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IPC 7
  B01D 47/00 - B01D 61/58  
B01D06300-B01D18700
 

SECTION B – PERFORMING OPERATIONS; TRANSPORTING


B 01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL (furnaces, kilns, ovens, retorts, in general F27)


B 01 DSEPARATION (separating solids from solids by wet methods B03B, B03D, by pneumatic jigs or tables B03B, by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B 9/02; treatment of water C02F, e.g. softening by ion-exchange C02F 1/42; arrangement or mounting of filters in air-conditioning, air-humidification or ventilation F24F 13/28) [5]


63/

00Apparatus in general for separation processes using semi-permeable membranes  [5]

63/

02.Hollow fibre modules  [5]

63/

04..comprising multiple hollow fibre assemblies  [5]

63/

06.Tubular membrane modules  [5]

63/

08.Flat membrane modules  [5]

63/

10.Spiral-wound membrane modules  [5]

63/

12..comprising multiple spiral-wound assemblies  [5]

63/

14.Pleat-type membrane modules  [5]

63/

16.Rotary, reciprocated or vibrated modules  [5]


65/

00Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes  [5]

65/

02.Membrane cleaning or sterilisation  [5]

65/

04..with movable bodies, e.g. foam balls  [5]

65/

06..with special washing compositions  [5]

65/

08.Prevention of membrane fouling or of concentration polarisation  [5]

65/

10.Testing of membranes or membrane apparatus; Detecting or repairing leaks  [5]


67/

00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus  [5]


69/

00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor  [5]

Notes

(1)In this group, the following term is used with the meaning indicated:

 "properties" covers those of a mechanical, physical or chemical nature.  [5]

(2)Manufacturing processes, if considered of interest, are also classified in group B01D 67/00.  [5]

69/

02.characterised by their properties  [5]

69/

04.Tubular membranes  [5]

69/

06.Flat membranes  [5]

69/

08.Hollow fibre membranes (manufacture of hollow fibres D01D 5/24, D01F 1/08)  [5]

69/

10.Supported membranes; Membrane supports  [5]

69/

12.Composite membranes; Ultra-thin membranes  [5]

69/

14.Dynamic membranes  [5]


71/

00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor  [5]

Notes

(1)In this group, if the material is a composition it is classified according to the constituent present in highest proportion. This constituent is classified according to the last place rule (see Note before group B01D 61/00). If there is more than one constituent present in equal highest proportions, then each of these constituents is classified according to the last place rule.  [5]

(2)Manufacturing processes, if considered of interest, are also classified in group B01D 67/00.  [5]

71/

02.Inorganic material  [5]

71/

04..Glass  [5]

71/

06.Organic material  [5]

71/

08..Polysaccharides  [5]

71/

10...Cellulose; Modified cellulose  [5]

71/

12...Cellulose derivatives  [5]

71/

14....Esters of organic acids  [5]

71/

16.....Cellulose acetate  [5]

71/

18.....Mixed esters, e.g. cellulose acetate-butyrate  [5]

71/

20....Esters of inorganic acids, e.g. cellulose nitrate  [5]

71/

22....Cellulose ethers  [5]

71/

24..Rubbers  [5]

Note

 In this group the following term is used with the meaning indicated:

 "rubber" covers:

 (a)natural or conjugated diene rubber;

 (b)rubber in general (for specific rubber, see the group provided for such macromolecular compound).  [5]

71/

26..Polyalkenes  [5]

71/

28..Polymers of vinyl aromatic compounds  [5]

71/

30..Polyalkenyl halides  [5]

71/

32...containing fluorine atoms  [5]

71/

34....Polyvinylidene fluoride  [5]

71/

36....Polytetrafluoroethene  [5]

71/

38..Polyalkenylalcohols; Polyalkenylesters; Polyalkenylethers; Polyalkenylaldehydes; Polyalkenylketones; Polyalkenylacetals; Polyalkenylketals  [5]

71/

40..Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters  [5]

71/

42...Polymers of nitriles, e.g. polyacrylonitrile  [5]

71/

44..Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D 71/26 to B01D 71/42  [5]

71/

46..Epoxy resins  [5]

71/

48..Polyesters  [5]

71/

50..Polycarbonates  [5]

71/

52..Polyethers  [5]

71/

54..Polyureas; Polyurethanes  [5]

71/

56..Polyamides, e.g. polyester-amides  [5]

71/

58..Other polymers having nitrogen in the main chain, with or without oxygen or carbon only  [5]

71/

60...Polyamines  [5]

71/

62...Polycondensates having nitrogen-containing heterocyclic rings in the main chain  [5]

71/

64....Polyimides; Polyamide-imides; Polyester-imides; Polyamide acids or similar polyimide precursors  [5]

71/

66..Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only  [5]

71/

68...Polysulfones; Polyethersulfones  [5]

71/

70..Polymers having silicon in the main chain, with or without sulfur, nitrogen, oxygen or carbon only  [5]

