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1)  Grade distribution
品位分布
2)  copper grade distribution
铜品位分布
1.
on the copper grade distribution of the study.
运用地质统计学的方法对普朗矿区铜品位分布情况进行了研究,建立了铜品位变异规律的数学模型,分别得到了矿体厚度、倾向和走向3个方向的变异函数,该函数呈几何异向性,比值为1:1。
3)  reserve-grade distribution
储量-品位分布
4)  product distribution
产品分布
1.
Influence of particle size distribution of equilibrium catalyst for catalytic cracking process on product distribution;
催化裂化平衡剂粒度分布对产品分布的影响
2.
The results show that Z-18 retarder activator could keep the activity of the catalyst effectively,reduce the yield of coke,and improve the product distribution.
结果表明,Z-18抗焦活化剂能有效地维持催化剂的活性,明显减少焦炭生成,改善产品分布。
3.
The run results of CDCM catalyst in 800 kt·a-1 two-stage riser heavy oil fluid catalytic cracking unit(TSRFCC) in Yumen indicated that the catalyst exhibited high activity,good selectivity to target product,strong heavy oil cracking capability and excellent tolerance to heavy metals,with remarkably improved product distribution and product quality.
能显著改善产品分布和提高产品质量,在操作条件基本不变的情况下,液态烃收率和总液收分别可提高2。
5)  product slate
产品分布
1.
The sulfur removal rate of the assistant catalysts applied in domestic FCC units and their impact on product slates are highlighted.
重点介绍了目前催化裂化过程中使用的降硫助剂的脱硫率及其对催化裂化产品分布的影响等。
2.
The tests reveal that the TSRFCC- I process is very effective in enhancing conversion and improving product slates and gasoline quality while having tackled many problems associated with blending heavy coker gas oil into conventional FCC feed due to the catalyst relay, staged reaction, shorter reaction time and greater catalyst to oil r.
将两段提升管催化裂化(TSRFCC)新技术应用于焦化蜡油的加工,设计出了五种TSRFCC-Ⅰ工艺的进料方案,在XTL-5小型提升管催化裂化试验装置上对这些方案逐一进行了考察,结果表明TSRFCC-Ⅰ型工艺由于其催化剂接力、分段反应、短反应时间和大剂油比等鲜明的技术特点,使其在处理掺兑焦化蜡油的原料时,能在提高转化深度的同时改善产品分布和汽油质量,解决传统催化裂化装置因为掺炼焦化蜡油而带来的诸多难题。
3.
Influence of dry gas and its main component gases (such as H2, C2H4, CH4, and C2H6) on RFCC product slate was explored at a bench scale fixed bed under the operation conditions of commercial unit.
在小型固定流化床上采用工业装置的操作条件,考察了干气及其主要组分气体(如氢、乙烯、甲烷和乙烷等)作流化气对重油催化裂化产品分布的影响。
6)  quality distribution in space
品质分布
补充资料:边际品位
分子式:
CAS号:

性质:又称边际品位。是矿产工业指标的一项内容,指在矿产储量计算中圈定矿体时对单个矿样中有用组分含量的最低要求,以此作为划分矿与非矿(围岩或夹石)界线的标准。边界品位应高于选矿后的尾矿中有用组分的含量,并且随着科学技术的进步和市场的需求而变化。

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