CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS

Introduced: September 1968

Description

B01J encompasses chemical and physical processes conducted on a laboratory or industrial scale, with particular emphasis on catalytic and colloid chemistry applications. This subclass covers reactors, reaction vessels, and apparatus designed for mixing, heating, cooling, and controlling conditions during chemical transformations, as well as methods for catalysis, heterogeneous reactions, and colloidal systems. The classification includes solid-liquid separation techniques relevant to process chemistry, such as filtration and centrifugation when integrated with chemical processing. B01J excludes apparatus solely dedicated to distillation (B01D), biochemical processes in dedicated bioreactors (C12M), and metallurgical processes (C22).

Of 42 combined children, 30 exist in both systems.

11 codes are CPC-only extensions, 1 exist only in IPC.

Note: 11 CPC extensions are marked as secondary classification only.

18 shared codes have differing titles between IPC and CPC.

Child Classifications

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B01J 10/00 Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor (B01J19/08 takes precedence; separation, e.g. distillation, also combined with chemical reactions B01D, ) since 1974 +3 CPC IPC+CPC Available in IPC and CPC
B01J 12/00 Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor (B01J3/08, B01J8/00, B01J19/08 take precedence) since 1980 +3 CPC IPC+CPC Available in IPC and CPC
B01J 13/00 Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons +6 CPC IPC+CPC Available in IPC and CPC
B01J 14/00 Chemical processes in general for reacting liquids with liquids; Apparatus specially adapted therefor (B01J8/00, B01J19/08 take precedence) since 1980 +1 CPC IPC+CPC Available in IPC and CPC
B01J 15/00 Chemical processes in general for reacting gaseous media with non-particulate solids, e.g. sheet material; Apparatus specially adapted therefor (B01J19/08 takes precedence) since 1980 +1 CPC IPC+CPC Available in IPC and CPC
B01J 16/00 Chemical processes in general for reacting liquids with non- particulate solids, e.g. sheet material; Apparatus specially adapted therefor (B01J19/08 takes precedence) since 1980 +1 CPC IPC+CPC Available in IPC and CPC
B01J 19/00 Chemical, physical or physico-chemical processes in general; Their relevant apparatus since 1980 +6 CPC IPC+CPC Available in IPC and CPC
B01J 2/00 Processes or devices for granulating materials in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic +2 CPC IPC+CPC Available in IPC and CPC
B01J 20/00 Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof since 1980 IPC+CPC Available in IPC and CPC
B01J 21/00 Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium since 1974 +1 CPC IPC+CPC Available in IPC and CPC
B01J 2203/00 Processes utilising sub- or super atmospheric pressure 2nd only +1 CPC CPC only CPC only
B01J 2204/00 Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices 2nd only +3 CPC CPC only CPC only
B01J 2208/00 Processes carried out in the presence of solid particles; Reactors therefor 2nd only +5 CPC CPC only CPC only
B01J 2219/00 Chemical, physical or physico-chemical processes in general; Their relevant apparatus 2nd only +12 CPC CPC only CPC only
B01J 2220/00 Aspects relating to sorbent materials 2nd only +3 CPC CPC only CPC only
B01J 2229/00 Aspects of molecular sieve catalysts not covered by B01J29/00 2nd only +3 CPC CPC only CPC only
B01J 2231/00 Catalytic reactions performed with catalysts classified in B01J31/00 2nd only +8 CPC CPC only CPC only
B01J 2235/00 Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties 2nd only +4 CPC CPC only CPC only
B01J 23/00 Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 (B01J21/16 takes precedence) since 1974 +3 CPC IPC+CPC Available in IPC and CPC
B01J 25/00 Catalysts of the Raney type since 1974 IPC+CPC Available in IPC and CPC