IPC 6 English version B01J !A-B01J 20/34

B01J-B01J02034

SECTION B– PERFORMING OPERATIONS; TRANSPORTING

B 01

PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL (furnaces, kilns, ovens, retorts, in general F 27)

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]

Calcining; Fusing

Apparatus for generating gases (production of inert gas mixtures B 01 J 19/14; for generating specific gases, see the relevant subclasses, e.g. C 01 B, C 10 J)

by wet methods

Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes (processes or devices for granulating material B 01 J 2/00; furnaces F 27 B) [2]

with stationary particles, e.g. in fixed beds [2]

the fluid passing successively through two or more beds [2]

in tube reactors; the solid particles being arranged in tubes [2]

with moving particles (with fluidised particles B 01 J 8/18) [2]

moved by stirrers or by rotary drums or rotary receptacles [2]

moved by gravity in a downward flow [2]

moving in free vortex flow apparatus (free vortex flow apparatus in general B 04 C) [2]

with particles being subjected to vibrations or pulsations (B 01 J 8/40 takes precedence) [2]

with fluidised particles [2]

with liquid as a fluidising medium [2]

gas being introduced into the liquid [2]

according to "fluidised-bed" technique (B 01 J 8/20 takes precedence) [2]

with two or more fluidised beds, e.g. reactor and regeneration installations [2]

the one above the other [2]

the edge of a lower bed projecting beyond the edge of the superjacent bed [2]

with introduction into the fluidised bed of more than one kind of moving particles [2]

with stationary packing material in the fluidised bed, e.g. bricks, wire rings, baffles [2]

with fluidised bed through which there is an essentially horizontal flow of particles [2]

with fluidised bed containing a rotatable device or being subject to rotation [2]

with fluidised bed subjected to vibrations or pulsations [2]

with fluidised bed subjected to electric current or to radiations [2]

Fluidisation grids [2]

for treatment of endless filamentary, band or sheet material [2]

10/

Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor (B 01 J 19/08 takes precedence; separation, e.g. distillation, also combined with chemical reactions B 01 D) [3]

10/

of the thin-film type [3]

12/

Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor (B 01 J 3/08, B 01 J 8/00, B 01 J 19/08 take precedence) [3]

12/

for obtaining at least one reaction product which, at normal temperature, is in the solid state [3]

13/

Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons (use of substances as emulsifying, wetting, dispersing or foam producing agents B 01 F 17/00)

13/

Making microcapsules or microballoons

13/

by physical processes, e.g. drying, spraying [5]

13/

by phase separation [5]

13/

Simple coacervation, i.e. addition of highly hydrophilic material [5]

13/

Complex coacervation, i.e. interaction of oppositely charged particles [5]

13/

removing solvent from the wall-forming material solution [5]

13/

Polymerisation, crosslinking [5]

13/

Interfacial polymerisation [5]

13/

In situ polymerisation with all reactants being present in the same phase [5]

13/

After-treatment of capsule walls, e.g. hardening [5]

13/

Coating [5]

14/

Chemical processes in general for reacting liquids with liquids; Apparatus specially adapted therefor (B 01 J 8/00, B 01 J 19/08 take precedence) [3]

15/

Chemical processes in general for reacting gaseous media with non-particulate solids, e.g. sheet material; Apparatus specially adapted therefor (B 01 J 19/08 takes precedence) [3]

16/

Chemical processes in general for reacting liquids with non-particulate solids, e.g. sheet material; Apparatus specially adapted therefor (B 01 J 19/08 takes precedence) [3]

19/

Chemical, physical, or physico-chemical processes in general (physical treatment of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials, see the relevant places for such treatment, e.g. D 06 M 10/00); Their relevant apparatus (packings, fillings or grids specially adapted for biological treatment of water, waste water or sewage C 02 F 3/10; splashing boards or grids specially adapted for trickle coolers F 28 F 25/08) [3]

19/

Apparatus characterised by being constructed of material selected for its chemically-resistant properties (refractory details of furnaces F 27 D) [3]

19/

Solidifying liquids (making micro-capsules B 01 J 13/02) [3]

19/

Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor (application of shock waves B 01 J 3/08; generating or handling plasma H 05 H 1/00) [3]

19/

employing sonic or ultrasonic vibrations (for auxiliary pretreatment of gases or vapours to be cleaned B 01 D 51/08; for cleaning B 08 B 3/12) [3]

19/

employing electromagnetic waves [3]

