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Manufacture, use & exposure

Uses at industrial sites

Documentsopen allclose all

Uses at industrial sites

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Process category (PROC):
PROC28: Manual maintenance (cleaning and repair) of machinery
Process category (PROC):
PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 14: Tabletting, compression, extrusion, pelletisation, granulation
Product category used:
PC 20: Products such as ph-regulators, flocculants, precipitants, neutralisation agents
Sector of end use:
SU 8: Manufacture of bulk, large scale chemicals (including petroleum products)
SU 9: Manufacture of fine chemicals
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no

Uses at industrial sites

Contributing activity / technique for the environmentopen allclose all
Environmental release category (ERC):
ERC1: Manufacture of the substance
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Process category (PROC):
PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 4: Chemical production where opportunity for exposure arises
Process category (PROC):
PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
Process category (PROC):
PROC 14: Tabletting, compression, extrusion, pelletisation, granulation
Product category used:
PC 19: Intermediate
Sector of end use:
SU 8: Manufacture of bulk, large scale chemicals (including petroleum products)
SU 9: Manufacture of fine chemicals
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no

Uses at industrial sites

Contributing activity / technique for the environment
Name of activity / technique:
Use of ammonium paratungstate to manufacture tungsten blue oxide and tungsten trioxide powders
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Name of activity / technique:
The following activities were individually coded as PROC 3:
Step 1: Transfer to calcinations
Step 2: Loading the rotary kiln furnace
Step 5: Homogenisation
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
The following activities were individually coded as PROC 8b:
Step 4: Unloading the furnace and transfer to homogenisation operation
Step 6: Unloading homogenisation unit and fill into metal containers
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Name of activity / technique:
Step 3: Calcination
Process category (PROC):
PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
Product category used:
PC 19: Intermediate
Sector of end use:
SU 14: Manufacture of basic metals, including alloys
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no
Related assessment:
use assessed in a joint CSR

Uses at industrial sites

Contributing activity / technique for the environment
Name of activity / technique:
Use of ammonium paratungstate to produce catalysts
Environmental release category (ERC):
ERC4: Use of non-reactive processing aid at industrial site (no inclusion into or onto article)
Contributing activity / technique for workers
Name of activity / technique:
Use of ammonium paratungstate to produce catalysts
Process category (PROC):
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 15: Use as laboratory reagent
Sector of end use:
SU 9: Manufacture of fine chemicals
SU 12: Manufacture of plastics products, including compounding and conversion
Substance supplied to that use in form of:
in a mixture
Subsequent service life relevant for this use:
no

Uses at industrial sites

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Process category (PROC):
PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
Product category used:
PC 19: Intermediate
Sector of end use:
SU 14: Manufacture of basic metals, including alloys
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no
Related assessment:
use assessed in a joint CSR

Uses at industrial sites

Contributing activity / technique for the environment
Name of activity / technique:
Use of ammonium paratungstate to produce catalysts
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workers
Name of activity / technique:
Bulk delivery (open and closed processes, PROC 2). Storage (open and closed processes, PROC 2). Transfer of Raw Materials from delivery containers into hopper or central supply system (open and closed processes, PROC 9).
Dissolving (PROC 3), precipitation (PROC 3), filtration (PROC 2, 3), drying (PROC 2, 3, 4), mixing (PROC 3), batch impregnation (PROC 3) or continuous impregnation (PROC 2), forming (PROC 14) and transport (PROC 9).
Maintenance and cleaning (PROC 2) processes are involved in the production of the catalyst.
For doped catalyst: optional step, emptying bulk containers using vacuum pipe (PROC 4).
Process category (PROC):
PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
Product category used:
PC 19: Intermediate
Sector of end use:
SU 8: Manufacture of bulk, large scale chemicals (including petroleum products)
SU 9: Manufacture of fine chemicals
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no
Related assessment:
use assessed in a joint CSR

Uses at industrial sites

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Process category (PROC):
PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
Product category used:
PC 7: Base metals and alloys
Sector of end use:
SU 8: Manufacture of bulk, large scale chemicals (including petroleum products)
SU 9: Manufacture of fine chemicals
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no
Related assessment:
use assessed in a joint CSR

Uses at industrial sites

Contributing activity / technique for the environment
Name of activity / technique:
Use of ammonium paratungstate to manufacture tungsten blue oxide and tungsten trioxide powders
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Name of activity / technique:
Step 1: Transfer to calcinations - Moist ammonium paratungstate (APT) is transported from APT-production by a conveyor through a drying-device into supply tanks
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Step 2: Loading the rotary kiln furnace - The APT is filled by an automated metering device into the rotary kiln furnace
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Step 3: Calcination
1) Tungsten blue oxide is formed by calcination of APT under slightly reducing conditions in rotary kiln furnaces.
2) Tungsten trioxide is produced by calcination of APT under oxidising conditions in rotary kiln furnaces.
These furnaces operate at approximately 800 °C.
Process category (PROC):
PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
Name of activity / technique:
Step 4: Unloading the furnace and transfer to homogenisation operation - After calcination, the powder is unloaded from the furnace and screened by an automated system. The powder is collected in sealed metal containers.
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Name of activity / technique:
Step 5: Homogenisation - After calcination, the powders are blended in a tumbling mixer or a double cone blender to homogenise the tungsten oxides. The homogenisation operation occurs in a closed system.
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Step 6: Unloading homogenisation unit and fill into metal containers - Emptying the homogenisation unit and filling powder into sealed metal containers.
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Product category used:
PC 19: Intermediate
Sector of end use:
SU 14: Manufacture of basic metals, including alloys
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no
Related assessment:
use assessed in a joint CSR

