US933717A - Process of treating ores. - Google Patents

Process of treating ores. Download PDF

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Publication number
US933717A
US933717A US47171709A US1909471717A US933717A US 933717 A US933717 A US 933717A US 47171709 A US47171709 A US 47171709A US 1909471717 A US1909471717 A US 1909471717A US 933717 A US933717 A US 933717A
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magnetic
ore
particles
treating ores
substance
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US47171709A
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Alfred Arthur Lockwood
Marcus Reginald Anthony Samuel
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    • 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
    • B03C1/00—Magnetic separation
    • B03C1/005—Pretreatment specially adapted for magnetic separation
    • B03C1/01—Pretreatment specially adapted for magnetic separation by addition of magnetic adjuvants

Definitions

  • This invention relates to the treatment of ores, tailings, concentrates or the like for rendering the constituent parts of ores which are non-magnetic or non-magnetizable or only slightly so separable by means of magnetic separators.
  • an ore by which term there is intended to be included tailings, concentrates or the like
  • particles of a magnetic by which term there is intended to be included any magnetizable substance
  • a liquid under conditions such that the liquid adheres to some constituent part or parts of the ore in preference to the others causing such part and the particles to adhere together.
  • the percentage of the adhesive liquid and of the magnetic particles may be varied to suit the particular method of separation or concentration to be employed. It is obvious that the stronger the magnetic field the less magnetic particles will be required, and the liner the magnetic particles the larger the surface exposed to the magnetic field.
  • the separation of the treated particles from the other constituent parts of the ore can be effected in any suitable manner either wet or dry. In some cases it may not be necessary to add magnetic particles as the ore may either by nature or by reason of a suitable treatment contain sufiicient, when the ore is mixed with an adhesive liquid as described, for a greatly improved extraction to take place; the magnetic and nonmagnetic metalliferous particles adhering together as before described.
  • a is a valve through which the ore mixed with water, oil and magnetic substance passes to a chute B into a magnetic separator.
  • the separator consists of a tank C divided into two compartments 0 and c by means of a partition 0 0 is a pipe opening into the compartment 0 and through which water is forced.
  • 0 is a discharge pipe issuing from the bottom of the compartment 0 and provided with a regulating valve 0 c is a conduit for receiving the particles of ore.
  • D is a drum capable of rotation on a stationary shaft 0? and made of a metal such as brass.
  • E is a system of electromagnets connected to the shaft (2?.
  • the ore flows into the compartment 0 when it is met by a current of water rising from the pipe
  • the magnetic particles on passing the partition 0 are influenced by the magnet system by which the magnetic particles are drawn upward from out of the our- 5 rent of water against the drum D sticking to it as far as the magnet system extends and then falling into the conduit 0.
  • the non magnetic particles sink to the bottom and are discharged through the pipe 0*.
  • WVhat we claim is 1.
  • the process of treating ores which consists in mixing with the ore a sufficient quantity of a magnetic substance and an adhesive non-metallic liquid adapted to cause the magnetic substance to adhere to some constituent part of the ore in preference to the others, and which renders it capable of separation by a magnetic separator, and then magnetically separating the particles thus adhered.
  • the process of treating ores which consists is mixing an ore with a magnetic substance and an oily liquid adapted to cause the magnetic substance to adhere to some 2 constituent part of the ore in preference to the others, and then magnetically separating the mixture.

