Method of dye removal for the textile industry

Details Method of dye removal for the textile industry Method of dye removal for the textile industry

1997-08-05

2000-07-25

Fortuna, Ana

Liquid purification or separation

Processes

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

210651, 210653, 210652, B01D 6100

Patent

active

060933259

ABSTRACT:
The invention comprises a method of processing a waste stream containing dyes, such as a dye bath used in the textile industry. The invention comprises using an inorganic-based polymer, such as polyphosphazene, to separate dyes and/or other chemicals from the waste stream. Membranes comprising polyphosphazene have the chemical and thermal stability to survive the harsh, high temperature environment of dye waste streams, and have been shown to completely separate dyes from the waste stream. Several polyphosplhazene membranes having a variety of organic substituent have been shown effective in removing color from waste streams.

REFERENCES:
patent: 4477656 (1984-10-01), Longo et al.
patent: 4576806 (1986-03-01), Juneau
patent: 4749489 (1988-06-01), Allen et al.
patent: 4783202 (1988-11-01), Kraus et al.
patent: 5022996 (1991-06-01), McCaffrey et al.
patent: 5066398 (1991-11-01), Soria et al.
patent: 5238569 (1993-08-01), Soria et al.
patent: 5266207 (1993-11-01), Boye et al.
patent: 5451322 (1995-09-01), Nelson et al.
Allen, et al., "Separation of Cr Ions from Co and Mn Ions by Poly(Bis(Phenoxy)Phosphazene) Membranes", Journal of Membrane Science, 33 (1987) pp. 181-189.
Cecille and Toussaint, Future Industrial Prospects of Membrane Processes, article by Gaeta et al., "A Study on Membrane Technology for the Textile Industry: Membrane Preparation and Characterization", pp. 19, 202, 1989.
Peterson et al., "Chemical Separations Using Shell and Tube Composite Polyphosphazene Membranes", Separation Science and Technology, 30(7-9), pp. 1573-1587, 1995.
"Dyes, Environmental Chemistry", Kirk-Othmer Encyclopedia of Chemical Technology, Fourth Edition, vol. 8, pp. 753-773.
"Elastomers, Synthetic (Phosphazenes)", Kirk-Othmer (Supra), pp. 1022-1031.
"Inorganic High Polymers", Kirk-Othmer (Supra), vol. 14, pp. 504-513.

Affiliated with

Also associated with

Rating

Method of dye removal for the textile industry 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 of dye removal for the textile industry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of dye removal for the textile industry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1334249