Carbonates of sodium, potassium or alkali metals in general

Introduced: September 1968

Title

Titles differ between systems:

IPC: Carbonates of sodium, potassium, or alkali metals in general

CPC: Carbonates of sodium, potassium or alkali metals in general

Full titles differ between systems:

IPC:

Carbonates of sodium, potassium, or alkali metals in general

CPC:

Carbonates of sodium, potassium or alkali metals in general

IPC and CPC are identically structured here. All 13 subcodes exist in both systems.

4 shared codes have differing titles between IPC and CPC.

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C01D 7/02 Preparation by double decomposition IPC+CPC Available in IPC and CPC
C01D 7/06 Preparation via sodium or potassium magnesium carbonate IPC+CPC Available in IPC and CPC
C01D 7/07 Preparation from the hydroxides since 1974 IPC+CPC Available in IPC and CPC
C01D 7/08 Preparation from or via cyano compounds of sodium or potassium (C01D1/26 takes precedence) IPC+CPC Available in IPC and CPC
C01D 7/10 Preparation of bicarbonates from carbonates (ammonia soda process C01D7/18) IPC+CPC Available in IPC and CPC
C01D 7/12 Preparation of carbonates from bicarbonates +2 CPC IPC+CPC Available in IPC and CPC
C01D 7/14 Preparation of sesquicarbonates IPC+CPC Available in IPC and CPC
C01D 7/16 Preparation from compounds of sodium or potassium with amines and carbon dioxide IPC+CPC Available in IPC and CPC
C01D 7/18 Preparation by the ammonia-soda process IPC+CPC Available in IPC and CPC
C01D 7/22 Purification IPC+CPC Available in IPC and CPC
C01D 7/35 Varying the content of water of crystallisation or the specific gravity since 1974 IPC+CPC Available in IPC and CPC
C01D 7/38 Preparation in the form of granules, pieces or other shaped products IPC+CPC Available in IPC and CPC
C01D 7/42 Preventing the absorption of moisture or caking IPC+CPC Available in IPC and CPC

Class C01,2013–2023, worldwide · Source: EPO PATSTAT

Class C01,2013–2023, worldwide · Source: EPO PATSTAT

CHINESE ACADEMY OF SCIENCES 4,293
LG CHEM KR 3,317
BASF (BADISCHE ANILIN & SODA FABRIK) DE 2,219
SINOPEC (CHINA PETROCHEMICAL CORPORATION) 2,154
OMYA INTERNATIONAL CH 1,524
PANASONIC INTELLECTUAL PROPERTY JP 1,362
SAUDI ARABIAN OIL COMPANY SA 1,298
SUMITOMO METAL MINING COMPANY JP 1,286
CENTRAL SOUTH UNIVERSITY 1,243
L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE FR 1,238