Pre-feasibility evaluation of mineral resources: the example of uranium deposits
Gespeichert in:
| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
2013
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | 273 S., [85] Bl. graph. Darst., Kt. |
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Datensatz im Suchindex
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| adam_text | CONTENTS
1. INTRODUCTION
..^TR^7.
17
1.1. BACKGROUND OF THE STUDY 17
1.2. INTENTION AND APPROACH OF THE STUDY 19
1.3. ELEMENTS OF THE STUDY CONCEPT 22
2. URANIUM DEPOSITS 27
2.1. PHYSICAL AND GEOCHEMICAI PROPERTIES OF URANIUM RELEVANT TO DEPOSIT
GENESIS 27
2.2. PROCESSES OF URANIUM CONCENTRATION 29
2.3. ECONOMICALLY RELEVANT URANIUM MINERALS 35
2.4 DEPOSIT TYPES 37
2.4.1. DEPOSIT TYPE CLASSIFICATION SCHEMES 37
2.4.2. UNCONFORMITY-RELATED DEPOSITS 39
2.4.3. SANDSTONE-RELATED DEPOSITS 41
2.4.4. HEMATITE BRECCIA COMPLEX DEPOSITS (IOCG) 43
2.4.5. QUARTZ-PEBBLE CONGLOMERATE DEPOSITS 46
2.4.6. INTRUSIVE DEPOSITS 47
2.4.7. VEIN-TYPE DEPOSITS 50
2.4.8. VOLCANIC AND CALDERA-RELATED DEPOSITS 51
2.4.9. METASOMATITE DEPOSITS 52
2.4.10. METAMORPHIC DEPOSITS 54
2.4.11. COLLAPSE BRECCIA PIPE DEPOSITS 55
2.4.12. SYNSEDIMENTARY DEPOSITS 56
2.4.13. SURFICIAL DEPOSITS 58
2.4.14. URANIUM FROM SEAWATER 59
2.5. WORLD URANIUM RESOURCES 60
2.6. SELECTION OF REFERENCE DEPOSITS FOR FURTHER ANALYSIS 63
3. THE SUPPLY CHAIN OF URANIUM 69
4. URANIUM DEPOSIT MODELS FOR VALUATION PURPOSES 75
4.1. VALUATION STANDARDS AND URANIUM RESOURCE/RESERVE CLASSIFICATION 75
4.2. DEPOSIT MODELS IN DIFFERENT STAGES OF PROJECT DEVELOPMENT 81
4.3. RESOURCE ESTIMATES: BASIC PROCEDURE FOR QUALITY CHECKS 86
4.3.1. PROCEDURE OVERVIEW 86
4.3.2. DEPOSIT TYPE AND SPATIA! CONNECTION WITH KNOWN DEPOSITS 87
4.3.3. EXPLORATION DRILLING METHODS 88
4.3.4.. ADEQUACY OF DRILL-HOLE DOCUMENTATION AND SPACING 90
4.3.5. ADEQUACY OF SAMPLE RECOVERY, HANDLING AND VERIFICATION (QUALITY
CONTROL) 92
4.3.6. ADEQUACY OF ASSAYING METHODS 93
4.3.7. ADEQUACY OF MASS CALCULATIONS AND GRADE DISTRIBUTION MODELS 99
4.3.8. DEPOSIT BOUNDARIES AND BASIC CRITERIA USED FOR ORE/WASTE
SEPARATION 106
4.3.9. CUT-OFF GRADES AS CRITERIA FOR ECONOMICALLY DEFINED ORE
BOUNDARIES 110
4.3.10. RECENT RESOURCE/RESERVE ESTIMATES FOR 370 URANIUM DEPOSITS 114
URANIUM MINING METHODS AND BASIC SELECTION CRITERIA 119
5.1. OVERVIEW OF MINING METHODS 119
5.2. OPEN PIT MINING 120
5.2.1. OREBODY GEOMETRY AND MINING: A SIMPLIFIED APPROACH FOR
PRELIMINARY
EVALUATIONS 120
5.2.2. REFERENCE DEPOSITS: OPEN PIT MINING 123
5.2.3. QUANTIFICATION OF SELECTED DEPENDENCIES WITHIN THE OPEN PIT MINE
REFERENCE
DATA SET 131
5.2.4 GEOLOGICAL CHARACTERISTICS: INFLUENCE ON OPEN PIT MINING 132
5.3. IN SITU LEACHING 136
5.3.1. CONDITIONS AND BASIC ELEMENTS FOR ISL COST EVALUATIONS 136
5.3.2. REFERENCE DEPOSITS: IN SITU LEACHING 142
5.3.3. QUANTIFICATION OF DEPENDENCIES WITHIN THE ISL MINE REFERENCE DATA
SET 146
5.3.4. GEOLOGICAL CHARACTERISTICS: INFLUENCE ON IN SITU LEACHING 147
5.4 UNDERGROUND MINING 149
5.4.1. BASIC ELEMENTS FOR COST ESTIMATES 149
5.4.2. REFERENCE DEPOSITS: UNDERGROUND MINING 149
5.4.3. QUANTIFICATION OF DEPENDENCIES WITHIN THE UNDERGROUND MINE
REFERENCE DATA
SET 155
5.4.4. GEOLOGICAL CHARACTERISTICS: INFLUENCE ON UNDERGROUND MINING
METHODS 157
5.5. MINING METHOD ASSUMPTIONS FOR PRELIMINARY COST ESTIMATES 159
URANIUM PROCESSING METHODS AND BASIC SELECTION CRITERIA 163
6.1. ORE PROPERTIES AND URANIUM PROCESSING STEPS 163
6.1.1. BASIC PROCESS FLOW SCHEME 163
6.1.2. COMMINUTION AND RELEVANT ORE PROPERTIES 164
6.1.3. ORE PREPARATION 168
6.1.4. LEACHING AND RELEVANT ORE PROPERTIES 174
6.1.5. SOLID-LIQUID SEPARATION 178
6.1.6. URANIUM PURIFICATION 180
6.1.7. PRODUCT PRECIPITATION, CALCINING AND PACKAGING 183
6.1.8. EFFLUENTS AND TAILINGS 185
6.1.9. REFERENCE DEPOSITS: CAPITAL COSTS AND OPERATING COSTS FOR
PROCESSING 187
6.2 STANDARD PROCESSING ROUTES FOR COST ESTIMATES 190
