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United States
Ray Mine

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 Location:
105 km N from Tucson, Arizona, United States

  Address:
27809 N. Mineral Creek Road
P.O. Box 8, Hayden, AZ 85135-1001
Kearny
Arizona, United States
85137
Phone  ...  Subscription required
Fax520-356-3802
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
  • Silver
Mining Method
  • Truck & Shovel / Loader
Processing
  • Sulfuric acid (reagent)
  • Flotation
  • ROM/dump leach
  • Solvent Extraction & Electrowinning
Mine Life2044


Owners & OPERATOR

Source: p. 160, 38
CompanyInterestOwnership
ASARCO LLC. (operator) 100 % Direct
Grupo Mexico S.A. de C.V. 100 % Indirect
The Mining Division of Grupo Mexico, S.A. de C.V. (GMéxico) is controlled by Americas Mining Corporation (AMC) which operates the United States subsidiary - Asarco LLC (Asarco).

Asarco LLC includes the Mission, Ray and Silver Bell Arizona mines.

Deposit Type

  • Porphyry


Summary:

The Ray Mine is located in eastern Pinal County, Arizona, about 80 miles southeast of the city of Phoenix. Ray consists of a large classical porphyry copper deposit.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Due to the site’s geography, the vast majority of the mine haulage operation involves lifting material out of the pit to the dumps or crushers (vertical hauls up to 1,800 ft.). The elevation change adds an additional complexity that must be accounted for to support communications, due to its depth.


Crushing and Grinding


Processing

  • Sulfuric acid (reagent)
  • Flotation
  • ROM/dump leach
  • Solvent Extraction & Electrowinning

Source: Subscription required

Summary:

The Ray Operations consists of a 250,000 ton/day open pit mine with a 30,000 ton/day concentrator, a 103 million pound/year solvent extraction-electrowinning operation, and associated maintenance, warehouse and administrative facilities. Cathode copper produced in the SX-EW operation is shipped to outside customers and the Asarco Amarillo Copper Refinery.

A local railroad, Copper Basin Railway, transports ore from the mine to the Hayden concentrator, concentrate from the Ray concentrator to the smelter, and sulphuric acid from the smelter to the leaching facilities.

Recoveries & Grades:

CommodityParameter20192018201720162015201420132012
Copper Head Grade, % 0.240.240.30.330.30.330.320.32
Copper Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Production:

CommodityProductUnits201920182017201620152014
Copper Cathode kt  ......  Subscription required  ......  Subscription required15212831
Copper Metal in concentrate kt  ......  Subscription required  ......  Subscription required38464762
Copper Concentrate kt  ......  Subscription required  ......  Subscription required147172179228
Subscription required - Subscription is required.

Operational Metrics:

Metrics201920182017201620152014
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required29,673 kt51,316 kt80,085 kt
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required21,720 kt30,482 kt40,937 kt
Daily milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at December 31, 2019:

CategoryOreTypeTonnage CommodityGrade
Proven & Probable Heap leach 83,570 kt Copper 0.399 %
Proven & Probable Mill / Sulphide 376,942 kt Copper 0.519 %


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 11, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 11, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 11, 2020
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015
Subscription required 2014

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2018
Annual Information Form 2017
Annual Information Form 2016
Annual Report 2016
Annual Information Form 2015
Annual Report 2015
Other 2015
Annual Information Form 2014
Annual Report 2014
Fact Sheet 2014
Other 2012
Subscription required - Subscription is required.

Aerial view:

Subscription required - Subscription is required.

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