Epoxy modified water clarifiers

Details Epoxy modified water clarifiers Epoxy modified water clarifiers

1992-05-13

1993-09-21

Tsang, Cecilia

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544389, 544401, 210708, 210727, 210728, 210729, 210735, 210764, 252180, 252344, 252358, 558232, 558233, 558235, 558236, 558237, C07D24104, C07D29500, C07D33300, B01D 1704

Patent

active

052470873

ABSTRACT:
Dithiocarbamic salts made from the reaction products of certain polyamines and epoxides have been found to be useful to clarify water, particularly the oil-in-water emulsions which accompany crude oil production. The water clarification may be accomplished by demulsification or flocculation. The polyamine reaction products themselves are novel and may have the structure ##STR1## where R" is selected from the group consisting of the structure --R--NH.sub.2 and ##STR2## where R is selected from the group consisting of straight, branched or cyclic alkylene moieties; arylene moieties; substituted straight, branched or cyclic alkylene moieties; substituted arylene moieties or mixtures thereof; and where R' is

REFERENCES:
patent: 1788632 (1931-01-01), Powers
patent: 2457209 (1948-12-01), Clark
patent: 2589209 (1952-03-01), Kardos
patent: 3753931 (1973-08-01), Raspanti
patent: 3876550 (1975-04-01), Holubec
patent: 4689177 (1987-08-01), Thompson et al.
patent: 4826625 (1989-05-01), Thompson et al.
patent: 4855060 (1989-08-01), Durham et al.
patent: 4864075 (1989-09-01), Thompson et al.
patent: 4956099 (1990-09-01), Thompson et al.
patent: 5006274 (1991-04-01), Durham et al.
patent: 5013451 (1991-05-01), Thompson et al.
patent: 5019274 (1991-05-01), Thompson et al.
patent: 5026483 (1991-06-01), Thompson et al.
A. M. Gaudin, Flotation, McGraw-Hill, New York, 1957, pp. 182-183 and 209-211.
T. Kitson, "The Dithiocarbamates--Interesting, Versatile and Neglected", Education in Chemistry, Mar. 1985, pp. 43-45.
Chemical Abstracts 104(86):23816a (1986).
S. Gutcho, Waste Treatment with Polyelectrolytes and Other Flocculants, Noyes Data, Park Ridge, N.J., 1977, pp. 81-82 and 96-98.
Chemical Abstracts 112(90):41931d (1990).
F. J. Kenney, "Use of Surfactants in Mineral Flotation", Industrial Applications of Surfactants, D. R. Karsa, Ed., Royal Society of Chemisty, Cambridge, England, 1990, pp. 369-370.

Affiliated with

Also associated with

Rating

Epoxy modified water clarifiers does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1051496