C01B25/235 - CPC Classification Index

ClassID:

84834 ⎘

C01B25/235 - CPC Classification

Classification description:

Phosphorus; Compounds thereof; Oxyacids of phosphorus; Salts thereof; Phosphoric acid; Purification; Stabilisation; Concentration Clarification; Stabilisation to prevent post-precipitation of dissolved impurities

Recent Application in this class:

20190177164

2019-06-13

POLYMERIC MICROPARTICLES AS FILTRATION AND/OR CLARIFYING AIDS IN PHOSPHORIC ACID PRODUCTION

20180179062

2018-06-28

Primary amine-containing polymers useful as scale inhibitors

20170057822

2017-03-02

Polymeric microparticles as filtration and/or clarifying aids in phosphoric acid production

20150225241

2015-08-13

Primary amine-containing polymers useful as scale inhibitors

20120171099

2012-07-05

Phosphoric acid production gypsum filtration flocculant pre-dilution (make down) with post-filtration phosphoric acid

20090294372

2009-12-03

INHIBITION OF WATER FORMED SCALE IN ACID CONDITIONS