Full automatic soap saponification machine Supplier of Soap Manufacturing Plant

100-300kg/h Oil grease saponification tank Fat saponification pot soap noodles production line

Soap raw materials start from grease and generally go through the following processes.

1. Saponification

The oil reacts with the base to produce the higher fatty acid sodium and glycerin (and some water), which is one step in the process of making soap.

In the saponification pot, fully stirred and heated, the grease layer gradually reduced, the liquid does not appear stratified, the saponification reaction is completed.

2. Salting out

In the closed soap, add salt or saturated salt water to separate the soap from the dilute glycerin water. The lower concentration at which the soap precipitates is called the salting-out concentration. After the closed soap glue is salted out, the upper soap is called soap granules; The lower layer of salted glycerin water is drained from the bottom of the soap pan to recover the glycerin.

3 .Wash

After separating the waste liquid, add water and steam to boil the soap granules, so that it becomes a uniform soap glue from the dissolving state, and washes out the remaining glycerin, pigment and impurities.

4. Alkali analysis

The glycerin, salt, pigment and impurities in the soap grains were further washed out by alkali analysis in order to saponify the remaining oil in the soap grains. The lower alkali concentration that precipitates out completely is called the alkali water concentration. Adjust enough to split the soap into upper and lower soap phases. The upper layer is the pure soap base, and the lower layer is the soap foot. The soap foot is dark in color and has many impurities, which are generally reused in the next pot of alkali analysis.

5. The saponification vacuum drying system is a high-temperature liquid soap base (fatty acid Na) formed by the interaction of animal and vegetable oils (the main component fatty acids) with alkali, and then glycerin, additives and other ingredients are added at the same time in the process, and then the soap base is changed from liquid to flake solid under the vacuum of the vacuum dryer due to the rapid evaporation of water, and the soap base is squeezed and ground by the refining machine to become soap granules.