架鎳催化劑的影響，確定了最佳反應(yīng)條件精品日韩妖精视频网站在线播放。

It is found that conversion of furfuryl alcohol was higher than 99%,and THFA yield and selectivity achieved or were close to 97%by using catalyst Ⅱ with a small quantity of promoters.

對(duì)于含少量助劑的鎳催化劑Ⅱ大学生一级一片第一次一级莫，在393 K黄色国产区视频、4.0 MPa和空速0.25 h\+\{-1\}時(shí)，糠醇轉(zhuǎn)化率可達(dá)99%以上国模高清，四氫糠醇收率和選擇性都達(dá)到或接近97%,国产男靠女免费视频网站。

It is characterized in that: it uses furfuryl alcohol as raw material, via catalyst to polymerize the poly-furfuryl alcohol to be plated on porous support to form a coat; than drying can carbonizing to prepare compound carbon film.

其特征在于以是以糠醇為原料，在催化劑的作用下聚合成聚糠醇后直接在多孔支撐體上涂覆成膜尤物成人高清在线观看网址大全，經(jīng)干燥国产操B在线视频、炭化制備出復(fù)合炭膜。

Furfuryl propionate was synthesized from furfuryl alcohol and propionyl chloride using hexahydropyridine as catalyst and anhydrous sodium bicarbonate as acid-caputor.

以α呋喃甲醇和丙酰氯為原料人妻少妇视频一区中文字幕，以六氫吡啶為催化劑一级黄色网站A片，無(wú)水碳酸氫鈉為縛酸劑合成了α呋喃甲醇丙酸酯。

Furfuryl alcohol ; hydrogenation ; skeleton nickel catalyst ; tetrahydrofurfuryl alcohol

糠醇在线观看中文字幕2022；加氫免费看黄色三级网站；骨架鎳催化劑；四氫糠醇

Tetrahydrofurfuryl alcohol was prepared from furfuryl alcohol with hydrogenation reduction by using the catalyst at 393-413 K,0.25-0.4 h-1 and 2.0-4.0 MPa.

在393～413 K欧美天天搞网站、0.25～0.4 h\+\{-1\}一级毛片视频在线看、2.0～4.0 MPa條件下，用上述催化劑加氫還原糠醇制備四氫糠醇ww黄色。

The fractured surfaces and the structure of the resin binder links, which exist in nitrogen-free high-furfuryl-alcohol resin sand mixture and in high-nitrogen content low-furfuryl-alcohol resin sand mixture respectively are investigated by the aid of scanning electronic microscope.

本文通過(guò)掃描電鏡分別對(duì)高糠醇無(wú)氮樹(shù)脂砂和低糠醇高氮樹(shù)脂砂斷口的破裂形式95午夜电影，樹(shù)脂膜組織結(jié)構(gòu)進(jìn)行了觀察和研究。