19/

Production of inert gas mixtures; Use of inert gases in general (apparatus for generating gases B 01 J 7/00; separation of gases or vapours B 01 D 53/00) [3]

19/

Preventing evaporation or oxidation of non-metallic liquids by applying a floating layer, e.g. of micro-balloons [3]

19/

Stationary reactors having moving elements inside (B 01 J 19/08, B 01 J 19/26 take precedence) [3]

19/

in the form of helices, e.g. screw reactors (thin-film reactors B 01 J 10/02) [3]

19/

in the form of endless belts [3]

19/

Stationary reactors without moving elements inside (B 01 J 19/08, B 01 J 19/26 take precedence; with stationary particles B 01 J 8/02) [3]

19/

Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles [3]

19/

Moving reactors, e.g. rotary drums (B 01 J 19/08 takes precedence; centrifuges B 04 B; rotary drum furnaces F 27 B 7/00) [3]

19/

Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer [5]

19/

Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer [5]

Solid sorbent compositions; Filter aid compositions; Catalysts [3]

Notes

(1)

In groups B 01 J 20/00 to B 01 J 31/00, metal salts having an anion composed of metal and oxygen only, e.g. molybdates, are considered as chemically bound mixtures of the component metal oxides. [2,5]

(2)

In groups B 01 J 21/00 to B 01 J 38/00, the following term is used with the meaning indicated:

–

"catalyst" covers also a carrier forming part of the catalyst. [2,5]

(3)

Attention is drawn to the definitions of groups of chemical elements following the title of section C. [2]

(4)

In groups B 01 J 20/00 to B 01 J 38/00, in the absence of an indication to the contrary, classification is made in the last appropriate place. [2,5]

(5)

In groups B 01 J 20/00 to B 01 J 38/00, if a carrier is considered of interest, further classification is made in group B 01 J 32/00. [4]

(6)

In groups B 01 J 21/00 to B 01 J 31/00, if a regeneration or reactivation process is considered of interest, further classification is made in group B 01 J 38/00. [4]

(7)

Classification of the:

–

carriers;

–

forms or physical properties;

–

preparation or activation;

–

regeneration or reactivation

of catalysts according to more than one of main groups B 01 J 21/00 to B 01 J 31/00 is made in the following general groups:

–

B 01 J 32/00 for such carriers;

–

B 01 J 35/00 for such forms or physical properties;

–

B 01 J 37/00 for such preparation or activation;

–

B 01 J 38/00 for such regeneration or reactivation. [4,5]

(8)

Pure compounds or elements, or their recovery from solid sorbent compositions, filter aid compositions, or catalysts, are classified in the appropriate subclass for chemical compounds or elements. However, when it is explicitly stated that the pure compound or element, in a particular form, is especially useful as a solid sorbent, filter aid, or catalyst, it is further classified in group B 01 J 20/00 or B 01 J 35/00. [2]

20/

Solid sorbent compositions or filter aid compositions; Processes for preparing, regenerating or reactivating thereof (use of sorbent compositions in liquid separation B 01 D 15/00, use of filter aid compositions B 01 D 37/02; use of sorbent compositions in gas separation B 01 D 53/02, B 01 D 53/14; sorbent materials for column chromatography G 01 N 30/48) [3]

20/

comprising inorganic material [3]

20/

comprising compounds of alkali metals, alkaline earth metals or magnesium [3]

20/

comprising oxides or hydroxides of metals not provided for in group B 01 J 20/04 [3]

20/

comprising aluminium oxide or hydroxide; comprising bauxite [3]

20/

comprising silica or silicate [3]

20/

Naturally occuring clays or bleaching earth [3]

20/

Diatomaceous earth [3]

20/

Alumino-silicates (B 01 J 20/12 takes precedence) [3]

20/

Synthetic zeolitic molecular sieves [3]

20/

comprising free carbon; comprising carbon obtained by carbonising processes (active carbon C 01 B 31/08) [3]

20/

comprising organic material [3]

20/

Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives [3]

20/

Synthetic macromolecular compounds [3]

20/

characterised by their form or physical properties [3]

20/

Processes for preparing, regenerating or reactivating [3]

20/

Impregnating or coating [3]

20/

Regenerating or reactivating [3]

Note

In groups B 01 J 21/00 to B 01 J 31/00, it is desirable to add the indexing codes of groups B 01 J 101:00 to B 01 J 105:00. The indexing codes should be linked. [6]

B01J 21/00 - B01J 23/96