IPC Definitions - January 01, 2012

C10H - Definition fr

Definition statement

This subclass covers:

Methods and apparatus for production of acetylene by wet methods, including arrangements for water feed and carbide feed; high-pressure acetylene generators; details of acetylene generators, e.g. carbide cartridges, carbide compositions, safety devices, sludge removal.

References relevant to classification in this subclass

This subclass does not cover:

Purification of acetylene

C07C 7/00

Informative references

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

Manufacture of acetylene by methods not comprising carbides

C07C 11/24

Gas burners in association with a gaseous fuel source, e.g. an acetylene generator

F23D 14/28

Valves, cocks, taps in general

F16K

Glossary of terms

In this subclass, the following terms or expressions are used with the meaning indicated:

Wet methods for acetylene production

Traditionally acetylene is manufactured from calcium carbonate (limestone) and coal. The calcium carbonate is first converted into calcium oxide and the coal into coke, then the two are reacted together to form calcium carbide and carbon monoxide:

CaO + 3C → CaC2 + CO

Calcium carbide (calcium acetylide) and water are then reacted by any of several methods to produce acetylene and calcium hydroxide, by a reaction discovered by Friedrich Wöhler in 1862.

CaC2 + 2H2O → Ca(OH)2 + C2H2

Synonyms and Keywords

Acetylene

Ethyne, C2H2, H-C≡C-H