Ucore Rare Metals Inc.

Published : June 07th, 2016

Ucore Separates HREE and LREE Classes at 99%+ Purity via SuperLig®-One Pilot Plant

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Ucore Separates HREE and LREE Classes at 99%+ Purity via SuperLig®-One Pilot Plant

June 7, 2016 - HALIFAX, NOVA SCOTIA - Ucore Rare Metals, Inc. (TSXV:UCU) (OTCQX:UURAF) ('Ucore' or the 'Company') is pleased to update on the continuing performance of the SuperLig®-One rare earth element ('REE') separation pilot plant (the 'Plant' or 'SuperLig®-One'.)

Pregnant leach solution ('PLS') derived from the Company's Bokan-Dotson Ridge project in Alaska has been treated by the SuperLig®-One Molecular Recognition Technology ('MRT') Plant, at the IBC Advanced Technologies, Inc. ('IBC') Utah facility. The PLS was initially separated from impurity metals ('Gangue Metals') (see Ucore Press Release ('PR'), dated May 9, 2016) followed by the removal of scandium (see Ucore PR dated May 24, 2016.)

In the latest separation circuit, the PLS has now been separated into two classes of REE: heavy REE, comprised of samarium to lutetium ('HREE') and light REE, comprised of lanthanum to neodymium plus yttrium ('LREE'). The class separations have been achieved at 99%+ purity and 99%+ recovery.

The foregoing represents the final stage of processing prior to the separation of individual Critical HREE ('Heavy CREOs') from the remaining PLS. The Heavy CREOs, which include dysprosium, terbium and europium, are classified by the US Department of Energy as being critically important to the near term viability of domestic clean energy applications and industries.

'The SuperLig®-One pilot facility has again delivered results that represent near quantitative levels of recovery and purity,' said Jim McKenzie, President and CEO of Ucore. 'This ability differentiates MRT from less selective technologies such as solvent extraction, ion exchange, and precipitation ('Legacy Separation Technologies'), which consume significant quantities of solvents and hazardous chemicals. These legacy methodologies are also characterized by substantial waste generation, much of it in the form of unrecoverable REE. SuperLig®-One, by contrast, is the first commercial scale green chemistry platform that we are aware of capable of separating and recovering HREE and LREE classes at both a 99%+ level of purity and a 99%+ level of recovery.'

Since announcement of the completion of SuperLig® certifications; PLS analysis; automation control verification; water testing; process flow testing of the Plant; REE separation, as a group, from the Gangue Metals; and scandium separation from the group of REE; the following results have been achieved using the SuperLig®-One Plant:

  • Separation of REE into HREE and LREE Classes - HREE and LREE groups were separated from each other at the 99%+ level. Each class contains a minimum of 99% of the HREE and LREE, respectively, originally present in the PLS. Recovery of greater than 99% of 99%+ pure HREE and LREE is in sharp contrast to the processing of REE-bearing solutions using other, less selective Legacy Separation Technologies, wherein large percentages of the initial REE may end up as waste in tailings. The highly selective, green chemistry SuperLig®-One separations make the HREE and LREE classes available for further separations, as desired, of individual pure REE free from Gangue Metals.
  • REE Purity - Purity of each of the HREE and LREE classes is greater than 99% versus Gangue Metals and other REE. Prior removal of the Gangue Metals and separation of the REE into distinct classes greatly simplifies the further purification of the PLS to obtain individual REE.
  • Verification of Purities and Confirmation of Scale-up Parameters - Purities and recoveries of the HREE and LREE classes from the PLS have been verified analytically at IBC using inductively coupled plasma spectroscopy ('ICP'.) Purities and recovery rates obtained are consistent with those found earlier in lab-scale test work at IBC (see PR dated March 2, 2015), in which purities of the individually separated REE were verified by an independent analytical laboratory, confirming that the SuperLig®-One Plant is scaling as expected. Scaling of the Plant is enhanced by the numerical knowledge of all operating parameters at the molecular level, which were determined previously at laboratory scale. Subsequent scaling then follows directly using well known chemical engineering principles, as seen in the functioning SuperLig®-One Plant.

The SuperLig®-One Plant offers a disruptive technology platform for diversifying, from commercial, geographical and technological perspectives, the separation and processing of REE. Currently concentrated in China, present-day REE processing is oligopolistic and depends upon an installed base of Legacy Separation Technologies. The introduction of efficient, innovative, green chemistry REE production using MRT is expected to substantially alter this dynamic and strengthen the domestic, commercial, and military economies of the United States and other nations that depend on reliable and efficiently processed sources of rare metals, such as REE, for an environmentally sustainable and prosperous future.

