Effect of sodium silicate on flocculation of hematite with starch in the presence of calcium

Separation Science and Technology

Volumn 38, Issue 3, 2003, Pages 647-659

  Arol, Ali I ^a   Iwasaki, Iwao ^b  

^a MIDDLE EAST TECHNICAL UNIVERSITY   (Turkey)

^b UNIVERSITY OF MINNESOTA DULUTH   (United States)

Author keywords

Flocculation; Hematite; Selective flocculation; Sodium silicate; Starch

Indexed keywords

ADSORPTION; CALCIUM; PRECIPITATION (CHEMICAL); SODIUM COMPOUNDS; STARCH;

POLYMERIC FLOCCULLANT;

FLOCCULATION;

CALCIUM; COAGULATING AGENT; DISPERSANT; FERRIC OXIDE; IRON; IRON OXIDE; MAGNESIUM ION; POLYMER; SILICATE SODIUM; SILICON DIOXIDE; SODIUM DERIVATIVE; STARCH; UNCLASSIFIED DRUG; WATER;

CALCIUM; FLOCCULATION; HEMATITE; STARCH;

ADSORPTION; ARTICLE; CHEMICAL INTERACTION; CONCENTRATION RESPONSE; DISPERSION; FLOCCULATION; PH; PRECIPITATION; SEPARATION TECHNIQUE;

EID: 0037217625     PISSN: 01496395     EISSN: None     Source Type: Journal    
DOI: 10.1081/SS-120016656     Document Type: Article

References (23)

1. Lien, H.O.; Morrow, J.G. Beneficiation of lean iron ores solely by selective flocculation and desliming. CIM Bull. 1978, 71, 109.
2. Colombo, A.F. Selective flocculation and flotation of iron bearing materials. In Fine Particles Processing, Proceedings of the International Symposium on Fine Particles Processing, Las Vegas, Nevada, February 24-28, 1980; Somasundaran, P., Ed.; AIME: NY, 1980; 1034.
3. Singh, B.P.; Singh, R. Investigation on the effect of ultrasonic pretreatment on selective separation of iron values from iron ore tailings. Sep. Sci. Technol. 1997, 32 (5), 1003.
4. Hahn, C.; Cordes, H.; Waldhecker, H.D. Separation by wet high intensity magnetic separation WHIMS JONES® and new pneumatic floatation system PNEUFLOT®. In Innovations in Mineral and Coal Processing, Proceedings of the 7th International Mineral Processing Symposium, Istanbul, Turkey, Sept. 15-17, 1998; Atak, S., Önal, G., Çelik, S., Eds.; Balkema: Rotterdam, 1998; 695.
5. Kitchener, J.A. Principles of action of polymeric flocculants. Br. Polym. J. 1972, 4, 217.
6. Read, A.D. The use of high molecular weight polyacrylamides in the selective flocculation separation of a mineral mixture. Br. Polym. J. 1972, 4, 253.
7. Heerema, R.H.; Lipp, R.J.; Iwasaki, I. Complexation of calcium ion in selective flocculation of iron ores. Trans. SME-AIME 1982, 272, 1879.
8. Krishnan, S.V.; Iwasaki, I. Pulp dispersion in selective desliming of iron ores. Int. J. Miner. Process. 1984, 12, 1.
9. Somasundaran, P.; Das, K.K. Flocculation and selective flocculation an overview. In Innovations in Mineral and Coal Processing, Proceedings of the 7th International Mineral Processing Symposium, Istanbul, Turkey, Sept. 15-17,1998; Atak, S., Önal, G., Çelik, S., Eds.; Balkema: Rotterdam, 1998; 81.
10. Iwasaki, I.; Carlson, W.J.; Parmeter, S.S. The use of starch and starch derivatives and depressants and flocculants in iron ore beneficiation. Trans. AIME 1969, 244, 88.
11. Laskowski, J.S.; Lui, Q.; Bolin, N.J. Polysaccharides in flotation of sulphides. Part 1. Adsorption of polysaccharides onto mineral surfaces. Int. J. Miner. Process. 1991, 33, 223.
12. Ravishankar, S.A.; Pradip; Khosla, N.K. Selective flocculation of iron oxides from its synthetic mixtures with clays: a comparison of polyacrylic acid and starch polymers. Int. J. Miner. Process. 1995, 43, 235.
13. Khosla, N.K.; Bhagat, R.P.; Gandhi, K.S.; Biswas, A.K. Calorimetric and other interaction studies on mineral-starch adsorption systems. Colloids Surf. 1984, 8, 321.
14. Weissenborn, P.K.; Warren, L.J.; Dunn, J.G. Selective flocculation of ultrafine iron ore. I. Mechanism of adsorption of starch on hematite. Colloids Surf. A: Physicochem. Eng. Aspects 1995, 99 (1), 11.
15. Gururaj, B.; Sharma, J.P.; Baldawa, A.; Arora, S.C.D.; Prasad, N.; Biswas, A.K. Dispersion-flocculation studies on hematite-clay systems. Int. J. Miner. Process. 1983, 11, 285.
16. Arol, A.I.; Iwasaki, I. Effect of montmorillonite on the selective flocculation of iron ores. Miner. Metall. Process. 1986, 3, 231.
17. Arol, A.I., Ph.D. Thesis, University of Minnesota, MN, 1984.
18. Dubois, M.; Gilles, K.A.; Hamilton, J.K.; Rebers, P.A.; Smith, F. Colorimetric method for determination of sugars and related substances. Anal. Chem. 1956, 28, 350.
19. Walton, A.G. The Formation and Properties of Precipitates; Interscience Publishers: NY, 1967.
20. Somasundaran, P. Principles of flocculation, dispersion and selective flocculation. In Fine Particles Processing, Proceedings of the International Symposium on Fine Particles Processing, LasVegas, Nevada, February 24-28, 1980; Somasundaran, P., Ed.; AIME: NY, 1980; 947.
21. Iler, R.F. The Chemistry of Silica; Wiley-Interscience: NY, 1979.
22. Stumm, W.; Morgan, J.J. Aquatic Chemistry; Wiley-Interscience: NY, 1981; 540.
23. Arol, A.I.; Iwasaki, I. Control of montmorillonite via complexation and ultrasonics in the selective flocculation of iron ores. Miner. Metall. Process. 1987, 4, 82.