PROCESS AND APPARATUS FOR CARRYING OUT SAID PROCESS FOR THE PRECONCENTRATION OF ORES BY INDUCED MEASURE OF THE SUPERFICIAL CONTENTS
The concentration of a desired mineral in pieces of ore is determined by coating each piece with a fluorescent material that selectively adheres only to the exposed surfaces of the desired mineral. The pieces are then individually illuminated by ultra-violet radiation to fluoresce the selectively co...
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| creator | BUCHOT P,FR JEAN CLAUDE ROBERT,FR COHEN ALLORO R,FR |
| description | The concentration of a desired mineral in pieces of ore is determined by coating each piece with a fluorescent material that selectively adheres only to the exposed surfaces of the desired mineral. The pieces are then individually illuminated by ultra-violet radiation to fluoresce the selectively coated material. First photo-multipliers sense the magnitude of the fluorescence and a second photo-multiplier, which detects the shadow of the ore piece, yields an output proportional, after inversion, to the cross-sectional area of the ore piece. The magnitude value is then divided by the area value to indicate the concentration of the desired mineral in the ore piece, which may serve as a basis for automatically separating the pieces before further treatment. |
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The magnitude value is then divided by the area value to indicate the concentration of the desired mineral in the ore piece, which may serve as a basis for automatically separating the pieces before further treatment.</description><language>eng</language><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS ; MEASURING ; PERFORMING OPERATIONS ; PHYSICS ; POSTAL SORTING ; SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS ; SEPARATING SOLIDS FROM SOLIDS ; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS ; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS ; SORTING ; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTEDPIECE-MEAL, e.g. BY PICKING ; TECHNICAL SUBJECTS COVERED BY FORMER USPC ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS ; TESTING ; TRANSPORTING</subject><creationdate>1974</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19740305&DB=EPODOC&CC=US&NR=3795310A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19740305&DB=EPODOC&CC=US&NR=3795310A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BUCHOT P,FR</creatorcontrib><creatorcontrib>JEAN CLAUDE ROBERT,FR</creatorcontrib><creatorcontrib>COHEN ALLORO R,FR</creatorcontrib><title>PROCESS AND APPARATUS FOR CARRYING OUT SAID PROCESS FOR THE PRECONCENTRATION OF ORES BY INDUCED MEASURE OF THE SUPERFICIAL CONTENTS</title><description>The concentration of a desired mineral in pieces of ore is determined by coating each piece with a fluorescent material that selectively adheres only to the exposed surfaces of the desired mineral. The pieces are then individually illuminated by ultra-violet radiation to fluoresce the selectively coated material. First photo-multipliers sense the magnitude of the fluorescence and a second photo-multiplier, which detects the shadow of the ore piece, yields an output proportional, after inversion, to the cross-sectional area of the ore piece. 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The pieces are then individually illuminated by ultra-violet radiation to fluoresce the selectively coated material. First photo-multipliers sense the magnitude of the fluorescence and a second photo-multiplier, which detects the shadow of the ore piece, yields an output proportional, after inversion, to the cross-sectional area of the ore piece. The magnitude value is then divided by the area value to indicate the concentration of the desired mineral in the ore piece, which may serve as a basis for automatically separating the pieces before further treatment.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MEASURING PERFORMING OPERATIONS PHYSICS POSTAL SORTING SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SEPARATING SOLIDS FROM SOLIDS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SORTING SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTEDPIECE-MEAL, e.g. BY PICKING TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TESTING TRANSPORTING |
| title | PROCESS AND APPARATUS FOR CARRYING OUT SAID PROCESS FOR THE PRECONCENTRATION OF ORES BY INDUCED MEASURE OF THE SUPERFICIAL CONTENTS |
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