Advanced Development

The next stages of the SuperLig®-One Plant operation will demonstrate the separation of the individual Heavy CREOs, as well as two HREE sub-groups, as follows:

  • Separation and recovery of dysprosium at 99.99% purity.
  • Individual separation and recovery of terbium and europium, each at 99%+ purity.
  • Separation and recovery of an HREE sub-group containing holmium, erbium, thulium, ytterbium, and lutetium at the 99%+ purity level. This sub-group will be retained for further separations.
  • Separation and recovery of an HREE sub-group containing samarium and gadolinium at the 99%+ purity level. This sub-group will be retained for further separations.

The recently separated 99%+ pure LREE class will be retained for future separations, as required.

Following confirmatory testing of each unit operation, the Plant will undergo a continuous run of PLS.

For further information on the SuperLig®-One Pilot Plant Mission Summary, please see the following link: http://ucore.com/superlig-one

For background on traditional approaches to separation of REE and the historical advance offered by MRT, please refer to the recently published White Paper on Separation of Rare Earth Elements, entitled 'Molecular Recognition Technology: A Green Chemistry Process for Separation of Individual Rare Earth Metals', at the following link: http://ucore.com/academic-papers

Steven R. Izatt, President and CEO of IBC, has approved the scientific and technical content of this news release and is the Qualified Person responsible for its accuracy. Mr. Izatt, Registered Member of the Society for Mining, Metallurgy, and Exploration ('SME'), holds a B.A. degree in Chemistry from Brigham Young University ('BYU'), as well as an M.S. degree in Chemical Engineering Practice and an M.S. degree in Technology and Policy, both from the Massachusetts Institute of Technology ('MIT'.)


Ucore Rare Metals is a development-phase company focused on rare metals resources, extraction and beneficiation technologies with near term potential for production, growth and scalability. On March 3, 2015, Ucore announced the right to acquire a controlling ownership interest in the exclusive rights to IBC SuperLig® technology for rare earths and multi-metallic tailings processing applications in North America and associated world markets. The Company has a 100% ownership stake in the Bokan project. On March 31, 2014, Ucore announced the unanimous support of the Alaska State Legislature for the investment of up to USD $145 Million in the Bokan project at the discretion of the Alaska Import Development and Export Agency ('AIDEA').

For further information, please contact Mr. Jim McKenzie, President and Chief Executive Officer of Ucore Rare Metals Inc. at: +1 (902) 482-5214 or visit http://www.ucore.com

Cautionary Notes

This press release includes certain statements that may be deemed 'forward-looking statements'. All statements in this release, other than statements of historical facts, that address future exploration drilling, exploration activities, research and development timelines, and events or developments that the Company expects, are forward looking statements. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include exploitation and exploration successes or setbacks, research and develop successes or setbacks, continued availability of financing, and general economic, market or business conditions.

MRT is at advanced testing stages and has yet to be proven, at a commercial scale, for the separation of rare earth elements. The Company has not yet released an economic assessment on the use of MRT for the separation of rare earth elements and does not yet have any specific contracts for the processing of rare earths using MRT.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined by the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Read the rest of the article at www.publicnow.com
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Ucore Rare Metals Inc.

ISIN : CA90348V1031
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Ucore Rare Metals is a uranium exploration company based in Canada.

Ucore Rare Metals holds various exploration projects in Canada.


Ucore Rare Metals is listed in Canada and in United States of America. Its market capitalisation is CA$ 178.3 millions as of today (US$ 142.6 millions, € 124.9 millions).

Its stock quote reached its lowest recent point on December 24, 2008 at CA$ 0.03, and its highest recent level on February 19, 2021 at CA$ 2.97.

Ucore Rare Metals has 270 140 000 shares outstanding.

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Financings of Ucore Rare Metals Inc.
5/27/2008Announces $4.0 Million Private Placement
Nominations of Ucore Rare Metals Inc.
2/18/2014Ucore Appoints Johnson to Advisory BoardCc:
10/31/2013Ucore Appoints Clarke as Board Member
10/31/2013Appoints Clarke as Board Member
8/13/2012Ucore Appoints Hammen to Advisory Board
5/14/2012Ucore Appoints Ryan as Board Member
1/4/2012Ucore Appoints Collison as Chief Operating Officer
Project news of Ucore Rare Metals Inc.
10/21/2013Ucore Announces Resource Upgrade for Bokan Dotson-Ridge
1/15/2013Ucore Files Preliminary Economic Assessment 43-101 Technical...
1/15/2013Files Preliminary Economic Assessment 43-101 Technical Docum...
7/13/2012Ucore Applauds Rep. Young's Commitment to Mining Alaskan Nat...
6/14/2012Ucore Initiates Bulk Sample in Preparation for Production Sc...
4/18/2012Ucore Completes Underground Mine Design for Bokan Project
1/23/2012Ucore Releases 2011 Bokan Drill Results Pending Augmented Re...
1/16/2012Ucore Confirms Widespread Rare Earth Mineralization In Centr...
10/3/2011Ucore Reports 85-90% Recovery of Rare Earths in Bokan Metall...
7/19/2011(Bokan Mountain)Reports on 2011 Bokan Field Program
5/10/2011(Bokan Mountain)Releases 2011 Mine Scoping and Resource Development Plan
4/5/2011(Bokan Mountain)Recovers Over 4000 Metres of Historical Drill Core
3/7/2011Ucore Releases NI 43-101 Compliant Resource for Bokan
2/15/2011Ucore Completes Washington Meetings & Sets Out Strategy for ...
7/15/2010(Bokan Mountain)Drilling Commences at Ucore's Bokan - Dotson Ridge Heavy Rar...
4/20/2010(Bokan Mountain)State of Alaska Announces Support for Expedited Permitting a...
12/14/2009(Bokan Mountain)Deep Drilling at Dotson Trend Shows Heavy Rare Earth Mineral...
10/20/2009(Bokan Mountain)Provides Update on Bokan Drill Program
9/16/2008(Lost Pond)Ucore Uranium Options 50% Interest in Lost Pond Property to ...
7/16/2008(Lost Pond)Reports High Grade Rare Earth Drill Results from Lost Pond
5/15/2008(Bokan Mountain)Bokan Mountain Drill Mobilization Underway
4/10/2008(Bokan Mountain)Receives 2008 Drill Permit for Bokan Mountain
2/6/2008(Bokan Mountain) Reports 15.2 Meters Grading 0.42% U3O8 from Bokan Mountain
Corporate news of Ucore Rare Metals Inc.
8/2/2016Ucore Announces Sudden Passing of Chief Operating Officer Ke...
7/29/2016Ucore Announces Closing of Royalty Conversion
7/7/2016Ucore Announces Conversion of Royalty
7/5/2016Ucore Separates Dy and Ho Sub-Groups at 99%+ Purity via Supe...
6/7/2016Ucore Separates HREE and LREE Classes at 99%+ Purity via Sup...
5/30/2016Ucore Announces Increase of Shareholder Investment to $7.3 M...
5/24/2016Ucore Separates Scandium at 99%+ Recovery via SuperLig®-One ...
5/9/2016Ucore Updates on Early-Stage Performance of SuperLig®-One Pi...
4/19/2016Högel Joins Ucore Advisory Board
1/18/2016Ucore Comments on Royalty Conversion and Positive Outlook of...
1/18/2016Ucore Rare Metals Announces Corporate Developments
1/15/2016Ucore Rare Metals Announces Corporate Developments
12/14/2015Ucore Closes $6.9 Million Royalty Financing with Option to I...
9/11/2015Ucore Grants Incentive Stock Options
8/17/2015Ucore Rare Metals Enters Into Second Royalty Agreement to Ra...
7/8/2015Ucore Commissions Design and Construction of SuperLig(R)-One...
6/26/2015Ucore Adopts Advance Notice By-Law
3/11/2015The REE Basket Price Deception and the Clarity of OPEX
3/3/2015IIROC Trading Resumption - UCU
3/3/2015Ucore Secures Rights to SuperLig(R) Molecular Recognition Te...
3/3/2015IIROC Trading Halt - UCU
3/2/2015Ucore Successfully Separates Entire Suite of Individual Rare...
2/3/2015Ucore Releases Complete 2014 Drill Assays in Preparation for...
1/28/2015Ucore Extends Bokan Mineralization at Significant Depth
1/14/2015Ucore Engages Ausenco for Preparation of Feasibility Study f...
