Composite semipermeable membrane, and production process...

Details Composite semipermeable membrane, and production process... Composite semipermeable membrane, and production process...

2007-10-09

2007-10-09

Menon, Krishnan S. (Department: 1723)

Liquid purification or separation

Filter

Material

C210S500370, C210S650000, C210S652000, C210S490000

Reexamination Certificate

active

10865888

ABSTRACT:
A composite semipermeable membrane which satisfies the following relationship when seawater at 25° C. having a pH of 6.5, a boron concentration of 5 ppm and a TDS concentration of 3.5% by weight is permeated under an operation pressure of 5.5 MPa: Boron removal ratio (%)≧95−4×membrane permeation flow rate (m3/m2·day).

REFERENCES:
patent: 4769148 (1988-09-01), Fibiger et al.
patent: 4859384 (1989-08-01), Fibiger et al.
patent: 5051178 (1991-09-01), Uemura et al.
patent: 5160619 (1992-11-01), Yamaguchi et al.
patent: 5336409 (1994-08-01), Hachisuka et al.
patent: 5755964 (1998-05-01), Mickols
patent: 6368507 (2002-04-01), Koo et al.
patent: 0 014 054 (1980-08-01), None
patent: 0 313 354 (1989-04-01), None
patent: 0 361 092 (1990-04-01), None
patent: 1 136 116 (2001-09-01), None
patent: 1-180208 (1989-07-01), None
patent: 5-92128 (1993-04-01), None
patent: A 6-39254 (1994-02-01), None
patent: A 6-254364 (1994-09-01), None
patent: A 11-19493 (1999-01-01), None
patent: WO 97/27935 (1997-08-01), None
patent: WO97/27935 (1997-08-01), None

Affiliated with

Also associated with

Rating

Composite semipermeable membrane, and production process... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composite semipermeable membrane, and production process..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite semipermeable membrane, and production process... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3848405