PT93998A - Processo para a recuperacao de valores minerais por flutuacao em espuma - Google Patents

Processo para a recuperacao de valores minerais por flutuacao em espuma

Info

Publication number: PT93998A
Authority: PT; Portugal
Prior art keywords: recovery; flotation; valuable minerals; foam flotation; valuable
Prior art date: 1990-05-10

Application number

PT9399890A

Other languages

English (en)

Other versions

PT93998B (pt

Inventor

Richard Robert Klimpel

Robert Douglas Hansel

Donald Eugene Leonard

Basil Stewart Fee

Original Assignee

Dow Chemical 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.)

1990-05-10

Filing date

1990-05-10

Publication date

1991-11-29

1990-05-10 Application filed by Dow Chemical Co filed Critical Dow Chemical Co

1990-05-10 Priority to PT9399890A priority Critical patent/PT93998B/pt

1991-11-29 Publication of PT93998A publication Critical patent/PT93998A/pt

1998-07-31 Publication of PT93998B publication Critical patent/PT93998B/pt

Links

238000005188 flotation Methods 0.000 title abstract 4
229910052500 inorganic mineral Inorganic materials 0.000 title abstract 3
238000000034 method Methods 0.000 title abstract 3
239000011707 mineral Substances 0.000 title abstract 3
239000006260 foam Substances 0.000 title 1
238000011084 recovery Methods 0.000 title 1
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
150000001875 compounds Chemical class 0.000 abstract 1
125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
239000000377 silicon dioxide Substances 0.000 abstract 1
150000003568 thioethers Chemical class 0.000 abstract 1

Landscapes

Manufacture And Refinement Of Metals (AREA)

PT9399890A 1990-05-10 1990-05-10 Processo para a recuperacao de valores minerais por flutuacao em espuma PT93998B (pt)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
PT9399890A PT93998B (pt)	1990-05-10	1990-05-10	Processo para a recuperacao de valores minerais por flutuacao em espuma

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PT9399890A PT93998B (pt)	1990-05-10	1990-05-10	Processo para a recuperacao de valores minerais por flutuacao em espuma

Publications (2)

Publication Number	Publication Date
PT93998A true PT93998A (pt)	1991-11-29
PT93998B PT93998B (pt)	1998-07-31

Family

ID=20084729

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
PT9399890A PT93998B (pt)	1990-05-10	1990-05-10	Processo para a recuperacao de valores minerais por flutuacao em espuma

Country Status (1)

Country	Link
PT (1)	PT93998B (pt)

1990
- 1990-05-10 PT PT9399890A patent/PT93998B/pt not_active IP Right Cessation

Also Published As

Publication number	Publication date
PT93998B (pt)	1998-07-31

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Legal Events

Date

Code

Title

Description

1991-11-29

BB1A

Laying open of patent application

Effective date: 19910408

1998-07-31

FG3A

Patent granted, date of granting

Effective date: 19980402

2000-02-29

MM3A

Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19991031