1/14/2015Engages Ausenco for Preparation of Feasibility Study for Bok...
11/12/2014IIROC Trading Resumption - UCU
11/12/2014Ucore Uses Molecular Recognition Technology to Generate 99%+...
11/12/2014IIROC Trading Halt - UCU
10/16/2014Ucore's McKenzie to Deliver Presentation to Rare Earths Conf...
10/15/2014Ucore Issues RFP for Bankable Feasibility Study
10/7/2014Ucore Updates on Research by University of Alaska Fairbanks
8/11/2014Dostal's Paper on Bokan Mineralization Accepted by Leading I...
8/7/2014Ucore Applauds Senator Murkowski and National Mining Associa...
7/30/2014Ucore Reports That USGS Research Continues at Bokan Heavy RE...
7/23/2014Ucore Provides Operational Update on Bokan - Dotson Ridge Pr...
2/19/2014Alaska Legislation Sets Out $145 Million Bond Funding for Uc...
1/13/2014Ucore Comments on Escalating HREE Supply Concerns in US Capi...
12/31/2013Ucore Announces Completion of Private PlacementCc:
10/21/2013Announces Resource Upgrade for Bokan Dotson-Ridge
9/16/2013Ucore Receives USFS Permitting for Bokan - Dotson Ridge Fiel...
9/16/2013Receives USFS Permitting for Bokan - Dotson Ridge Field Prog...
7/16/2013Ucore Announces Commissioning of Plan of Ops
7/16/2013Announces Commissioning of Plan of Ops
6/25/2013Ucore Announces Augmented Results of Large Scale XRT Ore Sor...
6/25/2013Announces Augmented Results of Large Scale XRT Ore Sorting
6/13/2013Ucore Comments on House Armed Services Committee Dysprosium ...
6/11/2013Ucore Grants Incentive Stock Options
6/11/2013Grants Incentive Stock Options
6/11/2013Grants Incentive Stock Options
5/13/2013Announces Closing of Offering
4/23/2013Announces Filing of Final Prospectus
3/15/2013Announces Filing of Preliminary Short Form Prospectus
3/11/2013Rare Earth Expert Jack Lifton Names Ucore on HREE Producer S...
2/1/2013BNN Interviews Jim McKenzie, President/CEO, Ucore Rare Metal...
1/25/2013Bokan Top 10 Advantages [Updated]
1/25/2013Bokan Top 10 Advantages
10/3/2012Ucore Reports Dysprosium Separation Breakthrough
10/1/2012US Department of Defense Contracts With Ucore for Metallurgi...
10/1/2012US Department of Defense Contracts With Ucore for Metallurgi...
9/25/2012Ucore Welcomes Alaska State Initiative to Support Bokan Meta...
9/25/2012Welcomes Alaska State Initiative to Support Bokan Metallurgi...
8/20/2012Profit from Ucore's Astonishing "Spider Web" Technology - En...
8/13/2012Ucore Confirms Effectiveness of SP Technology to Remove 99% ...
8/13/2012Ucore Confirms Effectiveness of Solid Phase Technology to Re...
7/4/2012Ucore Comments on The Announcement Of A Chinese Rare Earth S...
5/31/2012Media Update
5/3/2012Media Update
4/6/2012Media Update
3/6/2012Ucore Confirms Effectiveness of XRT Ore Sorting at Productio...
3/5/2012Media Update
2/2/2012Ucore Releases Rare Earth Mobile Applications
10/25/2011Media Update
10/11/2011Media Update
9/20/2011Media Update
8/19/2011Media Update
8/10/2011Ucore Hosts 2011 Alaska Rare Earth Conference
8/3/2011Ucore Receives Priority Permitting Assistance from US Dept o...
8/2/2011Media Update
7/19/2011Ucore Reports on 2011 Bokan Field Program
6/15/2011Ucore Comments on Dysprosium Price Gains
6/15/2011Comments on Dysprosium Price Gains
6/6/2011Ucore Acquires New Strategic Rare Earth Properties in Alaska
5/10/2011Ucore Releases 2011 Mine Scoping and Resource Development Pl...
4/5/2011Ucore Recovers Over 4000 Metres of Historical Drill Core
2/15/2011Completes Washington Meetings & Sets Out Strategy for Heavy ...
6/28/2010Changes Name to Ucore Rare Metals Inc.
9/25/2008Reports Favourable Light and Heavy Rare Earth Assays from Bo...
7/30/2008Reports 2.57 Metres Grading 0.50% U3O8 from Bokan Mountain
6/19/2008Bokan Mountain Drill Program in Progress
6/10/2008Updates Board at Annual Meeting
4/15/2008Featured in Online Podcast Interview
3/18/2008Hole 1 at Bokan Returns 50 Metres Grading 0.47% U3O8
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