Method for preparing ultrapure water

Details Method for preparing ultrapure water Method for preparing ultrapure water

1991-11-22

1994-03-08

Cintins, Ivars

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210664, 210669, 210686, 210900, C02F 142

Patent

active

052924394

ABSTRACT:
A method for preparing an ultrapure water, from which impurities including inorganic salts, organic substances, fine particles and microorganisms are removed, by treatment including an ion exchange treatment, which comprises using an ion exchange resin comprising a copolymer of a polyvinyl compound and a monovinyl aromatic compound which may contain a monovinyl aliphatic compound, as the matrix, at least in a mixed bed ion exchange treatment of the ion exchange treatment, said ion exchange resin used comprising at least a regenerated form ion exchange resin A eluting an organic compound of a molecular weight of less than 3,000 but substantially not eluting an organic compound of a molecular weight of not less than 3,000 when dipped in a hot water at 50.degree. C. for 7 days.

REFERENCES:
patent: 3276458 (1966-10-01), Iversen et al.
patent: 3870033 (1975-03-01), Faylor et al.
patent: 4430226 (1984-02-01), Hegde et al.
patent: 4548716 (1985-10-01), Boeve

Affiliated with

Also associated with

Rating

Method for preparing ultrapure water does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for preparing ultrapure water, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing ultrapure water will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-150973