DSpace Collection: https://repository.sustech.edu/handle/123456789/16800 2026-04-23T16:01:47Z 2026-04-23T16:01:47Z Preparation and Evaluation of Ethoxylated Jatropha Oil Fatty Acids as Deemulsifier for Crude Oil Emulsion Taha,Haitham A. Ahmed M. Al-Sabagh2 Elmugdad A. Ali1 https://repository.sustech.edu/handle/123456789/16809 2017-06-04T08:35:30Z 2016-01-01T00:00:00Z Title: Preparation and Evaluation of Ethoxylated Jatropha Oil Fatty Acids as Deemulsifier for Crude Oil Emulsion Authors: Taha,Haitham A.; Ahmed M. Al-Sabagh2; Elmugdad A. Ali1 Abstract: Oil is produced from reservoirs in association with natural formation water or mixed formation during water injection. Removal of water is an essential step in petroleum refining for many technical reasons. Nonconventional homologous surfactants derived from natural oil such as Jatropha oil were synthesized to replace the commercial surfactants. The synthesis comprises two steps: first hydrolysis of the Jatropha oil followed by ethoxylation. The prepared ethoxylated Jatropha oil fatty acids exhibit high tendency toward de-emulsification of water in oil emulsion Description: article 2016-01-01T00:00:00Z Synthesis of New 1,3,4-Thiadiazole Derivatives Based Hetrocyclics Salman,Amani Abdel Razig Abdel Aziz, Ahmad M Farag https://repository.sustech.edu/handle/123456789/16803 2017-06-04T08:37:20Z 2016-01-01T00:00:00Z Title: Synthesis of New 1,3,4-Thiadiazole Derivatives Based Hetrocyclics Authors: Salman,Amani Abdel Razig; Abdel Aziz, Ahmad M Farag Abstract: A Facile route to some new 2-(3,5-diphenyl-1,3,4-thiadiazole-2-(3H)-ylidene) derivatives via the reaction of 3-mercapto-1-(1-methylbenzimidazole-2-yl)-3(phenylamino)-2(phenylsulfonyl)- propenone (3) with N-phenylbenzohydrazonyl chloride (4) is reported. Avariety of hydrazonoyl halides reacted with compound 3 affording 1,3,4-thiadiazole derivatives that incorporate a benzimidazole moiety Description: article 2016-01-01T00:00:00Z Preparation and Evaluation of Ethoxylated Jatropha Oil Fatty Acids as Deemulsifier for Crude Oil Emulsion Haitham A Taha Elmugdad Ahmed Ali Khalid https://repository.sustech.edu/handle/123456789/16807 2017-06-04T08:37:34Z 2016-01-01T00:00:00Z Title: Preparation and Evaluation of Ethoxylated Jatropha Oil Fatty Acids as Deemulsifier for Crude Oil Emulsion Authors: Haitham A Taha; Elmugdad Ahmed Ali Khalid Abstract: Oil is produced from reservoirs in association with natural formation water or mixed formation during water injection. Removal of water is an essential step in petroleum refining for many technical reasons. Nonconventional homologous surfactants derived from natural oil such as Jatropha oil were synthesized to replace the commercial surfactants. The synthesis comprises two steps: first hydrolysis of the Jatropha oil followed by ethoxylation. The prepared ethoxylated Jatropha oil fatty acids exhibit high tendency toward de-emulsification of water in oil emulsion Description: article 2016-01-01T00:00:00Z Elemental Analysis of Some Geophagic Soils of Hagar Sari Area Using Inductively Coupled Plasma Technique Adam,Mohammed,Esraa Omer Kanno,Ibrahim Osman Osman,Mohammed Elmubark https://repository.sustech.edu/handle/123456789/16802 2017-06-04T08:34:54Z 2016-01-01T00:00:00Z Title: Elemental Analysis of Some Geophagic Soils of Hagar Sari Area Using Inductively Coupled Plasma Technique Authors: Adam,Mohammed,Esraa Omer; Kanno,Ibrahim Osman; Osman,Mohammed Elmubark Abstract: Fifteen samples of soil lick were collected from HagarSari surroundings at Northern Darfur and analyzed for elemental composition. Inductively coupled plasma technique was used. The results show that the mean percentage mineral contents were as follow: Aluminum (1.968%), Iron (1.707%), Potassium (0.40%), Sodium (0.1679%), Calcium (0.1680%), Magnesium (8.6×10-2%), Manganese (0.24×10-2%),Bbarium (0.0117%), Vanadium (0.573×10-2%), Chromium (0.51×10-2%), Strontium (0.47×10-2%), Zinc (0.253×10-2%), Copper (0.132×10-2%),Lead (0.235×10-2%), andMolybdenum and Nickel showed significantly low concentrations (0.044×10-2%, 0.0435×10-2% respectively). Silver and Cobalt were not detected. Surprisingly, Aluminum and Iron were mostabundant instead of Sodium, Potassium, Calcium and Magnesium which are normally considered to be the essential animal attractants, because they normally showed higher concentration in the licked soil samples almost in all studies concerned with this field for so many years in different countries Description: article 2016-01-01T00:00:00Z