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- Preparing fatty acid methyl ester was achieved by reap oil ester exchange reaction by using new type solid alkali catalyst(LDH/LDO). 采用新型固体碱催化剂LDH/LDO进行菜油酯交换反应制备脂肪酸甲酯;产率达98.;5%25以上。
- The study shows that the alkali slag cement ground from the mixture of slag, solid alkali ex citant and additive in certain proportion can be above 60 Mpa for its 28 - day strength and of normal setting time. 研究表明:将矿渣、固体碱性激发剂、外加剂三种原料按一定配比混合入唐进行粉磨,制备得到的减矿渣水泥28d强度达到60MPa以上,凝结时间正常;
- Preparing fatty acid methyl ester was achieved by reap oil ester exchange reaction by using new type solid alkali catalyst(LDH/LDO).The yield was over 98.5%and the operation simple. 采用新型固体碱催化剂LDH/LDO进行菜油酯交换反应制备脂肪酸甲酯,产率达98.;5%25以上。
- The method which using solid alkali as catalyst to prepare the polyethylene glycol ester of fatty acids by ester exchange reaction of fatty acid esters and polyethylene glycol is proposed. 提出采用固体碱为催化剂进行脂肪酸酯类化合物与聚乙二醇酯交换反应来制备聚乙二醇脂肪酸酯基的方法。
- Abstract: A heterogeneous catalytic system for methylolation of alkali lignin was constituted of tetrahydrofuran containing purified alkali lignin and solid alkali catalyst with special structure . 文摘:将合成出的具有特定结构的复合型固体碱催化剂,与溶有纯化碱木素的四氢呋喃建立起多相催化体系,对碱木素进行了多相催化羟甲基化作用。
- A heterogeneous catalytic system for methylolation of alkali lignin was constituted of tetrahydrofuran containing purified alkali lignin and solid alkali catalyst with special structure . 将合成出的具有特定结构的复合型固体碱催化剂,与溶有纯化碱木素的四氢呋喃建立起多相催化体系,对碱木素进行了多相催化羟甲基化作用。
- Preparing fatty acid methyl ester was achieved by reap oil ester exchange reaction by using new type solid alkali catalyst(LDH/LDO).The yield was over 98.5% and the operation simple. 采用新型固体碱催化剂LDH/LDO进行菜油酯交换反应制备脂肪酸甲酯;产率达98.;5%25以上。
- This kind of soil contains much alkali. 这种土壤含碱丰富。
- Preparation of Alkali-Slag-High Lime Fly Ash Cement Excited by Solid Alkali 固体碱激发制备碱-矿渣-高钙粉煤灰水泥的研究
- Clean Synthesis of Ethyl Methyl Carbonate over Solid Alkali Catalysts 固体碱催化剂上碳酸甲乙酯的洁净合成
- Cheese is a solid; milk is a liquid. 乾酪是固体,奶是液体。
- Solid fuel motors are coming into use. 固体燃料马达即将开始使用。
- The country was solid for peace. 全国上下都希望和平。
- Water becomes solid when it freezes. 水结冰时便变成固体。
- The miners were solid on this issue. 矿工们在这件事上是一条心的。
- Matter can exist as a solid, liquid, or gas. 物体存在的形态有固体,液体,气体。
- There was a solid vote in favour of the proposal. 提案获全体一致通过。
- When water freezes, it becomes solid. 水结冰时变成固体。
- The students are learning solid geometry. 这些学生正在学习立体几何学。
- These glaciers are beds of solid ice. 这些冰河由一层层坚冰形成。
