FR2259643A1 - Electrostatic sepn. of quartz and feldspar - by the corona effect with additive to increase difference in resistivities - Google Patents
Electrostatic sepn. of quartz and feldspar - by the corona effect with additive to increase difference in resistivitiesInfo
- Publication number
- FR2259643A1 FR2259643A1 FR7403230A FR7403230A FR2259643A1 FR 2259643 A1 FR2259643 A1 FR 2259643A1 FR 7403230 A FR7403230 A FR 7403230A FR 7403230 A FR7403230 A FR 7403230A FR 2259643 A1 FR2259643 A1 FR 2259643A1
- Authority
- FR
- France
- Prior art keywords
- feldspar
- quartz
- sepn
- electrostatic
- resistivities
- 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
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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C7/00—Separating solids from solids by electrostatic effect
- B03C7/003—Pretreatment of the solids prior to electrostatic separation
Landscapes
- Glass Compositions (AREA)
Abstract
The electrostatic sepn. of a mixt. of particles of quartz and feldspar, by the Corona effect, uses, as the voltage-active additive for increasing the difference between the superficial resistivity of quartz and that of feldspar, an oxyethylated amine of the type "Cataflot 2704" (RTM). The amine is used at the rate of 300 gr. to 1 kg. per tonne, partic. 600g. per tonne. Using "Cataflot 2704" gives much better results than those obtd. with other known voltage-active agents, even those of the same type, i.e. cationic amine-based agents, which are used in flotation processes and necessitate fluorhydric activation. The ratio of resistivities achieved is 3.5, compared with 2.5 for the best of other amines of the same kind, and 1 for other amines, used as voltage-active agents.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7403230A FR2259643A1 (en) | 1974-01-31 | 1974-01-31 | Electrostatic sepn. of quartz and feldspar - by the corona effect with additive to increase difference in resistivities |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7403230A FR2259643A1 (en) | 1974-01-31 | 1974-01-31 | Electrostatic sepn. of quartz and feldspar - by the corona effect with additive to increase difference in resistivities |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2259643A1 true FR2259643A1 (en) | 1975-08-29 |
FR2259643B1 FR2259643B1 (en) | 1976-11-26 |
Family
ID=9134283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7403230A Granted FR2259643A1 (en) | 1974-01-31 | 1974-01-31 | Electrostatic sepn. of quartz and feldspar - by the corona effect with additive to increase difference in resistivities |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2259643A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101497058A (en) * | 2008-01-31 | 2009-08-05 | 黄崧基 | Method for separating rhombic quartz and quartz from efflorescent granite mineral |
-
1974
- 1974-01-31 FR FR7403230A patent/FR2259643A1/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101497058A (en) * | 2008-01-31 | 2009-08-05 | 黄崧基 | Method for separating rhombic quartz and quartz from efflorescent granite mineral |
Also Published As
Publication number | Publication date |
---|---|
FR2259643B1 (en) | 1976-11-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |