| 发明名称 |
RECLAMATION OF ESTER-CURED PHENOLIC RESIN BONDED FOUNDRY SANDS |
| 摘要 |
A method of preparing a particulate refractory composition for use in the manufacture of foundry molds and cores from spent foundry molds or cores formed of refractory material and an ester-cured phenolic resin binder, the method comprising the steps of breaking up the spent foundry molds or cores, mixing the resulting broken material with a particulate pozzolan additive and subjecting the mixture to a heat treatment at a temperature in the range 450 to 900°. |
| 申请公布号 |
US2015246386(A1) |
申请公布日期 |
2015.09.03 |
| 申请号 |
US201514685002 |
申请日期 |
2015.04.13 |
| 申请人 |
ASK CHEMICALS LP |
发明人 |
Busby Andrew David |
| 分类号 |
B22C1/16;B22C9/02;C08K3/00;B22C1/22 |
主分类号 |
B22C1/16 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of preparing a particulate refractory composition for use in the manufacture of foundry moulds and cores from spent foundry moulds or cores formed of refractory material and an ester-cured phenolic resin binder, the method comprising the steps of breaking up the spent foundry moulds or cores, mixing the resulting broken material with a particulate pozzolan additive and subjecting the mixture to a heat treatment at a temperature in the range 450 to 900° C. |
| 地址 |
Wilmington DE US |
