Improvements in copper/tin/lead production

A black copper, copper-rich technology, applied in the field of copper production, improved co-production of copper and solder flow from primary and secondary raw materials, can solve the problem of reducing the acceptability of nickel-containing raw materials

Pending Publication Date: 2022-07-22
METALLO BELGIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of US 3,682,623, and in more general operations of which this process may be a part, this reduces the acceptability of nickel-containing raw materials

Method used

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  • Improvements in copper/tin/lead production
  • Improvements in copper/tin/lead production
  • Improvements in copper/tin/lead production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0300] In an embodiment, the method according to the present invention further comprises the step of cooling the first rough solder metal composition and / or the second rough solder metal composition and / or the pre-refined solder metal composition to a temperature of at most 825°C, to produce a bath containing a first upper layer of dross that floats under the force of gravity above the first liquid melt-conditioned solder phase. Applicants have discovered that this further downstream processing step can remove significant amounts of copper and other unwanted metals from the rough solder. Further details of this step can be found in WO 2018 / 060202 A1 or similar documents. Applicants have further discovered that this cooling step, in combination with some other downstream processing steps on the lead / tin stream, can at least partially replace the pretreatment with silicon metal mentioned elsewhere herein. This is advantageous because metallic silicon is a relatively rare proces...

Embodiment

[0323] The following examples illustrate preferred embodiments of the present invention. This example is in figure 1 is further shown, where figure 1 A flow chart showing the core part of the method according to the invention is shown. In the process, starting with black copper composition 1, a refined anode grade copper product 9, a high copper metal composition by-product 22, two rough solder metal composition products 18 and 26 and three are recovered from various feedstocks Kinds of waste residues 12, 20 and 28 and other parts.

[0324] exist figure 1 , the numerals indicate the following claimed features:

[0325] 1. Black copper composition feed to step b) (100)

[0326] 2. Fresh feed to step b) (100)

[0327] 3. The first copper refining slag

[0328] 4. The first copper-rich metal phase

[0329] 5. Fresh feed to step h) (200)

[0330] 6. Second copper refining slag

[0331] 7. The second copper-rich metal phase

[0332] 8. The third copper refining slag

[...

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Abstract

The application relates to improvements in copper / tin / lead production. A method for manufacturing a first lean copper metal composition is disclosed, comprising: providing a black copper composition, partially oxidizing the black copper composition, thereby forming a first copper-rich metal phase and a first copper refining slag; partially oxidizing the first copper-rich metal phase to form a second copper-rich metal phase and second copper refining slag; partially oxidizing the second copper-rich metal phase to form a third copper-rich metal phase and third copper refining slag; adding at least part of the second copper refining slag or at least part of the third copper refining slag to a metal composition containing both copper and at least one solder metal selected from tin and lead, thereby forming a first molten bath; and partially oxidizing the first melt bath, thereby forming the first dilute copper metal composition and a first solder refining slag.

Description

[0001] This application is a divisional application of the PCT international application PCT / EP2018 / 084355 entering the Chinese national phase application 201880080156.1 with an application date of December 11, 2018. technical field [0002] The present invention relates to the production of non-ferrous metals by pyrometallurgy, in particular the production of copper (Cu). More specifically, the present invention relates to an improved method for co-producing copper and solder streams from primary and secondary feedstocks as primary products for further upgrading to commercially desirable purity metal products. Solder flows generally belong to the family of metal compositions or alloys that contain significant amounts of tin (Sn), but usually not necessarily also lead (Pb). Background technique [0003] Non-ferrous metals can be produced from virgin ore (also referred to as primary sources) or recyclable materials (also referred to as secondary feedstocks) or combinations th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/04C22B15/00C22B13/02C22B25/02C22B25/06C22C9/02C22C9/08
CPCC22B7/04C22B7/001C22B15/0028C22B15/0054C22B13/025C22B25/02C22B25/06C22C9/02C22C9/08C22B5/02C22B15/0056Y02P10/20
Inventor 伯特·克莱蒂让·迪尔克·A·戈里斯伊夫·德维斯切查尔斯·格南沃尔特·冈斯尼可·莫伦史蒂文·斯迈特斯安迪·布莱尤格尔曼斯
Owner METALLO BELGIUM
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