Description

A. A. LOGKWOOD & M. R. A. SAMUN PROCESS OF TREATING 018E8- APPLICATION FILED JAN. 11; 1909.
933 ,717, Patented Sept. 7, 1909.
MW. 1 mun m. mum WAMTOII, u c
UNITE STATES ALFRED ARTHUR LOCKWOOD AND MARCUS REGINALD ANTHONY SAMUEL, OF LONDON,
ENGLAND.
PROCESS OF TREATING ORES.
To all whom it may concern:
Be it known that we, ALFRED ARTHUR Looxwoon, chemist, and MARCUS REGINALD ANTHONY SAMUEL, merchant, subjects of the King of Great Britain, both residing at- 12 Minories, in the city of London, England, have invented new and useful Processes of Treating Ores, of which the following is a specification.
The accompanying drawing is a diagram, with most of the parts in section, of an apparatus which may be employed in the practice of our invention.
This invention relates to the treatment of ores, tailings, concentrates or the like for rendering the constituent parts of ores which are non-magnetic or non-magnetizable or only slightly so separable by means of magnetic separators.
According to this invention an ore (by which term there is intended to be included tailings, concentrates or the like) is mixed with particles of a magnetic (by which term there is intended to be included any magnetizable substance) substance and a liquid under conditions such that the liquid adheres to some constituent part or parts of the ore in preference to the others causing such part and the particles to adhere together.
The details of the results of the following experiment show how the process may be carried out in practice. 200 lbs. of Broken Hill. zinc tailings containing about 18.78 zinc, 5.14 lead having passed through a 40 mesh screen were treated as follows :*The ore was fed into an agitator with about lbs. water to which was added 1000 grains sulfuric acid. To this pulp was added about 10 lbs. of magnetic paint made by mixing two parts by weight of finely ground cast iron with one part of oil gas tar (which is a residual oil obtained in the manufacture of oil gas). The agitation was continued for a few minutes and additional water was then run into the agitator and the pulp was fed into a magnetic separating apparatus. On testing a handful of the tailings so treated with a hand magnet, it was found that on contact it removed nearly all the metalliferous particles, a small percentage only being not affected.
It may sometimes be desirable especially when the constituent part of the ore it is desired to separate consists of fine particles Specification of Letters Patent.
Application filed January 11, 1909.
Patented Sept. 7, 1909.
Serial No. 471,717.
as in the case of some gold quartz) to mix tie ground wet quartz with coarser particles of the magnetic substance to which sufiicient of the adhesive liquid has been added to cause the fine particles to adhere to the magnetic particles.
The percentage of the adhesive liquid and of the magnetic particles may be varied to suit the particular method of separation or concentration to be employed. It is obvious that the stronger the magnetic field the less magnetic particles will be required, and the liner the magnetic particles the larger the surface exposed to the magnetic field.
In the practical application of this invention a few experiments may be necessary to gage the best percentages to use, taking into account the size of the particles to be separated, the separating device to be used and the power of the field.
The separation of the treated particles from the other constituent parts of the ore can be effected in any suitable manner either wet or dry. In some cases it may not be necessary to add magnetic particles as the ore may either by nature or by reason of a suitable treatment contain sufiicient, when the ore is mixed with an adhesive liquid as described, for a greatly improved extraction to take place; the magnetic and nonmagnetic metalliferous particles adhering together as before described.
In the drawings which show apparatus of known construction A is a vessel provided with an agitator a.
a is a valve through which the ore mixed with water, oil and magnetic substance passes to a chute B into a magnetic separator. The separator consists of a tank C divided into two compartments 0 and c by means of a partition 0 0 is a pipe opening into the compartment 0 and through which water is forced.
0 is a discharge pipe issuing from the bottom of the compartment 0 and provided with a regulating valve 0 c is a conduit for receiving the particles of ore.
D is a drum capable of rotation on a stationary shaft 0? and made of a metal such as brass.
E is a system of electromagnets connected to the shaft (2?.
The ore flows into the compartment 0 when it is met by a current of water rising from the pipe The magnetic particles on passing the partition 0 are influenced by the magnet system by which the magnetic particles are drawn upward from out of the our- 5 rent of water against the drum D sticking to it as far as the magnet system extends and then falling into the conduit 0. The non magnetic particles sink to the bottom and are discharged through the pipe 0*.
WVhat we claim is 1. The process of treating ores, which consists in mixing with the ore a sufficient quantity of a magnetic substance and an adhesive non-metallic liquid adapted to cause the magnetic substance to adhere to some constituent part of the ore in preference to the others, and which renders it capable of separation by a magnetic separator, and then magnetically separating the particles thus adhered.
r 2. The process of treating ores, which consists is mixing an ore with a magnetic substance and an oily liquid adapted to cause the magnetic substance to adhere to some 2 constituent part of the ore in preference to the others, and then magnetically separating the mixture.
3. The process of treating ores, which consists in mixing the ore with a magnetic substance and oil gas tar which causes the magnetic substance to adhere to some constituent part of the ore in preference to the others,
and then magnetically separating the mixture.
4:- The process of treating ores, which consists in mixing an ore with an acid, a magnetic substance and a non-metallic liquid adapted to cause the magnetic substance to adhere to some constituent part of the ore in preference to the others and then magnetically separating the mixture.
5. The process of treating ores, which consists in mixing the ore with an acid, a magnetic substance and an oily liquid adapted to cause themagnetic substance to adhere to some constituent part of the ore in preference to the others, and then magnetically separating the mixture.
6. The process of treating ores, which consists in mixing an ore with an acid, a magnetic substance, and oil gas tar which with the magnetic substance is adapted to adhere to some constituent part of the ore in prefer ence to the others, and then magnetically separating the mixture.
7. The process of treating ores, which consists in causing non-magnetic metalliferous particles to adhere with magnetic particles by means of a non-metallic liquid which with the magnetic particles is adapted to ad- 7
US47171709A 1909-01-11 1909-01-11 Process of treating ores. Expired - Lifetime US933717A (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423314A (en) * 1945-06-01 1947-07-01 American Cyanamid Co Agglomeration by sulfonated reagents in magnetic recovery of iron ores
US3926789A (en) * 1973-07-05 1975-12-16 Maryland Patent Dev Co Inc Magnetic separation of particular mixtures
US3929627A (en) * 1974-01-29 1975-12-30 Financial Mining Ind Ship Magnetic beneficiation for magnesite ores
US4087004A (en) * 1975-10-01 1978-05-02 Anglo-American Clays Corporation Magnetic beneficiation of clays utilizing magnetic particulates
US4125460A (en) * 1975-10-01 1978-11-14 Anglo-American Clays Corporation Magnetic beneficiation of clays utilizing magnetic particulates
US4129498A (en) * 1974-11-22 1978-12-12 English Clays Lovering Pochin & Co. Limited Magnetic separation
US4176054A (en) * 1977-05-16 1979-11-27 Kelley Joseph A Waste paper recycling
USRE30360E (en) * 1977-12-14 1980-08-05 Maryland Patent Development Co., Inc. Magnetic separation of particulate mixtures
US4219408A (en) * 1978-04-27 1980-08-26 Anglo-American Clays Corporation Magnetic separation of minerals utilizing magnetic particulates
US4225425A (en) * 1975-10-01 1980-09-30 Anglo-American Clays Corporation Method for separating metallic minerals utilizing magnetic seeding
US4225426A (en) * 1975-10-01 1980-09-30 Anglo-American Clays Corporation Magnetic beneficiation of clays utilizing magnetic particulates
US4239529A (en) * 1979-10-22 1980-12-16 Hazen Research, Inc. Process for beneficiating sulfide ores
US4276081A (en) * 1978-10-10 1981-06-30 Hazen Research, Inc. Process for beneficiating ores
US4289529A (en) * 1978-10-10 1981-09-15 Hazen Research, Inc. Process for beneficiating sulfide ores
US4289528A (en) * 1978-07-03 1981-09-15 Hazen Research, Inc. Process for beneficiating sulfide ores
US4526681A (en) * 1983-10-31 1985-07-02 Purdue Research Foundation Magnetic separation method utilizing a colloid of magnetic particles
US4657666A (en) * 1981-10-26 1987-04-14 W.S.R. Pty. Ltd. Magnetic flotation

