|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

|  | B01 - B07 |
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION |
Method |
General operations | B01D
by centrifugal force, using centrifuges or free-vortex apparatus | B01D
using magnetic or electrostatic effect | B03C
Apparatus |
General operations | B01D
by centrifugal force, using centrifuges or free-vortex apparatus | B04B, B04C
using magnetic or electrostatic effect | B03C
SOLID/LIQUID OR SOLID/GAS SEPARATION |
Method |
General operations | B01D
by centrifugal force | B01D
using centrifuges or free-vortex apparatus | B01D
using magnetic or electrostatic effect | B03C
Apparatus |
General operations | B01D
by centrifugal force | B01D
using centrifuges or free-vortex apparatus | B04B, B04C
using magnetic or electrostatic effect | B03C
SOLID/SOLID SEPARATION |
Method |
Dry methods |
material in bulk | B07B
Individual sorting | B07C
Screening, sifting, pneumatic sorting | B07B
using pneumatic tables or jigs | B03B
by magnetic or electrostatic effect | B03C
by centrifugal force | B07B
using centrifuges or free-vortex apparatus | B07B
Wet methods |
General operations | B03B
flotation, differential sedimentation | B03D
screening | B07B
Combinations Dry methods - wet methods | B03B
Apparatus |
Dry methods |
material in bulk | B07B
Individual sorting | B07C
Screening, sifting, pneumatic sorting | B07B
using pneumatic tables or jigs | B03B
by magnetic or electrostatic effect | B03C
by centrifugal force | B07B
using centrifuges or free-vortex apparatus | B04B, B04C
Wet methods |
General operations | B03B
flotation, differential sedimentation | B03D
screening | B07B
Combinations Dry methods - wet methods | B03B

SHAPING

|  | B27 |
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL

|  | B27K |
PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR (applying liquids or other fluent materials to surfaces in general Fulltext... Hierarchy... Expanded...B05; coating wood or similar material Fulltext... Hierarchy... Expanded...B44D); CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS [2]

P:20 |  | B27K 1/00 |
Damping wood

|  | B27K 1/02 |
· | Apparatus

P:10 |  | B27K 3/00 |
Impregnating wood (dyeing, staining Fulltext... Hierarchy... Expanded...B27K 5/00)

|  | B27K 3/02 |
· | Processes; Apparatus

|  | B27K 3/04 |
· · | Impregnating in open tanks

|  | B27K 3/06 |
· · | Sap stream methods

|  | B27K 3/08 |
· · | Impregnating by pressure

|  | B27K 3/10 |
· · · | Apparatus

|  | B27K 3/12 |
· · | Impregnating by coating the surface of the wood with an impregnating paste

|  | B27K 3/14 |
· · | Bandage methods

|  | B27K 3/15 |
· · | Impregnating involving polymerisation [2]

|  | B27K 3/16 - B27K 3/34 |
Note(s) In groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B27K 3/16-B27K 3/34, in the absence of an indication to the contrary, impregnating agents are classified in the last appropriate place.

|  | B27K 3/16 |
· | Inorganic impregnating agents

|  | B27K 3/18 |
· · | Compounds of alkaline earth metals

|  | B27K 3/20 |
· · | Compounds of alkali metals or ammonium

|  | B27K 3/22 |
· · | Compounds of zinc or copper

|  | B27K 3/24 |
· · | Compounds of mercury

|  | B27K 3/26 |
· · | Compounds of iron, aluminium, or chromium

|  | B27K 3/28 |
· · | Compounds of arsenic or antimony

|  | B27K 3/30 |
· · | Compounds of fluorine

|  | B27K 3/32 |
· · | Mixtures of different inorganic impregnating agents

|  | B27K 3/34 |
· | Organic impregnating agents

|  | B27K 3/36 |
· · | Aliphatic compounds

|  | B27K 3/38 |
· · | Aromatic compounds

|  | B27K 3/40 |
· · · | halogenated

|  | B27K 3/42 |
· · · | nitrated, or nitrated and halogenated

|  | B27K 3/44 |
· · | Tar; Mineral oil

|  | B27K 3/46 |
· · · | Coal tar

|  | B27K 3/48 |
· · · | Mineral oil

|  | B27K 3/50 |
· · | Mixtures of different organic impregnating agents

|  | B27K 3/52 |
· | Impregnating agents containing mixtures of inorganic and organic compounds

P:30 |  | B27K 5/00 |
Treating of wood not provided for in groups Fulltext... Hierarchy... Expanded...B27K 1/00, Fulltext... Hierarchy... Expanded...B27K 3/00

|  | B27K 5/02 |
· | Staining or dyeing wood; Bleaching wood (bleaching wood pulp Fulltext... Hierarchy... Expanded...D21C 9/10)

|  | B27K 5/04 |
· | Combined bleaching or impregnating and drying of wood

|  | B27K 5/06 |
· | Softening or hardening wood

P:0 |  | B27K 7/00 |
Chemical or physical treatment of cork (mechanical working of cork Fulltext... Hierarchy... Expanded...B27J 5/00)

P:40 |  | B27K 9/00 |
Chemical or physical treatment of reed, straw, or similar material (mechanical working of cane or the like Fulltext... Hierarchy... Expanded...B27J 1/00)