The reaction conditions of synthesizing 1-methoxy-2-propanol by solid base catalyst were investigated.
考察了固体碱催化剂上2—丙基甲醚合成反应的工艺条件。
Polar reagents such as hydrofluoric acid, phosphoric acid, formic acid and 2-propanol were used as surface modification reagents.
采用了甲酸、磷酸、盐酸和弱极性试剂异丙醇作为聚砜底膜表面改性试剂。
The 1-amino-3-phenoxyl-2-propanol is prepared with phenol and epoxy chloropropane by means of KOH as catalyst and hydrazinolysis.
以苯酚、环氧氯丙烷为原料,KOH为催化剂,肼解后合成了1—氨基—3—苯氧基—2—丙醇。
Under the above-mentioned conditions, the conversion ratio for PO reached 99% and the selectivity for 1-methoxy-2-propanol reached 98%.
在此条件下反应,环氧丙烷转化率可达99%,2—羟丙基甲醚的选择性可达98%。
Threc calculating methods of dividing into liquid stratum of cyclohexane (1)-2-propanol(2)-water (3) ternary system liquid-liquid equilibrium have been introduced.
本文对环已烷(1)—异丙醇(2)—水(3)三元部分互溶体系液液平衡实测数据,用三种方法进行了分层计算。
A process for preparing 1-methoxy-2-propanol by selective ring cleavage-addition reaction of propylene oxide with MeOH in the presence of HM-9512 catalyst is described.
阐述了利用环氧丙烷和甲醇在催化剂HM-9512存在下,通过选择性开环加成制备1-甲氧基-2-丙醇的工艺过程。
IR results of pyridine adsorption reveal that supported samples have both Bronsted and Lewis acid centers, and 2-propanol dehydration is a Bronsted acid catalysed reaction.
吡啶吸附红外光谱结果显示负载样品同时具有B酸和L酸中心,异丙醇脱水催化反应发生在B酸位上。
The physicochemical properties of potato starch were studied with or without modification by hydrochloric acid in anhydrous alcohols, including methanol, ethanol, 2-propanol and 1-butanol.
本文研究了马铃薯淀粉在有机醇溶液中酸变性前后的物化性质。
The preparation process for L-2-amino propanol (AP) by reduction with potassium borohydride (PB) was improved.
对硼氢化钾还原法制取l- 2 -氨基丙醇工艺进行了改进。
RESULTS: The transdermal osmotic process fitted to a zero order kinetic mechanism. The osmotic enhencer effect of 2 propanol was listed below: 15%> 10%>5%.
结果:药物经皮渗透符合零级动力学过程,不同浓度异丙醇促渗效果为:15 %异丙醇>10 %异丙醇>5 %异丙醇。
Triisopropyl borate was synthesized with high yield from 2 propanol and boron oxide by using calcium hydride as drying agent to remove resultant water.
采用氢化钙作为脱水剂,以硼酐及异丙醇为原料合成了硼酸三异丙酯,该方法具有成本低、操作简便、条件温和、产率高的优点。
Starkrimson fruit aroma comprised butyl acetate, 3-methyl-butyl acetate, propyl acetate, ethyl acetate, 1-butanol, 1-propanol, 2-methyl-butanol and ethyl 2-methyl-butanoate.
乙酸丁酯、乙酸3 -甲基丁酯、乙酸丙酯、乙酸乙酯、1 -丙醇、1 -丁醇、2 -甲基丁醇和2 -甲基丁酸乙酯为新红星苹果果实的主要香气成分。
Starkrimson fruit aroma comprised butyl acetate, 3-methyl-butyl acetate, propyl acetate, ethyl acetate, 1-butanol, 1-propanol, 2-methyl-butanol and ethyl 2-methyl-butanoate.
乙酸丁酯、乙酸3 -甲基丁酯、乙酸丙酯、乙酸乙酯、1 -丙醇、1 -丁醇、2 -甲基丁醇和2 -甲基丁酸乙酯为新红星苹果果实的主要香气成分。
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