A high efficient mixed paraffin remover was prepared with benzene, mutual solvent a, mutual solvent b, and a synergic agent as materials.
针对我国油井结蜡严重的现象，以苯、互溶剂a、互溶剂b和协同剂为原料，制备了一种高效混合清蜡剂。
Theoretical and experimental basis of choosing solvent for refining anthracene is discussed and the method of improving anthracene yield by solvent DMF and solvent a is studied in this paper.
本文论述了精蒽提纯溶剂选择的理论根据和试验依据，研究了以DMF及溶剂A为溶剂提高精蒽收率的方法。
When the aqueous solvent (solvent a) is cleaned up in terms of an on-line precolumn, the purity of the organic solvent (solvent b) can be tested according to the chromatogram of the blank gradient.
当含水溶剂通过预柱在线净化后，根据空白梯度色谱图可测试有机溶剂的纯度。
The optimum formulation of the remover was determined as follow:benzene 45%(vol), mutual solvent A 5%(vol), mutual solvent B 5%(vol), and the synergic agent 45%(vol).
确定了混合清蜡剂的最佳配方：苯加量（体积分数，下同）45%，协同剂加量45%，互溶剂A加量5%，互溶剂B加量5%。
Applied some kinds of carboxylic acid as solvent, a series of malachite green-boric acid reversible thermochromic paints were prepared by solid phase synthesis method.
选用羧酸类溶剂，采用固相法合成了孔雀石绿-硼酸系列可逆热致变色材料。
To treat tetramethyl ammonium chloride with H2SO4 in organic solvent, a precipitate is produced. A white crystallizing solid TMAHS is prepared after filtrating, washing and drying.
以H_2SO_4处理四甲基氯化铵的有机溶液，立即生成沉淀，经过滤、洗涤、干燥后，得到白色结晶状固体——TMAHS。
For solving the problems of soybean oil extraction using 95% ethanol as solvent, a new oilseed pre-treatment method was proposed.
为解决95%乙醇浸出大豆油工艺中的几个难点，探索了新的油料预处理方法。
For solving the problems of soybean oil extraction using 95% ethanol as solvent, a new oilseed pre-treatment method was proposed.
为解决95%乙醇浸出大豆油工艺中的几个难点，探索了新的油料预处理方法。
应用推荐