GB2037265A - Separation of calcium containing material from ore - Google Patents

Separation of calcium containing material from ore

Info

Publication number
GB2037265A
GB2037265A GB7941446A GB7941446A GB2037265A GB 2037265 A GB2037265 A GB 2037265A GB 7941446 A GB7941446 A GB 7941446A GB 7941446 A GB7941446 A GB 7941446A GB 2037265 A GB2037265 A GB 2037265A
Authority
GB
United Kingdom
Prior art keywords
ore
coated particles
carbon atoms
coupling agent
limestone
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.)
Granted
Application number
GB7941446A
Other versions
GB2037265B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Occidental Research Corp
Original Assignee
Occidental Research Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US05/897,740 external-priority patent/US4208272A/en
Priority claimed from US05/897,780 external-priority patent/US4207175A/en
Application filed by Occidental Research Corp filed Critical Occidental Research Corp
Publication of GB2037265A publication Critical patent/GB2037265A/en
Application granted granted Critical
Publication of GB2037265B publication Critical patent/GB2037265B/en
Expired legal-status Critical Current

Links

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)

Abstract

A method for the separation of calcium-containing limestone ore containing particles of calcite (CaCO<u3>u), dolomite (CaMg(CO<u3>u)<u2>u), and gangue, including magnesite (MgCO<u3>u) and siliceous materials. The method comprises conditioning the limestone ore with at least one coupling agent selected from saturated and unsaturated carboxylic acids containing from about4 to about 22 carbon atoms, or at least one coupling agent selected from the group consisting of aliphatic amines containing from about 8 to about 22 carbon atoms, and beta amines containing from about 7 to about 21 carbon atoms, to selectively coat the calcium-containing limestone or the gangue in the ore to the substantial exclusion of the other in combination with providing at least one fluorescent dye to said coupling agent; radiating the conditioned ore to excite and induce fluorescence of the fluorescent dye to a degree sufficient to distinguish the coated particles from the non-coated particles and separating the fluorescing, coated particles from the non-fluorescing, non-coated particles.
GB7941446A 1978-04-19 1979-04-16 Separation of calcium containing material from ore Expired GB2037265B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/897,740 US4208272A (en) 1978-04-19 1978-04-19 Separation of limestone from limestone ore
US05/897,780 US4207175A (en) 1978-04-19 1978-04-19 Separation of magnesite from ores which also contain calcite or dolomite

Publications (2)

Publication Number Publication Date
GB2037265A true GB2037265A (en) 1980-07-09
GB2037265B GB2037265B (en) 1982-12-15

Family

ID=27129184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7941446A Expired GB2037265B (en) 1978-04-19 1979-04-16 Separation of calcium containing material from ore

Country Status (7)

Country Link
JP (1) JPS55500352A (en)
AU (1) AU523408B2 (en)
CA (1) CA1121761A (en)
ES (1) ES479703A1 (en)
FI (1) FI791252A (en)
GB (1) GB2037265B (en)
WO (1) WO1979000950A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112573842A (en) * 2020-12-29 2021-03-30 中国水利水电第九工程局有限公司 Method for preparing ingredients for cement production by using limestone mine tailing dolomite

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030802A3 (en) * 1979-12-05 1983-07-20 Occidental Research Corporation Sorting particles

Family Cites Families (9)

* Cited by examiner, † Cited by third party
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 (en) * 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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112573842A (en) * 2020-12-29 2021-03-30 中国水利水电第九工程局有限公司 Method for preparing ingredients for cement production by using limestone mine tailing dolomite
CN112573842B (en) * 2020-12-29 2022-04-22 中国水利水电第九工程局有限公司 Method for preparing ingredients for cement production by using limestone mine tailing dolomite

Also Published As

Publication number Publication date
ES479703A1 (en) 1980-08-16
GB2037265B (en) 1982-12-15
AU4618379A (en) 1979-10-25
FI791252A (en) 1979-10-20
JPS55500352A (en) 1980-06-19
WO1979000950A1 (en) 1979-11-15
AU523408B2 (en) 1982-07-29
CA1121761A (en) 1982-04-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee