The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7121995 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 17, 2006

Filed:

Mar. 14, 2005
Applicant:

Keith Edward Forrester, Meredith, NH (US);

Inventor:

Keith Edward Forrester, Meredith, NH (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B09B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

This invention provides a method for stabilization of lead smelter slag and matte subject to acid and water leaching tests or leach conditions by addition of stabilizing agents into the smelter feed such that leaching of lead is inhibited to desired levels. The resultant waste after stabilization is deemed suitable for on-site reuse, off-site reuse or disposal as RCRA non-hazardous waste.


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