https://repository.sustech.edu/handle/123456789/16800 2026-04-09T00:45:03Z 2026-04-09T00:45:03Z 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

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 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 article

2016-01-01T00:00:00Z 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

Synthesis of New 1,3,4-Thiadiazole Derivatives Based Hetrocyclics Salman,Amani Abdel Razig; Abdel Aziz, Ahmad M Farag 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 article

2016-01-01T00:00:00Z Haitham A Taha Elmugdad Ahmed Ali Khalid https://repository.sustech.edu/handle/123456789/16807 2017-06-04T08:37:34Z 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 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 article

2016-01-01T00:00:00Z 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

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 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 article

2016-01-01T00:00:00Z