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Bleaching of Some Vegetable Oils with Acid-Activated ...

Jordanian minerals. Bentonite was obtained from Ain Al-Baida at Al-Azraq depression, East of Jordan and kaolinite was from butn Al-Goul region, south of the country. Ground samples that passed the 200 mesh were used. Acid activation procedure for native minerals: The optimum condition were selected6,7,9,10 for activation of bentonite and ...

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Acid Activation of Bentonites and Polymer-Clay ...

2009-4-1  Modified bentonites are of widespread technological importance. Common modifications include acid activation and organic treatment. Acid activation has been used for decades to prepare bleaching earths for adsorbing impurities from edible and industrial oils.

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Rehabilitating of used Generator Oil by Acid /Bentonite ...

Request PDF Rehabilitating of used Generator Oil by Acid /Bentonite Treatment and Studying of its Performance Evalution Used generator lubricant oils are considered hazardous wastes because of ...

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Colza oil bleaching through optimized acid activation of ...

2009-1-1  Bentonite activation is usually achieved using mineral acids (sulphuric or hydrochloric acid) under heating for a few hours. Activation is a complex process that involves a series of chemical reactions, resulting in strongly protonated clay mineral surface and increased specific surface area from an original 40–60 to about 200 m 2 per gram of ...

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Application of Iranian nano-porous Ca-bentonite for ...

2015-3-25  The activation of bentonite by sulfuric acid, 1.00 mol l −1, yields an adsorbent material that is efficient in removal of color from waste oil and is better than the natural one. The decolorizing power of clay treated by nitric acid at the same condition was shown to be inefficient for the recovery of used lubricant

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Maximum Bleaching of Vegetable Oils by Acid-activated ...

2018-2-13  The particle size distribution of the bentonite was not affected to any great extent by acid activation (Önal and Sarıkaya 2007b). Alkali-refined soybean oil (SO) and cottonseed oil (CSO) used for bleaching were acquired from a vegetable oil plant and used as received (Marsa, Istanbul, Turkey). Analytically pure H 2 SO

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Waste Lubricating Oil Treatment by Adsorption Process ...

2019-2-4  ASTE lubricant oils are generated from vehicles and machineries. This waste lubricating oil has higher ... kernel powder was used without acid activation and with 15 % (wt) sulfuric acid activation. The egg shale was washed, dried, ... 15% bentonite material, acid activated bentonite and date palm

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Efficient removal of contaminants from waste lubricant oil ...

2019-6-13  The low-cost Ca-bentonite was rapidly converted to a mesoporous adsorbent via microwave-assisted acidification and the obtained materials were employed for the removal of contaminants from waste lubricant oil. In order to understand the role of acid combinations on activation, the agent compositions were prepared according to the mixture design algorithm.

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Improvement of Used Transformer Oils with Activated

2013-12-24  been proved that used oil treated with activated Beto- n nite gives better results. 2.2. Methods of Preparation and Acidic Activation for BENTONITE . 1) BENTONITE raw material is grinded softly. 2) Adding concentrated acid to the grinded BENTO-NITE. 3) Raising the temperature of the mixture up to 70˚C with continuous stirring for about half an ...

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(PDF) Sulphuric Acid Activation of a Calcium Bentonite

4. ) activation of the bentonite was conducted in a three-necked 0.5 liter. Limestone flask. Acid co ncentrations wer e prepared as 0.5, 1, 1.5, 2, 3, and 4 M. A reflux. condenser was attached to ...

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Improvement of Used Transformer Oils with Activated

2013-12-24  been proved that used oil treated with activated Beto- n nite gives better results. 2.2. Methods of Preparation and Acidic Activation for BENTONITE . 1) BENTONITE raw material is grinded softly. 2) Adding concentrated acid to the grinded BENTO-NITE. 3) Raising the temperature of the mixture up to 70˚C with continuous stirring for about half an ...

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Waste Lubricating Oil Treatment by Adsorption Process ...

2019-2-4  ASTE lubricant oils are generated from vehicles and machineries. This waste lubricating oil has higher ... kernel powder was used without acid activation and with 15 % (wt) sulfuric acid activation. The egg shale was washed, dried, ... 15% bentonite material, acid activated bentonite and date palm

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Maximum Bleaching of Vegetable Oils by Acid-activated ...

2018-2-13  The particle size distribution of the bentonite was not affected to any great extent by acid activation (Önal and Sarıkaya 2007b). Alkali-refined soybean oil (SO) and cottonseed oil (CSO) used for bleaching were acquired from a vegetable oil plant and used as received (Marsa, Istanbul, Turkey). Analytically pure H 2 SO

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Biodiesel production of jatropha curcas oil by bentonite ...

oils with methanol [11–15]. Corma et al. evaluated ... of smectite and illite are not dissolving by acid activation [25]. The increase in relative content of these cations ... The methyl ester content a used Na/bentonite catalyst with variation time reaction is shown in Fig. 5. The transesterification is conducted close to the boiling point of

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Regeneration of Used Engine Oil - Welcome to IAENG ...

2013-4-30  specific gravity, density, API, colour, and the total acid number (TAN). Viscosity Measurement Viscometer was used to measure the viscosities of fresh, used and regenerated oils. The viscometer set up consists of silver line test vessel with an agate orifice placed in a

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Changes in Lubricant Properties of Used Synthetic Oils ...

