ORE DRESSING OF QUARTZ FROM TANHACU/BA FOR PRODUCTION OF METALLURGICAL GRADE SILICON (SiGM) WITH HIGH PURITY

被引：0

作者：

Dias, R. S. S. ^{[1
,3
]}

Silva, E. B. ^{[1
,2
]}

Silva, F. A. N. G. ^{[2
]}

Garrido, F. M. S. ^{[2
]}

Amado, R. S. ^{[2
]}

Sampaio, J. A. ^{[1
]}

机构：

[1] Ctr Tecnol Mineral CETEM MCTI, Rio De Janeiro, Brazil

[2] Univ Fed Rio de Janeiro, Inst Quim, Rio De Janeiro, Brazil

[3] Univ Fed Rio de Janeiro, Escola Quim, Rio De Janeiro, Brazil

来源：

HOLOS | 2014年 / 30卷 / 03期

关键词：

Metallurgical grade silicon; Quartz; Ore dressing; Characterization;

D O I：

10.15628/holos.2014.1820

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In this paper the steps of ore dressing and characterization of quartz from Tanhacu/BA were developed for using it as raw material for production of metallurgical grade silicon (SiGM) with low levels of impurities. The quartz sample after steps of crushing, calcining followed by quenching and autogenous grinding for 2 hours resulted in a product with a high SiO2 content (> 99%), an increase of nearly 2% compared to the original sample, and a considerable decrease in the levels impurities, boron and phosphorus, and others as, iron, aluminium and calcium, that also affect the quality of quartz. The results indicate that this quartz has potential to be used in the production of high purity SiGM, quite different from conventional SiGM.

引用

页码：88 / 93

页数：6

共 7 条

[1] GUSO P. L. Quartzo, 2008, ROCHAS MINERAIS IND, P681
[2] Dissolution windows for hydrometallurgical purification of metallurgical-grade silicon to solar-grade silicon: Eh-pH diagrams for Fe silicides
Kim, Eunyoung
Osseo-Asare, Kwadwo
[J]. HYDROMETALLURGY, 2012, 127 : 178 - 186
[3] Silicon solar cell production
Ranjan, S.
Balaji, S.
Panella, Rocco A.
Ydstie, B. Erik
[J]. COMPUTERS & CHEMICAL ENGINEERING, 2011, 35 (08) : 1439 - 1453
[4] Processes for upgrading metallurgical grade silicon to solar grade silicon
Safarian, Jafar
Tranell, Gabriella
Tangstad, Merete
[J]. TECHNOPORT 2012 - SHARING POSSIBILITIES AND 2ND RENEWABLE ENERGY RESEARCH CONFERENCE (RERC2012), 2012, 20 : 88 - 97
[5] SERODIO L. M., 2009, ESTADO ARTE OBTENCAO
[6] SOARES L. G. L., 2012, HOLOS, V5, P3
[7] Low-temperature purification process of metallurgical silicon
Zhao Li-xin
Wang Zhi
Guo Zhan-cheng
Li Cheng-yi
[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2011, 21 (05) : 1185 - 1192

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