7 COST MODELS FOR PRELIMINARY EVALUATIONS 199
7.1 DEFINITIONS, SOURCES OF CONSUMPTION DATA AND COST DATA 199
7.2 MACRO-ECONOMIC ASSUMPTIONS FOR COSTING 201
7.3 COST ESTIMATES FOR STANDARD MINING CASES 202
7.3.1. OPEN PIT MINES 202
7.3.2. ISL OPERATIONS 207
7.3.3. UNDERGROUND MINES 212
7.4 COST ESTIMATES FOR STANDARD PROCESSING/BENEFICIATION ROUTES 215
7.4.1. PRODUCTION QUANTITIES 215
7.4.2. OPERATING COST ESTIMATES 216
7.4.3. CAPITAL COST ESTIMATES 221
7.5. COSTS FOR DECOMMISSIONING AND CLEANUP 223
7.6. SELECTED APPLICATION EXAMPLES 226
7.6.1. EXAMPLE 1: VARIABILITY OF WASTE-TO-ORE RATIOS IN OPEN PIT MINING
227
7.6.2. EXAMPLE 2: VARIABILITY OF MAIN PROCESSING COST INPUT DATA 227
7.6.3. EXAMPLE 3: VARIABILITY OF HYDRAULIC CONDUCTIVITIES IN ISL 228
8. ECONOMIC EVALUATION OF DEPOSIT TYPE EXAMPLES 231
8.1. SELECTION OF A SUITABLE ECONOMIC EVALUATION MODEL 231
8.2. STRUCTURE OF THE ECONOMIC EVALUATION MODEL AND MAIN ASSUMPTIONS 232
8.3. EVALUATIONS OF THE STANDARD CASES 235
8.4. BREAK-EVEN CALCULATIONS FOR THE QUARTZ-PEBBLE CONGLOMERATE TYPE
STANDARD
CASE 238
9. SUMMARY AND CONCLUSIONS 243
10. REFERENCES 251
11. LIST OF FIGURES 271
12. LIST OF TABLES 273
APPENDIX A - F
|
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| dewey-search | 622.184932 |
| dewey-sort | 3622.184932 |
| dewey-tens | 620 - Engineering and allied operations |
| discipline | Bergbau / Hüttenwesen |
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| spelling | Bartz, Stefan 1964- Verfasser (DE-588)1046468847 aut Pre-feasibility evaluation of mineral resources the example of uranium deposits vorgelegt von Stefan Bartz 2013 273 S., [85] Bl. graph. Darst., Kt. txt rdacontent n rdamedia nc rdacarrier Freiberg (Sachsen), Techn. Univ., Diss., 2013 Aufbereitung (DE-588)4003500-1 gnd rswk-swf Uranproduktion (DE-588)4187183-2 gnd rswk-swf Uranbergbau (DE-588)4132253-8 gnd rswk-swf Uranlagerstätte (DE-588)4187165-0 gnd rswk-swf Feasibility-Studie (DE-588)4130775-6 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Uranlagerstätte (DE-588)4187165-0 s Uranproduktion (DE-588)4187183-2 s Aufbereitung (DE-588)4003500-1 s Feasibility-Studie (DE-588)4130775-6 s Uranbergbau (DE-588)4132253-8 s DE-604 SWB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027769424&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Bartz, Stefan 1964- Pre-feasibility evaluation of mineral resources the example of uranium deposits Aufbereitung (DE-588)4003500-1 gnd Uranproduktion (DE-588)4187183-2 gnd Uranbergbau (DE-588)4132253-8 gnd Uranlagerstätte (DE-588)4187165-0 gnd Feasibility-Studie (DE-588)4130775-6 gnd |
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| title | Pre-feasibility evaluation of mineral resources the example of uranium deposits |
| title_auth | Pre-feasibility evaluation of mineral resources the example of uranium deposits |
| title_exact_search | Pre-feasibility evaluation of mineral resources the example of uranium deposits |
| title_full | Pre-feasibility evaluation of mineral resources the example of uranium deposits vorgelegt von Stefan Bartz |
| title_fullStr | Pre-feasibility evaluation of mineral resources the example of uranium deposits vorgelegt von Stefan Bartz |
| title_full_unstemmed | Pre-feasibility evaluation of mineral resources the example of uranium deposits vorgelegt von Stefan Bartz |
| title_short | Pre-feasibility evaluation of mineral resources |
| title_sort | pre feasibility evaluation of mineral resources the example of uranium deposits |
| title_sub | the example of uranium deposits |
| topic | Aufbereitung (DE-588)4003500-1 gnd Uranproduktion (DE-588)4187183-2 gnd Uranbergbau (DE-588)4132253-8 gnd Uranlagerstätte (DE-588)4187165-0 gnd Feasibility-Studie (DE-588)4130775-6 gnd |
| topic_facet | Aufbereitung Uranproduktion Uranbergbau Uranlagerstätte Feasibility-Studie Hochschulschrift |
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