Conversion of lead-contaminated soil into ceramic products

Details Conversion of lead-contaminated soil into ceramic products Conversion of lead-contaminated soil into ceramic products

1996-08-14

1998-07-14

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264601, 264679, 264680, 501155, C04B 3302

Patent

active

057799490

ABSTRACT:
A process is provided for converting lead-contaminated soil to commercially-useful ceramic shapes, in which the lead is covalently-bonded and from which it does not leach. The soil is mixed with conventional brick or tile fabricating ingredients to form a premix which is formed into a suitable shape and fired at a temperature in the range of 150.degree. F. to 250.degree. F.

REFERENCES:
patent: 4874153 (1989-10-01), Hashimoto
patent: 4921538 (1990-05-01), Lafser
patent: 4988376 (1991-01-01), Mason et al.
patent: 5067978 (1991-11-01), Fowler
patent: 5085838 (1992-02-01), Mason
patent: 5245120 (1993-09-01), Srinivasachar
patent: 5278111 (1994-01-01), Frame
patent: 5556447 (1996-09-01), Srinivasachar

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