Uses at industrial sites

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Process category (PROC):
PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
Product category used:
PC 19: Intermediate
Sector of end use:
SU 14: Manufacture of basic metals, including alloys
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no

Uses at industrial sites

Contributing activity / technique for the environment
Name of activity / technique:
Use of ammonium paratungstate to produce catalysts
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workers
Name of activity / technique:
Bulk delivery (open and closed processes, PROC 2). Storage (open and closed processes, PROC 2). Transfer of Raw Materials from delivery containers into hopper or central supply system (open and closed processes, PROC 9).
Dissolving (PROC 3), precipitation (PROC 3), filtration (PROC 2, 3), drying (PROC 2, 3, 4), mixing (PROC 3), batch impregnation (PROC 3) or continuous impregnation (PROC 2), forming (PROC 14) and transport (PROC 9).
Maintenance and cleaning (PROC 2) processes are involved in the production of the catalyst.
For doped catalyst: optional step, emptying bulk containers using vacuum pipe (PROC 4).
Process category (PROC):
PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
Product category used:
PC 19: Intermediate
Sector of end use:
SU 8: Manufacture of bulk, large scale chemicals (including petroleum products)
SU 9: Manufacture of fine chemicals
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no
Related assessment:
use assessed in a joint CSR but not a lead’s own use

Uses at industrial sites

Contributing activity / technique for the environment
Name of activity / technique:
Use of ammonium paratungstate to produce catalysts
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Name of activity / technique:
Use of ammonium paratungstate to produce catalysts
Process category (PROC):
PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
Name of activity / technique:
The following activities were individually coded as PROC 2: Maintenance and cleaning processes are involved in the production of the catalyst, continuous impregnation, filtration, and drying
Process category (PROC):
PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
The following activities were individually coded as PROC 3: Dissolving, precipitation, filtration, drying, mixing, and batch impregnation
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
The following activities were individually coded as PROC 2: Doped catalyst: optional step, emptying bulk containers using vacuum pipe, and dryng
Process category (PROC):
PROC 4: Chemical production where opportunity for exposure arises
Name of activity / technique:
Transport
Process category (PROC):
PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
Name of activity / technique:
Forming
Process category (PROC):
PROC 14: Tabletting, compression, extrusion, pelletisation, granulation
Product category used:
PC 19: Intermediate
Sector of end use:
SU 8: Manufacture of bulk, large scale chemicals (including petroleum products)
SU 9: Manufacture of fine chemicals
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no
Related assessment:
use assessed in a joint CSR

Uses at industrial sites

Contributing activity / technique for the environment
Name of activity / technique:
Use of ammonium paratungstate to manufacture tungsten trioxide and tungsten oxide
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Name of activity / technique:
Step 1: Transfer to calcinations - Moist ammonium paratungstate (APT) is transported from APT-production by a conveyor through a drying-device into supply tanks.
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Step 2: Loading the rotary kiln furnace - The ammonium paratungstate is filled by an automated metering device into the rotary kiln furnace
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Step 3: Calcination
1) Tungsten blue oxide is formed by calcination of ammonium paratungstate under slightly reducing conditions in rotary kiln furnaces.
2) Tungsten trioxide is produced by calcination of ammonium paratungstate under oxidising conditions in rotary kiln furnaces.
These furnaces operate at approximately 800 °C.
Process category (PROC):
PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
Name of activity / technique:
Step 4: Unloading the furnace and transfer to homogenisation operation - After calcination, the powder is unloaded from the furnace and screened by an automated system. The powder is collected in sealed metal containers.
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Name of activity / technique:
Step 5: Homogenisation - After calcination, the powders are blended in a tumbling mixer or a double cone blender to homogenise the tungsten oxides. The homogenisation operation occurs in a closed system.
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Step 6: Unloading homogenisation unit and fill into metal containers - Emptying the homogenisation unit and filling powder into sealed metal containers.
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Product category used:
PC 19: Intermediate
Sector of end use:
SU 14: Manufacture of basic metals, including alloys
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no
Related assessment:
use assessed in a joint CSR

Uses at industrial sites

Contributing activity / technique for the environmentopen allclose all
Environmental release category (ERC):
ERC1: Manufacture of the substance
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Process category (PROC):
PROC 22: Potentially closed processing operations with minerals/metals at elevated temperature. Industrial setting
Product category used:
PC 19: Intermediate
Sector of end use:
SU 14: Manufacture of basic metals, including alloys
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no

Uses at industrial sites

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Process category (PROC):
PROC 1: Chemical production or refinery in closed process without likelihood of exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 4: Chemical production where opportunity for exposure arises
Process category (PROC):
PROC 9: Transfer of substance or mixture into small containers (dedicated filling line, including weighing)
Process category (PROC):
PROC 14: Tabletting, compression, extrusion, pelletisation, granulation
Product category used:
PC 19: Intermediate
Sector of end use:
SU 8: Manufacture of bulk, large scale chemicals (including petroleum products)
SU 9: Manufacture of fine chemicals
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no

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