查询词典 abietic

About 90%of RFAs in DCS of deinked pulps were resin acids,among which DHA and abietic acid were the predominant ones.

脱墨浆DCS中树脂酸占脂肪酸和树脂酸总量的近90%，主要是脱氢枞酸和枞酸。

RFAs in the first refiner pulps were not dispersed into the water phase proportionally,and much smaller amount of abietic acid was released.

结果发现，木片挤压机的挤压作用对抽出物组分几乎没有选择性，基本按照原木片中抽出物的比例释放出来。

The aim of this thesis is to synthesize some new chiral quaternary ammonium salts and bis-quaternary ammonium salts from the popular material------Chloramphenicoland abietic acid, and then we used these chiral quaternary ammonium salts in some substitution reactions and addition reactions in order to research their catalytic action and asymmetric induction.

本文利用廉价易得的手性物质——氯霉素和去氢枞酸为初始原料，合成了几种新的季铵盐类手性相转移催化剂，扩大了手性相转移催化剂的来源，并把它们应用于取代反应和加成反应，以探讨其催化机理和不对称诱导效应。

Rosin acids ; isomerization ; abietic acid ; orthogonal experiment

松香树脂酸；异构；枞酸；正交实验

When the reaction temperatures were 303.15, 308.15, 313.15, 318.15, 323.15 and 328.15 K, respectively, the apparent reaction rate constants of abietic acid were 0.0036, 0.0041, 0.0062, 0.0087, 0.011 and 0.0157 min^(-1), respectively. Its reaction activation energy was 50.29 kJ/mol.

枞酸的氧化反应温度为30，35，40，45，50和55℃时，表观速率常数分别为0.0036，0.0041，0.0062，0.0087，0.011和0.0157min^(-1)，表观反应活化能E为50.29kJ/mol。

The asphalt concrete track resistant modifying agent is characterized in that the asphalt concrete track resistant modifying agent consists of raw materials with the weight portion ration of 65 to 80 portions of low density polyethylene, 10 to 30 portions of anchoring agent, and 0 to 5 portions of activated rubber powder. The anchoring agent is petroleum resin or abietic resin.

沥青混凝土抗车辙改性剂，其特征在于它由以下原料组成，各原料质量份配比为：再生低密度聚乙烯65～80份，增粘剂10～30份，活化橡胶粉0～5份；所述的增粘剂为石油树脂或松香树脂。

When the reaction temperatures were 303.15, 308.15, 313.15, 318.15, 323.15 and 328.15 K, respectively, the apparent reaction rate constants of abietic acid were 0.0036, 0.0041, 0.0062, 0.0087, 0.011 and 0.0157 min-1, respectively.

松香的氧化反应温度为35， 40和45 ℃时，表观速率常数分别为0.0009， 0.0015和0.0025 min-1 ，表观反应活化能 E a为80.2 kJ/mol。

Adding antioxidants MBP, FMH, DBH, DSB3 and DSB6 could reduce the oxidation rate of abietic acid when the reaction temperatures were 35, 40, 45, 50, 55℃The MBP, DBH, and DSB6 had remarkable antioxidative activities at 35℃, and their AO were 109.92, 50.93 and 209.84 respectively.

当反应温度为35，40，45，50，55℃时，5种抗氧剂都表现出不同程度的抗氧化能力，其中MBP，DBH，DSB6抗氧剂的抗氧化能力显著，在35℃下其抗氧化值AO分别是109.92，50.93，209.84。

The optimum reaction conditions were as follows: rosin 5 g, m: in: m 1:2:2, palladium chloride 0.090 %, n: n1:10, hydrogen pressure 5 MPa, reaction temperature 160℃ reaction time 3 h, mass fraction of abietic acid could be under 1%, mass fraction of dehydroabietic acid was 5.6%, which conforms to the national standards. The regeneration of catalyst was investigated. After cycling five times, the product of hydrogenated rosin still conforms to the national standards without any treatment of catalyst.

在松香5g、m：m：m1：2：2、氯化钯0.090%、n：nl：10、氢气压力5MPa，反应温度160℃，反应时间3h的较佳工艺条件下，产物氢化松香中极酸的质量分数小于1%，去氢枞酸的质量分数5.6%，符合GB/T 14020-2006国家标准；并对催化剂的重复使用性能进行了考察，催化剂相不经过处理直接重复使用5次后，产品氢化松香仍然符合国家标准中关于枞酸和去氢枞酸的指标要求。

It was found that ARA was composed of esterification products of (2-HEA)-ester with pimaric acid, dehydroabietic acid, abietic acid and two isomers of acrylpimaric acid. ARA is a good crosslinking agent which can copolymerize with most vinyl monomers. The properties of solvent-resistance and heat resistance of the copolymer were improved considerably by the use of ARA.

实验结果表明：ARA主要由海松酸、脱氢枞酸、枞酸和丙烯海松酸的二种异构体的丙烯酸－2-羟基乙基酯的酯化产物组成，ARA是一种良好的交联剂，可与大多数乙烯基单体共聚合，其与MMA的共聚物的耐溶剂性和耐热性均得到了较大幅度的提高。

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。