FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy. Proposed method comprises using the used moulding sand glued by liquid glass-based binder, adding dispersed metal oxide thereto and heat treatment of used moulding glass. Here, used moulding sand is heated to at least 200°C to obtain recovered moulding sand. Dispersed metal oxide is selected from the set including silicon dioxide, aluminium oxide, titanium oxide, zinc oxide mixed thereof.
EFFECT: recovery with mechanical processing to add to mould toughness made of recovered sand.
21 cl, 7 tbl, 5 ex
| Title |
Year |
Author |
Number |
| MOULD MATERIAL MIXTURES CONTAINING METAL OXIDES OF ALUMINIUM AND ZIRCONIUM IN PARTICULATE FORM |
2013 |
- Deters Heinz
- Zupan Henning
- Oberleiter Martin
|
RU2654406C2 |
| MOLDING MATERIAL MIXTURES CONTAINING METAL OXIDES OF ALUMINUM AND ZIRCONIUM IN PARTICULATE FORM |
2013 |
- Deters Heinz
- Zupan Henning
- Oberleiter Martin
|
RU2659562C2 |
| SAND BLENDS CONTAINING ORGANIC ACID SALTS AND THEIR APPLICATION |
2010 |
- Shoumen, Ral'F, E.
- Kharmon, Shon, B.
|
RU2567932C2 |
| MOULDING SANDS CONTAINING SULPHATE AND/OR NITRATE SALTS AND THEIR USE |
2010 |
- Shoumen,Ral'F,E.
- Kharmon,Shon,B.
|
RU2566108C2 |
| MOULDING SANDS CONTAINING CARBONATE SALTS AND THEIR USE |
2010 |
- Shoumen,Ral'F,E.
- Kharmon,Shon,B.
|
RU2564656C2 |
| MIXTURES OF MOULDING MATERIAL CONTAINING BARIUM SULPHATE |
2013 |
- Korschgen, Jorg
- Oberleiter, Martin
- Deters, Heinz
|
RU2640686C2 |
| METHOD OF LAYER-BY-LAYER FORMATION OF MOULDS AND RODS BY MEANS OF LIQUID BINDER-CONTAINING BINDER AND BINDER CONTAINING LIQUID GLASS |
2015 |
- Zupan, Henning
- Deters, Heinz
|
RU2706616C2 |
| MIXTURES OF MOLDING MATERIALS CONTAINING BORON OXIDE COMPOUND AND METHOD OF PRODUCING MOLDS AND RODS |
2014 |
- Deters, Heinz
- Oberleiter, Martin
- Zupan, Henning
|
RU2703746C2 |
| MIXTURE OF LITHIUM-CONTAINING MOLDING MATERIAL BASED ON INORGANIC BINDER TO OBTAIN MOLDS AND RODS FOR CASTING METAL |
2014 |
- Deters, Heinz
- Lincke, Hannes
- Resch, Ronja
|
RU2699133C2 |
| USED SAND MIXTURE AND/OR CORE MIXTURE PROCESSING METHOD |
1991 |
|
RU2030949C1 |
