B
SECTION B — PERFORMING OPERATIONS; TRANSPORTING
 B01 - 
B07
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION
Method
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/LIQUID OR SOLID/GAS SEPARATION
Method
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/SOLID SEPARATION
Method
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB07B
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
Apparatus
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB04B, B04C
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
  
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 B05; coating wood or similar material 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 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 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 B27K 1/00, B27K 3/00
 B27K 5/02
·  Staining or dyeing wood; Bleaching wood (bleaching wood pulp 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 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 B27J 1/00)