C01D1/22 - CPC Classification Index

ClassID:

85493 ⎘

C01D1/22 - CPC Classification

Classification description:

Oxides or hydroxides of sodium, potassium or alkali metals in general; Hydroxides; Preparation by reacting oxides or hydroxides with alkali metal salts with carbonates or bicarbonates

Recent Application in this class:

20230054645

2023-02-23

DHSV SCALE REMOVAL METHOD IN THE PRODUCTION STRING

20230051352

2023-02-16

PROCESS FOR SOLUBILIZING CALCIUM CARBONATE TO OBTAIN A SOLID COMPOUND AND AN ALKALINE LIQUID SOLUTION

20210070620

2021-03-11

Process for producing a concentrated aqueous sodium hydroxide solution

20200131045

2020-04-30

Treatment method for reducing carbon dioxide emission of combustion exhaust gas

20170183237

2017-06-29

PROCESS FOR TREATING A SODIUM CARBONATE PURGE

20150132203

2015-05-14

Process for treating a sodium carbonate purge

20140271379

2014-09-18

Recovering a caustic solution via calcium carbonate crystal aggregates

20120282528

2012-11-08

Method for preparing positive active material for lithium ion secondary battery, positive active material prepared thereby, and lithium ion secondary battery including the same

20120234728

2012-09-20

Heavy oil conversion process with in-situ potassium sulfide generation

#10

20110147274

2011-06-23

Regeneration of alkali metal reagent

#11

20060127298

2006-06-15

Feeding device and process and feeding system which utilize the feeding device

#12

17937623

2025-10-07

Process for treating a sodium carbonate purge