Process for the manufacture of potassium nitrate with co-product

Chemistry of inorganic compounds – Nitrogen or compound thereof – Oxygen containing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

423398, 423390, C01D 904

Patent

active

043649149

ABSTRACT:
The present invention relates to a process for the manufacture of potassium nitrate with co-production of relatively concentrated aqueous solution of hydrochloric acid.
According to the invention, potassium chloride and nitric acid are reacted in the medium of an organic solvent selected from butanols and pentanols. The solution obtained after the separation of the resulting potassium nitrate, containing hydrochloric acid together with nitric acid and said organic solvent, is subsequently washed thus resulting an aqueous solution of hydrochloric acid which contains nitric acid. The nitric acid is extracted by an organic solvent selected from organic esters of phosphoric acid, ketones having five to ten carbon atoms and straight or cyclic polyethers having molecular weight in the range of 100 to 1000 and polyalkylene glycols which are slightly miscible in water and having molecular weight in the range of 1000 to 3000, or mixtures thereof, preferably in the presence of an organic diluent. The remaining brine consists of a substantially nitrate-free hydrochloric acid. The NO.sub.3.sup.- -loaded solvent is washed, the nitric acid as well as the organic solvent being respectively recycled in the process.
The process saves appreciable amounts of nitric acid, co-producing hydrochloric acid which can be utilized without any further concentrating step.

REFERENCES:
patent: 2902341 (1959-09-01), Baniel et al.
Marcus et al., "Ion Exchange & Solv. Ext. of Metal Complexes", Wiley-Intersci., NY 1970, pp. 590-597, 600-601, 605-607.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process for the manufacture of potassium nitrate with co-product 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 the manufacture of potassium nitrate with co-product, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the manufacture of potassium nitrate with co-product will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-405860

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.