There is disclosed a cyclic process for producing taurine from monoethanolamine comprising the steps of: (a) recovering monoethanolamine sulfate from an aqueous mother liquor solution; (b) reacting the monoethanolamine sulfate with sulfuric acid to form an aqueous solution comprised of monoethanolamine bisulfate; (c) heating the aqueous solution comprised of the monoethanolamine sulfate and optionally added monoethanolamine sulfate to yield 2-aminoethyl hydrogen sulfate ester; (d) reacting the ester with ammonium sulfite or an alkali sulfite to yield taurine and ammonium or alkali sulfate; (e) separating taurine and ammonium or alkali sulfate to give an aqueous mother liquor solution; and (f) recovering the monoethanolamine sulfate from the aqueous mother liquor solution and recycling to the monoethanolamine sulfate to step (b).

The present technology provides methods and processes of producing ammonium sulfate nitrate 1:2 double salts by combining ammonium sulfate solution, nitric acid and ammonia in an aqueous reaction mixture. The methods include reacting the aqueous reaction mixture, followed by removing water to form the ammonium sulfate nitrate 1:2 double salt.

The present technology provides methods and processes of producing ammonium sulfate nitrate 1:2 double salts by combining ammonium sulfate solution, nitric acid and ammonia in an aqueous reaction mixture. The methods include reacting the aqueous reaction mixture, followed by removing water to form the ammonium sulfate nitrate 1:2 double salt.

The present invention relates to methods for the production of an ammonium salt wherein sour water stripper gas is reacted with an aqueous medium and wherein the sour water stripper gas (SWSG) is obtained from stripping, preferably steam stripping, of sour water comprising organic compounds, wherein the sour water was submitted to a treatment T1 to reduce the concentration of organic compounds in the sour water before stripping. The present invention also relates to methods for the production of an ammonium salt wherein sour water stripper gas and (concentrated) ammonia are reacted with an aqueous medium such that the ratio (mol:mol) of the total amount of ammonia (NH.sub.3) provided by the sour water stripper gas stream to the total amount of ammonia (NH.sub.3) provided by the concentrated ammonia stream is at least 1:20. The present invention also relates to methods for the production of an ammonium salt wherein sour water stripper gas is reacted with an aqueous medium and wherein the total amount of acyclic C.sub.1-C.sub.9 saturated hydrocarbons comprised in the sour water stripper gas is less than 0.2 mol %.

The present invention relates to methods for the production of an ammonium salt wherein sour water stripper gas is reacted with an aqueous medium and wherein the sour water stripper gas (SWSG) is obtained from stripping, preferably steam stripping, of sour water comprising organic compounds, wherein the sour water was submitted to a treatment T1 to reduce the concentration of organic compounds in the sour water before stripping. The present invention also relates to methods for the production of an ammonium salt wherein sour water stripper gas and (concentrated) ammonia are reacted with an aqueous medium such that the ratio (mol:mol) of the total amount of ammonia (NH.sub.3) provided by the sour water stripper gas stream to the total amount of ammonia (NH.sub.3) provided by the concentrated ammonia stream is at least 1:20. The present invention also relates to methods for the production of an ammonium salt wherein sour water stripper gas is reacted with an aqueous medium and wherein the total amount of acyclic C.sub.1-C.sub.9 saturated hydrocarbons comprised in the sour water stripper gas is less than 0.2 mol %.

A process for producing a sulfamyl fluoride composition includes providing a solution comprising fluorosulfonic acid, urea and a solvent; reacting the solution at a reaction temperature from 80 C. to about 170 C. to produce a mixture including sulfamyl fluoride, bis(fluorosulfonyl) imide, ammonium fluorosulfate and the solvent; separating the ammonium fluorosulfate from the mixture; and separating the mixture into a sulfamyl fluoride composition and a recycle composition, the sulfamyl fluoride composition including a higher concentration of sulfamyl fluoride and bis(fluorosulfonyl) imide than the recycle composition. A mole ratio of the fluorosulfonic acid to the urea in the solution is from about 1.80:1 to about 2.00:1.