Tungsten disulphide

Manufacture

Documents

Manufacture of tungsten disulphide in catalysts and catalyst precursors (also known "as production of tungsten disulphide containing catalysts")

Manufacture

Registration/ Notification status for the use:

use registered according to REACH Article 10; total tonnage manufactured/imported >=10tonnes/year per registrant

Contributing activity / technique for the environment

Name of activity / technique:

Production of tungsten disulphide containing catalysts: ERC1

Environmental release category (ERC):

ERC1: Manufacture of the substance

Contributing activity / technique for workers

Contributing activity / technique for workers 1

Name of activity / technique:

Step 1: Raw material delivery and handling: PROC 8a/8b, PROC 2, PROC 4

Process category (PROC):

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC 4: Chemical production where opportunity for exposure arises

PROC 8a: Transfer of substance or mixture (charging and discharging) at non-dedicated facilities

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Contributing activity / technique for workers 2

Name of activity / technique:

Step 2: Catalyst production: PROC 1, PROC2, PROC 3, PROC 4, PROC 14, PROC 27b

Process category (PROC):

PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions

PROC 4: Chemical production where opportunity for exposure arises

PROC 14: Tabletting, compression, extrusion, pelletisation, granulation

PROC 27b: Production of metal powders (wet processes)

Contributing activity / technique for workers 3

Name of activity / technique:

Step 3: Catalyst packaging: PROC 8b

Process category (PROC):

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Contributing activity / technique for workers 4

Name of activity / technique:

Step 4: Maintenance and cleaning: PROC 2, PROC 28.

Process category (PROC):

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC28: Manual maintenance (cleaning and repair) of machinery

Contributing activity / technique for workers 5

Name of activity / technique:

Step 5: catalyst storage: PROC 2; PROC 3

Process category (PROC):

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions

Related assessment:

use assessed in a joint CSR

Manufacture of tungsten disulphide from tungsten materials

Manufacture

Contributing activity / technique for the environment

Name of activity / technique:

Manufacture of tungsten disulphide from tungsten materials: ERC 1

Environmental release category (ERC):

ERC1: Manufacture of the substance

Contributing activity / technique for workers

Contributing activity / technique for workers 1

Name of activity / technique:

Step 1: Transfer of substance (charging) at dedicated facilities. Tungsten containing raw material is received in sealed plastic drums or big bags and is being transferred to reactor by means of closed pneumatic transfer system. The duration of activity is around 1 hour and activity is conducted at room temperature.: PROC 8b

Process category (PROC):

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Contributing activity / technique for workers 2

Name of activity / technique:

Step 2: Chemical production in closed process without likelihood of exposure. Batch conversion in closed batch reactor: PROC 1

Process category (PROC):

PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions

Contributing activity / technique for workers 3

Name of activity / technique:

Step 3: Transfer of substance (discharging) at dedicated facilities. Discharge of product into standardized sealed plastic drums, duration is around half hour: PROC 8b

Process category (PROC):

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Related assessment:

use assessed in a joint CSR

Manufacture of tungsten disulphide from tungsten trioxide

Manufacture

Contributing activity / technique for the environment

Name of activity / technique:

Manufacture of tungsten disulphide from tungsten trioxide: ERC1

Environmental release category (ERC):

ERC1: Manufacture of the substance

Contributing activity / technique for workers

Contributing activity / technique for workers 1

Name of activity / technique:

Step 1: Transfer to the mixer: PROC 8b

Process category (PROC):

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Contributing activity / technique for workers 2

Name of activity / technique:

Step 2: Mixing Operation: PROC 5

Process category (PROC):

PROC 5: Mixing or blending in batch processes

Contributing activity / technique for workers 3

Name of activity / technique:

Step 3: Furnace charging: PROC 26

Process category (PROC):

PROC 26: Handling of solid inorganic substances at ambient temperature

Contributing activity / technique for workers 4

Name of activity / technique:

Step 4: Heating process PROC 27a

Process category (PROC):

PROC 27a: Production of metal powders (hot processes)

Contributing activity / technique for workers 5

Name of activity / technique:

Step 5: Transfer of tungsten mixture to containers: PROC 8a

Process category (PROC):

PROC 8a: Transfer of substance or mixture (charging and discharging) at non-dedicated facilities

Contributing activity / technique for workers 6

Name of activity / technique:

Step 6: Maintenance: PROC 8b

Process category (PROC):

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Related assessment:

use assessed in a joint CSR

Manufacture of tungsten disulphide within catalyst or catalyst precursor

Manufacture

Contributing activity / technique for the environment

Name of activity / technique:

Manufacture of tungsten disulphide within catalyst or catalyst precursor

Environmental release category (ERC):

ERC1: Manufacture of the substance

Contributing activity / technique for workers

Contributing activity / technique for workers 1

Name of activity / technique:

Step 1: Transfer to the Mixer - Tungsten trioxide containing catalyst or catalyst precursor is received in sealed 200L metal drums or 1m³ flexible IBC and filled into a hopper by fork lift truck. Oxidic catalyst is conveyed into a mixer

Process category (PROC):

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Contributing activity / technique for workers 2

Name of activity / technique:

Step 2: Mixing + calcination + screening - Continuous blending of WO3 catalyst or catalyst precursor sulfur compounds followed by calcination to produce WS2 containing catalyst and screening prior to packaging

