US1728353A - Flotation process - Google Patents

Flotation process Download PDF

Info

Publication number
US1728353A
US1728353A US264965A US26496528A US1728353A US 1728353 A US1728353 A US 1728353A US 264965 A US264965 A US 264965A US 26496528 A US26496528 A US 26496528A US 1728353 A US1728353 A US 1728353A
Authority
US
United States
Prior art keywords
flotation
ore
flotation process
addition
zinc oxide
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
Application number
US264965A
Inventor
Sherwin P Lowe
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.)
R H CHANNING
Original Assignee
R H CHANNING
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 R H CHANNING filed Critical R H CHANNING
Priority to US264965A priority Critical patent/US1728353A/en
Application granted granted Critical
Publication of US1728353A publication Critical patent/US1728353A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/002—Inorganic compounds
    • 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
    • B03D2203/00—Specified materials treated by the flotation agents; specified applications
    • B03D2203/02—Ores
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S209/00—Classifying, separating, and assorting solids
    • Y10S209/901—Froth flotation; copper

Definitions

  • My invention relates to the concentration of ores by oil flotation, and has particularly in view the obtaining of higher grade concentrates from complex ores containing copper or lead and zinc.
  • soluble salts such as copper sulphate or ferrous sulphate, are often present, either in the water, in the ore, or released during grinding or the preparation o t the ore.
  • These soluble salts interfere with the proper selective action of the froths.
  • This condition can be partially overcome by the addition of lime, but may be almost entirely overcome by the addition of zinc oxide in suitable quantities'which acts as a precipitant for the objectionable salts-in addition to the other reagents commonly used in flotation.
  • froth flotation comprising the step of add-- ing a small quantity of zmc oxide, in addition to other well known oils and reagents, to the pulp to obtain higher grade concentrelites by overcoming the effect of soluble sa ts.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

Patented Sept. 17, 1929 UNITED STATES PATENT OFFICE SHERWIN P. LOWE, OF DENVER, COLORADO, ASSIGNOR TO B. H. CKANNING, AGENT, OF DENVER, COLORADO FLOTATION PROCESS No Drawing.
My invention relates to the concentration of ores by oil flotation, and has particularly in view the obtaining of higher grade concentrates from complex ores containing copper or lead and zinc. In the flotation concentra tion of such ores, soluble salts such as copper sulphate or ferrous sulphate, are often present, either in the water, in the ore, or released during grinding or the preparation o t the ore. These soluble salts interfere with the proper selective action of the froths. This condition can be partially overcome by the addition of lime, but may be almost entirely overcome by the addition of zinc oxide in suitable quantities'which acts as a precipitant for the objectionable salts-in addition to the other reagents commonly used in flotation.
An example of the effect of zinc oxide is as follows:
An ore assaying 1.9% Cu, 4.6% Zn, and 30% iron was ground With-4 lbs. CaO per ton and one part of Water, and these placed in a flotation machine and .1 lb. pine oil and .1 lb. zanthate, per ton of ore, was added, and a copper concentrate was removed. The results were as follows:
Per cent Zn The same ore was treated in the same manner, except that 2 lbs., per ton of ore, of zinc oxide was added to the ore before grinding, the results were:
Per cent Cu Cu concentrates 17.0 Tailings .3
Per cent Zn Application filed larch 28, 1928. Serial No. 264,965.
froth flotation comprising the step of add-- ing a small quantity of zmc oxide, in addition to other well known oils and reagents, to the pulp to obtain higher grade concentrelites by overcoming the effect of soluble sa ts.
5. The process of concentrating complex ores containing zinc and one of the metals of the group comprising copper and lead by froth flotation, comprising the step of adding approximately 2 lbs. of zinc oxide, in addition to other well known oils and reagents,
to the pulp to decompose the soluble salts and to increase the efliciency of-the flotation agent.
In testimony whereof, I affix my si nature.
SHERWIN P. L WE.
US264965A 1928-03-26 1928-03-26 Flotation process Expired - Lifetime US1728353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US264965A US1728353A (en) 1928-03-26 1928-03-26 Flotation process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US264965A US1728353A (en) 1928-03-26 1928-03-26 Flotation process

Publications (1)

Publication Number Publication Date
US1728353A true US1728353A (en) 1929-09-17

Family

ID=23008396

Family Applications (1)

Application Number Title Priority Date Filing Date
US264965A Expired - Lifetime US1728353A (en) 1928-03-26 1928-03-26 Flotation process

Country Status (1)

Country Link
US (1) US1728353A (en)

Similar Documents

Publication Publication Date Title
US4256227A (en) Froth flotation method for recovering metal values from their ores by thiourea or substituted thiourea
US2449984A (en) Differential froth flotation of sulfide ores
US2048370A (en) Method of froth flotation ore separation
US3167502A (en) Process for recovering cassiterite from ores
US4246096A (en) Flotation process
US2485083A (en) Froth flotation of copper sulfide ores with lignin sulfonates
US1728353A (en) Flotation process
US1728352A (en) Flotation concentration
US2012830A (en) Froth flotation process
US2154092A (en) Process of flotation concentration of ores
US2512669A (en) Flotation process
US2349637A (en) Froth flotation
US1972588A (en) Froth-flotation process
US2287274A (en) Process of separating lead and zinc sulphides
US2052214A (en) Differential froth flotation
US1858007A (en) Method and agent for recovery of oxidized ores
US2084413A (en) Flotation reagent
US2313360A (en) Process of concentrating nonmetalliferous ores
US1833427A (en) Flotation concentration of metalliferous minerals
US2381662A (en) Concentration of ores
US1668917A (en) Froth-flotation concentration of ores
US1951326A (en) Process for recovering manganese from ore
US1552937A (en) Concentration of ores
US2048369A (en) Method for froth flotation treatment of ores
US1988052A (en) Process for concentrating carbonate and oxidized ores and minerals