Document Details

Document Type : Project 
Document Title :
Recovery of molybdenum and cobalt from waste catalyst used in the treatment Alajdrugenih resulting from oil refineries in the Kingdom.
استرجاع الموليبدنم والكوبالت من نفايات العامل المساعد المستخدم في المعالجة الايدروجينية الناتجة عن مصافي البترول في المملكة.
 
Document Language : Arabic 
Abstract : The majority of oil refineries in Saudi Arabia a catalyst of the type of molybdenum and cobalt in processing Alajdrugenih. The ages of operation for this type of catalyst from 3-4 years after which the disposal of waste catalyst may either burial, but with the possibility of leakage into the ground and the contamination of soil or waste sold to specialized companies recovering waste re n. The research was conducted to study the possibility of recovery of molybdenum and cobalt from waste catalyst resulting from oil refineries national roasting waste with either sodium chloride or with sodium carbonate and extraction with water. Has been studying the impact of various factors time and temperature of extraction and weighted percentage of water extraction to the solid waste and waste grain size of the degree of molybdenum and cobalt extraction. The study results showed that the degree of extraction increases with molybdenum ratio weighted for water extraction to solid waste, especially with increasing time of extraction. The research found significant impact of increasing both the temperature only Stkhalas and time, but Stkhalas the degree of recovery of molybdenum compared to the impact of increasing the percentage of weighted-water extraction to the solid waste - and the results show the impact slightly reduce the size of grains of the catalyst is less than the pass-through sieve Tyler Standard No. 35 the degree of molybdenum extraction. And found that the recovery of molybdenum largest waste roasted with sodium carbonate by the waste roasted with sodium chloride under the same circumstances. As well as the results indicated the small degree of cobalt extraction waste when roasting with sodium chloride and cobalt extraction almost no waste when roasting with sodium carbonate. The study recommended roasting waste catalyst with 50% by weight of sodium carbonate for one hour, followed by extraction with water at of 90 C for two hours and the use of mass percentage of water extraction to waste roasted solid Tsawi 10 where the degree of extracting molybdenum from waste catalyst 95.1%, and the degree of extraction of cobalt 1.1%. 
Publishing Year : 1427 AH
2007 AD 
Sponsor Name : KAU 
Sponsorship Year : 1427 AH
2007 AD 
Added Date : Thursday, October 22, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
محمد إسماعيل عبدالسلامabdulsalam, mohammed IsmailInvestigatorDoctorate 

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