对苯二酚

It was concluded that the addition of Hydroquinone can accelerate the reaction drastically.

在一定范围内硝基苯降解率与对苯二酚的加入量成正比。

It was found that the hydrophobic PSt-DVB porous microspheres had excellent adsorption ability to little nonpolar molecular hydroquinone.

从总体上看，多孔聚合物微球对对苯二酚的负载能力要优于对熊果苷和parsol 1789的负载能力。

Light oil, ferrocene, EPA light hydrocarbon, dimethyl ether, xylene, acetone, hydroquinone, potassium permanganate, petroleum ether, naphtha, thiol, butane, sodium hydroxide , synthesis gas reactor

轻质油，二茂铁，轻烃碳五，二甲醚，二甲苯，丙酮，对苯二酚，高锰酸钾，石油醚，石脑油，硫醇，丁烷，氢氧化钠，合成液化气反应罐

The optimum reaction conditions were that the molar ratio of maleic anhydride and p-nitroaniline was 1.2:1, the volume ratio of toluene and DMF was 10:1, the amination temperature was 20~30℃ the cyclization temperature was 145~150℃ and the cyclization time was 6 h over; the amount of p-toluene sulfonic acid was 12% of total reactant mass, the amount of copper sulfate was 0.1~0.5% of total reactant mass, the amount of hydroquinol was 0.1% of total reactant mass.

得到的最佳工艺条件是：n：n为1.2：1，V：V为10：1；胺化反应温度为20~30℃，环化反应温度为140~150℃，环化反应时间为6h以上；对甲基苯磺酸用量为反应物总质量的1%~2%；硫酸铜用量为反应物总质量的0.1%~0.5%；对苯二酚用量为反应物总质量的0.1%。

The results showed that the POV of hemp seed oil was affected remarkably by temperature and time, and the effect of temperature was greater than that of time. The TBHQ had good antioxidation ability to hemp seed oil. TBHQ or BHA with isoascorbic acid or critic acid exhibited great antioxidation ability, the synergistic effect on the oil of critic acid was better than that of isoascorbic acid. When 0.02% TBHQ with 0.005% BHA and 0.01% critic acid or with 0.005%BHA and 0.01% isoascorbic acid was used in the oil, the shelf life of the oil could be prolonged from 4 months to 11~13 months at 20℃.

结果表明，温度、时间对汉麻籽油的自氧化过程有显著影响，且温度的影响更明显；叔丁基对苯二酚对汉麻籽油具有较好的抗氧化性能，柠檬酸和异Vc对TBHQ与丁基羟基茴香醚复配的复合抗氧化剂均表现出较强的协同抗氧化性能，且柠檬酸的协同抗氧化性优于异Vc；添加0.02%TBHQ+0.005%BHA+0.01%柠檬酸或0.02%TBHQ+0.005%BHA+0.01%异Vc复合抗氧化剂，可使汉麻籽油在20℃下的预贮藏时间从4个月延长至11~13个月。

Light oil 2,000 yuan / ton; ferrocene 20000 yuan / ton; DME 2,500 yuan / ton; Light EPA [density 0.60-0.63] 2,000 yuan / ton; sodium bicarbonate 2600 yuan / ton; Mercaptans 3,000 / ton; xylene 3,500 yuan / ton; potassium permanganate 5,000 yuan / ton; petroleum ether 3,000 yuan / ton; naphtha 2900 yuan / ton; butane 2,000 yuan / ton; acetone 4400 yuan / t; hydroquinone 15,000 yuan / ton.

