4. B - Operations, Transporting
  5. 01
  6. D

David Krofchak

B - Operations – Transporting – 01 – D

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A method of making cement from base metal smelter slag

C - Chemistry – Metallurgy – 04 – B
Patent

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Apparatus for washing air or other gas

B - Operations – Transporting – 01 – D
Patent

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Assaying and/or recovering precious metals

C - Chemistry – Metallurgy – 22 – B
Patent

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Manufacture of sodium tripolyphosphate

C - Chemistry – Metallurgy – 01 – B
Patent

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Method of making cement from tailings or rock fines...

C - Chemistry – Metallurgy – 04 – B
Patent

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Method of making cement from tailings or rock fines...

C - Chemistry – Metallurgy – 04 – B
Patent

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Method of making concrete from base metal smelter slag

C - Chemistry – Metallurgy – 04 – B
Patent

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Method of treating steel mill waste

B - Operations – Transporting – 09 – B
Patent

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Process for the treatment of incinerated sewage sludge ash

C - Chemistry – Metallurgy – 22 – B
Patent

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Solidification of tailings from oil sands

C - Chemistry – Metallurgy – 02 – F
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Profile ID: LFCA-PAI-P-54311

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