Invention Grant
- Patent Title: Recovery of lead from battery scrap
- Patent Title (中): 从电池废料中回收铅
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Application No.: US589999Application Date: 1975-06-25
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Publication No.: US3940265APublication Date: 1976-02-24
- Inventor: Donald A. Wilson
- Applicant: Donald A. Wilson
- Applicant Address: DC Washington
- Assignee: The United States of America as represented by the Secretary of the Interior
- Current Assignee: The United States of America as represented by the Secretary of the Interior
- Current Assignee Address: DC Washington
- Main IPC: C22B5/10
- IPC: C22B5/10 ; C22B7/00 ; C22B13/00 ; C22B13/02
Abstract:
Lead is recovered from battery scrap by means of a process comprising (1) reacting the scrap with a slurry of calcium hydroxide to form a product comprising PbO and CaSO.sub.4.2H.sub.2 O, (2) filtering and drying the reaction product and (3) reacting the product with a mixture of carbon and a KCl-NaCl flux at elevated temperature to flux the calcium sulfate and reduce the lead oxide to metallic lead.
Public/Granted literature
- US5756346A Process for the enzymatic resolution of 2-amino-4-methyl-phosphinobutyric acid derivatives Public/Granted day:1998-05-26
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