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WO2000075384A1 - Process of agglomerating particulate waste material - Google Patents

Process of agglomerating particulate waste material Download PDF

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Publication number
WO2000075384A1
WO2000075384A1 PCT/ZA2000/000103 ZA0000103W WO0075384A1 WO 2000075384 A1 WO2000075384 A1 WO 2000075384A1 ZA 0000103 W ZA0000103 W ZA 0000103W WO 0075384 A1 WO0075384 A1 WO 0075384A1
Authority
WO
WIPO (PCT)
Prior art keywords
slurry
particulate material
desired shape
fines
dust
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.)
Ceased
Application number
PCT/ZA2000/000103
Other languages
French (fr)
Inventor
Aldrin Bernard Beyer
Pierre Jordan
Leonard Linda Msibi
Maroun George Rahme
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.)
NU-ROCK Corp Sarl
Original Assignee
NU-ROCK Corp Sarl
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 NU-ROCK Corp Sarl filed Critical NU-ROCK Corp Sarl
Priority to AU56436/00A priority Critical patent/AU5643600A/en
Publication of WO2000075384A1 publication Critical patent/WO2000075384A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26—Silicates of the alkali metals
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
    • C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
    • C10L5/12—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with inorganic binders
    • 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
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/244—Binding; Briquetting ; Granulating with binders organic
    • 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/02—Working-up flue dust
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00767—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • This invention relates to a process of agglomerating particulate material and to articles produced by agglomerating particulate material.
  • Particulate material and particularly particulate material emanating from industrial processes often have commercial value.
  • dust or fines generated in mineral beneficiation plants by abrasion as ore is transported contains traces of minerals. This dust cannot be introduced into furnaces because updrafts within the furnaces channel the dust into the chimney and into the atmosphere.
  • dust produced in the mining, transporting and working of coal, coke and other solid combustible fuels is also lost.
  • waste particulate material it is also often desirable to utilise waste particulate material to produce bricks and building blocks thereby conserving natural resources conventionally used to produce such items.
  • waste particulate material it is desirable to agglomerate solid, particulate, hazardous waste material to facilitate storage and handling.
  • agglomerating particulate waste material is to embed the material in cement, usually portland cement. This does tend to be expensive however and the expense can often negate the beneficial aspects of agglomeration. In addition, when solid, particulate, hazardous waste is embedded in cement it can leach out of the agglomeration which, to a large extent, also negates the process.
  • the particulate material is metallurgical fines, particularly chromium metal oxide fines, alternatively platinum tailing oxide fines, further alternatively gold tailing fines, and for the desired shape into which the slurry is formed to be a block which is suitable for introduction into an ore beneficiation process.
  • the particulate material to be combustible fuel dust, particularly coke dust, alternatively coal dust, further alternatively charcoal dust, and for the desired shape into which the slurry is formed to be a block, alternatively a brick, further alternatively a briquette, all of which are suitable for introduction into a furnace or a domestic fire.
  • the particulate material to be sand, material from mine dumps or the like and for the desired shape into which the slurry is formed to be a building brick, alternatively a building block.
  • the particulate material to contain matter which is classified as hazardous to human or animal health and for the desired shape into which the slurry is formed to be any shape suitable to facilitate storage of said particulate material.
  • the mixture to contain an accelerator in the form of an alkali, preferably an hydroxide, further preferably a metal hydroxide.
  • the mixture to contain, if required, a decelerator in the form of a carbon compound and preferably an organic carbon compound.
  • the slurry when shaped, to be cured at a temperature in excess of 25 degrees centigrade, and preferably at a temperature of between 40 degrees centigrade and 50 degrees centigrade.
  • the slurry to incorporate, in the shaping stage, reinforcing and other elements which are embedded in the cured agglomerate.
  • the invention also extends to a shaped article produced in accordance with the above described method.
  • Example 1 is an embodiment in which titanium dust is agglomerated for beneficiation
  • Example 2 is an embodiment in which solid, combustible fuel dust is agglomerated for use as a fuel
  • Example 3 is an embodiment in which metallurgical slags are agglomerated for use in the building industry.
  • a process for the agglomeration of particulate material in this example, titanium dust or slag obtained from a titanium extraction plant, comprises the steps of mixing collected titanium particulate material with sodium silicate and an accelerating agent in the form of sodium hydroxide.
  • the titanium is in the form of a slag so water need not be added to form a slurry.
  • the slurry obtained as described above is then formed into bricks which are substantially the same size and shape as bricks used for building and the bricks are left to cure for 8 hours at 40 degrees centigrade. Once cured the bricks can be stockpiled before being channelled through a titanium extraction plant.
  • a process for agglomerating a solid, combustible fuel dust comprises the steps of mixing the coal with water, sodium silicate, sodium hydroxide, electric arc furnace dust, chromite ore, fly ash and granulated blast furnace slag powder to form a slurry which is formed into bricks and cured at 50 degrees centigrade for 8 hours.
  • the bricks so formed can also be stockpiled and used in a furnace thus making the coal available for use.
  • charcoal fines can be used instead of the Duff coal and that briquettes for use in the domestic environment for heating or cooking as opposed to industrial furnaces can be formed.
  • Example 3 a process for agglomerating a metallurgical slag in particulate form to form blocks for use in the building industry is described.
  • the slag which contains heavy metal oxides, is mixed with sodium silicate and sodium hydroxide.
  • sodium silicate and sodium hydroxide As in the previous example.
  • the resulting slurry is moulded to form bricks or hollow building blocks and cured at 40 degrees centigrade for 8 hours before being suitable for use.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

