Bleaching Performance Of A Nigerian Yola
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Bleaching Performance Of A Nigerian Yola

(PDF) Bleaching, performance of a Nigerian (Yola) Bentonite

The best bleaching performance was obtained with clay sample activated with 5M H 2 SO 4 at acid to clay ratio 0.7, bleaching temperature of 120 o C and at 10 minute stirring time. ...

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BLEACHING PERFORMANCE OF A NIGERIAN (YOLA) BENTONITE

BLEACHING PERFORMANCE OF A NIGERIAN (YOLA) BENTONITE ... bleaching performance was examined by varying the volume of the acid solution added in the activation rec-ipe.

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(PDF) Bleaching performance of a nigerian (Yola) bentonite ...

The bleaching performance of raw and acid activated Yola montmorillonite clay was studied. The bleaching performance was enhanced upon activation. The predominant active sites on the raw clay are Lewis acid sites, those on the improved clay are

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BLEACHING PERFORMANCE OF A NIGERIAN (YOLA) BENTONITE

Abstract−− The bleaching performance of raw and acid activated Yola montmorillonite clay was studied. The bleaching performance was enhanced upon activation. The predominant active sites on the raw clay are Lewis acid sites, those on the improved clay are Bronsted acid sites. The best bleaching per-formance was obtained with clay sample ...

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[PDF] Bleaching performance of a nigerian (Yola) bentonite ...

The bleaching performance of raw and acid activated Yola montmorillonite clay was studied. The bleaching performance was enhanced upon activation. The predominant active sites on the raw clay are Lewis acid sites, those on the improved clay are Bronsted acid sites. The best bleaching per- formance was obtained with clay sample activated with 5M H2SO4 at acid/clay ratio 0.7, bleaching

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Figure 1 from Bleaching performance of a nigerian (Yola ...

Figure 1: Effect temperature on the % colour removed. Clay to oil ratio 5%; UL8 unactivated L8 sample; AL8 activated L8 (0.7 acid (5MH2SO4)), IS Industrial Sample. - "Bleaching performance of a

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Figure 1 from Bleaching performance of a nigerian (Yola ...

Figure 1: Effect temperature on the % colour removed. Clay to oil ratio 5%; UL8 unactivated L8 sample; AL8 activated L8 (0.7 acid (5MH2SO4)), IS Industrial Sample. - "Bleaching performance of a nigerian (Yola

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Bleaching of Palm Oil by Activated Local Bentonite and ...

bleaching power of some selected Nigerian clays found in Shagamu and Ewekoro both in Ogun state; Calabar in Cross River state and Nsukka, Enugu state were investigated by Oboh (1987) and reasonable percentage reduction around 80% was achieved. The bleaching performance of raw and acid activated Yola montmorillonite

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Bleaching performance of a nigerian (yola) bentonite

Bleaching performance of a nigerian (yola) bentonite BIBLAT Bibliografía Latinoamericana en revistas de investigación científica y social Toggle navigation BIBLAT

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Bleaching of palm oil by activated local bentonite and ...

Process Biochem., 34, 451 -465. James, O. O., Mesubi, M. A., Adekola, F. A., Odebunmi, E. O., Adekeye, J. I. D., Bale, R. B. (2008). Bleaching performance of a Nigerian (Yola) bentonite.

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Characterization, Acid Activation, and Bleaching ...

Actual laboratory tests for bleaching performance evaluation confirmed the prediction above that the clay indeed has poor bleaching action as shown by percent colour reduction. The colour reduction for natural clay was 9.1%. This value only increased to 27.3% after 3M HCl activation, a value still very low for effective bleaching. 1. Introduction

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Effect of Alumina Content and Surface Area of Acid ...

The adsorption studies showed that the optimal bleaching of ~83 or ~81 % were achieved by activation with 0.5 M hydrochloric or citric acid, respectively, whereas bleaching with a commercial clay was ~82 %. The highest bleaching value was not associated with the maximum clay surface area or porosity.

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Performance Evaluation of a Solar Water Heater in Yola ...

The incident solar radiation intensity and ambient temperature data was collected from Nigerian Environmental Climatic Observation Programme (NECOP) instrument installed at Modibbo Adama University of Technology (MAUTECH) Yola. The values of the glass surface, absorber, air between absorber and glass,

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APPRAISING EFFECTIVENESS OF KEY PERFORMANCE

for Nigerian Construction firms, the four indicators in order of frequencies were; Quality control, On time completion, Cost and Unit/day. Using likert scale analysis 9 indicators were identified as Effective Key Performance Indicators in Nigeria. The identified indicators in order of effectiveness are;- (1) Quality

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Determination of Conduct, Performance and Structure of ...

