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IPC6

SECTION B - PERFORMING OPERATIONS; TRANSPORTING

CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID...

B01J

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B01J002/00 - B01J004/04

B 01 J

CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS (processes or apparatus for specific applications, see the relevant places for these processes or apparatus, e.g. F 26 B 3/08) [2]

Notes

(1)	In this subclass, the following terms or expressions are used with the meanings indicated:

-	"solid particles" includes such particles whether catalysts, reactants or inert in solid, semi-solid or pasty state; [2]

-	"fluidised particles" means finely divided solid particles lifted and agitated by a stream of fluid; [2]

-	"fluidised-bed technique" means fluid-solid contacting technique in which finely divided particles are lifted and agitated by a rising stream of fluid, said stream having such a speed as to form a lower dense phase (the "bed") and an upper dilute fluidised phase of "fluidised particles"; [2]

-	"processes conducted in the presence of solid particles" does not include processes wherein the only solid particles present are formed during the reaction. [3]

(2)

In this subclass, tradenames that are often found in scientific and patent literature have been used in order to define precisely the scope of the groups. [6]

Processes or devices for granulating materials, in general (granulating metals B 22 F 9/00, slag C 04 B 5/02, ores or scrap C 22 B 1/14; mechanical aspects of working of plastics or substances in a plastic state to make granules B 29 B 9/00; processes for granulating fertilisers characterised by their chemical constitution, see the relevant groups in C 05 B to C 05 G; chemical aspects of powdering or granulating of macromolecular substances C 08 J 3/12); Rendering particulate materials free flowing in general, e.g. making them hydrophobic [4]

by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops (evaporating by spraying B 01 D 1/16)

in a gaseous medium

in a liquid medium

Gelation of a colloidal solution

in stationary drums or troughs, provided with kneading or mixing appliances

in rotating drums

in rotating dishes or pans

by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain

using a vibrating apparatus

by expressing the material, e.g. through sieves and fragmenting the extruded length

by pressing in moulds or between rollers

Obtaining flakes by scraping a solid layer from a surface

on endless conveyer belts

using special binding agents

using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic [4]

Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor (apparatus for compacting or sintering of metal powders B 22 F 3/00; pressure vessels in general F 16 J 12/00; pressure vessels for containing or storing compressed, liquefied or solidified gases F 17 C; pressure vessels for nuclear reactors G 21 C) [2]

Feed or outlet devices therefor

Pressure vessels, or vacuum vessels, having closure members or seals specially adapted therefor [3]

Pressure vessels, e.g. autoclaves [2]

Processes using ultra high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds, dies (B 01 J 3/04 takes precedence; presses in general B 30 B) [2]

Application of shock waves for chemical reactions or for modifying the crystal structure of substances (blasting F 42 D) [3]

Feed devices; Feed or outlet regulating devices (feed or outlet devices for pressure vessels B 01 J 3/02)

for feeding measured quantities of reagents

using osmotic pressure [4]

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