Outstanding Results Achieved From Mechanical Sorting Tests Completed at TOMRA’s Testing Facility in Sydney, Australia and Wedel, Germany
VANCOUVER, British Columbia, Feb. 27, 2020 (GLOBE NEWSWIRE) — Novo Resources Corp. (“Novo” or the “Company”) (TSX-V: NVO; OTCQX: NSRPF) has recently conducted mechanical, sensor based sorting tests on Egina and Beatons Creek bulk sample material at TOMRA’s Sydney, Australia and Wedel, Germany testing facilities.
Highlights:Sydney, Australia: Test work conducted utilizing a TOMRA COM XRT 1200 – Gen 1.0 mechanical sorter using X-Ray Transmission (“XRT”) scanning is summarized below:Egina:Testing was conducted on 5.4 t of material sieved to three size fractions: +0/-6mm, +6/-18mm and +18/-50mm, with known quantities of test nuggets introduced into the samples commensurate with each size fraction to test recovery effectiveness.Outstanding results were achieved for all Egina size fractions, (please refer to summary table below) with 100% of gold recovered in 1.2% of the mass of the +18/-50mm size fraction, 100% of gold recovered in 0.3% of the mass of the +6/-18mm size fraction and 92% (by weight) of gold recovered in 0.1% of the mass of +0/-6mm size fraction. To better test recovery of the +0/-6mm size fraction, bulk material was delivered to TOMRA’s laboratory in Wedel, Germany for testing on a new prototype fines sorting machine (please refer to “Wedel, Germany” summary below).Beatons Creek:Testing in Sydney was conducted on 2.8 t of crushed (-50 mm) and screened Beatons Creek bulk sample material sieved to two size fractions: +6/-18mm and +18/-50mm.Analyses conducted as part of this test work generated a calculated head grade of 4.20 gpt Au for the sample.Testing was conducted at near expected production rates for this material, with the +18/-50mm size fraction tested at 51 tph and +6/-18mm size fraction tested at 23 tph. An impressive 94% of gold was recovered in 43% of the mass of the +18/-50 mm fraction and 82% of gold was recovered in 37% of the mass of the +6/-18 mm fraction.To better test recovery of the +0/-6MM size fraction, bulk material was delivered to TOMRA’s laboratory in Wedel, Germany for testing on a new prototype fines sorting machine (please refer to “Wedel, Germany” summary below).Wedel, Germany: Test work conducted on TOMRA’s Fine Diamond Recovery (“FDR”) prototype, with ultra high resolution X-Ray Transmission (“XRT”) scanner is summarized below:Egina:Outstanding results achieved for Egina +0/-6mm sized material from TOMRA’s FDR, with 100% of introduced gold nuggets recovered, the smallest of which is 0.7mm smallest dimension (see Figure 1 depicting recovered gold nuggets).120 out of 120 nuggets collectively weighing 7.17g were recovered in just 35.5g of concentrate from 54kg of test material, representing 100% recovery in 0.07% of the original mass. (see video of nuggets being processed and sorted by the FDR: https://www.youtube.com/watch?v=nBGTDL3NSQ8&feature=youtu.be).Beatons Creek:A sub-sample of the Beatons Creek +0/-6mm was further sieved into +0/-2mm and +2mm/-6mm size fractions. Three trials were conducted on the coarser size fraction and four trials on the finer size fraction, with each test running adjusted scanning programs to alter the mass pull into accepts and rejects.Samples of the accept and reject material have been delivered to Minanalytical Laboratories in Perth, WA and subjected to ChrysosTM PhotonAssay to determine gold content to assess recovery. Novo will notify the market of the effectiveness of this sorting method once results have returned.Summary of mechanical sorting test results from a 5.4 tonne Egina bulk sample (Sydney):