CA1121761A - Separation of calcium-containing material from ore - Google Patents
Separation of calcium-containing material from oreInfo
- Publication number
- CA1121761A CA1121761A CA000325906A CA325906A CA1121761A CA 1121761 A CA1121761 A CA 1121761A CA 000325906 A CA000325906 A CA 000325906A CA 325906 A CA325906 A CA 325906A CA 1121761 A CA1121761 A CA 1121761A
- Authority
- CA
- Canada
- Prior art keywords
- ore
- coupling agent
- limestone
- particles
- coated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000463 material Substances 0.000 title claims abstract description 56
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000011575 calcium Substances 0.000 title claims abstract description 36
- 229910052791 calcium Inorganic materials 0.000 title claims abstract description 36
- 238000000926 separation method Methods 0.000 title claims abstract description 28
- 235000019738 Limestone Nutrition 0.000 claims abstract description 151
- 239000006028 limestone Substances 0.000 claims abstract description 151
- 239000002245 particle Substances 0.000 claims abstract description 138
- 239000007822 coupling agent Substances 0.000 claims abstract description 129
- 238000000034 method Methods 0.000 claims abstract description 79
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 55
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 55
- 235000014380 magnesium carbonate Nutrition 0.000 claims abstract description 55
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 54
- 239000007850 fluorescent dye Substances 0.000 claims abstract description 51
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 41
- 229910021532 Calcite Inorganic materials 0.000 claims abstract description 28
- 150000001412 amines Chemical class 0.000 claims abstract description 25
- 230000003750 conditioning effect Effects 0.000 claims abstract description 25
- 230000007717 exclusion Effects 0.000 claims abstract description 19
- 230000001143 conditioned effect Effects 0.000 claims abstract description 18
- 150000001735 carboxylic acids Chemical class 0.000 claims abstract description 17
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 12
- -1 aliphatic amines Chemical class 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims description 45
- 238000000576 coating method Methods 0.000 claims description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthene Chemical compound C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 claims description 26
- 239000010459 dolomite Substances 0.000 claims description 25
- 229910000514 dolomite Inorganic materials 0.000 claims description 25
- 150000004760 silicates Chemical class 0.000 claims description 21
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 14
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 14
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 14
- 239000005642 Oleic acid Substances 0.000 claims description 14
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 14
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 14
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 230000005670 electromagnetic radiation Effects 0.000 claims description 11
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 10
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical group CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 claims description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 8
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 7
- 239000000194 fatty acid Substances 0.000 claims description 7
- 229930195729 fatty acid Natural products 0.000 claims description 7
- 150000004665 fatty acids Chemical class 0.000 claims description 7
- 239000003921 oil Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 6
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 6
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 claims description 5
- 229960002446 octanoic acid Drugs 0.000 claims description 5
- 239000003784 tall oil Substances 0.000 claims description 5
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical group CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- HHSPVTKDOHQBKF-UHFFFAOYSA-J calcium;magnesium;dicarbonate Chemical compound [Mg+2].[Ca+2].[O-]C([O-])=O.[O-]C([O-])=O HHSPVTKDOHQBKF-UHFFFAOYSA-J 0.000 abstract description 2
- 239000000975 dye Substances 0.000 description 29
- 239000006185 dispersion Substances 0.000 description 23
- 238000005507 spraying Methods 0.000 description 12
- 239000012535 impurity Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000004513 sizing Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 4
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 4
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 4
- XXUJMEYKYHETBZ-UHFFFAOYSA-N ethyl 4-nitrophenyl ethylphosphonate Chemical compound CCOP(=O)(CC)OC1=CC=C([N+]([O-])=O)C=C1 XXUJMEYKYHETBZ-UHFFFAOYSA-N 0.000 description 4
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 4
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 4
- VKOBVWXKNCXXDE-UHFFFAOYSA-N icosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCC(O)=O VKOBVWXKNCXXDE-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- SECPZKHBENQXJG-FPLPWBNLSA-N palmitoleic acid Chemical compound CCCCCC\C=C/CCCCCCCC(O)=O SECPZKHBENQXJG-FPLPWBNLSA-N 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- MHZGKXUYDGKKIU-UHFFFAOYSA-N Decylamine Chemical compound CCCCCCCCCCN MHZGKXUYDGKKIU-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 description 2
- KKAJSJJFBSOMGS-UHFFFAOYSA-N 3,6-diamino-10-methylacridinium chloride Chemical compound [Cl-].C1=C(N)C=C2[N+](C)=C(C=C(N)C=C3)C3=CC2=C1 KKAJSJJFBSOMGS-UHFFFAOYSA-N 0.000 description 2
- 235000021357 Behenic acid Nutrition 0.000 description 2
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 239000005639 Lauric acid Substances 0.000 description 2
- 235000021314 Palmitic acid Nutrition 0.000 description 2
