CA2022769A1 - Method of reconditioning foundry sand - Google Patents
Method of reconditioning foundry sandInfo
- Publication number
- CA2022769A1 CA2022769A1 CA002022769A CA2022769A CA2022769A1 CA 2022769 A1 CA2022769 A1 CA 2022769A1 CA 002022769 A CA002022769 A CA 002022769A CA 2022769 A CA2022769 A CA 2022769A CA 2022769 A1 CA2022769 A1 CA 2022769A1
- Authority
- CA
- Canada
- Prior art keywords
- sand
- neutralization
- regeneration
- value
- per
- 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.)
- Abandoned
Links
- 239000004576 sand Substances 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000011230 binding agent Substances 0.000 claims abstract description 17
- 230000008929 regeneration Effects 0.000 claims abstract description 17
- 238000011069 regeneration method Methods 0.000 claims abstract description 17
- 239000002253 acid Substances 0.000 claims abstract description 7
- 238000013208 measuring procedure Methods 0.000 claims abstract description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 230000002378 acidificating effect Effects 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 2
- 230000003472 neutralizing effect Effects 0.000 claims description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims 3
- 235000011149 sulphuric acid Nutrition 0.000 claims 3
- 239000001117 sulphuric acid Substances 0.000 claims 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims 2
- 239000002585 base Substances 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 55
- 239000010802 sludge Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000000440 bentonite Substances 0.000 description 4
- 229910000278 bentonite Inorganic materials 0.000 description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- 229910017974 NH40H Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/18—Plants for preparing mould materials
- B22C5/185—Plants for preparing mould materials comprising a wet reclamation step
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Processing Of Solid Wastes (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Treatment Of Sludge (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4004553A DE4004553C1 (de) | 1990-02-14 | 1990-02-14 | |
| DEP4004553.6 | 1990-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2022769A1 true CA2022769A1 (en) | 1991-08-15 |
Family
ID=6400137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002022769A Abandoned CA2022769A1 (en) | 1990-02-14 | 1990-08-07 | Method of reconditioning foundry sand |
Country Status (15)
| Country | Link |
|---|---|
| EP (1) | EP0446402A1 (de) |
| JP (1) | JPH03238141A (de) |
| KR (1) | KR910015345A (de) |
| CN (1) | CN1054021A (de) |
| BR (1) | BR9003152A (de) |
| CA (1) | CA2022769A1 (de) |
| CS (1) | CS219190A2 (de) |
| DD (1) | DD297087A5 (de) |
| DE (1) | DE4004553C1 (de) |
| DK (1) | DK149890A (de) |
| FI (1) | FI902822A7 (de) |
| HU (1) | HUT58008A (de) |
| NO (1) | NO902410L (de) |
| PL (1) | PL285083A1 (de) |
| PT (1) | PT94164A (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4129863A1 (de) * | 1991-09-07 | 1993-03-11 | Hanf Carl Elino Ind Ofenbau | Verfahren und vorrichtung zur aufbereitung von bentonitgebundenem giesserei-altsand |
| DE19927107A1 (de) * | 1999-06-14 | 2000-12-21 | Fischer Georg Gmbh & Co Kg | Verfahren und Vorrichtung zur Verminderung der Geruchsemissionen von Giessereianlagen |
| EP1222978A3 (de) * | 2001-01-15 | 2007-10-17 | Sintokogio, Ltd. | Verfahren zur Herstellung von mit Bentonit beschichtetem Sand, nach diesem Verfahren hergestellter Sand und Verfahren zur Wiederverwendung von Formsand mit Hilfe dieses beschichteten Sandes |
| DE102007027298A1 (de) * | 2007-06-11 | 2008-12-18 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | Verfahren zur Aufbereitung von Formsand |
| CN102059319B (zh) * | 2011-01-19 | 2012-12-19 | 昆明理工大学 | 一种树脂旧砂的联合再生方法 |
| CN102500458B (zh) * | 2011-11-28 | 2014-07-09 | 河海大学 | 一种洗沙方法及其专用装置 |
| CN102615243B (zh) * | 2012-03-27 | 2013-09-18 | 华中科技大学 | 一种铸造旧砂湿法间歇式再生方法及其设备 |
| JP2016147287A (ja) * | 2015-02-12 | 2016-08-18 | マツダ株式会社 | 鋳物砂の再生方法および研磨装置 |
| EP3586995B2 (de) * | 2018-06-29 | 2024-04-24 | Nemak, S.A.B. de C.V. | Verfahren zur aufbereitung einer giessereisandmischung |
| JP7142563B2 (ja) * | 2018-12-26 | 2022-09-27 | 伊藤忠セラテック株式会社 | 回収砂の再生方法 |
| EP3797896A1 (de) * | 2019-09-27 | 2021-03-31 | Finn Recycling OY | Reinigung von in giessereien verwendetem sand |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US414388A (en) * | 1889-11-05 | emmens | ||
| DE2233111C3 (de) * | 1972-07-06 | 1974-11-28 | Hermann 2105 Seevetal Jacob | Verfahren und Vorrichtung zum Regenerieren von kunstharzgebundenem Gießereialtsand |
| US4113510A (en) * | 1974-06-07 | 1978-09-12 | Societe D'applications De Procedes Industriels Et Chimiques S.A.P.I.C. | Process for regenerating foundry sand |
| CA1050209A (en) * | 1974-12-16 | 1979-03-13 | Ford Motor Company Of Canada | Sand reclamation and purification |
| JPS5292823A (en) * | 1976-02-02 | 1977-08-04 | Hitachi Ltd | Old sand cleaning reproduction process |
| DE2656672C2 (de) * | 1976-12-15 | 1978-09-21 | Daimler-Benz Ag, 7000 Stuttgart | Verfahren beim Regenerieren von Kernsand |
| CH631643A5 (de) * | 1978-04-14 | 1982-08-31 | Fischer Ag Georg | Verfahren zur regenerierung von giesserei-altsand sowie einrichtung zur durchfuehrung des verfahrens und erzeugnis des verfahrens. |
| US4401638A (en) * | 1981-12-21 | 1983-08-30 | Materias Primas, Monterrey, S.A. | Process for purifying silica sand |
| GB8317669D0 (en) * | 1983-06-29 | 1983-08-03 | British Ind Sand Ltd | Chemical treatment of sand |
| EP0152230A1 (de) * | 1984-02-03 | 1985-08-21 | Steel Castings Research And Trade Association | Regenerierung von Giessereisand |
-
1990
- 1990-02-14 DE DE4004553A patent/DE4004553C1/de not_active Expired - Lifetime
- 1990-04-26 EP EP19900107984 patent/EP0446402A1/de not_active Withdrawn
- 1990-05-03 CS CS902191A patent/CS219190A2/cs unknown
- 1990-05-07 PL PL28508390A patent/PL285083A1/xx unknown
- 1990-05-16 JP JP2126543A patent/JPH03238141A/ja active Pending
- 1990-05-25 PT PT94164A patent/PT94164A/pt not_active Application Discontinuation
- 1990-05-31 NO NO90902410A patent/NO902410L/no unknown
- 1990-06-06 FI FI902822A patent/FI902822A7/fi not_active Application Discontinuation
- 1990-06-12 HU HU903815A patent/HUT58008A/hu unknown
- 1990-06-19 DK DK149890A patent/DK149890A/da not_active IP Right Cessation
- 1990-06-27 KR KR1019900009544A patent/KR910015345A/ko not_active Ceased
- 1990-06-28 BR BR909003152A patent/BR9003152A/pt unknown
- 1990-07-05 CN CN90103344A patent/CN1054021A/zh active Pending
- 1990-08-07 CA CA002022769A patent/CA2022769A1/en not_active Abandoned
- 1990-08-15 DD DD90343469A patent/DD297087A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FI902822A0 (fi) | 1990-06-06 |
| DK149890A (da) | 1991-08-15 |
| PL285083A1 (en) | 1991-10-07 |
| HUT58008A (en) | 1992-01-28 |
| PT94164A (pt) | 1991-09-30 |
| FI902822L (fi) | 1991-08-15 |
| NO902410D0 (no) | 1990-05-31 |
| DE4004553C1 (de) | 1991-10-10 |
| KR910015345A (ko) | 1991-09-30 |
| FI902822A7 (fi) | 1991-08-15 |
| HU903815D0 (en) | 1990-11-28 |
| DD297087A5 (de) | 1992-01-02 |
| DK149890D0 (da) | 1990-06-19 |
| EP0446402A1 (de) | 1991-09-18 |
| BR9003152A (pt) | 1991-11-12 |
| JPH03238141A (ja) | 1991-10-23 |
| CS219190A2 (en) | 1991-09-15 |
| NO902410L (no) | 1991-08-15 |
| CN1054021A (zh) | 1991-08-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |