Method for treating photographic process waste liquor through co

Details Method for treating photographic process waste liquor through co Method for treating photographic process waste liquor through co

1990-04-23

1991-01-15

Manoharan, Virginia

Concentrating evaporators

Processes

Involving waste liquid

159 161, 202181, 203 1, 203 49, 203100, 203DIG7, 203DIG18, 354300, B01D 100, B01D 342

Patent

active

049851187

ABSTRACT:
A method for treating photographic process waste liquor by evaporation to concentrat the waste liquor. The method includes evaporating with a heating device which has a heat density of about 17.2 kcal/cm.sup.2 or less; and intermittently feeding the waste liquor to maintain a predetermined liquid level in the vessel. By controlling the heating and/or the liquid level in the evaporation vessel, odors are controlled while efficiency is maintained.

REFERENCES:
patent: 2027115 (1936-01-01), Oman et al.
patent: 3869383 (1975-03-01), Shimamura et al.
patent: 3904392 (1975-09-01), Van Ingen et al.
patent: 3910812 (1975-10-01), Kaneko et al.
patent: 3995298 (1976-11-01), Van deputte et al.
patent: 4017421 (1977-04-01), Othmer
patent: 4043907 (1977-08-01), Shimamura et al.
patent: 4062031 (1977-12-01), Schroter
patent: 4073705 (1978-02-01), Torikai et al.
patent: 4319826 (1982-03-01), von dem Bussche et al.
patent: 4323424 (1982-04-01), Secunda et al.
patent: 4612090 (1986-09-01), Ellis, Jr.
patent: 4640769 (1987-02-01), Wemhoff
patent: 4724044 (1988-02-01), Weishaar et al.
patent: 4735728 (1988-04-01), Wermhoff
patent: 4755843 (1988-07-01), Foley
Morton, "Laboratory Technique in Organic Chemistry", 1st Ed., 1938, pp. 104 & 105.
Patent Abstracts of Japan, vol. 12m Bi, 32 (P-661) [2879], 30th Jan. 1988, p. 109, P 661; & JP-A-62 184 459 (Konishiroku Photo Ind. Co., Ltd.), 12-08-87.
Patent Abstracts of Japan, vol. 12m Bi, 32 (P-661) [2879], 30th Jan. 1988, p. 109, p. 661; & JP-A-62 184 459 (Konishiroku Photo Ind. Co., Ltd.), 12-08-87.

Affiliated with

Also associated with

Rating

Method for treating photographic process waste liquor through co 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 treating photographic process waste liquor through co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for treating photographic process waste liquor through co will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-53453