71/

72..Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D 71/46 to B01D 71/70  [5]

71/

74..Natural macromolecular material or derivatives thereof (B01D 71/08, B01D 71/24 take precedence)  [5]

71/

76..Macromolecular material not specifically provided for in a single one of groups B01D 71/08 to B01D 71/74 (rubbers in general B01D 71/24)  [5]

71/

78...Graft polymers  [5]

71/

80...Block polymers  [5]

71/

82...characterised by the presence of specified groups, e.g. introduced by chemical after-treatment  [5]


Indexing scheme associated with group B01D 24/00. The indexing codes should be unlinked.  [5]

Note

 Attention is drawn to Chapter IV of the Guide which sets forth the rules concerning the application and presentation of the different types of indexing code.  [6]


101:

00Types of filters having loose filtering material  [5]

101:

02.Carbon filters  [5]

101:

04.Sand or gravel filters  [5]


Indexing scheme associated with group B01D 53/34 and subgroups, relating to the reactants used for the chemical purification of waste gases. The indexing codes should be unlinked.  [6]

Note

 Attention is drawn to Chapter IV of the Guide which sets forth the rules concerning the application and presentation of the different types of indexing code.  [6]


111:

00Inorganic acids  [6]

111:

20.hydrochloric  [6]

111:

40.nitric  [6]

111:

60.sulfuric  [6]

111:

80.phosphoric  [6]

111:

90.Hydrogen sulfide  [6]


113:

00Organic acids  [6]


115:

00Inorganic bases or salts  [6]

115:

10.Ammonia or ammonium hydroxide  [6]

115:

20.Carbonates or bicarbonates  [6]

115:

22..of alkali metals  [6]

115:

24..of calcium  [6]

115:

26..of magnesium  [6]

115:

30.Hydroxides or oxides (ammonium hydroxide B01D 115:10)  [6]

115:

32..of alkali metals  [6]

115:

34..of calcium  [6]

115:

36..of magnesium  [6]


117:

00Organic bases  [6]


119:

00Sulfur dioxide  [6]


Indexing scheme associated with groups B01D 53/34 to B01D 53/94, relating to the catalysts used for the chemical purification of waste gases. The indexing codes should be unlinked.  [6]

Note

 Attention is drawn to Chapter IV of the Guide which sets forth the rules concerning the application and presentation of the different types of indexing code.  [6]


131:

00Metals or alloys  [6]

131:

10.Platinum or alloys thereof  [6]

131:

20.Palladium or alloys thereof  [6]


133:

00Carbon  [6]


135:

00Metal oxides or hydroxides  [6]

135:

10.of aluminium  [6]

135:

20.of iron  [6]

135:

40.of titanium  [6]

135:

50.of vanadium  [6]


137:

00Silica  [6]


139:

00Metal sulfides  [6]


141:

00Zeolites  [6]


Indexing scheme associated with groups B01D 53/00, B01D 53/34 to B01D 53/73 and B01D 53/92, relating to the type of treatment. The indexing codes should be unlinked.  [6]

Note

 Attention is drawn to Chapter IV of the Guide which sets forth the rules concerning the application and presentation of the different types of indexing code.  [6]


151:

00Gas phase, e.g. by using aerosols  [6]


153:

00Liquid phase, e.g. by scrubbing  [6]


155:

00Semi-solid phase, i.e. by using slurries  [6]


157:

00Solid phase  [6]

157:

10.Fluidised bed  [6]


159:

00Biological  [6]


161:

00Catalytic  [6]


Indexing scheme associated with groups B01D 53/00 to B01D 53/24, B01D 53/30 to B01D 53/34 and B01D 53/73 to B01D 53/94, relating to the components removed. The indexing codes should be unlinked.  [6]

Note

 Attention is drawn to Chapter IV of the Guide which sets forth the rules concerning the application and presentation of the different types of indexing code.  [6]


171:

00Single element gases other than halogens  [6]

171:

10.Nitrogen  [6]

171:

20.Oxygen  [6]

171:

30.Ozone  [6]

171:

40.Hydrogen  [6]

171:

50.Noble gases  [6]


173:

00Sulfur compounds  [6]

173:

10.Sulfur oxides (B01D 177:00 takes precedence)  [6]

173:

20.Hydrogen sulfide  [6]


175:

00Nitrogen compounds  [6]

175:

10.Nitrogen oxides (B01D 177:00 takes precedence)  [6]

175:

20.Ammonia  [6]


177:

00Simultaneously removing sulfur oxides and nitrogen oxides  [6]


179:

00Carbon oxides  [6]


181:

00Heavy metals or compounds thereof  [6]


183:

00Halogens or halogen compounds  [6]

183:

10.Organic halogen compounds  [6]


185:

00Organic compounds not provided for in groups B01D 173:00 to B01D 183:10  [6]

185:

10.Hydrocarbons  [6]


187:

00Water  [6]


  B01D 47/00 - B01D 61/58   
 

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