Title:
HIGH-BASICITY ALUMINUM CHLORIDE SOLUTION SUITABLE FOR WATER TREATMENT THROUGH MEMBRANE FILTRATION
Document Type and Number:
Japanese Patent JP2023181905
Kind Code:
A
Abstract:
To provide a water treatment coagulant that is used for membrane filtration and exhibits superior fouling prevention effects when compared to the high-basicity aluminum chloride solution described in Japanese Unexamined Patent Application Publication No. 2009-203125.SOLUTION: A high-basicity aluminum chloride solution satisfies the following requirements 1-3. Requirement 1: the high-basicity aluminum chloride solution has a basicity ranging from 70% to 80%. Requirement 2: SO4/Al2O3 (molar ratio) in the high-basicity aluminum chloride solution ranges from 0 to 0.30. Requirement 3: when the high-basicity aluminum chloride solution is subjected to a predetermined filtrate aluminum concentration test to measure an aluminum concentration in the filtrate, the aluminum concentration is 0.40 mg/L or less.SELECTED DRAWING: Figure 6
Inventors:
YAMAGUCHI MASANORI
Application Number:
JP2022095289A
Publication Date:
December 25, 2023
Filing Date:
June 13, 2022
Export Citation:
Assignee:
TAKI CHEMICAL
International Classes:
B01D21/01; C01F7/57; C02F1/44
Domestic Patent References:
| JP2012086149A | 2012-05-10 | |||
| JP2009203125A | 2009-09-10 | |||
| JP2019206469A | 2019-12-05 |