ZA92946B - Process of reasdting refractory gold ores - Google Patents
Process of reasdting refractory gold oresInfo
- Publication number
- ZA92946B ZA92946B ZA92946A ZA92946A ZA92946B ZA 92946 B ZA92946 B ZA 92946B ZA 92946 A ZA92946 A ZA 92946A ZA 92946 A ZA92946 A ZA 92946A ZA 92946 B ZA92946 B ZA 92946B
- Authority
- ZA
- South Africa
- Prior art keywords
- reasdting
- gold ores
- refractory gold
- refractory
- ores
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1845—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with particles moving upwards while fluidised
- B01J8/1863—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with particles moving upwards while fluidised followed by a downward movement outside the reactor and subsequently re-entering it
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
- C22B1/10—Roasting processes in fluidised form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
- F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
- F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
- F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
- F23C2206/101—Entrained or fast fluidised bed
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4103965A DE4103965C1 (en) | 1991-02-09 | 1991-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA92946B true ZA92946B (en) | 1993-08-10 |
Family
ID=6424724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA92946A ZA92946B (en) | 1991-02-09 | 1992-02-10 | Process of reasdting refractory gold ores |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0501542B1 (en) |
AU (1) | AU643870B2 (en) |
BR (1) | BR9200431A (en) |
CA (1) | CA2060878C (en) |
DE (2) | DE4103965C1 (en) |
ES (1) | ES2087427T3 (en) |
OA (1) | OA09588A (en) |
ZA (1) | ZA92946B (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA926237B (en) * | 1991-09-25 | 1993-03-03 | Bhp Utah Int Inc | Sulfide roasting with lime. |
US5380504A (en) * | 1993-04-23 | 1995-01-10 | Fuller Company | Treatment of gold bearing ore |
DE4329417C1 (en) * | 1993-09-01 | 1994-08-18 | Metallgesellschaft Ag | Process for roasting refractory gold ores |
US5972302A (en) * | 1996-08-27 | 1999-10-26 | Emr Microwave Technology Corporation | Method for the microwave induced oxidation of pyritic ores without the production of sulphur dioxide |
DE19719481C2 (en) | 1997-05-07 | 2000-09-07 | Metallgesellschaft Ag | Process for setting a circulating fluidized bed |
AUPP208498A0 (en) * | 1998-03-02 | 1998-03-26 | Arton (No 001) Pty Ltd | Gold recovery process |
DE10260733B4 (en) | 2002-12-23 | 2010-08-12 | Outokumpu Oyj | Process and plant for the heat treatment of iron oxide-containing solids |
DE10260741A1 (en) | 2002-12-23 | 2004-07-08 | Outokumpu Oyj | Process and plant for the heat treatment of fine-grained solids |
DE10260731B4 (en) | 2002-12-23 | 2005-04-14 | Outokumpu Oyj | Process and plant for the heat treatment of iron oxide-containing solids |
DE10260739B3 (en) | 2002-12-23 | 2004-09-16 | Outokumpu Oy | Process and plant for producing metal oxide from metal compounds |
DE10260738A1 (en) | 2002-12-23 | 2004-07-15 | Outokumpu Oyj | Process and plant for conveying fine-grained solids |
DE10260734B4 (en) | 2002-12-23 | 2005-05-04 | Outokumpu Oyj | Process and plant for the production of carbon coke |
DE10260737B4 (en) | 2002-12-23 | 2005-06-30 | Outokumpu Oyj | Process and plant for the heat treatment of titanium-containing solids |
DE102015107435A1 (en) * | 2015-05-12 | 2016-11-17 | Outotec (Finland) Oy | Process for the partial roasting of copper- and / or gold-containing concentrates |
DE102019209043A1 (en) * | 2019-06-21 | 2020-12-24 | Litherm Technologies GmbH | PROCESS FOR MANUFACTURING FIRED END PRODUCTS FROM NATURAL, CARBONATE-CONTAINING GRAINY SUBSTANCES AS EDUCT AND DEVICE FOR CARRYING OUT THIS PROCESS |
WO2020254625A1 (en) | 2019-06-21 | 2020-12-24 | Litherm Technologies GmbH | Method and device for producing fired end products from natural, carbonaceous, granular materials as starting material |
DE102019209044A1 (en) * | 2019-06-21 | 2020-12-24 | Litherm Technologies GmbH | PROCESS AND DEVICE FOR MANUFACTURING FIRED END PRODUCTS FROM NATURAL GRAINY MATERIALS CONTAINING CARBONATE AS EDUCT |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2650159A (en) * | 1949-11-23 | 1953-08-25 | Dorr Co | Treating arsenical gold ores |
US2596580A (en) * | 1950-01-05 | 1952-05-13 | Dorr Co | Treating arsenical gold ores |
DE2624302A1 (en) * | 1976-05-31 | 1977-12-22 | Metallgesellschaft Ag | PROCEDURE FOR CARRYING OUT EXOTHERMAL PROCESSES |
US4919715A (en) * | 1988-06-03 | 1990-04-24 | Freeport Mcmoran Inc. | Treating refractory gold ores via oxygen-enriched roasting |
-
1991
- 1991-02-09 DE DE4103965A patent/DE4103965C1/de not_active Expired - Lifetime
-
1992
- 1992-02-03 ES ES92200288T patent/ES2087427T3/en not_active Expired - Lifetime
- 1992-02-03 EP EP92200288A patent/EP0501542B1/en not_active Expired - Lifetime
- 1992-02-03 DE DE59206264T patent/DE59206264D1/en not_active Expired - Fee Related
- 1992-02-07 OA OA60144A patent/OA09588A/en unknown
- 1992-02-07 CA CA002060878A patent/CA2060878C/en not_active Expired - Lifetime
- 1992-02-07 BR BR929200431A patent/BR9200431A/en not_active IP Right Cessation
- 1992-02-07 AU AU10769/92A patent/AU643870B2/en not_active Expired
- 1992-02-10 ZA ZA92946A patent/ZA92946B/en unknown
Also Published As
Publication number | Publication date |
---|---|
ES2087427T3 (en) | 1996-07-16 |
DE4103965C1 (en) | 1992-04-09 |
AU1076992A (en) | 1992-08-13 |
CA2060878C (en) | 2003-01-28 |
EP0501542A1 (en) | 1992-09-02 |
CA2060878A1 (en) | 1992-08-10 |
BR9200431A (en) | 1992-10-13 |
AU643870B2 (en) | 1993-11-25 |
DE59206264D1 (en) | 1996-06-20 |
EP0501542B1 (en) | 1996-05-15 |
OA09588A (en) | 1993-04-30 |
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