查询词典 resin alcohol

Dibutyl succinate was synthesized catalyzed by a strong acid cation exchange resin from succinic acid and n-butyl alcohol.

用强酸性阳离子交换树脂催化丁二酸和正丁醇的酯化反应，合成了丁二酸二丁酯。

The extracts of water and alcohol were separated by ion exchange resin. The eluates of neutral solution were the most effective against hydroxyl radicals and the highest rate of inhibiting hydroxyl radicals was 81%. The eluates of basic solution were also effective, the inhibit rate of which was 60%.

将发酵灵芝粉的水和醇提取物上离子交换树脂柱，依次用酸性、中性、碱性淋洗液洗脱分组，发现中性洗脱部分对羟基自由基抑制作用最强，抑制率最高可达81％；碱性洗脱部分亦具有抑制羟基自由基的效果；酸性洗脱部分抑制羟基自由基的作用不强，且占很少比例。

The coarse flavone is extracted from luohanguo leaves by boiling water, collected by resin adsorption, elutriated by 75% ethanol. The refined flavone is obtained by absolute alcohol purification.

罗汉果叶通过蒸馏水煮沸，经大孔吸附树脂柱吸附，75%的乙醇洗脱，旋干，得罗汉果叶子粗黄酮，再用无水酒精精制，得精制黄酮。

"Forest chemical products\",\"林产化学产品制造业\",\Includes tanning extracts, resin, lac, turpentine oil, pine tar, wood hydrolysis alcohol, active carbon, camphor, borneol, cork producers.

&，\&包括栲胶，松香，紫胶，松节油，松焦油，木材水解酒精，活性炭，樟脑，冰片，软木制品等的生产\

With a purpose of making comprehensive use of heavy residual oil, condensed polynuclear aromatic resin is prepared using petroleum asphalt as raw material and terephthalyl alcohol as cross-linking agent under the catalysis of concentrated sulfuric acid or p-toluensulfonic acid.

从综合利用重质油出发，以石油沥青为单体，对苯二甲醇为交联剂，在浓硫酸或对甲苯磺酸催化下合成了缩合多环多核芳香烃树脂。

The paper studied the preparation of modified urea-formaldehyde resin adhesive with polyvinyl alcohol and melamine.

研究了聚乙烯醇和三聚氰胺改性脲醛树脂胶粘剂的制备工艺和配方。

Alcohol resin, alkyd type paint to use organic solvents such as turpentine, pine water, gasoline, acetone, ethyl ether and other unpleasant smells.

醇脂、醇酸类漆使用的有机溶剂如松节油、松节水、汽油、丙酮、乙醚等气味难闻。

Product quality assurance, the performance of a non-shift, high elasticity, non-toxic, cold resistance (+80 ℃-40 ℃), and other characteristics of their material composition for alcohol acid resin.

产品质量保证，其性能具有非移性，高弹力，无毒，耐寒性（+80℃-40℃）等特性；其材质成份为酸醇树脂。

The invention is characterized in that the carrier is produced through the reaction between halogen acetylized crosslinked polystyrene resin and hydroxybenzyl alcohol.

本发明的特征是：该载体由卤乙酰化聚苯乙烯树脂与对羟基苯甲醇反应制得。

The very good method to analyze the structural change of reaction process of polyvinyl alcohol modified UF resin by the traditional process alkali-acid-alkali is 13C-NMR,and which extrapolate a possibly reaction.

通过13C-NMR解析了采用传统工艺合成聚乙烯醇改性脲醛树脂反应过程中的结构变化，并推测其反应。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。