This invention relates to a process of agglomerating what is generally regarded as waste particulate material with a sodium silicate binder and thereby converting said material into a useful form. In one embodiment of the invention the particulate material is precious metal fines which, when agglomerated, are suitable for introduction into an ore beneficiation process. In another, the particulate material is a combustible fuel dust which, when agglomerated, is suitable for use as a solid combustible fuel. In yet another embodiment the particulate material is suitable, when agglomerated for use as building blocks or bricks. It is also envisaged that hazardous particulate material can be agglomerated and thereby rendered suitable for storage.

Description

PROCESS OF AGGLOMERATING PARTICULATE WASTE MATERIAL
FIELD OF THE INVENTION
This invention relates to a process of agglomerating particulate material and to articles produced by agglomerating particulate material.
BACKGROUND TO THE INVENTION
Particulate material and particularly particulate material emanating from industrial processes often have commercial value. Thus, for example, dust or fines generated in mineral beneficiation plants by abrasion as ore is transported contains traces of minerals. This dust cannot be introduced into furnaces because updrafts within the furnaces channel the dust into the chimney and into the atmosphere. Likewise, dust produced in the mining, transporting and working of coal, coke and other solid combustible fuels is also lost.
In addition, it is also often desirable to utilise waste particulate material to produce bricks and building blocks thereby conserving natural resources conventionally used to produce such items. In certain other instances it is desirable to agglomerate solid, particulate, hazardous waste material to facilitate storage and handling.
One method of agglomerating particulate waste material is to embed the material in cement, usually portland cement. This does tend to be expensive however and the expense can often negate the beneficial aspects of agglomeration. In addition, when solid, particulate, hazardous waste is embedded in cement it can leach out of the agglomeration which, to a large extent, also negates the process. OBJECT OF THE INVENTION
It is an object of this invention to provide a process for agglomerating particulate material and to provide articles produced by the agglomeration of particulate material.
SUMMARY OF THE INVENTION
In accordance with this invention there is provided a process for the agglomeration of particulate material comprising the steps of:
a) collecting particulate material;
b) mixing said particulate material with sodium silicate, metal oxides an accelerating agent or a decelerating agent as desired, and water, if necessary, to form a slurry;
c) forming the slurry into a desired shape; and,
d) allowing the desired shape to cure.
There is also provided for the particulate material to be metallurgical fines, particularly chromium metal oxide fines, alternatively platinum tailing oxide fines, further alternatively gold tailing fines, and for the desired shape into which the slurry is formed to be a block which is suitable for introduction into an ore beneficiation process.
Alternatively there is provided for the particulate material to be combustible fuel dust, particularly coke dust, alternatively coal dust, further alternatively charcoal dust, and for the desired shape into which the slurry is formed to be a block, alternatively a brick, further alternatively a briquette, all of which are suitable for introduction into a furnace or a domestic fire. Further alternatively there is provided for the particulate material to be sand, material from mine dumps or the like and for the desired shape into which the slurry is formed to be a building brick, alternatively a building block.
Still further alternatively there is provided for the particulate material to contain matter which is classified as hazardous to human or animal health and for the desired shape into which the slurry is formed to be any shape suitable to facilitate storage of said particulate material.
