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ผลงานตีพิมพ์ในวารสารวิชาการHierarchical macro-mesoporous pt deposits on gold microwires for efficient methanol oxidationผู้แต่ง: Heim, M., Wattanakit, C., Reculusa, S.,  Dr.Chompunuch Warakulwit, Assistant Professor , Dr.Jumras Limtrakul, Professor , Ravaine, S., Kuhn, A., วารสาร:  
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Mineralogy, Chemical Composition and Ceramic Properties of Clay Deposits in Southern Thailand) ผู้เขียน:Sunaree Bordeepong, Darunee Bhongsuwan, Thongchai Pungrassami, Tripob Bhongsuwan สื่อสิ่งพิมพ์:pdf AbstractThe mineralogical, chemical composition and ceramic properties of clay deposits from southern Thailand were studied to assess their potential for use in the ceramics industry. Samples were collected from 11 localities where clay mining and processing plants are active in southern Thailand. X-ray powder diffraction patterns with sample treatments by glycolation and heat treatment were used to analyze the clay and non-clay minerals and the X-ray fluorescence method was used for elemental analysis. The data collected from these techniques showed that the clay minerals were kaolinite, halloysite and illite and the non-clay minerals consisted of quartz, microcline, gibbsite and anatase. The results from the chemical analysis of the clay samples showed that the most important components were SiO2 (46.75–63.17%) and Al2O3 (20.01–37.03%), since they have a conclusive influence on the refractoriness and strength of the final product. Firing characteristics from 800 to 1,300 ?C were used to determine firing shrinkage, color, bulk density, modulus of rupture, water absorption and phase transformation. Ranong clays had the necessary properties for the manufacturing of ceramic products. However, for clays from Nakhon Si Thammarat, Surat Thani and Songkhla, it will be necessary to add other components to enhance their workability. |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Geology and Geological Structure of Potash and Rock Salt Deposits in Chalerm Phrakiat District, Nakhon Ratchasima Province in Northeastern Thailand) ผู้เขียน:Parkorn Suwanich สื่อสิ่งพิมพ์:pdf AbstractPotash and rock salt minerals were examined from core holes drilled by the Department of Mineral Resources, Thailand in Chalerm Phrakiat district, Nakhon Ratchasima province in Northeast Thailand. In total, 7 boreholes were studied to explain the geology and geological structure of the potash and rock salt deposits. There were two beds of rock salt that made up the Middle and Lower Rock Salt units. However, some holes were found only in the Lower Salt bed. The potash minerals found only in the Lower Salt bed were both low grade “carnallite” and high grade “sylvite”, (one of the major Kelements used to produce chemical fertilizer), as well as the magnesium mineral “tachyhydrite”. The geological structure observed in the cross section of each borehole showed facies of potash and rock salt in the area. The carnallite and tachyhydrite were deposited in the local salt basin, whereas the rock salt had formed as a ridge, dome or pillow of the salt layer. The sylvite mineral (the best potash mineral for agricultural fertilizer) was deposited between these two structures or at the frank of the dome or pillow. This information supports the salt dome theory that explains the origin of sylvite deposited in Thailand. |
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