Purification method of highly pure organic solvent n-propanol
An organic solvent and purification method technology, which is applied in the field of purification of high-purity organic solvent n-propanol, can solve problems such as difficult to remove, low amount of impurities, and no published patent documents, so as to reduce energy consumption, operate stably, and save manpower Effect
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Embodiment 1
[0020] A kind of purification method of high-purity organic solvent n-propanol, the steps are as follows:
[0021] ⑴ Raise the raw material n-propanol (content is about 99.1%) above the adsorption column, and the n-propanol raw material flows through the adsorption column at a speed of 40mL / min. The adsorption column is 1.6M high and 4.2cm in diameter. The amount of activated carbon adsorbent inside is 4 / 5 of the column height, and the particle size of activated carbon is 0.4mm~0.8mm. In the adsorption column, n-propanol is in full contact with the activated carbon adsorbent to absorb organic impurities with high ultraviolet rays. After the adsorption effluent test is nearly qualified (see Table 1 for specific technical index requirements), enter the next step to further purify and remove the fraction before adsorption.
[0022] (2) Put the n-propanol flowing out of the above-mentioned adsorption column into the drying column, the column height is 1.6M, and the diameter is 4....
Embodiment 2
[0026] A kind of purification method of high-purity organic solvent n-propanol, the steps are as follows:
[0027] ⑴ Raise the raw material n-propanol (content is about 99.1%) to the top of the adsorption column, and the n-propanol raw material is adsorbed at a speed of 100mL / min. The adsorption column is 1.6M high and 4.2cm in diameter. The amount of activated carbon adsorbent inside is 4 / 5 of the column height, and the particle size of activated carbon is 0.4mm~0.8mm. After the adsorption liquid is nearly qualified, enter the next step to further purify and remove the pre-adsorption fraction with high impurities;
[0028] (2) Put the effluent from the above-mentioned adsorption column into the drying column, the tower height is 1.6M, and the diameter is 4.2cm. Fill it with calcium hydride, and measure the water content of n-propanol after drying. The water content is controlled at ≤0.05%. After the water content is qualified, enter the next step Operation; when the moisture...
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