Process for producing hydrogen chloride and ammonia
AssigneeCentral Glass Company, Limited
InventorsHiromi Sasaki, Yoshiyuki Takahara
Life of this patent
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Abstract
A process for producing hydrogen chloride and ammonia, comprising the steps of carrying out the reaction of ammonium chloride with ammonium hydrogen sulfate in the state of molten salt to produce hydrogen chloride, and heating the reaction system at the above-mentioned reaction carrying step at a temperature of 300.degree. C. or higher to produce ammonia gas, thereby hydrogen chloride and ammonia can be obtained in high yields, overcoming problems encountered in conventional corresponding processes.
Claims16
A process for producing hydrogen chloride and ammonia, comprising the following steps of:
- reacting ammonium chloride with molten ammonium hydrogen sulfate to produce hydrogen chloride gas;
- heating the resulting reaction mixture at a temperature of 280.degree. C. or higher to produce ammonia gas;
- and adding at least one alkali metal sulfate during said reacting or heating step.
A process for producing hydrogen chloride and ammonia, comprising the following steps of:
- reacting ammonium chloride with molten ammonium hydrogen sulfate to produce hydrogen chloride gas;
- adding at least one alkali metal sulfate during said reacting step;
- and
- heating the resulting reaction mixture at a temperature of 280.degree. C. or higher to produce ammonia gas.
A process for producing hydrogen chloride and ammonia, comprising the following steps of:
- reacting ammonium chloride with molten ammonium hydrogen sulfate to produce hydrogen chloride gas;
- heating the resulting reaction mixture at a temperature of 280.degree. C. or higher to produce ammonia gas;
- and
- adding at least one alkali metal sulfate during said heating step.
A process for producing hydrogen chloride and ammonia, comprising the following steps of:
- reacting ammonium chloride with molten ammonium hydrogen sulfate to produce hydrogen chloride gas;
- adding at least one alkali metal sulfate during said reacting step, wherein the mol ratio of ammonium chloride to ammonium hydrogen sulfate to said at least one alkali metal sulfate is 1.0:1.5-10:
- not more than 1.0;
- and
- heating the resulting reaction mixture at a temperature of 280.degree. C. of higher to produce ammonia gas.
Dependencies are inferred from the claim text.