发明名称 |
Process for delamination of laminated packaging |
摘要 |
The present invention relates to a delamination method for recovering constituents of a paper-based multi layered laminated packaged waste. The method comprises using of a mixture of inorganic bases to separate the constituents of the packaged waste and recover paper, plastic and/or aluminium components separately. The paper can be recovered as pulp, the plastic can be recovered as is, and the aluminium can be recovered as a water soluble salt. The delamination method of the present invention is also effective on cardboard-based multi layered laminated packaged waste. |
申请公布号 |
US8945396(B2) |
申请公布日期 |
2015.02.03 |
申请号 |
US201013516993 |
申请日期 |
2010.12.20 |
申请人 |
Ashutosh Mukhopadhyay |
发明人 |
Mukhopadhyay Ashutosh |
分类号 |
C08J11/06;C02F9/00;B32B43/00 |
主分类号 |
C08J11/06 |
代理机构 |
D'Ambrosio & Menon, PLLC |
代理人 |
D'Ambrosio & Menon, PLLC ;Menon Usha |
主权项 |
1. A process for recovery of constituents of multi-layered laminated packaging waste, said process comprising the steps of:
treating said multi-layered laminated packaging waste with a mixture of inorganic bases proportioned to dissolve bonding between said constituents; and separating said constituents from each other,
wherein the mixture of inorganic bases comprises sodium sulfite, sodium sulfate and sodium hydroxide. |
地址 |
Mumbai IN |