GB1476609A - Sand reclamation and purification - Google Patents
Sand reclamation and purificationInfo
- Publication number
- GB1476609A GB1476609A GB4265375A GB4265375A GB1476609A GB 1476609 A GB1476609 A GB 1476609A GB 4265375 A GB4265375 A GB 4265375A GB 4265375 A GB4265375 A GB 4265375A GB 1476609 A GB1476609 A GB 1476609A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sand
- upgraded
- content
- burst
- convert
- 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.)
- Expired
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
1476609 Upgraded or reclaimed sand FORD MOTOR CO Ltd 17 Oct 1975 [16 Dec 1974] 42653/75 Heading C1A [Also in Division C3] The invention comprises an upgraded sand of pH 7À5-10À0, clay content no more than 0À1%, acid demand (as defined) no more than 15, a CaCO 3 content rendering no appreciable effervescence when 10 g. of sand is treated with 30 ml. of 50% HCl, moisture content no more than 0À25% and (CaO+MgO) content no more than 0À2%. Such sand is obtained by calcining new, raw or used (e.g. in foundry moulding) sand under suitable temperature and pressure conditions to convert clay on or in the sand to a friable material and to convert dolomite limestone to oxide (this step also removes resin); subjecting the product to severe agitation by scrubbing the grains against each other in a dry condition to burst or split the shell-like coating or glaze thereon; and separating and collecting the burst or split shells to leave upgraded sand. The starting sand may first be subjected to magnetic separation to remove ferrous impurities.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53336774A | 1974-12-16 | 1974-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1476609A true GB1476609A (en) | 1977-06-16 |
Family
ID=24125657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4265375A Expired GB1476609A (en) | 1974-12-16 | 1975-10-17 | Sand reclamation and purification |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5186019A (en) |
| CA (1) | CA1050209A (en) |
| DE (1) | DE2554405A1 (en) |
| GB (1) | GB1476609A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113426942A (en) * | 2021-06-24 | 2021-09-24 | 南阳仁创砂业科技有限公司 | Method for preparing precoated sand for cast steel from recycled material |
| CN117123729A (en) * | 2023-07-06 | 2023-11-28 | 江门市新会区金昌矽砂有限公司 | Regeneration preparation process of baozhu sand |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH631643A5 (en) * | 1978-04-14 | 1982-08-31 | Fischer Ag Georg | METHOD FOR REGENERATING OLD FOUNDRY SAND AND DEVICE FOR CARRYING OUT THE METHOD AND PRODUCT OF THE METHOD. |
| US4449566A (en) * | 1979-04-09 | 1984-05-22 | Ford Motor Company | Foundry sand reclamation |
| US4487372A (en) * | 1982-04-16 | 1984-12-11 | Combustion Engineering, Inc. | Thermal sand reclamation system |
| DE4004553C1 (en) * | 1990-02-14 | 1991-10-10 | Saz Sommer Aluminium Zug Ag, Zug, Ch | |
| US5211215A (en) * | 1990-02-14 | 1993-05-18 | Sommer Hermann W | Process for neutralizing regenerated sand |
| EP0521201B1 (en) * | 1991-06-29 | 1997-04-02 | Dr. Küttner GmbH & Co. KG | Process for reclaiming used foundry sand |
| DE102016206546A1 (en) * | 2016-04-19 | 2017-10-19 | Siemens Aktiengesellschaft | Apparatus for selecting a fraction of a starting material |
| CN110510620B (en) * | 2019-09-11 | 2021-08-24 | 江苏凯达石英股份有限公司 | Purification method of high-purity quartz sand tailings |
-
1975
- 1975-09-22 CA CA236,034A patent/CA1050209A/en not_active Expired
- 1975-10-17 GB GB4265375A patent/GB1476609A/en not_active Expired
- 1975-12-03 DE DE19752554405 patent/DE2554405A1/en not_active Withdrawn
- 1975-12-15 JP JP14855975A patent/JPS5186019A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113426942A (en) * | 2021-06-24 | 2021-09-24 | 南阳仁创砂业科技有限公司 | Method for preparing precoated sand for cast steel from recycled material |
| CN117123729A (en) * | 2023-07-06 | 2023-11-28 | 江门市新会区金昌矽砂有限公司 | Regeneration preparation process of baozhu sand |
| CN117123729B (en) * | 2023-07-06 | 2024-05-24 | 江门市新会区金昌矽砂有限公司 | Regeneration preparation process of baozhu sand |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5186019A (en) | 1976-07-28 |
| JPS5319535B2 (en) | 1978-06-21 |
| CA1050209A (en) | 1979-03-13 |
| DE2554405A1 (en) | 1976-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |