Method for separating natural phytol from chlorophyll unsaponifiable matters
A technology for saponification and phytol, applied in the field of separation of natural phytol, can solve the problems of only reaching 15kPa-20kPa, high requirements for heating equipment, and difficulty in obtaining high purity, and achieves reduction of equipment investment, improvement of competitiveness, Energy saving effect
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Embodiment 1
[0024] Such as figure 1 Shown, a kind of method for separating natural phytol from chlorophyll unsaponifiable matter, comprises the following steps:
[0025] A, carry out saponification separation to pasty chlorophyll;
[0026] B, chromatographic purification;
[0027] C. Scraper film evaporation;
[0028] D. Short-range molecular distillation.
[0029] In step A, first take the pasty chlorophyll, add 500L of 45% NaOH solution and heat up to 50°C to make it pH=12-14, then stir it at a speed of 80r / min for 75 minutes to undergo saponification reaction, and then Add 2500L acetone to the solution and keep the temperature at 40°C, stir for 30 minutes to promote its dissolution, then let it stand for 30 minutes, the saponified crystals will precipitate and sink to the bottom of the tank, and the saponified crystals will be filtered out by filtration, so as to obtain no Saponified acetone solution.
[0030] After carrying out step A, the acetone solution of 800L of acetone is a...
Embodiment 2
[0035] The difference between this example and Example 1 is that in step A, first take the pasty chlorophyll, add 500L of 40% NaOH solution and heat up to 60°C to make its pH=12-14, and then add 120r / Stir at a speed of min for 60 minutes for saponification reaction, then add 3000L acetone to the solution and keep the temperature at 50°C, stir for 20 minutes at the same time to promote its dissolution, then let it stand for 30 minutes, the saponified product crystallizes and sinks to the bottom of the tank , The saponifiable crystals are filtered out by filtration to obtain an unsaponifiable acetone solution.
[0036] After carrying out step A, add the acetone of 500L to rinse again after the saponifiable crystal obtained after filtering, and repeat the process of filtering and washing 4 times, and finally combine the unsaponifiable acetone solution obtained after the washing with the step The unsaponifiable acetone solutions in A were combined.
[0037] In step B, the unsapo...
Embodiment 3
[0041] The difference between this example and examples 1 and 2 is that in step A, first take the pasty chlorophyll, add 500L of 50% NaOH solution and heat up to 40°C to make its pH=12-14, and then add 60r Stir at a speed of 1 / min for 90 minutes for saponification reaction, then add 2000L acetone to the solution and keep the temperature at 30°C, stir for 40 minutes at the same time to promote its dissolution, then let it stand for 30 minutes, the saponified product crystallizes and settles in the tank At the bottom, the saponifiable crystals were filtered out by filtration to obtain an unsaponifiable acetone solution.
[0042] After carrying out step A, add the acetone of 1000L of acetone again to rinse the saponifiable matter crystal obtained after filtering out, and repeat the process of filtering out and washing for 2 times, and finally combine the unsaponifiable matter acetone solution obtained after the washing with step The unsaponifiable acetone solutions in A were comb...
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