Impurity removal from Si by Si-Ca-Mg ternary alloying-leaching system

Fine liquor colour: how does it affect energy, capacity and sugar losses?

Sugar Industry ◽

10.36961/si16605 ◽

2015 ◽

pp. 375-378

Author(s):

Ahmed S. Vawda ◽

Emmanuel M. Sarir ◽

Carlos Andrés Donado

Keyword(s):

Energy Capacity ◽

Important Process ◽

Separation Processes ◽

Impurity Removal ◽

Process Operations ◽

Fuel Costs

Impurity removal by separation and crystallisation are the most important process operations in a refinery. This paper studies the main separation processes, namely clarification, decolourisation and crystallisation to demonstrate where poor separation contributes to excessive costs of processing. The results of various tests are analysed and conclusions are made for refiners to manage their chemical and fuel costs.

Download Full-text

Evaluation of Alternate Impurity Removal Getters - Year 2

10.2172/1490307 ◽

2016 ◽

Author(s):

David W. James ◽

Gregg A. Morgan, Jr.

Keyword(s):

Impurity Removal

Download Full-text

An investigation into potential pathways for nickel and cobalt loss during impurity removal from synthetic nickel laterite pressure acid leach solutions via partial neutralisation

Hydrometallurgy ◽

10.1016/j.hydromet.2021.105595 ◽

2021 ◽

pp. 105595

Author(s):

Nebeal Faris ◽

Jason White ◽

Flynn Magazowski ◽

Adam Fischmann ◽

Lathe A. Jones ◽

...

Keyword(s):

Nickel Laterite ◽

Impurity Removal ◽

Acid Leach

Download Full-text

Ultrasound-assisted impurity removal from petroleum coke

Separation and Purification Technology ◽

10.1016/j.seppur.2015.07.036 ◽

2015 ◽

Vol 151 ◽

pp. 251-255 ◽

Cited By ~ 11

Author(s):

Pengfei Xing ◽

Jingqiang Wang ◽

Tian Lyu ◽

Yanxin Zhuang ◽

Xinghong Du ◽

...

Keyword(s):

Petroleum Coke ◽

Impurity Removal ◽

Ultrasound Assisted

Download Full-text

Research on Impurity Removal of Low Grade Bauxite

The Minerals, Metals & Materials Series - Light Metals 2018 ◽

10.1007/978-3-319-72284-9_4 ◽

2018 ◽

pp. 23-27

Author(s):

Zhuang Li ◽

Yijun Cao ◽

Guihong Han ◽

Guixia Fan ◽

Yanfang Huang

Keyword(s):

Low Grade ◽

Impurity Removal

Download Full-text

Thermodynamic Properties of Impurity Components in Silicon-based Solutions: Influence of Interactions among Components on Impurity Removal from Silicon

Separation and Purification Reviews ◽

10.1080/15422119.2021.1986409 ◽

2021 ◽

pp. 1-16

Author(s):

Qian He ◽

Jijun Wu ◽

Fan Yang ◽

Yeqiang Zhou ◽

Kai Liu ◽

...

Keyword(s):

Thermodynamic Properties ◽

Impurity Removal ◽

Silicon Based

Download Full-text

Interfacial reactions between impurities and slag onset of Si purification by slag addition

Metallurgical Research & Technology ◽

10.1051/metal/2021096 ◽

2021 ◽

Vol 119 (1) ◽

pp. 101

Author(s):

Yaqiong Li ◽

Yunlong Yu ◽

Lifeng Zhang ◽

Zhengtao Li

Keyword(s):

Reaction Time ◽

Removal Efficiency ◽

Removal Rate ◽

Interfacial Reactions ◽

Refining Process ◽

Short Reaction Time ◽

Impurity Removal ◽

Slag Refining ◽

Al Distribution ◽

Distribution Behavior

The interfacial reactions between impurities (Al and Ti) and slag onset of Si purification by 51 mol% SiO2–34 mol% CaO–15 mol% MgO slag addition were studied to enhance impurity removal efficiency from Si. The Al distribution behavior at the Si/Slag interface was investigated; a short reaction time (10 s) resulted in the formation of successive SiO2–CaO–MgO–Al2O3 layers in the slag with a thickness of 10 µm; increasing the reaction time (60 s) resulted in the entire ternary slag being changed into SiO2–CaO–MgO–Al2O3 quaternary slag due to the diffusion of Al2O3. It was shown that the highest impurity removal rate of Al could be achieved at the onset of the slag refining process. Based on the Ti distribution at the Si/slag interface, the slag refinement with 51 mol% SiO2–34 mol% CaO–15 mol% MgO had no effect on Ti removal.

Download Full-text