- 235000021319 Palmitoleic acid Nutrition 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 240000006909 Tilia x europaea Species 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000007900 aqueous suspension Substances 0.000 description 2
- 229940116226 behenic acid Drugs 0.000 description 2
- ZCZLQYAECBEUBH-UHFFFAOYSA-L calcium;octadec-9-enoate Chemical compound [Ca+2].CCCCCCCCC=CCCCCCCCC([O-])=O.CCCCCCCCC=CCCCCCCCC([O-])=O ZCZLQYAECBEUBH-UHFFFAOYSA-L 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- SECPZKHBENQXJG-UHFFFAOYSA-N cis-palmitoleic acid Natural products CCCCCCC=CCCCCCCCC(O)=O SECPZKHBENQXJG-UHFFFAOYSA-N 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 2
- 239000010438 granite Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 235000021313 oleic acid Nutrition 0.000 description 2
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 2
- 229940043267 rhodamine b Drugs 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 2
- 238000001429 visible spectrum Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- FJLUATLTXUNBOT-UHFFFAOYSA-N 1-Hexadecylamine Chemical compound CCCCCCCCCCCCCCCCN FJLUATLTXUNBOT-UHFFFAOYSA-N 0.000 description 1
- 101100025412 Arabidopsis thaliana XI-A gene Proteins 0.000 description 1
- 241000283690 Bos taurus Species 0.000 description 1
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 description 1
- PLZVEHJLHYMBBY-UHFFFAOYSA-N Tetradecylamine Chemical compound CCCCCCCCCCCCCCN PLZVEHJLHYMBBY-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 238000010936 aqueous wash Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229940000425 combination drug Drugs 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- VPNOHCYAOXWMAR-UHFFFAOYSA-N docosan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCCCCCN VPNOHCYAOXWMAR-UHFFFAOYSA-N 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- BUHXFUSLEBPCEB-UHFFFAOYSA-N icosan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCCCN BUHXFUSLEBPCEB-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229960001708 magnesium carbonate Drugs 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- 239000010690 paraffinic oil Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000002311 subsequent effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
- B03B13/04—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects using electrical or electromagnetic effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
- B03B1/04—Conditioning for facilitating separation by altering physical properties of the matter to be treated by additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3425—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain
- B07C5/3427—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain by changing or intensifying the optical properties prior to scanning, e.g. by inducing fluorescence under UV or x-radiation, subjecting the material to a chemical reaction
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Sorting Of Articles (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US879,780 | 1978-04-19 | ||
| US05/897,780 US4207175A (en) | 1978-04-19 | 1978-04-19 | Separation of magnesite from ores which also contain calcite or dolomite |
| US05/897,740 US4208272A (en) | 1978-04-19 | 1978-04-19 | Separation of limestone from limestone ore |
| US879,740 | 1978-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1121761A true CA1121761A (en) | 1982-04-13 |
Family
ID=27129184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000325906A Expired CA1121761A (en) | 1978-04-19 | 1979-04-19 | Separation of calcium-containing material from ore |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS55500352A (enExample) |
| AU (1) | AU523408B2 (enExample) |
| CA (1) | CA1121761A (enExample) |
| ES (1) | ES479703A1 (enExample) |
| GB (1) | GB2037265B (enExample) |
| WO (1) | WO1979000950A1 (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0030802A3 (en) * | 1979-12-05 | 1983-07-20 | Occidental Research Corporation | Sorting particles |
| CN112573842B (zh) * | 2020-12-29 | 2022-04-22 | 中国水利水电第九工程局有限公司 | 石灰石矿山尾矿白云石用于水泥生产配料方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1678884A (en) * | 1926-10-21 | 1928-07-31 | William G Rice | Metallurgical separator |
| US2967614A (en) * | 1959-06-30 | 1961-01-10 | Fredoon S Nury | Sorting raisins by optical difference |
| US3346111A (en) * | 1964-11-24 | 1967-10-10 | Colonial Sugar Refining Co | Method of rendering asbestos ore particles differentially fluorescent |
| US3356211A (en) * | 1964-12-07 | 1967-12-05 | Ted C Mathews | Separation of ore particles preferentially coated with liquid fluorescent material |
| US3472375A (en) * | 1967-10-27 | 1969-10-14 | Ted C Mathews | Apparatus and method for separating ore |
| FR2159736A5 (enExample) * | 1971-11-10 | 1973-06-22 | Rech Geolog Miniere | |
| US3901793A (en) * | 1971-11-10 | 1975-08-26 | Rech Geolog Miniere | Process for the preconcentration of ores by induced measure of the superficial contents |
| US3936188A (en) * | 1972-11-06 | 1976-02-03 | Sawyer Research Products, Inc. | Color sorting of irradiated materials and a calibrated color comparison array |
| US3992287A (en) * | 1975-02-27 | 1976-11-16 | Rhys Hugh R | Oil shale sorting |
-
1979
- 1979-04-16 JP JP50067279A patent/JPS55500352A/ja active Pending
- 1979-04-16 WO PCT/US1979/000246 patent/WO1979000950A1/en not_active Ceased
- 1979-04-16 GB GB7941446A patent/GB2037265B/en not_active Expired
- 1979-04-18 ES ES479703A patent/ES479703A1/es not_active Expired
- 1979-04-18 AU AU46183/79A patent/AU523408B2/en not_active Ceased
- 1979-04-19 CA CA000325906A patent/CA1121761A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU4618379A (en) | 1979-10-25 |
| GB2037265A (en) | 1980-07-09 |
| ES479703A1 (es) | 1980-08-16 |
| AU523408B2 (en) | 1982-07-29 |
| GB2037265B (en) | 1982-12-15 |
| WO1979000950A1 (en) | 1979-11-15 |
| JPS55500352A (enExample) | 1980-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |