C01F7/38 - CPC Classification Index

ClassID:

85672 ⎘

C01F7/38 - CPC Classification

Classification description:

Compounds of aluminium; Aluminium oxide; Aluminium hydroxide; Aluminates Preparation of aluminium oxide by thermal reduction of aluminous minerals

Sub-classes:

C01F7/40 » in the presence of aluminium sulfide 0

Recent Application in this class:

20190338172

2019-11-07

SINTERED ABRASIVE PARTICLES, METHOD OF MAKING THE SAME, AND ABRASIVE ARTICLES INCLUDING THE SAME

20160068729

2016-03-10

Sintered abrasive particles, method of making the same, and abrasive articles including the same

20150175769

2015-06-25

Titanium oxide-containing aluminum oxide particles based on corundum melted in an electric arc furnace from calcined alumina, and a method for the production thereof

20130183527

2013-07-18

PROCESS FOR OBTAINING NANOCRYSTALLINE CORUNDUM FROM NATURAL OR SYNTHETIC ALUMS

20090311154

2009-12-17

Extraction process for reactive metal oxides

20050008564

2005-01-13

Phase formation of oxygen reduced valve metal oxides and granulation methods