Document Details Document Type : Article In Journal  Document Title : Activation of Khulais bentonite using fine grinding technique تنشيط خام البنتونايت بمحافظة خليص بطريقة الطحن الناعم   Subject : Mining Engineering  Document Language : Arabic  Abstract : ABSTRACT: Khulais region in Saudi Arabia has a big reserve of calcium bentonite which does not satisfy the request specifications of commercial bentonite. Some studies has been done to activate this bentonite by addition of sodium carbonate in a wet condition but it gave low activation which are faraway from the required specifications. In this work, the grinding energy was used in dry state to activate Khulais bentonite with different percentages of sodium carbonate. Also a few percentage of a commercial certificated bentonite was mixed to obtain more activation. The activation of bentonite was measured for the following properties: free swell index; plasticity index; methylene blue value; cation exchang capacity; total surface area, filtration loss; density and apparent viscosity. Then, the values of these properties were compared with the required specifications for drilling mud. From the obtained results, this research work gave the following new approach: The optimum conditions of Khulais calcium bentonite to become an active bentonite as near as possible to the specification of drilling mud are when it is mixed with 5% commercial certificated bentonite and 6% sodium carbonate in a grinding mill for one hour in dry state.  ISSN : 1319-1047  Journal Name : Engineering Sciences Journal  Volume : 19  Issue Number : 1  Publishing Year : 1429 AH 2008 AD  Article Type : Article  Added Date : Tuesday, March 29, 2011  Researchers Researcher Name (Arabic) Researcher Name (English) Researcher Type Dr Grade Email محمد نور ناهر المغربي Almagrhbi, Mohamed-Noor Naher Investigator Doctorate malmagrabii@yahoo.com محمود إبراهيم أبوشوك Aboushook, Mahmoud Ibrahim Researcher Doctorate profdraboushook@gmail.com Files File Name Type Description  29389.pdf pdf تنشيط خام البنتونايت بمحافظة خليص بطريقة الطحن الناعم Back To Researches Page