The experiments show that the normal pressure two-section acid hydrolysis is obviously superior to concentrated acid hydrolysis.
结果显示常压两段酸水解工艺的效果明显优于浓酸水解。
The main equipment such as stainless steel converter, fire tube boiler, main blower and concentrated acid pumps were made at home.
主要设备，如不锈钢转化器、火管锅炉、主鼓风机、浓硫酸泵等均为国产。
The acid stocking unit is used to mix water and concentrated acid in order to maintain the acidity of the detergent throughout the process of cleaning.
酸性溶液存贮单元是用以将水和酸性浓缩液混合至固定浓度并在整个清洗循环中保持于此浓度。
If accidentally stained with paint, you can use gasoline cleaning, attention: do not spray concentrated acid, strong alkali and other strong corrosive substances.
如不慎沾染油漆，可以使用汽油清洗，注意：请勿喷洒浓酸浓碱等强腐性物品。
The PCB wastewater of Dajin Electronic Co. , Ltd is divided into washing wastewater, organic wastewater with high concentration, complexed wastewater, concentrated acid waste liquor etc.
本文介绍的达进电子有限公司PCB废水分为：清洗废水、高浓有机废水、络合废水、浓酸废液等废水。
Hydrolysis is an important step for bioconversion of woody biomass to ethanol. Hydrolysis technology includes dilute acid hydrolysis, concentrated acid hydrolysis and enzymatic hydrolysis.
水解是利用木质生物资源以生物转化法制取乙醇的重要步骤，水解技术主要包括稀酸水解、浓酸水解和酶水解。
When TTA is used to extract zirconium in uranium, the combination of zirconium and TTA is very strong, the concentrated acid of nitric acid and hydrochloric acid can not destroy their combination.
用TTA萃取分离铀、锆时，TTA对锆的螯合作用很强，硝酸和盐酸的浓酸溶液并不能破坏它们之间的整合，即对锆的反萃取非常困难。
The application and research of concentrated lactic acid bacteria starter culture were summarized, with the analysis for different processing methods.
总结了浓缩乳酸菌发酵的应用及研究概况，并对不同的加工方法加以分析。
The catalytic stability and activity of supported palladium in hydrodechlorination were improved when the activated carbon supports were pretreated with concentrated nitric acid.
活性炭载体经浓硝酸氧化处理后能明显提高负载型钯催化剂的催化活性和催化稳定性。
The property of concentrated MAP slurry, which is made from wet phosphoric acid and mid grade phosphate rock, is studied.
研究了中品位磷矿湿法磷制得的浓缩磷铵料浆进行氨二次中和后的特性。
After acid has been concentrated phosphoric acid concentration.
稀酸经过浓缩得到浓磷酸。
The resulting solution was cooled on an ice bath and 130 ml. of concentrated hydrochloric acid was added drop wise.
将得到的溶液在冰水中冷却，并将130毫升浓硫酸逐滴滴入。
By the use of the new nitrating agent, the use of concentrated sulfuric acid was avoided and the reaction was environmental friendly with high atom economy.
该方法通过改变硝化剂，不仅成功地避免了浓硫酸的使用，而且提高了原子经济性，具有良好的环境效益。
Two processes with concentrated sulfuric acid recently appeared are reviewed.
对新近出现的两个浓硫酸水解工艺进行述评。
White crystal or offwhite powder, undissolving in water or alcohol, dissolving in concentrated sulphuric acid or hydrochloric acid or ammonia or potassium iodide.
白色结晶或灰白色粉末，见光易分解变成棕黄色。不溶于水和乙醇。溶于浓硫酸和盐酸，亦溶于氨水、碘化钾。
To analyze the status of supply & demand, price and imports & exports of Concentrated nitric acid.
分析浓硝酸的市场供需情况、价格及进出口情况。
Thermal and thermo-oxidative degradation of chitin with ammonium nitrate, ammonium sulfate and concentrated sulfuric acid were studied.
讨论了硝酸铵、硫酸铵和浓硫酸对自制甲壳素热降解和热氧化降解过程的影响。
Add 5 ml. concentrated sulphuric acid to 100 ml. water sample and shake well.
把大约5亳升的浓硫酸加进100亳升的水样本中，混匀。
The soluble multi walled carbon nanotube (MWNT) is prepared by heating the mixture of original MWNT with concentrated nitric acid.
用加热多壁碳管与浓硝酸混合物的方法制备了可溶性的多壁碳管。
After concentrated phosphoric acid to be concentrated.
再经过浓缩得到浓磷酸。
Preparation of methyl acetate from methanol and acetic acid by reactive rectification was investigated with concentrated sulfuric acid as catalyst.
在中试反应精馏塔中以浓硫酸为催化剂进行了醋酸与甲醇反应制备醋酸甲酯的试验。
Another part of limpid phosphoric acid after removing subsiding sludge was concentrated and neutralized to produce granular DAP.
另一部分沉出淤渣的清澈磷酸经浓缩后再中和制磷酸二铵。
An acid solution is concentrated when it has very much acid in it.
当酸性溶液里含有很多酸时，它就被浓缩了。
Compared with conventional concentrated sulfuric acid catalyst, CC-1 featured much higher selectivity and easier operation.
与传统的浓硫酸催化剂相比，CC - 1催化剂具有更优异的选择性，操作更简便。
Compared with conventional concentrated sulfuric acid catalyst, CC-1 featured much higher selectivity and easier operation.
与传统的浓硫酸催化剂相比，CC - 1催化剂具有更优异的选择性，操作更简便。
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