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423314A (en) * 1945-06-01 1947-07-01 American Cyanamid Co Agglomeration by sulfonated reagents in magnetic recovery of iron ores
US3926789A (en) * 1973-07-05 1975-12-16 Maryland Patent Dev Co Inc Magnetic separation of particular mixtures
US3929627A (en) * 1974-01-29 1975-12-30 Financial Mining Ind Ship Magnetic beneficiation for magnesite ores
US4129498A (en) * 1974-11-22 1978-12-12 English Clays Lovering Pochin & Co. Limited Magnetic separation
US4225426A (en) * 1975-10-01 1980-09-30 Anglo-American Clays Corporation Magnetic beneficiation of clays utilizing magnetic particulates
US4087004A (en) * 1975-10-01 1978-05-02 Anglo-American Clays Corporation Magnetic beneficiation of clays utilizing magnetic particulates
US4125460A (en) * 1975-10-01 1978-11-14 Anglo-American Clays Corporation Magnetic beneficiation of clays utilizing magnetic particulates
US4225425A (en) * 1975-10-01 1980-09-30 Anglo-American Clays Corporation Method for separating metallic minerals utilizing magnetic seeding
US4176054A (en) * 1977-05-16 1979-11-27 Kelley Joseph A Waste paper recycling
USRE30360E (en) * 1977-12-14 1980-08-05 Maryland Patent Development Co., Inc. Magnetic separation of particulate mixtures
US4219408A (en) * 1978-04-27 1980-08-26 Anglo-American Clays Corporation Magnetic separation of minerals utilizing magnetic particulates
US4289528A (en) * 1978-07-03 1981-09-15 Hazen Research, Inc. Process for beneficiating sulfide ores
US4276081A (en) * 1978-10-10 1981-06-30 Hazen Research, Inc. Process for beneficiating ores
US4289529A (en) * 1978-10-10 1981-09-15 Hazen Research, Inc. Process for beneficiating sulfide ores
US4239529A (en) * 1979-10-22 1980-12-16 Hazen Research, Inc. Process for beneficiating sulfide ores
US4657666A (en) * 1981-10-26 1987-04-14 W.S.R. Pty. Ltd. Magnetic flotation
US4526681A (en) * 1983-10-31 1985-07-02 Purdue Research Foundation Magnetic separation method utilizing a colloid of magnetic particles

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