轻质油2000元/吨；二茂铁20000元/吨；二甲醚2500元/吨；轻烃碳五[密度0.60-0.63]2000元/吨；碳酸氢钠2600元/吨；硫醇3000元/吨；二甲苯3500元/吨；高锰酸钾5000元/吨；石油醚3000元/吨；石脑油2900元/吨；丁烷2000元/吨；丙酮4400元/吨；对苯二酚15000元/吨。

Light oil 2,000 yuan / ton; ferrocene 28000 yuan / ton; DME 3,000 / ton; sodium hydroxide 2600 yuan / ton; Mercaptans 18,000 yuan / ton; Flavor 36,000 yuan / ton; Light EPA [density 0.60-0.63] 2,500 yuan / ton; sodium carbonate 1,000 yuan / ton; hydrogen peroxide 1,000 yuan / ton; xylene 4200 yuan / ton; potassium permanganate 5800 yuan / ton; petroleum ether 3,500 yuan / ton; naphtha 2900 yuan / ton; ethanol 2800 yuan / ton; dry gas 4100 yuan / ton; butane 2,500 yuan / ton; acetone 4400 yuan / ton; hydroquinone 18,000 yuan / ton; natural gas (6 gauge) 3850 yuan / ton; gasoline 97 # 3,500 yuan / ton; gasoline 93 # 3,100 yuan / ton; gasoline 90 # 2900 yuan / ton; diesel 0 # 3200 yuan / ton;-10 # diesel 3,500 yuan / ton .

轻质油2000元/吨；二茂铁28000元/吨；二甲醚3000元/吨；氢氧化钠2600元/吨；硫醇18000元/吨；香精36000元/吨；轻烃碳五[密度0.60-0.63]2500元/吨；碳酸钠1000元/吨；双氧水1000元/吨；二甲苯4200元/吨；高锰酸钾5800元/吨；石油醚3500元/吨；石脑油2900元/吨；乙醇2800元/吨；干气4100元/吨；丁烷2500元/吨；丙酮4400元/吨；对苯二酚18000元/吨；天然液化气(6个压)3850元/吨；汽油97＃3500元/吨；汽油93＃3100元/吨；汽油90＃2900元/吨；柴油0＃3200元/吨；柴油-10＃3500元/吨。

Production sites: 50 ㎡-200 ㎡. For another: light oil 2,000 yuan / ton; ferrocene 20,000 / ton; DME 2,500 yuan / ton; Light EPA [0.60-0.63 density] of 2,000 yuan / ton; sodium hydroxide 2600 yuan / ton; Mercaptans 18,000 yuan / ton; xylene 4200 yuan / ton; potassium permanganate 5,000 yuan / ton; petroleum ether 3,500 yuan / ton; naphtha 2900 yuan / ton; butane 2,000 yuan / ton; acetone 4400 yuan / t; hydroquinone 18,000 yuan / ton.

生产场地：50 ㎡-200 ㎡。另供：轻质油2000元/吨；二茂铁20000元/吨；二甲醚2500元/吨；轻烃碳五[密度0.60-0.63]2000元/吨；氢氧化钠2600元/吨；硫醇18000元/吨；二甲苯4200元/吨；高锰酸钾5000元/吨；石油醚3500元/吨；石脑油2900元/吨；丁烷2000元/吨；丙酮4400元/吨；对苯二酚18000元/吨。

With peroxide value as experimental index, the oxidative stability of cold pressed oil of Xanthoceras sorbifolia Bunge seed was studied by Schaal experiment using TBHQ, PG and V as antioxidants, V and critic acid as synergists.

采用Schaal烘箱加速法，以叔丁基对苯二酚、没食子酸丙酯、生育酚V(下标 E为抗氧化剂，抗坏血酸V(下标 C和柠檬酸为增效剂，过氧化值为试验指标，研究了光线、温度等对冷榨文冠果籽油抗氧化性能的影响。

Laccase (benzenediol: oxygen oxidoreductase: EC 1.10.3.2) is a type of multi copper-containing polyphenol oxidases capable of oxidizing a wide range of polyphenols and other lignin-derived aromatic compounds, and the enzyme is involved in lignin degradation and in the development of soil humus.

漆酶(EC 1.10.3.2，对苯二酚：氧氧化还原酶)是一种含多个铜原子的多酚氧化酶，催化氧化多种芳香族化合物，在木质素矿化降解、腐殖质形成等过程中发挥重要作用。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