The invention uses benzene carbonic acid as raw material, uses hydrogen gas as reducing agent, and uses ZnO and CeO2 as main accelerating agent. In solid-bed reactor the invention carries out hydrogenation reduction reaction. The reaction temperature is 340-440Deg.C, gas hourly space velocity is 600-4800h-1, hydracid mole rate is 20:1-160:1, the selectivity ratio of benzaldehyde is 99%, and the productivity is above 95%.

該方法以苯甲酸為反應(yīng)原料国产小视频网站，以氫氣為還原劑18岁一下禁止观看网站，以ZnO和CeO 2 的復合氧化物為主催化劑久久久久国产99久久国产，在固定床反應(yīng)器中国产免费观看试看免费AV，進行氣相加氫還原反應(yīng)，反應(yīng)溫度為340℃～440℃女生被男生操的黄色网站，氣時空速為600h -1 ～4800h -1 www,国产原创Com。，氫酸摩爾比為20∶1～160∶1，采用本發(fā)明制備苯甲醛的選擇性可達99％国产日韩欧美色另类，收率可達95％以上免费的黄色网站能看A片。

The invention uses benzene carbonic acid as raw material, uses hydrogen gas as reducing agent, and uses ZrO2, TiO2 and Y2O3 as main accelerating agent. In solid-bed reactor the invention carries out hydrogenation reduction reaction. The reaction temperature is 340-450Deg.C, gas hourly space velocity is 600-4800h-1, hydracid mole rate is 20:1-160:1, the selectivity ratio of benzaldehyde is 96%, and the productivity is above 90%.

該方法以苯甲酸為反應(yīng)原料唐人呦一呦二在线播放，以氫氣為還原劑女性自慰A级毛片，以復合氧化物ZrO 2 、TiO 2 和Y 2 O 3 為主催化劑久久惹99精品，在固定床反應(yīng)器中色页视频，進行氣相加氫還原反應(yīng)色e网，反應(yīng)溫度為340℃～450℃，氣時空速為600h -1 ～4800h -1 www一级www刺激黄片，氫酸摩爾比為20∶1～160∶1日本jizzjizz，采用本發(fā)明制備苯甲醛的選擇性可達96％以上，收率可達90％国产精品露出走光福利。

hydracid：氫酸

hydroxide 氫氧化物,羥化物 | hydracid 氫酸 | hydrocarbon 碳氫化合物,羥

hydracid：氫氟酸

甲醇 alcohol | 氫氟酸 hydracid | 酒精 alcohol

hydracid：氫酸juh中國學習動力網(wǎng)

hydroxide 氫氧化物,羥化物juh中國學習動力網(wǎng) | hydracid 氫酸juh中國學習動力網(wǎng) | hydrocarbon 碳氫化合物,羥juh中國學習動力網(wǎng)