Production method of high-content and low-trimethyl ester spermine
A technology of trimethylspermine and a production method, which is applied to the production field of high-content and low-trimethylspermine, can solve problems such as single structure, and achieve the effects of simplifying material components, reducing scaling probability and solving safety problems.
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Embodiment 1
[0015] The production method of high-content low trimethyl ester spermine of the present invention, implementation steps are as follows:
[0016] (1) Crude amine water washing: the crude amine is washed in advance. The crude amine water washing method is to fully dissolve and mix the crude amine and water through the transfer pump according to the flow ratio of 1:2, and then enter the oil-water separator for layer separation. , to obtain the crude aminated product after water washing and stratification; and extracting and recovering the aminated product dissolved in the waste water after the crude amine was washed with water.
[0017] (2) Precipitation of high-vacuum unit: the crude amine after washing and stratification is pumped to the high-level tank of crude amine through the preparation pump, and then the crude amine is sent to the evaporator for desolventization; the crude amine entering the evaporator is adjusted The chemical flow rate is 1300L / h, the vacuum degree in t...
Embodiment 2
[0020] The process of the method is the same as in Example 1, the difference is: (1) Crude amine washing: the crude amine is washed in advance, and the crude amine is washed by fully dissolving the crude amine and water through the transfer pump according to the flow ratio of 1:2.5 After mixing, it enters the oil-water separator and separates in layers; (2) Precipitation of the high vacuum unit: adjust the flow rate of the crude aminate entering the evaporator to 1400L / h, control the liquid temperature of the material in the evaporator to 124°C, and control the air temperature to 90 ℃.
[0021] The indicators of spermine after precipitation are as follows: main content of spermine > 97.5%, water content < 0.2%, trimethyl ester content < 2.2%, ammonium chloride content < 0.1%.
Embodiment 3
[0023] The method process is the same as the first embodiment, the difference is that:
[0024] (1) Crude amine water washing: pre-wash the crude amine with water. The crude amine water washing method is to fully dissolve and mix the crude amine and water through the transfer pump according to the flow ratio of 1:3, then enter the oil-water separator and separate them in layers (2) Precipitation of high-vacuum unit: adjust the flow rate of the crude aminate entering the evaporator to 1500L / h, control the liquid temperature of the material in the evaporator to 126°C, and control the air temperature to 95°C.
[0025] The indicators of spermine after precipitation are as follows: main content of spermine > 97.2%, water content < 0.3%, trimethyl ester content < 2.1%, ammonium chloride content < 0.4%.
[0026] The working principle of the present invention is as follows:
[0027] (1) Washing of crude amine: Since the production of crude amine is accompanied by the generation of a ...
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