Slag, dross, scalings and other waste from the manufacture of iron or steel

CPC v2.1 Code: 3931

About slag, dross, scalings and other waste from the manufacture of iron or steel

cpc code 3931 encompasses the slag, dross, scalings, and other waste materials generated during the production of iron and steel. This industry plays a crucial role in the broader metal manufacturing sector, as it manages the byproducts and residues from primary iron and steel making processes. The efficient handling and utilization of these waste materials are essential for the sustainability and environmental responsibility of the metal industry.

Production process

The main production techniques involved in this industry include the collection, sorting, and processing of slag, dross, and other waste materials from iron and steel manufacturing facilities. These waste products are typically generated during smelting, refining, and other high-temperature metal processing operations. The collected materials are then subjected to various physical and chemical treatments to extract valuable components, reduce volume, and prepare them for further utilization or safe disposal.

Production inputs

The primary inputs for this industry are the slag, dross, scalings, and other waste materials generated from the 3311 Manufacture of basic iron and steel and of ferro-alloys, 3312 Manufacture of tubes, pipes, hollow profiles and related fittings, of steel, and other iron and steel production processes. Additionally, the industry may require specialized equipment and machinery for the handling, processing, and transportation of these waste materials.

Production outputs

The main outputs of this industry include processed slag, dross, and other metal-containing residues that can be utilized as raw materials in various downstream industries. These materials may be used in the production of 2351 Manufacture of cement, 2399 Manufacture of other non-metallic mineral products n.e.c., or as aggregates in construction projects. The industry also generates waste streams that require proper disposal or further treatment to minimize environmental impact.

Family tree for slag, dross, scalings and other waste from the manufacture of iron or steel

    graph LR
    A["<a href='/classifications/cpc/v2-1/3'>3: Other transportable goods, except metal products, machinery and equipment</a>"]
A --> B["<a href='/classifications/cpc/v2-1/39'>39: Wastes or scraps</a>"]
B --> C["<a href='/classifications/cpc/v2-1/393'>393: Metal wastes or scraps</a>"]
C --> D["<a href='/classifications/cpc/v2-1/3931'>3931: Slag, dross, scalings and other waste from the manufacture of iron or steel</a>"]

    C --> E["<a href='/classifications/cpc/v2-1/3932'>3932: Ash and residue (except from the manufacture of iron or steel), containing metals or metallic compounds, except precious metals</a>"]
C --> F["<a href='/classifications/cpc/v2-1/3933'>3933: Waste and scrap of precious metal</a>"]
C --> G["<a href='/classifications/cpc/v2-1/3934'>3934: Ferrous waste and scrap</a>"]
C --> H["<a href='/classifications/cpc/v2-1/3935'>3935: Remelting scrap ingots of iron or steel</a>"]
C --> I["<a href='/classifications/cpc/v2-1/3936'>3936: Waste and scrap of other metals</a>"]
C --> J["<a href='/classifications/cpc/v2-1/3937'>3937: Vessels and other floating structures for breaking up</a>"]
C --> K["<a href='/classifications/cpc/v2-1/3938'>3938: Waste and scrap of primary cells, primary batteries and electric accumulators; spent primary cells, primary batteries and electric accumulators</a>"]

    D --> L["<a href='/classifications/cpc/v2-1/39310'>39310: Slag, dross, scalings and other waste from the manufacture of iron or steel</a>"]


    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level1
class B level2
class C level3
class D level4
class E level4
class F level4
class G level4
class H level4
class I level4
class J level4
class K level4
class L level5

  class D highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class D highlight