Process category (PROC):

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

Contributing activity / technique for workers 3

Name of activity / technique:

Step 3: Packaging of tungsten disulphide containing catalyst into containers - Transfer of tungsten disulphide containing catalyst to 200L metal drums or 2m³ metal IBC

Process category (PROC):

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Related assessment:

use assessed in a joint CSR

Manufacture of tungsten disulphide in catalysts and catalyst precursors (also known "as production of tungsten disulphide containing catalysts")

Manufacture

Contributing activity / technique for the environment

Name of activity / technique:

Production of tungsten disulphide containing catalysts: ERC1

Environmental release category (ERC):

ERC1: Manufacture of the substance

Contributing activity / technique for workers

Contributing activity / technique for workers 1

Name of activity / technique:

Step 1: Raw material delivery and handling: PROC 8a/8b, PROC 2, PROC 4

Process category (PROC):

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC 4: Chemical production where opportunity for exposure arises

PROC 8a: Transfer of substance or mixture (charging and discharging) at non-dedicated facilities

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Contributing activity / technique for workers 2

Name of activity / technique:

Step 2: Catalyst production: PROC 1, PROC2, PROC 3, PROC 4, PROC 14, PROC 27b

Process category (PROC):

PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions

PROC 4: Chemical production where opportunity for exposure arises

PROC 14: Tabletting, compression, extrusion, pelletisation, granulation

PROC 27b: Production of metal powders (wet processes)

Contributing activity / technique for workers 3

Name of activity / technique:

Step 3: Catalyst packaging: PROC 8b

Process category (PROC):

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Contributing activity / technique for workers 4

Name of activity / technique:

Step 4: Maintenance and cleaning: PROC 2, PROC 28.

Process category (PROC):

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC28: Manual maintenance (cleaning and repair) of machinery

Contributing activity / technique for workers 5

Name of activity / technique:

Step 5: catalyst storage: PROC 2; PROC 3

Process category (PROC):

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions

Related assessment:

use assessed in a joint CSR

Manufacture of tungsten disulphide as intermediate under SCC

Manufacture

Registration/ Notification status for the use:

use registered according to REACH Article 17/18

Contributing activity / technique for workers

Process category (PROC):

PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)

PROC 15: Use as laboratory reagent

Manufacture of tungsten disulphide in catalysts and catalyst precursors (also known "as production of tungsten disulphide containing catalysts")

Manufacture

Contributing activity / technique for the environment

Name of activity / technique:

Production of tungsten disulphide containing catalysts: ERC1

Environmental release category (ERC):

ERC1: Manufacture of the substance

Contributing activity / technique for workers

Contributing activity / technique for workers 1

Name of activity / technique:

Step 1: Raw material delivery and handling: PROC 8a/8b, PROC 2, PROC 4

Process category (PROC):

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC 4: Chemical production where opportunity for exposure arises

PROC 8a: Transfer of substance or mixture (charging and discharging) at non-dedicated facilities

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Contributing activity / technique for workers 2

Name of activity / technique:

Step 2: Catalyst production: PROC 1, PROC2, PROC 3, PROC 4, PROC 14, PROC 27b

Process category (PROC):

PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions

PROC 4: Chemical production where opportunity for exposure arises

PROC 14: Tabletting, compression, extrusion, pelletisation, granulation

PROC 27b: Production of metal powders (wet processes)

Contributing activity / technique for workers 3

Name of activity / technique:

Step 3: Catalyst packaging: PROC 8b

Process category (PROC):

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Contributing activity / technique for workers 4

Name of activity / technique:

Step 4: Maintenance and cleaning: PROC 2, PROC28

Process category (PROC):

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC28: Manual maintenance (cleaning and repair) of machinery

Contributing activity / technique for workers 5

Name of activity / technique:

Step 5: catalyst storage: PROC 2; PROC 3

Process category (PROC):

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions

Related assessment:

use assessed in a joint CSR

Manufacture of tungsten disulphide from tungsten metal

Manufacture

Contributing activity / technique for the environment

Name of activity / technique:

Manufacture of tungsten disulphide from tungsten metal: ERC 1

Environmental release category (ERC):

ERC1: Manufacture of the substance

Contributing activity / technique for workers

Contributing activity / technique for workers 1

Name of activity / technique:

Step 1: Transfer to the mixer: PROC 8b

Process category (PROC):

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Contributing activity / technique for workers 2

Name of activity / technique:

Step 2: Mixing Operation: PROC 5

Process category (PROC):

PROC 5: Mixing or blending in batch processes

Contributing activity / technique for workers 3

Name of activity / technique:

Step 3: Furnace charging: PROC 26

Process category (PROC):

PROC 26: Handling of solid inorganic substances at ambient temperature

Contributing activity / technique for workers 4

Name of activity / technique:

Step 4: Heating process: PROC 27a

Process category (PROC):

PROC 27a: Production of metal powders (hot processes)

Contributing activity / technique for workers 5

Name of activity / technique:

Step 5: Transfer of tungsten mixture to containers: PROC 8a

Process category (PROC):

PROC 8a: Transfer of substance or mixture (charging and discharging) at non-dedicated facilities

Contributing activity / technique for workers 6

Name of activity / technique:

Step 6: Maintenance: PROC 8b

Process category (PROC):

PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities

Related assessment:

use assessed in a joint CSR