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BOILING; BOILING APPARATUS; { EVAPORATION; EVAPORATION APPARATUS}
Definition statement
This subclass covers:

Documents where evaporation of liquid without separation takes place.

Relationship between large subject matter areas

Semi-conductor fabrication involving evaporation step process is classified in H01L 21/00.

Coating by vacuum evaporation is classified in C23C 14/00

Informative references
Attention is drawn to the following places, which may be of interest for search:

selective catalytic reduction (SCR)

feeding chemical reactors, in particular reformer

Boiling; Boiling apparatus for physical or chemical purposes (preparation of starch C08B 30/00; sugar industry C13; steam generation F22; domestic boilers F24); {Evaporation in general}
Definition statement
This group covers:
  • Boiling; Boiling apparatus for physical or chemical purposes, e.g. preventing foaming, preventing bumping
  • Evaporation
Informative references
Attention is drawn to the following places, which may be of interest for search:

preparation of starch

boiling in sugar industry

boiling for steam generation

domestic boilers

{Evaporation or evaporation apparatus for physical or chemical purposes, e.g. evaporation of liquids for gas phase reactions (separation by evaporation B01D; evaporation in chemical vapor deposition or similar processes C23C; cooling by evaporation F01P 9/02; evaporation of fuels to be feeded to combustion apparatus, e.g. burners F23D; refrigeration involving evaporation F25B; drying involving evaporation F26B; evaporation for preparing samples for analysis G01N)}
Definition statement
This subgroup covers:

Evaporation or evaporation apparatus for physical or chemical purposes, i.e. transformation of a liquid into gaseous form to be introduced in a further step (mainly reaction), e.g evaporation of liquids for gas phase reactions, evaporator for organic materials

Relationship between large subject matter areas

In B01B 1/00 there is no separation of component while in B01D 1/00 there is separation of component.

Informative references
Attention is drawn to the following places, which may be of interest for search:

evaporation for separation

chemical vapour deposition

cooling by evaporation

evaporation of fuels to be fed

refrigeration by evaporation

drying by evaporation

evaporation for preparing samples for analysis

Glossary of terms
In this subgroup, the following terms (or expressions) are used with the meaning indicated:

Evaporation

surface phenomenon of a liquid occuring at any temperature

Boiling

phenomenon happening throughout the bulk of the a liquid. It only happens when the temperature is above the boiling point of that substance

Boiling apparatus provided with reflux condenser
References relevant to classification in this group
This subgroup does not cover:

Condensation in separation

Glossary of terms
In this subgroup, the following terms (or expressions) are used with the meaning indicated:

Reflux condenser

Condenser where the hot solvent vapors of a liquid being heated, are cooled and allowed to drip back

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Last Modified: 10/11/2013