According to NBS (2012), Nigerian agricultural sub-sector contributes about 56.8 percent Domestic Product (GDP). Also, it employs about 70 per cent of the labour force and provides over 80 per cent of the foods of the sector's performance and contribution to GDP declined in 2012 to 36.2 percent which was due to the flooding crisis and

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Analysis and Computation of the Performance of Micro ...

Located at number 80, Mohammed Musdafa Way, Jimeta-Yola, Standard Micro - nance Bank Yola Ltd (SMFB) formally called Jimeta Community Bank Nig. Ltd; was o cially commissioned on November 30, 1992 as a unit bank in Jimeta, Yola North local government area of Adamawa State. The bank was incorporated on July 5, 1995 under the community banking Act of 1990.

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The palm oil bleaching capacity of various Nigerian clay ...

The degree of bleaching was determined by comparing the absorbance of residual pigment at 452 nm with that of unbleached oil. Performance was assessed with a modified form of the Freundlich adsorption isotherm ( X/M = KC n ), where X/M is the mass of pigment adsorbed per unit weight of adsorbent, C is the equilibrium concentration of pigment, and the constant K provides an index of performance ...

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Alarm over rise in skin bleaching among Nigerians ...

WORRIED by the increase in skin bleaching among Nigerians and unregulated sale of bleaching agents in the country, dermatologists have raised the alarm over the effects of the practice.

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Effect of Alumina Content and Surface Area of Acid ...

The adsorption studies showed that the optimal bleaching of ~83 or ~81 % were achieved by activation with 0.5 M hydrochloric or citric acid, respectively, whereas bleaching with a commercial clay was ~82 %. The highest bleaching value was not associated with the maximum clay surface area or porosity.

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Performance Evaluation of a Solar Water Heater in Yola ...

The incident solar radiation intensity and ambient temperature data was collected from Nigerian Environmental Climatic Observation Programme (NECOP) instrument installed at Modibbo Adama University of Technology (MAUTECH) Yola. The values of the glass surface, absorber, air between absorber and glass,

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Performance of Temperature Base Models for Estimating ...

Performance of Temperature Base Models for Estimating Solar Radiation in Yola, Adamawa State, Nigeria Ogbaka D.T1, Yohanna E2 1Department of Pure and Applied Physics, Adamawa State University, Mubi, Adamawa State, Nigeria 2Department of Sciences, Federal Government Girls College, Jalingo, Taraba State.

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Acid-activation assisted by microwave of a Brazilian ...

01-10-2013  In this study, bleaching efficiency (BE) was express in terms of β-carotene removal and is defined by the following expression (Foletto et al., 2006): (1) %BE = 1 − A A 0 ⋅ 100 ≡ 100 1 − ψ where: A/A o is the relative absorbance, and ψ, a dimensionless pigment concentration (i.e., ψ ≡ C/Co, is the β-carotene relative molar concentration in the oil), is assumed to be proportional to the relative

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Determination of Conduct, Performance and Structure of ...

According to NBS (2012), Nigerian agricultural sub-sector contributes about 56.8 percent Domestic Product (GDP). Also, it employs about 70 per cent of the labour force and provides over 80 per cent of the foods of the sector's performance and contribution to GDP declined in 2012 to 36.2 percent which was due to the flooding crisis and

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Analysis and Computation of the Performance of Micro ...

Located at number 80, Mohammed Musdafa Way, Jimeta-Yola, Standard Micro - nance Bank Yola Ltd (SMFB) formally called Jimeta Community Bank Nig. Ltd; was o cially commissioned on November 30, 1992 as a unit bank in Jimeta, Yola North local government area of Adamawa State. The bank was incorporated on July 5, 1995 under the community banking Act of 1990.

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American University of Nigeria, Yola, disengaged 400

Nigerian Stock Exchange NSE resumes new trading week with 0.22% loss The local bourse resumed the first trading week on a bearish note with key performance indicators dropping by 0.22 per c...

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Dike Chukwumerije - Wikipedia

Dike Chukwumerije is a Nigerian spoken word and performance poetry artist and an award-winning author. He has eight published book including the novel Urichindere, which won the 2013 Association of Nigerian Authors (ANA) Prize for Prose Fiction and a poetry theatre production - Made In Nigeria - currently touring the country. At October 2018, it has been to nine Nigerian

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