US3768738A - Flotation of arsenic minerals from borate ores - Google Patents

Flotation of arsenic minerals from borate ores Download PDF

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Publication number
US3768738A
US3768738A US00191536A US3768738DA US3768738A US 3768738 A US3768738 A US 3768738A US 00191536 A US00191536 A US 00191536A US 3768738D A US3768738D A US 3768738DA US 3768738 A US3768738 A US 3768738A
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US
United States
Prior art keywords
flotation
ore
slurry
arsenic
mesh
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 - Lifetime
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US00191536A
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English (en)
Inventor
D Sawyer
M Wilson
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US Borax Inc
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United States Borax and Chemical Corp
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Filing date
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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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/02—Froth-flotation processes
    • B03D1/06—Froth-flotation processes differential
    • 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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/006—Hydrocarbons
    • 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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/012—Organic compounds containing sulfur
    • 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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2203/00—Specified materials treated by the flotation agents; Specified applications
    • B03D2203/02—Ores

Definitions

  • ABSTRACT Arsenic minerals such as realgar, may be removed by flotation from hot slurries of borate ores, such as ulexite, colemanite and tincal with or without the aid of a flotation reagent.
  • the ore slurry is prepared by crushing the ore to at least minus 20 mesh preferably minus 50 mesh and then heating with water, or by heating the coarse ore with water and passing the solution through a 50 mesh screen.
  • the water insolubles in the rougher tailings slurry are flocculated. After settling in a thickener, the hot overflow brines are sent to a crystallizer.
  • EXAMPLES l-VI An approximately saturated borax slurry was prepared by crushing 150 g. of soluble tincal to minus 50 mesh, slurrying with 250 ml. of water, and heating the mixture to 95 to 100 C. When flotation agents were employed, as in Examples l-V, they were added to the hot slurry. After thirty seconds conditioning, the slurry (at 95 C.) was tranferred to a 100 g. Denver Lab cell where air froth flotation was maintained for 2.5 minutes. The test data are set forth in the following Table TABLE I Arsenic distri- Tincal ore Flotation reagent butlon, percent Insoluble, Conper- AS203, cen- Examplc cent p.p.m.
  • Example Vll-lX show the influence of water insolubles and orpiment (AS253) on the process.
  • the ore used for Example IX contained some orpiment and turned yellow during crushing.
  • the ore for Example Vll was crushed to minus 20 mesh while those for Examples VI! and IX were crushed to minus mesh.
  • the slurry flows into the machine by gravity through the feed pipe, dropping the slurry directly on the top of the rotating impeller below a stationary hood. This is the mixing and aeration zone where air is drawn in by positive suction down a standpipe into the heart of the cell.
  • Zone 2 is the separation zone where the arsenic-laden air bubbles separate from the borate solution or slurry.
  • Zone 3 is the concentrate EXAMPLES X XlV
  • the special influence of flotation reagents is illustrated by Examples X-XIV.
  • the ore contained about 14% water-insolubles and about 3,800 ppm. AS203.
  • the slurry particles were less than 20 mesh and were processed as before.
  • the first flotation gave a first tail and an arsenic concentrate.
  • the concentrate was refloated to give a second tail and the final concentrate.
  • examples XV and XVII no flotation reagents were included while in example XVI, two drops of kerosene was included.
  • the temperature during the flotation steps was as indicated in Table IV.
  • Example XVI Flotation Reagent Kerosene (2 drops) Temperature (C.) Start Finish First Flotation 92 86 Second Flotation 95 80 Wt. As Total (8) (pp AS First Tall 33.2 80 1.3
  • the method of removing arsenic sulfide minerals from hydrated sodium and calcium borate containing ores comprising the steps of forming an aqueous slurry of said ore at a temperature of from about 75 to about 100 C., and subjecting said hot slurry to froth flotation and then separating the tailings from the floated materials which will contain a concentrate of said minerals.

