以杉木屑为原料制备木质纤维素,采用静态吸附、蒸馏水和80%乙醇分段洗脱等实验,研究其对茶儿茶素类及咖啡因选择性吸附作用。
Lignocellulose was prepared from cedar sawdust and used to isolate caffeine and tea catechins from tea extract by static adsorption and gradient elution using water and 80% ethanol.
工业用途:溶于水、碱水溶液、氨和纤维素溶液,不溶于有机溶液、矿物油的无色无定型物。
Industrial application: soluble in water, aqueous alkali, ammonia and cellulose solution, colorless and insoluble in organic solution, mineral oil amorphous substance.
介绍了超临界水的物理化学性质以及它在纤维素水解、废水处理和超细造粒等方面的作用。
This paper introduces the physical and chemical characteristics of supercritical water, and its use of cellulose hydrolysis, supercritical water oxidation and superfine granulation.
本文研制的醋酸丁酸纤维素(以下简称CAB)皮革光亮剂由CAB,增塑树脂、溶剂、乳化剂等组成,包括水乳型和溶剂型产品。
Cellulose acetate butyrate (CAB) leather glossy agent is comprised of CAB, plastic resin, solvents, emulsifier, etc. The products are available in aqueous and solvent forms.
当这种非水溶剂是用来干管委会生产的纤维素,纤维素干可能有弹性的结构和可能的弹性性质。
When such non-aqueous solvents are used to dry the CMC-produced cellulose, the dried cellulose may have a resilient structure and possibly an elastic nature.
纤维素醚和熟石灰粉都能改善砂浆的泌水,考虑到砂浆的流动性和强度,选择熟石灰的掺量2%;
HPMC and hydrated lime powder could improve the bleeding, taking into account the fluidity and strength choose the content of hydrated lime is 2%.
本文选择资源丰富,用途广泛的中草药甘草和纤维素酶为研究对象,采用双水相萃取技术分离提取。
Herb medicine glycyrrhiza and cellulase whose are abundant and are wide range of application by the aqueous two-phase extraction was studied.
在KOH催化条件下,还原性气氛有利于纤维素水热液化转化率及液相产物的产率和品质的提高。
By adding KOH as catalyst, the reducing atmosphere was favorable to improve the conversion of collusion and the yield of liquid products.
在KOH催化条件下,还原性气氛有利于纤维素水热液化转化率及液相产物的产率和品质的提高。
By adding KOH as catalyst, the reducing atmosphere was favorable to improve the conversion of collusion and the yield of liquid products.
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