Detailed/More Info:
Colburn Mill [aka Colburn-Ajax, aka Ajax Mill]
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Info Last Updated 28.03.2019 (News entries: 9)

Mining and Engineering World [former Mining World] 07.10.1911 Volume: Issue: 15
Page: 707 [General Mining News]: Colburn Mill at the Ajax Mine

  The Colburn mill is finished and is considered one of the finest in the district. It will handle, under treatment by the Clancy chemical process, about 200 tons a day, using three large tube mills for line grinding. It is designed to treat the rebellious sulphides and tellurides with-out roasting and without concentration.

Mining and Engineering World [former Mining World] 14.10.1911 Volume: Issue: 16
Page: 763 [General Mining News]: Colburn Mill [aka Ajax Mill]

  A. M. Warwick, chief engineer for the new Colburn mill, is on the ground preparing for the initial run. The new process put into the Cresson mill, when examined by metallurgists, was found to require some changes which will delay the opening of that enterprise for a short time. Mechanical engineers are drafting plans for the Kelso mill to be erected on Dante ground.

Mining and Engineering World [former Mining World] 21.10.1911 Volume: Issue: 17
Page: 813 [General Mining News]: Colburn Mill

  The chief engineer of the Colburn mill says it will be fully 6 weeks before the plant can be started up, owing to the non-arrival of some electrical machinery necessary to the operation of the Clancy process.

Mining and Engineering World [former Mining World] 28.10.1911 Volume: Issue: 18
Page: 871 [General Mining News]: Colburn Mill [aka Ajax Mill]

  The Colburn mill is reported by the superintendent to be practically finished. The long delayed generator for use in the electrolysis scheme for the regeneration of chemicals under the Clancy process, has arrived and been placed. The machinery will soon be adjusted and the mill started on its trial runs.

Mining and Engineering World [former Mining World] 11.11.1911 Volume: Issue: 20
Page: 976 [General Mining News]: Colburn Mill [aka Ajax Mill]

  The new Colburn mill is erecting and trying out its machinery on waste rock preparatory to entering upon regular operation. It will probably be in good order in all departments within a week.

Mining and Engineering World [former Mining World] 02.12.1911 Volume: Issue: 23
Page: 1134 [General Mining News]: Colburn Mill [aka Ajax Mill]

  Tests made of the Clancy process at the new Colburn mill, using waste rock from the Ajax shaft worth about $4 per ton, are bringing good results.

Mining and Engineering World [former Mining World] 16.12.1911 Volume: Issue: 25
Page: 1236 [General Mining News]: Colburn Mill [aka Ajax Mill]

  The Colburn mill after a week or two of constant trial with the Clancy process of electro-cyanidation, is declared to be a success. It has been reducing about 150 tons daily of ordinary material, averaging around $4, under the supervision of A. W. Warwick.

Mining and Engineering World [former Mining World] 30.12.1911 Volume: Issue: 27
Page: 1340 [General Mining News]: Colburn Mill [aka Ajax Mill]

  The Ajax is shipping 50 cars a month. As to the status of the new Colburn mill, it will be a month yet before any official reports of the Clancy electro-chemical process will be made.

Mining and Scientific Press 02.03.1918 Volume: Issue: 9
Page: 312 [The Mining Summary]: Colburn Mill

  Colburn mill is to resume treatment, employing a flotation method said to be patented by E. A. Colburn.


Data was last exported/updated 28.03.2019 [21:34:00]