Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Chemical method


Improve the Process of Enhancing Oil Recovery (EOR) by Applying Nanomagnetic Cobalt Ferrite Nanoparticles

A.D. Thamir; K.A. Sukkar; Ali A. Ati

Engineering and Technology Journal, 2017, Volume 35, Issue 9, Pages 872-877

In this paper we reported nano-crystalline cobalt ferrite powders were synthesized using co-precipitation method at 600 °C, 700 °C and 800 °C. The structural, morphological and magnetic properties of the powders were investigated by x-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM). Infrared spectral analysis data between 200 and 1000 cm-1 defined the intrinsic cation vibrations of the characteristic spinel structure system. The saturation magnetization (Ms) and coercivity (Hc) of the CoFe2O4 were found to be in the range of 94-33 emu/g, which is still in the range of hard ferrite. The observed variation in saturation magnetization, coercivity and remanence magnetization as a function of increasing the temperature and grain size of samples. From this point of view, nano-scale size of nanoparticles makes them efficient for using in borehole stability maintaining for enhancing oil and gas recovery efficiency improvement. The large value of magnetic pressure (-2.95699) are expected to be useful in oil recovery applications. It has also been found that the choice of nanoparticles for application in oil recovery depends on nature, magnetic and electric properties of the reservoir rock.

Synthesis and Characterization of Hydroxyapatite Nano materials using chemical method

Suhair Shakir Majeed; Sahar Abdul Aziz Mohammed; Huda Talal Sulaiman; Luma Malak

Engineering and Technology Journal, 2015, Volume 33, Issue 6, Pages 1154-1157

Synthesis natural hydroxyapatite in different nanostructure shapes and sizes such that the toxicity is reduced to the minimum for an individual application. However, the synthesis and functionalization processes are accomplished using chemical method. The morphology of the HAP nanoparticles changes from rod to spherical. Rod shaped particle are found with length between 10-20 nm while the spherical particles are found with radius less than 10 nm. But for the pure HAP only rod morphology observed with the size ranging from 30-60 nm.