Structure and cation exchange capacity evolution of Xuancheng zeolite under heat treatment;
宣城沸石热处理结构和阳离子交换容量演化
Three measuring methods of bentonite cation exchange capacity are compared and evaluated according to measuring results and process.
对比3种不同容量法测定膨润土阳离子交换容量Ccec方法,从测定结果和测定过程对方法进行评价,得出氯化铵-氢氧化铵法准确度高,方法简便;电位滴定法快速、省时、节能,两种方法适合不同领域的分析要求。
The formation and cation exchange capacity (CEC) of zeolite synthesized after alkaline activation of a Chinese fly ash, as a function of temperature, liquid/solid ratio, NaOH concentration and reaction time in closed systems were investigated.
系统研究了由粉煤灰合成沸石过程中温度、反应时间、液固比和NaOH浓度等合成条件对沸石生成及其阳离子交换容量(CEC,CationExchangeCapacity)的影响。
In this paper,the research status quo of the methods for determination of layer charge density were presented;the theories and measurement procedure of alkylammonium method,structural formulae method,cation exchange capacity method and methylene blue method were introduced in detail; advantages and disadvantages of each method were compared.
本文系统介绍了国内外对蒙脱石层电荷测定方法的研究现状,详细阐述了烷基铵法、结构式推算法、阳离子交换容量法、亚甲基蓝法测定层电荷的原理以及测试程序,分析了不同测试方法的优缺点。
APPLICATION OF SOIL CEC TO EVALUATION OF SOIL QUALITY IN SHANGHAI;
土壤阳离子交换量在上海城市土壤质量评价中的应用
Study On Relationship Between Organic Matter,Soil Fractions and CEC in Qinghai Soil;
青海省土壤阳离子交换量与有机质和机械组成关系的研究
Distribution characteristics of soil pH,CEC and organic matter in a small watershed of the Loess Plateau
黄土高原小流域土壤pH、阳离子交换量和有机质分布特征
Influence of introducing method and amount of Ca~(2+) on the swelling capacity and cation exchange capacity of montmorillonite;
Ca~(2+)引入方式及用量对蒙脱石的膨胀容及阳离子交换量的影响
To study the effects of pyrolytic temperature on the cation exchange capacity(CEC) of the crop-residue-derived black carbon(BC) and the Pb2+ and Cd2+ sorption on BC,the BC was isolated from the charred wheat residues by pyrolyzing the wheat residues under the oxygen-limited conditions for 24 h at 150,250,300,400 and 500 ℃ respectively.
为探讨热解温度对秸杆燃烧物提取黑碳阳离子交换量和重金属吸附量的影响,在150～500℃范围24h热解小麦秸秆,提取黑碳,测定黑碳阳离子交换量(CEC)和黑碳吸附铅(Pb2+)和镉(Cd2+)量。
The results show that the imperfect saturation increases the cementation factor m and decreases the saturation index n,so that the saturation degree must be inspected and corrected;shale effect scatters the data measured away from Archie formulae,decrease both of m and n,however the cation exchange capacity Q_V correction will improve the correlation betwee.
结果表明,岩心饱和程度不足会使胶结指数m值变大,孔隙度指数n值变小,为此必须检验岩心饱和程度并予以校正;泥质影响使测量数据分散,使m、n值均偏小,经阳离子交换量QV校正可改善与Archie公式的相关性;高饱和水矿化度使m、n值都增大,虽使泥质影响变小,但QV校正仍属必要;高温高压使m值增大,n值减小;油驱后的n值比气驱后大。
By analyzing the core electrical properties,it is found that m and n in Archie\'s equation are mainly influenced by cation exchange capacity(QV) when cation additional conductivity is high,and exponential with QV;They are mainly influenced by pore structures when the cation additional conductivity is low,and logarithmic with K/.
通过岩电分析可知,当阳离子交换附加导电性较强时,阿尔奇公式中的m、n值主要受阳离子交换量(QV)影响,与QV呈指数关系;当阳离子交换附加导电性较弱时,m、n值主要受孔隙结构影响,与K/呈对数关系。
cation exchange capacity of clay
粘土阳离子交换容量
Study on Cation- exchange Capacity of Core from Sandstone Uranium Deposits
砂岩铀矿层矿石阳离子交换容量研究
A Method of Rapidly Determining Cationic Exchange Capacity and Extractible Cations
膨润土阳离子交换容量和交换性阳离子的测定方法研究
RESEARCH ON THE AFFECTING FACTORS OF CATION EXCHANGING CAPACITY OF PHLOGOPITE-VERMICULITE INTERSTRATIFIED MINERAL
金云母-蛭石间层矿物阳离子交换容量的影响因素研究
Determination for exchange capacity of cation exchange resins
GB/T8144-1987阳离子交换树脂交换容量测定方法
Cation exchange capacity generally increases with an increase in broken bonds.
通常阳离子交换量随破裂增加而增大。
Determination for exchange capacity of anion exchange resins
GB/T5760-1986阴离子交换树脂交换容量测定方法
exchangeable cation percentage
交换性阳离子百分率
strong-acid cation exchange fibre
强酸性阳离子交换纤维
storng-acid cation exchange resin
强酸性阳离子交换树脂
sulfonic acid ion exchange resin
磺酸型阳离子交换树酯
carboxyl type cation exchange resi
羧基型阳离子交换树脂
cation exchange resin catalyst
阳离子交换树脂催化剂
sulfonie acid ion exchange resin
磺酸型阳离子交换树脂
strongly acidic cation-exchange
强酸型阳离子交换树脂
carboxylic acid type cation exchange fibre
羧酸型阳离子交换纤维
weak acid cation exchanger
弱酸性阳离子交换剂
base-exchanging compounds
碱［阳离子］交换化合物