1) high acid value
酸值高
1.
is the key to solve the problem of rolling oil with high acid value.
冷轧再生轧制油酸值高主要原因是由于污染轧制油中含有水等杂质,去除水及杂质污染源是解决再生轧制油酸值高的关键,并利用活性低温氧化铝吸附剂解决酸值过高的再生轧制油。
2) acid value
酸值
1.
Preparation of biodiesel by a two-step catalyzed method from waste cooking oil with high acid value;
两步法利用高酸值废油脂生产生物柴油
2.
Influence factors of high acid value in the preparation of rice bran oil;
米糠制油生产中酸值升高影响因素的研究
3.
Discussion on testing method of PTA acid value;
PTA酸值测试方法的探讨
3) acidity
酸值
1.
Based on the problems of low viscosity index and the acidity increasing in the lubricating base oil,it has been found that the unstable quality of the crude oil was the root cause to effect on the quality of the base oil by analysis for long time;the low viscosity index and the higher acidity were resulted from the low paraffinicity and the high content of aromatics,cyclane.
针对润滑油基础油相继出现的黏度指数降低、酸值升高等问题,跟踪分析了润滑油基础油质量,认为原油的变化是造成润滑油基础油质量变化的根本原因;基础油组成中烷烃含量降低,芳烃和环烷烃含量上升是其酸值上升和黏度指数下降的内在原因。
2.
The items of saponification numbers and acidity of the synthetic beeswax made from catalyze-oxidation of paraffin were tested and discussed by four standard-testing methods.
采用4种标准测试方法,对由石蜡催化氧化制取人造蜂蜡的皂化值和酸值进行了测定和讨论。
3.
Potentiometric determination of the acidity of petroleum products in non-aqueous matrix is reported.
本文建立了非水介质中石油产品酸值测定的电位滴定法,方法快速简单,适用于不同油品酸值的测定。
4) acid number
酸值
1.
Introduce the composition of naphthenic acid and two methods about the determination of acid number.
介绍了石油酸的组成及国内测定原油酸值的两种方法,对采用不同方法测定原油酸值产生的差异进行分析,建议采用电位滴定法测定原油的酸值。
2.
It is researched the linear sweep Voltammetry(LSV)to determinate acid number of lubricating oil,the result exhibits the repeatability and reappearance ability of linear sweep Voltammetry can satisfy the requirements of GB/T264.
研究了用线性伏安法测定润滑油的酸值,结果表明,线性伏安法的重复性和再现性能够满足GB/T264方法的要求。
3.
The amidation reaction was carried out at 170 ℃ for 150 min to give the prepolymer of polyamide with acid number of 37.
研究了反应温度、反应时间对产物酸值、胺值和阳离子度的影响。
5) high acid value
高酸值
1.
Advances in technology for preparing biodiesel from waste oil with high acid value;
高酸值废油脂制备生物柴油工艺研究进展
2.
Study on reducing acid value of biodiesel feedstock with high acid value;
高酸值生物柴油原料降酸的研究
3.
Design of atmospheric tower for refining crude oil with high sulfur and high acid value;
炼制高硫、高酸值原油常压塔的设计
6) fatty acid value
脂肪酸值
1.
The differences between acidity and fatty acid value of grain;
粮食酸度与脂肪酸值之区别
2.
Fatty acid value is one of sensitive indexes of grain quality.
脂肪酸值是粮食品质劣变的灵敏指标之一。
3.
This study established determination of paddy fatty acid value with instrument.
本研究建立了稻米中脂肪酸值的脂肪酸值仪测定方法。
参考词条
补充资料：酸值
分子式：
CAS号：
性质：表示油脂类、聚酯类、石蜡等有机物质中含有游离酸的一种指标。具体的是指在试验条件下，中和1g试样所需氢氧化钾的mg值。用酸碱滴定法测定，常选用酚酞指示剂确定其终点。
CAS号：
性质：表示油脂类、聚酯类、石蜡等有机物质中含有游离酸的一种指标。具体的是指在试验条件下，中和1g试样所需氢氧化钾的mg值。用酸碱滴定法测定，常选用酚酞指示剂确定其终点。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。