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  • Manufacture And Refinement Of Metals (AREA)
US00191536A 1971-10-21 1971-10-21 Flotation of arsenic minerals from borate ores Expired - Lifetime US3768738A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19153671A 1971-10-21 1971-10-21

Publications (1)

Publication Number Publication Date
US3768738A true US3768738A (en) 1973-10-30

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ID=22705883

Family Applications (1)

Application Number Title Priority Date Filing Date
US00191536A Expired - Lifetime US3768738A (en) 1971-10-21 1971-10-21 Flotation of arsenic minerals from borate ores

Country Status (5)

Country Link
US (1) US3768738A (cs)
AR (1) AR196076A1 (cs)
CA (1) CA956393A (cs)
FR (1) FR2156563B1 (cs)
GB (1) GB1344024A (cs)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3913742A (en) * 1973-05-29 1975-10-21 Heikki Reino Laapas Flotation of oxide minerals in hot pulp
US4510049A (en) * 1983-09-26 1985-04-09 Owens-Corning Fiberglas Corporation Process for recovery of colemanite and probertite from mixed low grade ore
US4510048A (en) * 1983-09-26 1985-04-09 Owens-Corning Fiberglas Corporation Process for improving probertite concentration in probertite containing ore
US5238119A (en) * 1989-07-29 1993-08-24 U.S. Borax Inc. Beneficiation of calcium borate minerals

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111617880B (zh) * 2020-04-15 2022-03-08 北京矿冶科技集团有限公司 一种高砷铅锌矿的选矿方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US835143A (en) * 1905-10-20 1906-11-06 Henry Livingstone Sulman Ore concentration.
US1208334A (en) * 1914-03-14 1916-12-12 Minerals Separation American Syndicate 1913 Ltd Concentration of ores.
FR602686A (fr) * 1924-12-09 1926-03-24 Cie Centrale De Mines Et De Me Procédé de traitement des minerais par écumage
US2184558A (en) * 1937-05-18 1939-12-26 Pacific Coast Borax Company Process of recovering sodium tetraborate from borate ores
US2257710A (en) * 1940-05-08 1941-09-30 Beattie Gold Mines Quebec Ltd Treatment of metallurgical dusts containing arsenic
US2317413A (en) * 1940-09-11 1943-04-27 Shelton Francis Keith Process for the concentration of boron chemically combined from its ores by autoflotation
DE749467C (de) * 1940-05-17 1944-11-23 Habil Werner Gruender Dr Ing Verfahren zur Schaumschwimmaufbereitung von Mineralien
US2741364A (en) * 1953-07-24 1956-04-10 Molybdenum Corp Preparatory treatment for froth flotation
FR1137115A (fr) * 1955-11-28 1957-05-23 Siderurgie Fse Inst Rech Procédé d'élimination de l'arsenic des minerais de manganèse

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US835143A (en) * 1905-10-20 1906-11-06 Henry Livingstone Sulman Ore concentration.
US1208334A (en) * 1914-03-14 1916-12-12 Minerals Separation American Syndicate 1913 Ltd Concentration of ores.
FR602686A (fr) * 1924-12-09 1926-03-24 Cie Centrale De Mines Et De Me Procédé de traitement des minerais par écumage
US2184558A (en) * 1937-05-18 1939-12-26 Pacific Coast Borax Company Process of recovering sodium tetraborate from borate ores
US2257710A (en) * 1940-05-08 1941-09-30 Beattie Gold Mines Quebec Ltd Treatment of metallurgical dusts containing arsenic
DE749467C (de) * 1940-05-17 1944-11-23 Habil Werner Gruender Dr Ing Verfahren zur Schaumschwimmaufbereitung von Mineralien
US2317413A (en) * 1940-09-11 1943-04-27 Shelton Francis Keith Process for the concentration of boron chemically combined from its ores by autoflotation
US2741364A (en) * 1953-07-24 1956-04-10 Molybdenum Corp Preparatory treatment for froth flotation
FR1137115A (fr) * 1955-11-28 1957-05-23 Siderurgie Fse Inst Rech Procédé d'élimination de l'arsenic des minerais de manganèse

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3913742A (en) * 1973-05-29 1975-10-21 Heikki Reino Laapas Flotation of oxide minerals in hot pulp
US4510049A (en) * 1983-09-26 1985-04-09 Owens-Corning Fiberglas Corporation Process for recovery of colemanite and probertite from mixed low grade ore
US4510048A (en) * 1983-09-26 1985-04-09 Owens-Corning Fiberglas Corporation Process for improving probertite concentration in probertite containing ore
US5238119A (en) * 1989-07-29 1993-08-24 U.S. Borax Inc. Beneficiation of calcium borate minerals

Also Published As

Publication number Publication date
FR2156563A1 (cs) 1973-06-01
GB1344024A (en) 1974-01-16
CA956393A (en) 1974-10-15
FR2156563B1 (cs) 1976-05-21
AR196076A1 (es) 1973-11-30

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