Recovery of red iron oxide pigment from zinc plant hematite precipitates

Запропоновані дезінфікуючі добавки для будівель-них матеріалів, які зміцнюють і покращуютьструктуру, запобігають росту і розвитку мікро-флори: діоксид титану (рутил), титан анатаз,жовтий залізоокисний піґмент у свинарських під-приємствах. Проведені мікологічні дослідженняотриманих зразків, дається їх порівняльна оцінка.Фунгіцидні властивості будівельних матеріалівдосліджували протягом 14–28 діб. Було виявлено,що у зразках із додаванням дезінфектанту залізо-окисного піґменту кількість колоній грибівзменшилася протягом зазначеного терміну. This article suggests disinfecting additive for construction materialsthat strengthen and improve the structure, preventing thegrowth and development of microflora: titanium dioxide (rutile)titanium anatase, red iron oxide pigment in pig enterprises.Carried out mycological studies of the samples and gave them acomparative evaluation. Fungicidal properties of building materialsstudied for 14–28 days. It was found that the samples withthe addition of a disinfectant iron oxide pigment of fungal coloniesdecreased during this period.

Download Full-text

Studies on Black Iron Oxide Pigment. Part-II: Effect of Preparation Parameter on Particle Size and Microstructure of Ferrosoferric Oxide

Bangladesh Journal of Scientific and Industrial Research ◽

10.3329/bjsir.v44i1.2711 ◽

1970 ◽

Vol 44 (1) ◽

pp. 31-40 ◽

Cited By ~ 1

Author(s):

AJM Tahuran Neger ◽

Aftabuddin Ahmed ◽

Sufia Parvin ◽

AM Shafiqul Alam

Keyword(s):

Particle Size ◽

Iron Oxide ◽

Standard Sample ◽

Average Particle ◽

X Ray Diffraction ◽

Sample Number ◽

X Ray ◽

Iron Oxide Pigment ◽

Oxide Pigment ◽

Preparation Parameter

This paper deals with the effect of preparation parameter on particle size and microstructure of the prepared ferrosoferric oxide. 10 prepared samples (from 23 samples) and one standard sample (Bayferrox 318 standard 88) collected from BAYER, Germany was selected for this study. X-ray diffraction, petrographic microscopy, scanning electron microscope and particle size analyzer were used to characterize the phase present, particle size and shape of the particle. It is observed from X-ray diffraction that all these samples mainly contain Fe3O4 phase. The shape of the particle is found to be round and agglomerated. The average particle diameter of highest portion of pigment in the peak region is ranged from 12.25μ to 17.32μ, which is very similar to the standard sample (17.32μ). Sample number 9, which was prepared with ferrous sulphate, hydrochloric acid, sodium nitrate and ammonium hydroxide at a molar ratio 1:1.74:0.16:4.07 and standard sample contain narrow high peak in their particle size distribution curve. Another observation is that, experimental parameter, though have some effect on particle size but have no effect on microstructure. Key words: Black iron oxide, Pigment, Particle size, Microstructure, Ferrosoferric oxide. doi: 10.3329/bjsir.v44i1.2711 Bangladesh J. Sci. Ind. Res. 44(1), 31-40, 2009

Download Full-text