Fourier-transform Infrared Characterization of Kaolin, Granite, Bentonite and Barite

Fourier transform infrared (FTIR) is a technique that is used to identify the functional group and the finger prints present in a particular sample. In this characterization, Kaolin clay from Wanka Kirfi and Granite from Kafin Tafawa in Bauchi state while Bentonite and Barite from free zone drilling company, Port-Harcourt, River state have been analyzed within the mid infrared region using Perkin Elmer 1310 infrared spectrophotometer. The result obtained showed that mineral contents of the samples free hydroxyl were within the spectra region of 3900-3820cm-1. Diazonium salts at the peak region frequency of 3200-3100cm-1, organic substance at peak region of 2900-2700cm-1, by comparing the spectra obtained with those present in literatures. These indicate that the Si-O, Si-O-Al, Si-O-Fe, Al-Mg-OH, Si-OH, Ba-S-O and Si-O-Si groups prevailed in the FTIR spectral measurement of the samples which are indication of the finger prints and functional group based on their group. Other distinct spectra with octahedral, polyhedral stretching vibration and symmetric stretching bonds of SO42- and CO32- modes in barite and granite spectrum indicate the presence of the calcite group common to most clays.Keywords: characterization; clays; infrared; minerals; spectroscop

Removal of Oxyanion Contaminants from Wastewater by Sorption onto HDTMA-Br Surface Modified Organo-Kaolinite

Abstract — In the present study, kaolin clay from Alkaleri

Extraction and Assessment of Physicochemical Properties of Rosigold Mango (Mangifera indica) Seed Kernel Oil for Bioresin Production

This paper presents research report on extraction and assessment of physicochemical properties of Rosigold mango kernel oil. This is with a view to using the oil for bioresin production so as to mitigate some of the problems associated with petrochemical resins currently used for bulk of composite production activities. The seeds of the mango were identified and collected from the wastes discarded by marketers and consumers in Bauchi town. The Oil was obtained using soxhlet extraction with n-Hexane as solvent. The oil was characterized for yield, relative density, free fatty acid value, acid value, iodine value, and saponification value. Mean values of the characteristic parameters were: oil yield 19.6%, relative density 0.874 g/cm3, free fatty acid value 3.09 mg NaOH/g oil, acid value 6.18 mg KOH/g oil, iodine value 60.7 mg iodine/100 g oil and saponification value 143.6 mg KOH/ g oil. Analysis and comparison of these results with the physicochemical properties of palm oil, Soya bean oil and Hemp seed oil respectively, revealed that the iodine value of Rosigold mango seed kernel oil is higher than palm oil, but lower than Soya bean and Hemp seed oils respectively. Bioresin production is heavily dependent on the degree of unsaturation of the oil which is reflected by the iodine value. However, the overall results suggested that Rosigold mango seed kernel oil is suitable for bioresin production since the minimum iodine bench mark for renewable oil suitable for bioresin production is 50 mg iodine/100 g oil. The extracted oil has an added advantage in that the source (mango seed) is a waste material that is readily available, affordable and sustainable in Nigeria and many other countries