SWS Academic Research eLibraryEarth & Planetary Sciences

Scholarly record

COMPLEX STUDY, CHEMICAL AND MINERALOGICAL, OF THE RED MUD DUMPS RESULTS IN ROMANIAN ALUMINA PLANTS

Mihai Ghita

First published: 2011-06-20https://doi.org/10.5593/sgem2011/s04.107View metrics

Abstract

The hydrometallurgical process for obtaini ng alumina by Bayer process bauxite is getting significant amounts of red mud (0.8 - 2 t / t Al 2O3). It is deposited in dumps which can cause danger for environment mainly due to the alkali content ( pH = 8-13) and small dimensisons of particles (less than 60 microns). Chemical and mineralogical composition of red mud bauxite is closely related to type of the bauxite used as raw material and processing conditions determined by some peculiarities of applied technology (pressure, temperature, etc.). In Romania, a producer of alumina and aluminum tradition for over 50 years, have been processed in time many varieties of bauxite of intern al origin and imported bauxites. Red mud is stored entirely in dump type deposits. This paper presents the results of the mi neralogical study (x-ray diffraction, scanning electronic microscopy, optical microscopy) and chemical analysis of different sorts of red mud.

Publication Impact Profile

PlumX Article Metrics by Elsevier

Publication details

Title
COMPLEX STUDY, CHEMICAL AND MINERALOGICAL, OF THE RED MUD DUMPS RESULTS IN ROMANIAN ALUMINA PLANTS
Authors
Mihai Ghita
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference
Publisher
Stef92 Technology
Year
2011
Pages
Not available yet
ISSN
1314-2704
ISBN
Not available yet
Language
en
Publication type
Conference Paper
Keywords
red mudbauxiteBayer process
References8

  1. Meyer F. M. Availability of Bauxite Reserves, Natural Resources Research, Vol. 13, No. 3, 2004;

  2. Cablik V. Characterization and applica tions of red mud from bauxite, Gospodarka Surowcami Mineralnymi, Polska, vol. 23, 2007.

  3. Gruder, G. A. Aluminiul, de la materie prim ă la produse finite, Editura Tehnica, Bucuresti, 2000.

  4. Ră dulescu D., Anastasiu N. Petrologia rocilor sedimentare, Ed. Didactica si Pedagogica, Bucuresti, 1979. DRX REFERE1CES

  5. ICDD database, Powder Diffraction File, edited by International Centre for Diffraction Data 2006.

  6. National Institute of Standards & Technology: Certificate of Analysis, Standard Reference Material 1976, Instrument Sensitivity Standard for X-Ray Powder Diffraction

  7. V. E. Buhrke, R. Jenkins, D.K. Smith: A Practical Guide for the Preparation of Specimens for X-Ray Fluorescence and X-Ray Diffraction Analysis, John Wiley & Sons, 1998

  8. Bruker AXS GMBH: DIFFRAC plus BASIC Evaluation Package EVA12, Release 2006, User’s Manual, Sept. 6, 2006, Karlsruhe, Germany

View or Download full articleAccess options
Full paper accessChoose SWS login, librarian support, or instant article download.

SWS access login

Login as SWS Scientific Committee

Authors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.

For librarian assistance: [email protected]

Purchase Instant Access

48-hour online accessComing soon
Online-only accessComing soon
Download the full article in PDF formatEUR 35
  • Article can be downloaded after successful payment.
  • Article may be used according to SWS library access terms.
  • Article cannot be redistributed.
Get full paper

Back to publication list