Carbochemicals

Overview

In addition to the main product, the steelmaking process generates the so called co-products. For every ton of steel produced, roughly 500 to 600 kg of co-products are generated. Initially they were called "waste products," being stored in landfills or discarded in the environment.

With the creation of the Special Sales Area, CSN opted to leverage business in the domestic market and the foreign market, thus ensuring the correct disposal of these co-products.

This business unit is divided into the following segments:

  1. Carbochemicals
  2. Co-products
  3. Recyclables
  4. Lime

The applications of co-products are plenty: fine chemicals, agribusiness, aluminum industry, rubber, polymers, leather, metallurgy and as raw materials in other activities.

The business unit has great integration and synergy with the area of Environment of CSN, ensuring that all products are used in an environmentally-friendly way.

Generation Flow

Tar


Product Description

Product derived from the gas obtained by distillation of coal during the coke production process; used as raw material in the manufacture of pig iron in blast furnaces.

Main applications:Raw material for pitch distillation, anthracene oil, naphthalene and disinfectant oil. Also used as fuel.

Specifications

ANALYSIS UNIT METHOD VALUES
Water

%

CSN - PP82678 Max. 10
IQ

%

CSN-PP82673 Max. 8
Additional Information

Transporter Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
AATIPP - Environmental Authorization for Interstate Transportation of Dangerous Goods issued by IBAMA.
RNTRC - National Registration of Cargo Road Transporters issued by ANTT.
EPAE - Immediate Emergency Assistance Company
Environmental insurance

Customer Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
CRQ - Registration required at the Regional Chemistry Council.

Transporter Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
AATIPP - Environmental Authorization for Interstate Transportation of Dangerous Goods issued by IBAMA.
RNTRC - National Registration of Cargo Road Transporters issued by ANTT.
EPAE - Immediate Emergency Assistance Company
Environmental insurance

Pitch


Product Description

Product derived from tar distillate, composed of hydrocarbons rich in aromatics obtained on the base of column at temperatures of about 350 º C.

Main applications: Raw material for the manufacture of electrodes for electric furnaces and anode paste for the production of aluminum and ferroalloys. Also used as insulation and pipe coating to waterproof concrete slabs.

Specifications:

ANALYSIS UNIT METHOD VALUES
PA ºC ABNT NBR 13923 107 to 113
IQ % ABNT NBR 13924 9 to 17
IT % ABNT NBR 13925 25 to 38
Ashes % ABNT NBR 13926 0.28 Max
Fixed Carbon % ABNT NBR 13927 55 Min
Additional Information

Transport Information
UN number: 1999 - liquid
Hazard Class: 3
Number of risk: 30
Vehicle type: TANKER TRUCK EQUIPPED WITH HEATING TORCH

Customer Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
CRQ - Registration required at the Regional Chemistry Council

Transporter Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
AATIPP - Environmental Authorization for Interstate Transportation of Dangerous Goods issued by IBAMA.
RNTRC - National Registration of Cargo Road Transporters issued by ANTT.
EPAE - Immediate Emergency Assistance Company
Environmental insurance

Source: GVS Catalog

Anthracene oil - Antrafen


Product Description:

Product derived from tar distillate, composed of hydrocarbons rich in aromatics obtained in the middle of column at temperatures of about 115 º C.

Main applications: Raw material for the carbon black industry for rubber production and also used as fuel.

Specifications:

ANALYSIS UNIT METHOD SAMPLING VALUES
Water Content % ASTM D95 Tank 3.0 Max
Specific gravity - CSN-PP802685 Tank 1.025 Min
Tar Acids % CSN-PP802686 Tank 25.0 Min
Benzene % Chromatography Tank 0.3 Max

Source: GVS Catalog

Additional Information

Transport Information
UN number: 1136
Hazard Class: 3
Number of risk: 30
Vehicle type: TANKER TRUCK WITH OR WITHOUT HEATING TORCH

Customer Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
CRQ - Registration required at the Regional Chemistry Council

Transporter Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
AATIPP - Environmental Authorization for Interstate Transportation of Dangerous Goods issued by IBAMA.
RNTRC - National Registration of Cargo Road Transporters issued by ANTT.
EPAE - Immediate Emergency Assistance Company
Environmental insurance

Naphthalene


Product Description:

Product derived from tar distillate, composed of hydrocarbons rich in aromatics at temperatures of approximately 110 º C.

