Changes of Clay Mineral Association After High-Gradient Magnetic SeparationEnglish Full Text

LIU FAN; TAN WENFENG; HE JIZHENG; LI XUEYUAN and A. VIOLANTE(Huazhong Agricultural University, Wuhan 430070 (China))(Universita di Napoli "federico II", Napoli 880055 (Italy))

Abstract: The changes of clay mineral association after high-gradient magnetic separation （HGMS） treatment, and the effects of chemical and physical technologies on concentrating Fe oxides for main soils in central and southern China were investigated by means of X-ray diffraction （XRD） and chemical analysis methods. Results indicated that the concentrating times of Fe oxides by HGMS treatment were the largest for 0.2-2 μmsize fractions in the examined soils. For the soils in which 2: 1 phyllosilicates were dominant, concentrating times of iron oxides by HGMS treatment were larger than by 5 mol L-1 NaOH treatment. Phyllosili-cates were decreased after HGMS treatment; however, the decrease was less than that of kaorolinite. The goet bite / （goethite + hematie） values in Fe oxides of the soils kept virtually constant after HGMSt reatment.

Keywords：

clay mineral; Fe oxides; magnetic separation; soil;

Series：
(D) Agriculture
Subject：
Fundamental Science of Agriculture; Agronomy
Classification Code：
S152

Mobile Reading

Read on your phone instantly

Step 1
Scan QR Codes

"Mobile CNKI-CNKI Express" App

Step 2
Open“CNKI Express”

and click the scan icon in the upper left corner of the homepage.

Step 3
Scan QR Codes

Read this article on your phone.
CAJ Download
PDF Download

Changes of Clay Mineral Association After High-Gradient Magnetic SeparationEnglish Full Text

LIU FAN; TAN WENFENG; HE JIZHENG; LI XUEYUAN and A. VIOLANTE(Huazhong Agricultural University, Wuhan 430070 (China))(Universita di Napoli "federico II", Napoli 880055 (Italy))

Read on your phone instantly

Citation Network

Related Literature