矿石物相中元素分析检测方案(X射线衍射仪)

inituat Work at Work Title： Rapid mineral identification and quantitative analysis of disseminated Gold Ore Introduction： The inXitu Terra combined XRD/XRF instrument utilizes a patented method for rapid and easy collection andprocessing of XRD data. With only~15mg of sample， Terra is able to collect the entire practical two-theta rangesimultaneously. With no mechanical goniometer or associated moving parts， Terra is both precise and accurate. With theunique ability to collect both position (XRD) and energy (XRF) information simultaneously， Terra is able to provide a vastamount of information with one analysis. The principal of this operation is shown below. Sample preparation： The samples were received powdered and ready for the samplechamber shown below. Samplepreparation with Terra is truly easy， requiring only that the sample pass through a 150um sample sieve as shown below. Summary： The InXitu Terra XRD/XRF was used to analyze 6 samples taken from the Bald Mountain gold mine， near ElkoNevada. The samples were divided into three groups of two based on there performance in a leach pad. The Samples thatabsorbed the leach solution were labeled“BAD" while the samples that allowed for optimum irrigation were labeled"GOOD”and the intermediate was labeled "FAIR". The samples were received ground and powdered to less than 150um， a 15mgscoop of each sample was run for 10 mins. The resulting diffraction patterns are shown below with major phases identified. inXitu inc. 2551 Casey Avenue， Suite A， Mountain View， CA 94043 Comments： This is a simple application in which there are obvious differences in the diffraction patterns between the good，fair， and bad material. The bad material is full of clays that expand and absorb the leaching solution， haulting the percolation，resulting in an incomplete processing of the ore material. By identifying the ore rock with clays we can divert that materialaway from the leach pads to allow for proper irrigation. Samples Minerals Bad 1 Bad 5 Fair 19 Fair 21 Good 4 Good 5 Quartz 25.4 61.2 56.5 83.3 91.1 83.7 Clays 46.3 9.9 5.2 1.6 n/a n/a Calcite 3 16.9 n/a n/a 8.9 2.6 Muscovite 3.2 6 5.6 8.3 n/a 8.2 Other 22.1 6.3 32.7 7 n/a 4.9 Tena 91 76 614530 15 40 50 90 7560453015 tel fax email：sales@inxitu.com www.inxitu.com ·