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Refining and recycling

Introduction

There are a number of sources of raw materials in Eve which go to feed the manufacturing of most of the player owned items in game. These raw materials are things like asteroid ores collected by miners, alloys and compounds taken from rogue drones, and unwanted goods to be recycled. Before these materials can be used in manufacturing they must processed in a refinery to turn them into minerals.

Refineries

To process these materials a processing plant is needed. Many space stations and outposts have such plants, and mobile refineries are available to be installed on a POS (Player Owned Structure). These plants vary in how efficient they are, with the best of them having a base efficiency of 50%. These efficiencies are increased by the skill of the operator... a skilled refiner can recover 100% of the minerals using a refinery with a base efficiency of 50%.

Refine portion size

Refineries work by refining portions of ore, and the size of the portion depends on the type of ore being processed, see the ore table for portion sizes and mineral yields. Ammunition and charges must also be processed in portions, though other items such as alloys, compounds, modules and ships may be recycled individually. Any quantity of material may be submitted for processing in a single operation, any which cannot be fitted into a portion is simply left unprocessed.

Refinery taxes

When using a refinery, the refinery owner will normally want to charge you for it's use. This charge comes in the form of a tax which takes a percentage of the refined minerals that you recover. The tax rate for player owned refineries is set by the refinery owner. In the case of NPC station refineries, the tax rate depends on your standing with the station owner. The tax starts at 10%, and drops as you gain standing with the NPC corp which owns the station. Once you have a standing of 6.67 or greater, your tax rate will drop to zero. Standings with NPC corporations are increased by running missions for the corporation's agents.

Refining / reprocessing skills

General refinery skills

Ore specific refining skills

These come groups with different pre-requisites. They all give an ore specific specialization in processing and refining. This allows a skilled refiner to utilize substandard refining facilities at considerably greater efficiency for that ore. 5% reduction in refining waste per skill level. The skill pre-requisites are:

So a refiner needs to train Industry I, Refining to at least level IV, preferably level V. Then Science III or better, Metallurgy, and some ore specific skills. The way these skills combine is shown in this table:

Refining Refinery
efficiency
Yield from a 50% efficient refinery   Yield from a 30% efficient refinery
0 0 87.5%
Ore specific refining skill
  67.5%
Ore specific refining skill
1 0 88.25%   68.25%
2 0 89%   69%
3 0 89.75% 1 2 3 4 5   69.75% 1 2 3 4 5
4 0 90.5% 92.53% 94.55% 96.58% 98.6% 100%   70.5% 72.53% 74.55% 76.57% 78.6% 80.63%
5 0 91.25% 93.31% 95.38% 97.44% 99.5% 100%   71.25% 73.31% 75.38% 77.44% 79.5% 81.56%
5 1 92.9% 95.05% 97.19% 99.33% 100% 100%   72.9% 75.05% 77.19% 79.33% 81.48% 83.63%
5 2 94.55% 96.78% 99.01% 100% 100% 100%   74.55% 76.78% 79.01% 81.23% 83.46% 85.69%
5 3 96.2% 98.51% 100% 100% 100% 100%   76.2% 78.51% 80.82% 83.13% 85.44% 87.75%
5 4 97.85% 100% 100% 100% 100% 100%   77.85% 80.24% 82.63% 85.03% 87.42% 89.81%
5 5 99.5% 100% 100% 100% 100% 100%   79.5% 81.97% 84.45% 86.92% 89.4% 91.88%

If you find any errors, omissions or things which are unclear, please let me know about them in game, thanks -- Rogan Samish.