Work

Purification of halloysite by magnetic separation

Year: 2016

Type: article

Abstract: Rational use of mineral resources requires advanced separation methods in order to obtain high quality products. In this study chemical treatment with magnetic separation of halloysite from Dunino (Poland) is presented. Initial crushing, hydrochloric acid absorption treatment, sedimentation (settling) and polygradient magnetic separation in weak magnetic field were applied to separate aluminosilicates from iron and titanium oxides (impurities). The process allowed to obtain a product of approximately 98% purity of the aluminosilicate fraction (halloysite + kaolinite). The tailings from magnetic separation consisted of iron oxides, while the intermediate product consisted mainly of aluminosilicate and iron chlorides resulting from the HCl treatment. The obtained products can be used as a component of polymer nanocomposites, sorbents and in ceramics industry.

Source: Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu

DOI: 10.5277/ppmp160236

Authors: Sakiewicz, Piotr, Lutynski, Marcin, Soltys, Jozef, Pytlinski, Andrzej

Institution: Silesian University of Technology

Language: English

Topic: Clay minerals and soil interactions

Subfield: Biomaterials

Field: Materials Science

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: green

OpenAlex ID: W2557078351

FWCI: 0.545

Cites: 20

Cited by: 25

Related to: 10