GB1399614A - Separation of solids - Google Patents

Separation of solids

Info

Publication number
GB1399614A
GB1399614A GB2725172A GB2725172A GB1399614A GB 1399614 A GB1399614 A GB 1399614A GB 2725172 A GB2725172 A GB 2725172A GB 2725172 A GB2725172 A GB 2725172A GB 1399614 A GB1399614 A GB 1399614A
Authority
GB
United Kingdom
Prior art keywords
hydrophobic
particles
liquid
substrate
solid
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
Application number
GB2725172A
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.)
PPG Architectural Coatings Canada Inc
Original Assignee
Canadian Industries Ltd
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
Application filed by Canadian Industries Ltd filed Critical Canadian Industries Ltd
Priority to GB2725172A priority Critical patent/GB1399614A/en
Priority to CA171,339A priority patent/CA974938A/en
Priority to AU55817/73A priority patent/AU5581773A/en
Priority to ZM89/73A priority patent/ZM8973A1/en
Priority to ZA00733489A priority patent/ZA733489B/en
Priority to PH14670A priority patent/PH11209A/en
Priority to IN1333/CAL/73A priority patent/IN138988B/en
Priority to FR7321047A priority patent/FR2187421B3/fr
Priority to BR4333/73A priority patent/BR7304333D0/en
Publication of GB1399614A publication Critical patent/GB1399614A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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
    • 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
    • B03D1/008—Organic compounds containing oxygen
    • 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
    • B03D1/01—Organic compounds containing nitrogen
    • 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
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/014—Organic compounds containing phosphorus
    • 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
    • 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
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/007—Modifying reagents for adjusting pH or conductivity
    • 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
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/02—Collectors
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

1399614 Separating solids CANADIAN INDUSTRIES LTD 8 June 1973 [12 June 1972] 27251/72 Heading B2H Hydrophobic solid particles are separated from other solid particles in a mixture of the solid particles by (1) preparing an aqueous suspension of the mixture of the particles, (2) adding a hydrophobic liquid to the aqueous suspension; (3) contacting the aqueous suspension containing the hydrophobic liquid with a hydrophobic solid substrate that is wetted by said liquid so that the hydrophobic particles adhere to the liquid on the surface of the solid substrate; (4) removing the hydrophobic liquid holding the hyrophobic particles from the surface of the solid substrate and (5) recovering the hydrophobic particles. The solids, e.g. ore particles (examples of which are given) to be separated may be inherently hydrophobic or can be made hydrophobic, e.g. through absorption of a surface conditioner, or, e.g. in the case of oxidised ore particles, by sulphidisation with a water soluble sulphide. The surface conditioner may be .a flotation agent selected from xanthates, thiocarbonates, thiophosphates, long chain aliphatic acids and aliphatic amines. The solid substrate employed may be in the form of films, fibres, filaments, helices, pellets, discs or cores made of polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride, polystyrene, polyethylene terephthalate or a polyamide (examples of which are given). Alternatively the substrate may consists of metal or ceramic particulates. The hydrophobic liquid may be an aliphatic or aromatic hydrocarbon, e.g. fuel oil, petroleum ether, benzene, nitrobenzene, toluene or xylene. The hydrophobic particles may be removed from the liquid covered substrate by the use of mechanical means; by treating the substrate with steam to volatilise the liquid and flush off the particles; by treating the substrate with a surface active agent; or by washing the substrate with a solvent (e.g. methanol) for the liquid. In an illustrated embodiment the suspension of particles to be separated and to which hydrophobic liquid has been added is passed through a column which is packed with poly-, mer fibres and/or helices. A number of columns may 'be 'arranged in parallel.
GB2725172A 1972-06-12 1972-06-12 Separation of solids Expired GB1399614A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB2725172A GB1399614A (en) 1972-06-12 1972-06-12 Separation of solids
CA171,339A CA974938A (en) 1972-06-12 1973-05-11 Separation of solids by hydrophobic adhesion
AU55817/73A AU5581773A (en) 1972-06-12 1973-05-17 Separation of solids
ZM89/73A ZM8973A1 (en) 1972-06-12 1973-05-22 Separation of solids
ZA00733489A ZA733489B (en) 1972-06-12 1973-05-23 Separation of solids
PH14670A PH11209A (en) 1972-06-12 1973-05-30 A process for the separation of hydrophobic solid particles from mixtures thereof
IN1333/CAL/73A IN138988B (en) 1972-06-12 1973-06-07
FR7321047A FR2187421B3 (en) 1972-06-12 1973-06-08
BR4333/73A BR7304333D0 (en) 1972-06-12 1973-06-11 SEPARATION OF SOLIDS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2725172A GB1399614A (en) 1972-06-12 1972-06-12 Separation of solids

Publications (1)

Publication Number Publication Date
GB1399614A true GB1399614A (en) 1975-07-02

Family

ID=10256553

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2725172A Expired GB1399614A (en) 1972-06-12 1972-06-12 Separation of solids

Country Status (9)

Country Link
AU (1) AU5581773A (en)
BR (1) BR7304333D0 (en)
CA (1) CA974938A (en)
FR (1) FR2187421B3 (en)
GB (1) GB1399614A (en)
IN (1) IN138988B (en)
PH (1) PH11209A (en)
ZA (1) ZA733489B (en)
ZM (1) ZM8973A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4592834A (en) * 1983-06-16 1986-06-03 Board Of Control Of Michigan Technological University Column froth flotation
AU573641B2 (en) * 1983-11-08 1988-06-16 Bateman Engineering (International) Ltd. Gold recovery process
CN106881782A (en) * 2017-02-21 2017-06-23 长安大学 A kind of method of FLOTATION SEPARATION high density polyethylene (HDPE), polypropylene and polyethylene terephthalate in mixed plastic from multicomponent
US10413847B2 (en) 2011-12-13 2019-09-17 Cidra Corporate Services Inc. Mineral separation using functionalized polymer or polymer-coated filters and membranes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111841895A (en) * 2020-06-24 2020-10-30 紫金矿业集团股份有限公司 Method for recovering valuable metal minerals from sulfide ore mine beneficiation sludge
CN112057947B (en) * 2020-09-22 2022-08-02 中国石油化工股份有限公司 Solid-liquid separation device and method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4592834A (en) * 1983-06-16 1986-06-03 Board Of Control Of Michigan Technological University Column froth flotation
AU573641B2 (en) * 1983-11-08 1988-06-16 Bateman Engineering (International) Ltd. Gold recovery process
US10413847B2 (en) 2011-12-13 2019-09-17 Cidra Corporate Services Inc. Mineral separation using functionalized polymer or polymer-coated filters and membranes
CN106881782A (en) * 2017-02-21 2017-06-23 长安大学 A kind of method of FLOTATION SEPARATION high density polyethylene (HDPE), polypropylene and polyethylene terephthalate in mixed plastic from multicomponent

Also Published As

Publication number Publication date
ZM8973A1 (en) 1975-05-21
FR2187421A1 (en) 1974-01-18
FR2187421B3 (en) 1976-05-28
CA974938A (en) 1975-09-23
BR7304333D0 (en) 1974-08-15
PH11209A (en) 1977-10-28
IN138988B (en) 1976-04-24
AU5581773A (en) 1974-11-21
ZA733489B (en) 1975-01-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees