GB471861A - Improvements in and relating to froth flotation agents - Google Patents

Improvements in and relating to froth flotation agents

Info

Publication number
GB471861A
GB471861A GB7045/36A GB704536A GB471861A GB 471861 A GB471861 A GB 471861A GB 7045/36 A GB7045/36 A GB 7045/36A GB 704536 A GB704536 A GB 704536A GB 471861 A GB471861 A GB 471861A
Authority
GB
United Kingdom
Prior art keywords
derivative
copper
zinc
water
thiocarbanilide
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
GB7045/36A
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.)
FRANCO WYOMING OIL CO
Original Assignee
FRANCO WYOMING OIL CO
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 FRANCO WYOMING OIL CO filed Critical FRANCO WYOMING OIL CO
Publication of GB471861A publication Critical patent/GB471861A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00Flotation
    • B03D1/001Flotation agents
    • B03D1/004Organic compounds
    • B03D1/012Organic compounds containing sulfur
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00Specified effects produced by the flotation agents
    • B03D2201/02Collectors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2203/00Specified materials treated by the flotation agents; Specified applications
    • B03D2203/02Ores

Landscapes

  • Paper (AREA)

Abstract

A thiocarbanilide derivative which is very finely divided and more soluble in water than thiocarbanilide itself is precipitated by mixing water with a solution of thiocarbanilide in sulphuric acid. The product, which is used as a froth flotation reagent, may be separated from the acid and used in the dry state or made into a sludge with water, or may be used as a sludge or a suspension in the dilute acid solution from which it is precipitated. The derivative may be precipitated on an inert insoluble carrier such as diatomaceous earth.ALSO:A froth flotation reagent is prepared by dissolving thiocarbanilide in sulphuric acid and mixing the solution with water to precipitate a derivative which is very finely divided and is more soluble in water than thiocarbanilide itself. The precipitate may be separated from the acid and used in the dry state or made into a sludge with water, or may be used as a sludge or a suspension in the dilute acid solution from which it is precipitated. Alternatively, the acid solution may be added direct to the pulp, the water in the pulp causing precipitation of the derivative. The derivative may be precipitated on an inert insoluble carrier such as diatomaceous earth which may be added to the pulp either dry or as a sludge. The concentration of various mixed sulphide ores is described. A mixed lead and copper concentrate may be obtained from an ore containing lead, copper, zinc, and iron sulphides either by direct flotation with a mixture of the thiocarbanilide derivative and cresol, or by adding sodium cyanide which depresses the zinc and iron and part of the copper, adding sulphuric acid to reactivate the copper, and then floating with the derivative and cresol. A lead-zinc-iron ore may be floated with the derivative, cresol, and sodium hydroxide with or without sodium cyanide to give a lead concentrate, the zinc being then floated, using copper sulphate and derivative, and the iron, if desired, being finally floated with xanthate. A copper-zinc-iron ore may be treated with sodium cyanide or zinc cyanide to depress the zinc and iron and, in part, the copper, and a solution of this carbanilide in concentrated sulphuric acid then added. The derivative is precipitated and the copper is reactivated by the sulphuric acid and can then be floated with the addition of a frothing agent. Alternatively, the sulphuric acid and the derivative may be added separately.
GB7045/36A 1935-03-20 1936-03-09 Improvements in and relating to froth flotation agents Expired GB471861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US471861XA 1935-03-20 1935-03-20

Publications (1)

Publication Number Publication Date
GB471861A true GB471861A (en) 1937-09-09

Family

ID=21947523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7045/36A Expired GB471861A (en) 1935-03-20 1936-03-09 Improvements in and relating to froth flotation agents

Country Status (1)

Country Link
GB (1) GB471861A (en)

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