scholarly journals Literature Review and Thermodynamic Modelling of Roasting Processes for Lithium Extraction from Spodumene

Metals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1312
Author(s):  
Allen Yushark Fosu ◽  
Ndue Kanari ◽  
James Vaughan ◽  
Alexandre Chagnes

This review adds to the public domain literature on the extraction of lithium from mineral ores. The focus is on the pyrometallurgical pre-treatment of spodumene. Information on the phase transformation from α to β, the heat treatment methods as well as the behavior of various compounds in the roasting processes are evaluated. Insight into the chemical thermodynamics of the baking process is evaluated using HSC Chemistry software up to 1200 °C. It was observed that the alkaline, sulfation, chlorination (using Cl2 and CaCl2), carbonizing (to form Li2CO3) and fluorination processes were feasible either throughout or at a point within the temperature range considered. Chlorination using KCl and carbonizing to form Li2O are the processes found to be nonspontaneous throughout the temperatures considered.

2020 ◽  
Vol 53 (3) ◽  
pp. 505-509
Author(s):  
Anne E. Boustead ◽  
Trey Herr

ABSTRACTAlthough information made public after a data breach can provide insight into difficult research questions, use of these data raises ethical questions not directly addressed by current ethical guidelines. This article develops a framework for identifying and managing risks to human subjects when conducting research involving leaked data. We contend that researchers who seek to use leaked data should identify and address ethical challenges by considering the process through which the data were originally released into the public domain.


2021 ◽  
Vol 3 (1) ◽  
pp. 23-39
Author(s):  
Inten Meutia ◽  
Zulnaidi Yaacob ◽  
Shelly F. Kartasari

This study aims to provide an extensive overview of the current state of sustainability reporting through the review studies on sustainability reports (SR) in the accounting literature for the period 2015–2020. A structured literature review (SLR) methodology is used to investigate how the SR literature develops and focuses. The study uses keywords such as “sustainability report” and “sustainability reporting” to identify studies that are relevant to a given topic. A total of 44 published studies were found. This study identifies the main directions of SR research in the 2015–2020 period and discusses several important aspects of research, namely methodology, research methods, and the theory used. To enrich the results, this study defines the scope, country of research, topics and sectors studied. The study provides insight into future SR research used by researchers to develop SR research. Several things are proposed that can be used as a guide for future SR research, such as sustainability in SMEs and the public sector. Ensuring sustainability is one of the research topics that can be a direction for researchers in the future. Theories such as contingency and source credibility can be an alternative to explaining the reality of sustainability reporting.


2017 ◽  
Vol 33 (1-2) ◽  
pp. 203-231
Author(s):  
Antonio Terrone
Keyword(s):  

The study of Buddhist texts can inform us of the way scriptures were composed, as well as illuminate the reasons behind their production. This study examines the phenomenon of borrowing and reusing portions of texts without attributing them to their ‘legitimate authors’ within the Buddhist world of contemporary Tibet. It shows that not only is such a practice not at all infrequent and is often socially accepted, but that it is used in this case as a platform to advance specific claims and promote an explicit agenda. Therefore, rather than considering these as instances of plagiarism, this essay looks at the practice of copying and borrowing as an exercise in intertextuality, intended as the faithful retransmission of ancient truths, and as an indication of the public domain of texts in Tibet.


2014 ◽  
Vol 1 (1) ◽  
Author(s):  
Colby Doyle ◽  
Matthew Gaudet ◽  
Dominic Lay ◽  
Amber McLeod ◽  
Robert Schaeffer

The primary goal of this research is to identify and examine the components of responsible drinking advertisements. We will examine industry and government related advertisements as we try to understand one of our major questions: does the source influence the validity of the message? The next group of major questions that we will be looking to answer is how are the vague quantifiers used in responsible drinking campaigns interpreted by the public?  How many drinks do people consider “too much?” What does “drink responsibly” really mean? The third major question is whether or not an individual’s current consumption patterns of alcohol have any effect on how individuals assess responsible drinking campaigns. Our qualitative research has indicated that social influences can be strongly related with drinking patterns; this will be further examined in our quantitative research. Also, we will be looking into some of the psychology behind industry and government sponsored advertisements as well as gathering and interpreting information from a sample of our target demographic. Our target demographic consists of both male and females between the ages 18-24. Our literature review and qualitative analysis gave us good insight into some of the potential answers to our questions. We will use these potential answers from our previous research to guide us as we attempt to conduct conclusive research based on a sample data of 169 individuals. Our findings will aid us in developing conclusions and recommendations for Alberta Health Services.


Sign in / Sign up

Export Citation Format

Share Document