METHOD FOR RECOVERING USEFUL PRECIOUS METAL OR THE LIKE USING HEATING TREATMENT FURNACE

Title:

METHOD FOR RECOVERING USEFUL PRECIOUS METAL OR THE LIKE USING HEATING TREATMENT FURNACE

Document Type and Number:

Japanese Patent JP2018024940

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a method for recovering useful metals from combustible members of various electronic substrate easily and surely without high temperature fusion or oxidation.SOLUTION: There is provided a method for recovering useful metals or the like, having a process for increasing a temperature in a heating treatment furnace by burning a heat resource material such as chip or char, a process for reading measured values of a temperature in a re-combustion furnace while re-burning an exhaust gas in the heating treatment furnace discharged from the heating treatment furnace, a process for inducing the exhaust gas in the re-combustion furnace via an exhaust gas induction device, a process for treating a measured value of a temperature of a treatment reaction part in the heating treatment furnace and a measured value of the temperature in the re-combustion furnace by a temperature control regulation device, a heating treatment process of organic waste having combustible members under an incomplete burning atmosphere by introducing air into the heating treatment furnace, and a process for introducing the exhaust gas in the re-combustion furnace to a cooling tower, and having process for reducing the exhaust gas temperature in the re-combustion furnace capable of dramatically reducing the temperature of the exhaust gas in the re-combustion furnace before introduction into the cooling tower.SELECTED DRAWING: None

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Inventors:

SEKI MASATOSHI
MISHIMA EIJI

Application Number:

JP2017142269A

Publication Date:

February 15, 2018

Filing Date:

July 04, 2017

Export Citation:

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Assignee:

E TOOL CORP
MATSUMOTO KOGYO CO LTD

International Classes:

C22B7/00; B09B3/00; C22B1/02; C22B11/02; F27D17/00; F27D19/00; F27D21/00

Domestic Patent References:

JP2012002386A	2012-01-05
JP2007271261A	2007-10-18
JP2000130732A	2000-05-12
JP2012017872A	2012-01-26
JP2005140382A	2005-06-02
JP2009025001A	2009-02-05
JPH08121735A	1996-05-17
JPH05272736A	1993-10-19
JPS54105328A	1979-08-18

Foreign References:

US5158445A

1992-10-27

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