METHOD FOR TREATING BAUXITE

PROBLEM TO BE SOLVED: To make completely effective use of a residue after bauxite is treated and to recover alkali to be used when bauxite is treated. SOLUTION: Adumina is extracted from bauxite by using an alkali aqueous solution so that a precipitated desiliconization product is not mixed in the o...

Full description

Saved in:
Bibliographic Details
Main Authors TAKENAKA YOSHIYUKI, KAWAI YASUO, ISHIKAWA ISAO
Format Patent
LanguageEnglish
Published 17.07.2001
Edition7
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
COMPOUNDS THEREOF
CONCRETE
DISPOSAL OF SOLID WASTE
INORGANIC CHEMISTRY
LIME, MAGNESIA
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
RECLAMATION OF CONTAMINED SOIL SOIL
REFRACTORIES
SLAG
TRANSPORTING
TREATMENT OF NATURAL STONE
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To make completely effective use of a residue after bauxite is treated and to recover alkali to be used when bauxite is treated. SOLUTION: Adumina is extracted from bauxite by using an alkali aqueous solution so that a precipitated desiliconization product is not mixed in the other bauxite residues or is not reacted with the other bauxite residues to form no complex compounds. The alkali content is made dissolvable by burning the desiliconization product together with a calcium compound to be recovered, the alkali content is also removed from the residues (solids) and the recovered alkali contents are used as resources effectively.
Bibliography:Application Number: JP19990374946