Main applications: Raw material for the manufacture of phthalic anhydride, naphthalene, insulators, and tanning for leather and concrete industries (sulfonated naphthalene).

Specifications:

ANALYSIS UNIT METHOD SAMPLING VALUES
Solidification point ºC ASTM D1493 Tank 77.5 Min
Purity % JIS K 2436 Tank 95.0 Min
Water Content % ASTM D95 Tank 0.5 Max
Additional Information

Transport Information
UN number: 1134 - solid; 2304 - cast
Hazard Class: 4.1
Number of risk: 40 - solid; 44 - cast
Vehicle type: TANKER TRUCK WITH THERMAL INSULATION AND
COIL FOR HEATING STAINLESS STEEL

Customer Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
CRQ - Registration required at the Regional Chemistry Council

Transporter Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
AATIPP - Environmental Authorization for Interstate Transportation of Dangerous Goods issued by IBAMA.
RNTRC - National Registration of Cargo Road Transporters issued by ANTT.
EPAE - Immediate Emergency Assistance Company
Environmental insurance

Anhydrous Ammonia


Product Description:

Anhydrous ammonia of high purity (99.95%) is obtained by the treatment of coke oven gas in an ammonia phosphate solution.

Main applications: Raw material for the manufacture of ammonium hydroxide, urea (fertilizer) and the production of soda ash (sodium carbonate); also used in the food, catalysts and cooling industry.

Additional Information

Transport Information
UN number: 1005
Hazard Class: 2.3
Number of risk: 268
Vehicle type: PRESSURIZED TANKER TRUCK

Customer Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
CLFPF - Operating License Certificate, issued by the Federal Police.
CRQ - Registration required at the Regional Chemistry Council

Transporter Environmental Documentation:
LO- Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
AATIPP - Environmental Authorization for Interstate Transportation of Dangerous Goods issued by IBAMA.
RNTRC - National Registration of Cargo Road Transporters issued by ANTT.
EPAE - Immediate Emergency Assistance Company
Environmental insurance

Specifications:

Analysis Unit Method Sampling Values Values
Water Content % CSN- PP 502384 Tank 0.05 Max.
Purity % CSN- PP 802640 Tank 99.95 Min

BTX (Benzene, Toluene and Xylene)


Product Description:

Mild aromatic oils derived from coke oven gas are processed generating a mixture composed primarily of benzene, toluene and xylene.

Main applications: Raw material for the production of solvents (benzene, toluene and xylene), resins, plasticides, polymers and as chemical intermediate for industries in general.

Specifications:

UNIT METHOD SAMPLING VALUES
Benzene % Chromatography Tank 62 min.
Toluene % Chromatography Tank 12 min.
Xylene % Chromatography Tank 3 min.
Heavy % Chromatography Tank 18 Max.
Additional Information

Transport Information
UN number: 1993
Hazard Class: 3
Number of risk: 33
Vehicle type: STAINLESS STEEL TANKER TRUCK

Customer Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
CLFPF - Operating License Certificate, issued by the Federal Police.
CRQ - Registration required at the Regional Chemistry Council

Transporter Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
AATIPP - Environmental Authorization for Interstate Transportation of Dangerous Goods issued by IBAMA.
RNTRC - National Registration of Cargo Road Transporters issued by ANTT.
EPAE - Immediate Emergency Assistance Company
Environmental insurance
CLFPF - Operating License Certificate, issued by the Federal Police.

Sulfur


Product Description:

Sulfur is obtained from gas cleaning processes.

Main applications: Used in the manufacture of ferroalloys and soil correction.

Specifications:

ANALYSIS UNIT METHOD SAMPLING VALUES
Purity % CSN-PP802657 Lot 98 min.
Additional Information

Transport Information
UN number: 1350
Hazard Class: 4.1
Number of risk: 40
Vehicle type: SEALED AND CANVASSED DUMP TRUCK

Customer Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
CRQ - Registration required at the Regional Chemistry Council

Transporter Environmental Documentation:
LO - Operating License issued by the environmental control agency.
CTF - Federal Technical Registration at IBAMA.
AATIPP - Environmental Authorization for Interstate Transportation of Dangerous Goods issued by IBAMA.
RNTRC - National Registration of Cargo Road Transporters issued by ANTT.
EPAE - Immediate Emergency Assistance Company
Environmental insurance

Last Update on August 21, 2017

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