CA2008242A1 - Microwave activation of carbon - Google Patents

Microwave activation of carbon

Info

Publication number
CA2008242A1
CA2008242A1 CA 2008242 CA2008242A CA2008242A1 CA 2008242 A1 CA2008242 A1 CA 2008242A1 CA 2008242 CA2008242 CA 2008242 CA 2008242 A CA2008242 A CA 2008242A CA 2008242 A1 CA2008242 A1 CA 2008242A1
Authority
CA
Canada
Prior art keywords
carbon
spent
mhz
range
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2008242
Other languages
French (fr)
Other versions
CA2008242C (en
Inventor
Kazi E. Haque
Peter D. Kondos
Raymond J.C. Macdonald
Daniel E. Laforest
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canada Minister of Natural Resources
Original Assignee
Kazi E. Haque
Peter D. Kondos
Raymond J.C. Macdonald
Daniel E. Laforest
Her Majesty In Right Of Canada As Represented By The Minister Of Natural Resources
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kazi E. Haque, Peter D. Kondos, Raymond J.C. Macdonald, Daniel E. Laforest, Her Majesty In Right Of Canada As Represented By The Minister Of Natural Resources filed Critical Kazi E. Haque
Priority to CA 2008242 priority Critical patent/CA2008242C/en
Publication of CA2008242A1 publication Critical patent/CA2008242A1/en
Application granted granted Critical
Publication of CA2008242C publication Critical patent/CA2008242C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

A method is disclosed for the regeneration of spent carbon, which comprises the steps of acid washing the spent carbon, heating the washed carbon with microwaves 915 MHz or 2450 MHz to a temperature in the range of about 650° to 850°C in a nitrogen atmosphere, cooling the carbon to a temperature in the range of about 150° to 200°C, and thereafter quenching the hot carbon in air or water. The spent carbon to be regenerated may be that originating from a CIP (carbon-in-pulp) process for gold recovery or any process for the removal of environmentally toxic materials from solutions or gases.
CA 2008242 1990-01-22 1990-01-22 Microwave activation of carbon Expired - Fee Related CA2008242C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2008242 CA2008242C (en) 1990-01-22 1990-01-22 Microwave activation of carbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2008242 CA2008242C (en) 1990-01-22 1990-01-22 Microwave activation of carbon

Publications (2)

Publication Number Publication Date
CA2008242A1 true CA2008242A1 (en) 1991-07-22
CA2008242C CA2008242C (en) 2000-04-04

Family

ID=4144090

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2008242 Expired - Fee Related CA2008242C (en) 1990-01-22 1990-01-22 Microwave activation of carbon

Country Status (1)

Country Link
CA (1) CA2008242C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5869816A (en) * 1995-09-29 1999-02-09 Ontario Hydro Apparatus and method for continuous processing of granular materials using microwaves
ES2246655A1 (en) * 2003-09-12 2006-02-16 Consejo Sup. De Invest. Cientificas Production of carbon molecular sieves comprises inert atmosphere microwaving of carbon fibres modifying the porosity of the carbon
CN100334237C (en) * 2003-08-30 2007-08-29 大连理工大学 Reproducing method for carrier gold activated carbon
US7744824B2 (en) 2005-12-23 2010-06-29 Hamilton Sundstrand Corporation On-board fuel desulfurization unit
US8563467B2 (en) 2010-06-18 2013-10-22 The Governors Of The University Of Alberta Method for preparation of activated carbon
US8921263B2 (en) 2012-08-21 2014-12-30 Corning Incorporated Microwave energy-assisted, chemical activation of carbon

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5869816A (en) * 1995-09-29 1999-02-09 Ontario Hydro Apparatus and method for continuous processing of granular materials using microwaves
CN100334237C (en) * 2003-08-30 2007-08-29 大连理工大学 Reproducing method for carrier gold activated carbon
ES2246655A1 (en) * 2003-09-12 2006-02-16 Consejo Sup. De Invest. Cientificas Production of carbon molecular sieves comprises inert atmosphere microwaving of carbon fibres modifying the porosity of the carbon
US7744824B2 (en) 2005-12-23 2010-06-29 Hamilton Sundstrand Corporation On-board fuel desulfurization unit
US8466079B2 (en) 2005-12-23 2013-06-18 Hamilton Sundstrand Corporation On-board fuel desulfurization unit
US8563467B2 (en) 2010-06-18 2013-10-22 The Governors Of The University Of Alberta Method for preparation of activated carbon
US8921263B2 (en) 2012-08-21 2014-12-30 Corning Incorporated Microwave energy-assisted, chemical activation of carbon

Also Published As

Publication number Publication date
CA2008242C (en) 2000-04-04

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