There is further provided for the mixture to contain an accelerator in the form of an alkali, preferably an hydroxide, further preferably a metal hydroxide.
There is also provided for the mixture to contain, if required, a decelerator in the form of a carbon compound and preferably an organic carbon compound.
There is also provided for the slurry, when shaped, to be cured at a temperature in excess of 25 degrees centigrade, and preferably at a temperature of between 40 degrees centigrade and 50 degrees centigrade.
There is further provided for the slurry to incorporate, in the shaping stage, reinforcing and other elements which are embedded in the cured agglomerate.
The invention also extends to a shaped article produced in accordance with the above described method.
BRIEF DESCRIPTION OF THE EXAMPLES
Embodiments of the invention will be described below with reference to the accompanying non-limiting examples in which: Example 1 is an embodiment in which titanium dust is agglomerated for beneficiation;
Example 2 is an embodiment in which solid, combustible fuel dust is agglomerated for use as a fuel; and,
Example 3 is an embodiment in which metallurgical slags are agglomerated for use in the building industry.
DETAILED DESCRIPTION WITH REFERENCE TO THE EXAMPLES
Referring to Example 1 , a process for the agglomeration of particulate material, in this example, titanium dust or slag obtained from a titanium extraction plant, comprises the steps of mixing collected titanium particulate material with sodium silicate and an accelerating agent in the form of sodium hydroxide. In this embodiment the titanium is in the form of a slag so water need not be added to form a slurry.
The slurry obtained as described above is then formed into bricks which are substantially the same size and shape as bricks used for building and the bricks are left to cure for 8 hours at 40 degrees centigrade. Once cured the bricks can be stockpiled before being channelled through a titanium extraction plant.
While the above example deals with the extraction of titanium it is envisaged that the same process can be used to recover a variety of minerals from mineral dust or slag. Examples of such minerals would include chromium, platinum, iron, aluminium and gold to mention but a few.
Referring to Example 2, a process for agglomerating a solid, combustible fuel dust, in this example, Duff coal, comprises the steps of mixing the coal with water, sodium silicate, sodium hydroxide, electric arc furnace dust, chromite ore, fly ash and granulated blast furnace slag powder to form a slurry which is formed into bricks and cured at 50 degrees centigrade for 8 hours. The bricks so formed can also be stockpiled and used in a furnace thus making the coal available for use.
In addition, it is envisaged that charcoal fines can be used instead of the Duff coal and that briquettes for use in the domestic environment for heating or cooking as opposed to industrial furnaces can be formed.
Referring to Example 3, a process for agglomerating a metallurgical slag in particulate form to form blocks for use in the building industry is described. In this embodiment the slag, which contains heavy metal oxides, is mixed with sodium silicate and sodium hydroxide. As in the previous example.
The resulting slurry is moulded to form bricks or hollow building blocks and cured at 40 degrees centigrade for 8 hours before being suitable for use.
The above embodiments illustrate three ways in which particulate material can be agglomerated but it is envisaged that the invention has a wider applicability than the above. It is envisaged that this attribute will enable the process of the invention to be utilised to encapsulate potentially hazardous and hazardous wastes rendering them suitable for storage in a non-hazardous form.
Furthermore the chemical reactions occurring in the slurry during curing are exothermic in nature thus less energy is required during the curing process at elevated temperatures.

