Apparatus for controlling the degree of causticization in the pr

Details Apparatus for controlling the degree of causticization in the pr Apparatus for controlling the degree of causticization in the pr

1980-02-11

1982-01-19

Kratz, Peter F.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Automatic analytical monitor and control of industrial process

162240, 422185, D21C 712

Patent

active

043116663

ABSTRACT:
Apparatus is provided for controlling the degree of causticization of white liquor in its preparation from green liquor by the addition of calcium oxide, which comprises determining the sodium carbonate concentration of green liquor fed to the causticization; determining the sodium carbonate concentration of white liquor resulting from the causticization; and controlling the degree of causticization within a predetermined range while taking both sodium carbonate concentrations into account, so as to maintain the degree of causticization of the white liquor within the range despite variations in sodium carbonate concentration of the green liquor and variations in calcium oxide content of the calcium oxide added for causticization.

REFERENCES:
patent: 3102789 (1963-09-01), Pirsh et al.
patent: 3955924 (1976-05-01), Northmore et al.
patent: 4053281 (1977-10-01), Carter
patent: 4063891 (1977-12-01), Becker et al.
Chemical Recovery in Alkaline Pulping Process, Whitney (Editor), TAPPI Monograph Series No. 32, 1968, pp. 121-124, 65, 66, 113, 114.
Jacobi et al., "Control of White Liquor Preparation", ABIPC vol. 47, No. 4, abstract 3423 (M), 1976.
Urner, "Computer Control in the Recovery of the Kraft Process", TAPPI/Nov. 1978, vol. 61, No. 11, pp. 57-61.

Affiliated with

Also associated with

Rating

Apparatus for controlling the degree of causticization in the pr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for controlling the degree of causticization in the pr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling the degree of causticization in the pr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1914914