Process for separating sulphur in the form of hydrogen sulphide

Details Process for separating sulphur in the form of hydrogen sulphide Process for separating sulphur in the form of hydrogen sulphide

1974-10-16

1977-09-20

Rutledge, L. Dewayne

Chemistry of inorganic compounds

Sulfur or compound thereof

Binary compound

423422, 423428, C01B 1716

Patent

active

040497879

ABSTRACT:
The invention relates to a process for separating hydrogen sulphide from clarified green liquor, including precarbonating green liquor with a carbon dioxide rich gas, adding alkali bicarbonate to the precarbonated green liquor and stripping hydrogen sulphide therefrom forming simultaneously alkali carbonate, and preparing the alkali bicarbonate used in the process from the alkali carbonate formed. The process of the invention is carried out by performing the hydrogen sulphide stripping without crystallizing the alkali carbonate formed, preparing the alkali bicarbonate partly from alkali carbonate-alkali sulphide solution obtained in the precarbonation step and partly from the non-crystallized alkali carbonate solution, feeding at least a portion of the alkali carbonate -- alkali sulphide solution through the carbonation step, and passing the carbon dioxide rich gas first through the carbonation step and thereafter through the precarbonation step.

REFERENCES:
patent: 2675297 (1954-04-01), Gray
patent: 2864669 (1958-12-01), Ahlborg et al.
patent: 3508863 (1970-04-01), Kiminki
patent: 3826710 (1974-07-01), Anderson
patent: 3841961 (1974-10-01), Saiha
Lange, H. B.; et al; Tappi, vol. 58, No. 2, Feb., 1975; pp. 122-126.
Romantschuk, A.; et al, Chemical Engineering, Sept. 21, 1970, pp. 138-140.

Affiliated with

Also associated with

Rating

Process for separating sulphur in the form of hydrogen sulphide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for separating sulphur in the form of hydrogen sulphide , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for separating sulphur in the form of hydrogen sulphide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-671600