Claims

1. A process of agglomerating particulate material characterised by: a) collecting particulate material; b) mixing said particulate material with sodium silicate, metal oxides an accelerating agent or a decelerating agent as desired, and water, if necessary, to form a slurry; c) forming the slurry into a desired shape; and, d) allowing the desired shape to cure.
2. A process as claimed in claim 1 characterised in that the particulate material is metallurgical fines.
3. A process as claimed in claim 2 characterised in that the metallurgical fines are chromium metal oxide fines.
4. A process as claimed in claim 2 characterised in that the metallurgical fines are platinum tailing oxide fines.
5. A process as claimed in claim 2 characterised in that the metallurgical fines are gold tailing fines.
6. A process as claimed in any one of the preceding claims characterised in that the desired shape into which the slurry is formed is a block which is suitable for introduction into an ore beneficiation process.
7. A process as claimed in claim 1 characterised in that the particulate material is combustible fuel dust.
8. A process as claimed in claim 7 characterised in that the combustible fuel dust is coke dust.
. A process as claimed in claim 7 characterised in that the combustible fuel dust is coal dust.
10. A process as claimed in claim 7 characterised in that the combustible fuel dust is charcoal dust.
11. A process as claimed in any one of claims 7 to 10 characterised in that the desired shape into which the slurry is formed is a block, which is suitable for introduction into a furnace or a domestic fire.
12. A process as claimed in any one of claims 7 to 10 characterised in that the desired shape into which the slurry is formed is a brick, which is suitable for introduction into a furnace or a domestic fire.
13. A process as claimed in any one of claims 7 to 10 characterised in that the desired shape into which the slurry is formed is a briquette, which is suitable for introduction into a furnace or a domestic fire.
14. A process as claimed in claim 1 characterised in that the particulate material is sand.
15. A process as claimed in claim 1 characterised in that the particulate material is material from mine dumps.
16. A process as claimed in claim 14 or in claim 15 characterised in that the desired shape into which the slurry is formed is a building brick.
17. A process as claimed in claim 14 or in claim 15 characterised in that the desired shape into which the slurry is formed is a building block.
18. A process as claimed in claim 1 characterised in that the particulate material contains matter which is classified as hazardous to human or animal health.
19. A process as claimed in claim 18 characterised in that the desired shape into which the slurry is formed to be any shape suitable to facilitate storage of said particulate material.
20. A process as claimed in any one of the preceding claims characterised in that the mixture contains an accelerator in the form of an alkali.
21. A process as claimed in claim 20 characterised in that the accelerator is an hydroxide.
22. A process as claimed in claim 21 characterised in that the hydroxide is a metal hydroxide.
23. A process as claimed in any one of claims 20 to 22 characterised in that the mixture also contains, if required, a decelerator.
24. A process as claimed in claim 23 characterised in that the decelerator is a carbon compound.
25. A process as claimed in claim 24 characterised in that the carbon compound is an organic carbon compound.
26. A process as claimed in any one of the preceding claims characterised in that the slurry, when shaped, is cured at a temperature in excess of 25 °C.
27. A process as claimed in claim 26 characterised in that the slurry, when shaped, is cured at a temperature of between 40 °C and 50 °C.
28. A process as claimed in any on of the preceding claims characterised in that there is incorporated into the slurry at the shaping stage, reinforcing and other elements which are embedded in the cured agglomerate.
29. A process for the agglomerate of particulate material substantially as herein described with reference to and as exemplified in any one of the accompanying examples.
30. A shaped article produced in accordance with the process as claimed in any one of the preceding claims.
PCT/ZA2000/000103 1999-06-03 2000-06-02 Process of agglomerating particulate waste material Ceased WO2000075384A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU56436/00A AU5643600A (en) 1999-06-03 2000-06-02 Process of agglomerating particulate waste material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA99/3747 1999-06-03
ZA993747 1999-06-03

Publications (1)

Publication Number Publication Date
WO2000075384A1 true WO2000075384A1 (en) 2000-12-14

