...报导了一种有机胺盐类缩合催化剂,用于羟醛缩合制1,3 丙二醇的过程。 阴离子交换树脂是新兴的碱性催化剂。传统的碱金属氢氧化物溶液(如nAOH、KOH)作为催化剂,存在催化剂难于回收,容易腐蚀设备,生成液需要中和分离,反应工艺复杂、生产周期长等缺点,而阴离子交换树脂在保持催...
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Particles were stable in NaOH saturating water solvent.
共聚物微粒在饱和氢氧化钠水溶液中能长期稳定不沉降。
参考来源 - 醋酸为溶剂的沉淀聚合法合成单分散交联功能聚二乙烯基苯微球的研究The results showed that the pretreatment of acid/alkali can both enhance suger content of samples,and the effection of vitriol pretreatment were more evident than NaOH;the best concentration of disposal was 0.3%,the time was 6-8 hour.
结果表明,酸、碱预处理均能使样品中含糖量升高,并且硫酸预处理的效果高于氢氧化钠;硫酸的最佳处理浓度为0.3%、时间为6-8h。
参考来源 - 预处理对玉米秸秆发酵产氢的影响研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Sisal fibre material managed by steam explosion and then NaOH pulping.
通过对剑麻纤维原料爆破法处理，继而进行烧碱法化学蒸煮。
Sisal fibre raw material managed by steam explosion and then NaOH pulping.
摘要通过对剑麻纤维原料爆破法处理，继而进行烧碱法化学蒸煮。
For used oil, you should do a titration to determine the correct amount of NaOH to use.
使用过的油需按要做滴定法来确定正确的氢氧化纳使用量。
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