Ammonium Chloride For Sale Near Meam

Ammonium Chloride 

Ammonium chloride is also known as sal ammoniac. white crystals made by ammonia salts acting upon hydrochloric acid followed by crystallization. It was used as a halide in many processes, including the salted paper, albumen paper, albumen opaltype, and gelatin emulsion processes.It is also used as a thickener and as an additive in non-alcoholic toners. According to cosmetic formulators, that component provides the tingling or stinging sensation that some people associate with toners or aftershaves, and which, in regular toners, is usually provided by the alcohol content.It's use is the result of preference in formulation feel.

Production method

In gas-liquid phase synthesis, hydrogen chloride gas is added to the turbulence absorption tower from the bottom. It then comes into contact with the circulating mother liquor flowing from the overhead spray to generate chloride mother liquor containing saturated it. The chloride mother liquor is then directed into the reactor where it reacts with ammonia gas to form a saturated it solution. The solvents are sent to the cooling crystallizer and cooled to 30-45°C to precipitate supersaturated it crystals. That solution in the upper part of the crystallizer is cooled in the air cooler and then circulated back to the crystallizer. The crystal slurry in the lower part of the crystallizer is thickened using a thickener and then centrifuged to separate and obtain it. The reaction formula is:
HCl + NH3 → NH4Cl.

The centrifuged mother liquor is recycled by sending it to the turbulent absorption tower.
In the metathesis method, the mother liquor of this is added to a reactor and heated to 105°C. Ammonium sulfate and salt are added under stirring and the metathesis reaction is carried out at 117°C, resulting in the formation of an that solution and sodium sulfate crystals. The mixture is filtered to remove sulfuric acid and the resulting filtrate is sent to a cooling crystallizer and cooled to a temperature range of 32 to 35 ℃ for crystallization. The crystals of it are obtained by filtration and washed with four different concentrations (15～17°Bé,11～12°Bé,10°Bé,9.5～10°Bé) of that solution, ensuring that Fe is less than 0.008% and SO42- is less than 0.001%. After elution, use a solution to reform the crystals into a slurry. Put the slurry into a centrifuge for separation and dehydration. Then, dry the slurry with hot air to obtain industrial-grade this products. The reaction formula is
2NaCl + (NH4)2SO4 → 2NH4Cl + Na2SO4.
The mother liquor is sent to the metathesis reactor for recycling. The separated sodium should be disposed of properly.

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