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6743275B1 (en) 2000-05-22 2004-06-01 Alternative Casting Technologies, Llc Method of making and using ferrous metal particle briquettes
WO2006042755A3 (en) * 2004-10-20 2006-08-24 Rockwool Mineralwool Gmbh & Co Moulding for generating a mineral melted mass to be defibrated in order to produce insulating materials made of mineral fibres
WO2006042757A3 (en) * 2004-10-20 2006-09-08 Rockwool Mineralwolle Shaped articles for the production of a mineral melt that is to be reduced to fibers and is used for producing insulating materials made of mineral fibers
WO2006042756A3 (en) * 2004-10-20 2006-09-08 Rockwool Mineralwolle Shaped article for the production of a mineral melt that is to be reduced to fibers and is used for producing insulating materials made of mineral fibers
RU2290378C1 (en) * 2005-07-14 2006-12-27 Государственное образовательное учреждение высшего профессионального образования "Братский государственный университет" Raw mix and a process for manufacturing granulated heat-insulation material
RU2295508C1 (en) * 2005-07-14 2007-03-20 Государственное образовательное учреждение высшего профессионального образования "Братский государственный университет" Raw mix and a method for manufacturing granulated heat-insulating material
EP1801084A1 (en) * 2005-12-20 2007-06-27 Pavel Svoboda Fly-ash concrete compositon, method of preparation by geo-polymeric reaction of activated fly-ash and its use.
WO2007080356A1 (en) * 2006-01-11 2007-07-19 Solsys Limited Production of carbonaceous metal ore pellets
CN100422116C (en) * 2007-05-31 2008-10-01 郑州祥通耐火陶瓷有限公司 Casting material for carbon gyration calcining kiln confected by gold tailings
CN100422117C (en) * 2007-05-31 2008-10-01 郑州祥通耐火陶瓷有限公司 Gas permeable brick for producing carbon baking furnace flame path wall by gold tailings and iron tailings
RU2378224C1 (en) * 2008-07-01 2010-01-10 Государственное образовательное учреждение высшего профессионального образования "Братский государственный университет" Raw mixture for preparing light tone engobe for wall ceramics
CN102452833A (en) * 2011-09-23 2012-05-16 贵州省建筑材料科学研究设计院 Tourmaline type gold tailing sintered wall material and preparation method thereof
CN102643699A (en) * 2012-05-09 2012-08-22 黑龙江科技学院 Application of coked sludge serving as formed coal adhesive
CN107243494A (en) * 2016-07-21 2017-10-13 山东九曲圣基新型建材有限公司 A kind of method of use gold tailings waste residue sand
WO2018112547A1 (en) * 2016-12-23 2018-06-28 Nu-Rock Corporation S.A.R.L. Process and apparatus for producing a shaped article

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WO1999060175A1 (en) * 1998-05-18 1999-11-25 Mineral Enhancement South Africa (Proprietary) Limited Conglomeration of minerals from a granular state with binder including waterglass, acrylic resin and vinyl alcohol

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Publication number Priority date Publication date Assignee Title
JPS52129729A (en) * 1976-04-25 1977-10-31 Nisshin Eng Method of manufacturing hardenable composite from industrial waste slag
DE2721229A1 (en) * 1976-05-23 1977-12-01 Samancor Management Services Mineral ore briquettes for use in arc furnace - prepd. from mixt. of ore and alkali metal silicate
JPS53110613A (en) * 1977-03-09 1978-09-27 Tsurumi Goseirozai Co Ltd Poured in refractories
US4256705A (en) * 1979-04-13 1981-03-17 The United States Of America As Represented By The Secretary Of The Interior Leaching agglomerated gold - silver ores
US4541833A (en) * 1984-03-28 1985-09-17 Mueller Warren B Coal composition
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WO2006042757A3 (en) * 2004-10-20 2006-09-08 Rockwool Mineralwolle Shaped articles for the production of a mineral melt that is to be reduced to fibers and is used for producing insulating materials made of mineral fibers
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CN100422117C (en) * 2007-05-31 2008-10-01 郑州祥通耐火陶瓷有限公司 Gas permeable brick for producing carbon baking furnace flame path wall by gold tailings and iron tailings
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CN102452833A (en) * 2011-09-23 2012-05-16 贵州省建筑材料科学研究设计院 Tourmaline type gold tailing sintered wall material and preparation method thereof
CN102643699A (en) * 2012-05-09 2012-08-22 黑龙江科技学院 Application of coked sludge serving as formed coal adhesive
CN107243494A (en) * 2016-07-21 2017-10-13 山东九曲圣基新型建材有限公司 A kind of method of use gold tailings waste residue sand
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