Skip over navigation
Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
Collapse
FLOTATION ; DIFFERENTIAL SEDIMENTATION ( sedimentation in general B01D 21/00 ; in combination with other separation of solids B03B; sink-float separation B03B 5/28 ; detergents, soaps C11D )
WARNING
-
The following groups are not complete: B03D 1/023, see also B03D 1/02 B03D 1/025, see also B03D 1/02 B03D 1/026, see also B03D 1/02 B03D 1/028, see also B03D 1/02 B03D 1/082, see also B03D 1/08 B03D 1/085, see also B03D 1/08 B03D 1/087, see also B03D 1/08 B03D 1/1406, see also B03D 1/14 B03D 1/1443, see also B03D 1/14 B03D 1/145 , see also B03D 1/14 B03D 1/1456 , see also B03D 1/14 B03D 1/1462 , see also B03D 1/14 B03D 1/1468 , see also B03D 1/14 B03D 1/1475 , see also B03D 1/14 B03D 1/1487, see also B03D 1/14 B03D 1/1493, see also B03D 1/14 B03D 1/242, see also B03D 1/24 B03D 1/247, see also B03D 1/24 ]

Collapse
Flotation ( conditioning for flotation, general arrangement of plan B03B )
NOTE
-
In groups B03D 1/001 to B03D 1/018 , in the absence of an indication to the contrary, classification is made in the last appropriate place.

Collapse
.
Flotation agents ( conditioners B03B 1/00 )
B03D 1/002
. .
Inorganic compounds
Collapse
B03D 1/004
. .
Organic compounds
B03D 1/0043
. . .
{
modified so as to contain a polyether group
}
B03D 1/0046
. . .
{
containing silicon
}
B03D 1/006
. . .
Hydrocarbons
B03D 1/008
. . .
containing oxygen
Collapse
B03D 1/01
. . .
containing nitrogen
B03D 1/011
. . . .
{
Quaternary ammonium compounds
}
B03D 1/012
. . .
containing sulfur
B03D 1/014
. . .
containing phosphorus
B03D 1/016
. . .
Macromolecular compounds
B03D 1/018
. .
Mixtures of inorganic and organic compounds
Collapse
B03D 1/02
.
Froth-flotation processes
B03D 1/021
. .
{
for treatment of phosphate ores
}
B03D 1/023
. .
{
Carrier flotation; Flotation of a carrier material to which the target material attaches
}
B03D 1/025
. .
{
adapted for the flotation of fines
}
B03D 1/026
. .
{
Using an immiscible liquid in place of a gas for flotation
}
B03D 1/028
. .
{
Control and monitoring of flotation processes; computer models therefor
}
B03D 1/04
. .
by varying ambient atmospheric pressure
B03D 1/06
. .
differential
Collapse
.
Subsequent treatment of concentrated product ( froth dispersion B01D 19/02 )
B03D 1/082
. .
{
of the froth product, e.g. washing
}
B03D 1/085
. .
{
of the feed, e.g. conditioning, de-sliming
}
B03D 1/087
. .
{
of the sediment, e.g. regrinding
}
B03D 1/10
. .
Removing adhering liquid from separated materials ( processes or devices capable of general use B01D )
B03D 1/12
.
Agent recovery
Collapse
.
Flotation machines ( devices for feeding measured quantities of reagents B01J 4/02 ; flotation apparatus for enzymology or microbiology C12M 1/09 )
B03D 1/1406
. .
{
with special arrangement of a plurality of flotation cells, e.g. positioning a flotation cell inside another
}
B03D 1/1412
. .
{
with baffles, e.g. at the wall for redirecting settling solids
}
Collapse
B03D 1/1418
. .
{
using centrifugal forces
}
B03D 1/1425
. . .
{
air-sparged hydrocyclones
}
B03D 1/1431
. .
{
Dissolved air flotation machines
}
. .
{
using electroflotation ( waste water treatment using electroflotation C02F 1/465 )
}
Collapse
B03D 1/1443
. .
{
Feed or discharge mechanisms for flotation tanks
}
. . .
{
Feed mechanisms for reagents ( devices for feeding measured quantities of reagents B01J 4/02 )
}
B03D 1/1456
. . .
{
Feed mechanisms for the slurry
}
B03D 1/1462
. . .
{
Discharge mechanisms for the froth
}
B03D 1/1468
. . .
{
Discharge mechanisms for the sediments
}
B03D 1/1475
. . .
{
Flotation tanks having means for discharging the pulp, e.g. as a bleed stream
}
B03D 1/1481
. .
{
with a plurality of parallel plates
}
B03D 1/1487
. .
{
Means for cleaning or maintenance
}
B03D 1/1493
. .
{
with means for establishing a specified flow pattern
}
Collapse
. .
with impellers ; Subaeration machines
{
( mixing gases or vapours with liquids B01F 3/04 )
}
B03D 1/18
. . .
without air supply
B03D 1/20
. . .
with internal air pumps
B03D 1/22
. . .
with external blowers
Collapse
. .
Pneumatic
{
( mixing gases or vapours with liquids B01F 3/04 )
}
B03D 1/242
. . .
{
Nozzles for injecting gas into the flotation tank
}
B03D 1/245
. . .
{
Injecting gas through perforated or porous area
}
B03D 1/247
. . .
{
Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type
}
B03D 1/26
. . .
Air lift machines
Collapse
Differential sedimentation
Collapse
B03D 3/02
.
Coagulation
B03D 3/04
. .
assisted by vibrations
B03D 3/06
.
Flocculation
Collapse
B03D 2201/00
Specified effects produced by the flotation agents ( use of substances as emulsifying, wetting, dispersing or foam-producing agents B01F 17/00 )
B03D 2201/002
.
Coagulants and Flocculants
B03D 2201/005
.
Dispersants
B03D 2201/007
.
Modifying reagents for adjusting pH or conductivity
B03D 2201/02
.
Collectors
B03D 2201/04
.
Frothers
B03D 2201/06
.
Depressants
Collapse
B03D 2203/00
Specified materials treated by the flotation agents ; specified applications ( paper pulp processing D21F 1/70 , de-inking of paper pulp D21B 1/325 )
B03D 2203/001
.
Agricultural products, food, biogas, algae
B03D 2203/003
.
Biotechnological applications, e.g. separation or purification of enzymes, hormones, vitamins, viruses
B03D 2203/005
.
Fine and commodity chemicals
B03D 2203/006
.
Oil well fluids, oil sands, bitumen
B03D 2203/008
.
Water purification, e.g. for process water recycling ( waste water treatment C02F 1/24 )
Collapse
B03D 2203/02
.
Ores
B03D 2203/025
. .
Precious metal ores
Collapse
B03D 2203/04
. .
Non-sulfide ores
B03D 2203/06
. . .
Phosphate ores
B03D 2203/08
. . .
Coal ores, fly ash or soot
B03D 2203/10
. . .
Potassium ores
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013