C01F7/20 - CPC Classification Index

ClassID:

85659 ⎘

C01F7/20 - CPC Classification

Classification description:

Compounds of aluminium; Aluminium oxide; Aluminium hydroxide; Aluminates Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts

Sub-classes:

C01F7/22 » with halides {or halogen acids} 17
C01F7/24 » with nitric acid or nitrogen oxides 6
C01F7/26 » with sulfuric acids or sulfates 5
C01F7/28 » with sulfurous acid 0

Recent Application in this class:

20260002231

2026-01-01

COMBINED TREATMENT METHOD FOR LATERITE NICKEL ORE HYDROMETALLURGICAL SLAG AND PHOSPHATING SLAG

20240327233

2024-10-03

PROCESS FOR PRODUCING HIGH PURITY ALUMINIUM MATERIALS

20230117406

2023-04-20

Sheet-Like Pseudoboehmite

20220349025

2022-11-03

Methods for recovering metals using oxalate compounds

20200207634

2020-07-02

Synthesis of M13 clusters from aluminum and gallium mineral polymorphs

20190062174

2019-02-28

Process for making high-purity aluminum oxide

20180208477

2018-07-26

Synthesis of M13 clusters from aluminum and gallium mineral polymorphs

20180044196

2018-02-15

Process for making high-purity aluminum oxide

20170036920

2017-02-09

Method for recovering alkali and aluminum in course of treatment of bayer red mud by using calcification-carbonation method

#10

20100129279

2010-05-27

Extraction and Purification of Minerals From Aluminium Ores