2018-4-18  The acid number, which for fresh oils ranged from 1.29 to 1.78 mg KOH/g, increased significantly over the entire operating period. After the first quarter with a mileage of up to 4000 km, the greatest increase in the acid number was recorded for PE 017939 (an increase of 86%), ME 018345 (an increase of 72%), PE 018689 (an increase of 70%), and ...

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Refining of used Engine Oil – IJERT

2020-5-27  The advantage of using the acetic acid is that it does not react with base oils. The recycling process takes place at room temperature. The recycling process started with removing the contamination from the used engine oil. Glacial acetic acid was mixed with the used engine oil using a ratio of 0.8 mL acetic acid to 10 mL used engine oil.

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Characterization of Used Lubricant Oil in a Latin

2021-2-2  derived products. The yield of lubricant oils through the re-refining of used oils is higher than the yield from virgin crude petroleum refining [2], promoting a reduction of about 90% of the environmental impacts that otherwise could result from the production of petroleum-derived lubricant oils

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Reclamation of used lubricating oils - cwejournal.org

2011-5-1  Burning and all other routes of disposals of used lubricating oils are uneconomical and result in the wastage of resources. 2-6 The recycling of waste lubricating oils may be a suitable and economical alternative to burning and incineration. 7 Different techniques have been developed for reclaiming and re-refining waste lubricants oils to ...

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Industrial- and automotive-used lubricating oils recycling ...

2020-1-13  The request of lubricants is consistently on the expansion with expanding foundation of manufacturing plants and the gigantic increment in the quantity of motor and different methods for transportation [].Lubricating oils primarily has been used for the reduction of friction between various rotating parts of the equipment and machineries, bringing about the reduction of materials, and ...

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Investigations of the Changes in the Bentonite Structure ...

2015-4-27  used for the acid activation of bentonite, and samples with mass 20 g for thermal activation. 2.1. Sulphuric acid activation Samples consisting of 10 g of bentonite were treated separately with 20 ml H2SO4 concentrations of 10 %, 40 % and 70 %, or with 50 ml

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Refining of used Engine Oil – IJERT

2020-5-27  The advantage of using the acetic acid is that it does not react with base oils. The recycling process takes place at room temperature. The recycling process started with removing the contamination from the used engine oil. Glacial acetic acid was mixed with the used engine oil using a ratio of 0.8 mL acetic acid to 10 mL used engine oil.

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ADDITIVES IN LUBRICATING OILS - idc-online

2019-2-4  Mineral oils react with oxygen of air forming organic acids. The oxidation reaction products cause increase of the oil viscosity, formation of sludge and varnish, corrosion of metallic parts and foaming. Anti-oxidants inhibit the oxidation process of oils. Most of lubricants contain anti-oxidants. The following materials are used as anti-oxidants:

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Maximum Bleaching of Vegetable Oils by Acid-activated ...

2018-2-13  The particle size distribution of the bentonite was not affected to any great extent by acid activation (Önal and Sarıkaya 2007b). Alkali-refined soybean oil (SO) and cottonseed oil (CSO) used for bleaching were acquired from a vegetable oil plant and used as received (Marsa, Istanbul, Turkey). Analytically pure H 2 SO

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Changes in Lubricant Properties of Used Synthetic Oils ...

2019-7-24  Changes in Lubricant Properties of Used Synthetic Oils Based on the Total Acid Number Artur Wolak Abstract This article describes the processes of degradation of five engine oils belonging to the same SAE (Society of Automotive Engineers) viscosity class but launched by different manufacturers. The direction and intensity of changes in the ...

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Reclamation of used lubricating oils - cwejournal.org

2011-5-1  Burning and all other routes of disposals of used lubricating oils are uneconomical and result in the wastage of resources. 2-6 The recycling of waste lubricating oils may be a suitable and economical alternative to burning and incineration. 7 Different techniques have been developed for reclaiming and re-refining waste lubricants oils to ...

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Bio-based (edible) oils: feedstock for lubricants of the ...

The term “vegetable oil” was introduced previously, but this is a broad term that encompasses several oils made from different feedstocks and used for different applications. Canola oil is used to make food-grade lubricants, hydraulic oils, and metal working fluids. Coconut oil is mainly used in gas engines.

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US3240616A - Method of activating bentonite clays -

US3240616A US219733A US21973362A US3240616A US 3240616 A US3240616 A US 3240616A US 219733 A US219733 A US 219733A US 21973362 A US21973362 A US 21973362A US 3240616 A US3240616 A US 3240616A Authority US United States Prior art keywords clay solution bentonite activation activator Prior art date 1962-08-27 Legal status (The legal status is an assumption and is

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OLEIC ACID BASED POLYESTERS OF

2015-2-24  considered as potential candidates as supplant to mineral oil based lubricant oils and synthetic esters [17-18]. In this study oleic acid (99.5%) was used in the synthesis of base stock oil for bio-lubricant production. Oleic acid is monounsaturated fatty acid, which contains a single double bond at carbon 9-10 and also known as omega-9 (ω-9) oil.

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Changes in Lubricant Properties of Used Synthetic Oils ...

This article describes the processes of degradation of five engine oils belonging to the same SAE (Society of Automotive Engineers) viscosity class but launched by different manufacturers. The direction and intensity of changes in the total acid number have been analyzed. As part of the experiment, the changes in engine oils occurring during operation have been examined.

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