Desalinisation process for salt-containing water solution of levocarnitine
An aqueous solution and desalination technology, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve the problem of high consumption of auxiliary raw materials ammonia and deionized water, low concentration of levocarnitine in the eluent, and inorganic ammonium salt high content, to achieve the effects of low consumption of auxiliary raw materials, reduced desalination cost, and high yield
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Embodiment 1
[0023] The desalination method of saline levocarnitine aqueous solution has the following steps:
[0024] 1. Get the saline-containing levocarnitine aqueous solution, adjust the concentration of the saline-containing levocarnitine aqueous solution with water, make the levocarnitine weight concentration of the saline-containing levocarnitine aqueous solution be 6%~10%, obtain the salt-containing solution after dilution Levocarnitine aqueous solution;
[0025] 2. adjust the pH value of the diluted saline-containing levocarnitine aqueous solution with alkali, so that the pH value of the diluted saline-containing aqueous solution of levocarnitine is 6.5 to 7.5, and obtain the salt-containing levocarnitine aqueous solution after adjusting the pH value;
[0026] 3. After adjusting the pH value, filter the saline levocarnitine aqueous solution through a 600-800 mesh filter to separate impurities and obtain the saline levocarnitine filtrate;
[0027] 4. Desalting the salt-containing ...
Embodiment 2
[0033] The desalination method of saline levocarnitine aqueous solution has the following steps:
[0034] 1. Get the saline levocarnitine aqueous solution with hydrochloric acid hydrolysis in levocarnitine synthetic process, adjust the concentration of saline levocarnitine aqueous solution with water, make the levocarnitine weight concentration of saline levocarnitine aqueous solution 6.1%, taking levocarnitine weight concentration is 6.1% saline levocarnitine aqueous solution 2000Kg, obtains the saline levocarnitine aqueous solution after dilution;
[0035] 2. adjust the pH value of the diluted saline levocarnitine aqueous solution with ammonia water, so that the pH value of the diluted saline levocarnitine aqueous solution is 6.8, and obtain the saline levocarnitine aqueous solution after adjusting the pH value;
[0036] 3. After adjusting the pH value, filter the saline levocarnitine aqueous solution through a 600-800 mesh filter to separate impurities and obtain the saline...
Embodiment 3
[0043] The desalination method of saline levocarnitine aqueous solution has the following steps:
[0044] 1. Get the saline levocarnitine aqueous solution with hydrochloric acid hydrolysis in levocarnitine synthetic process, adjust the concentration of saline levocarnitine aqueous solution with water, make the levocarnitine weight concentration of saline levocarnitine aqueous solution 8.2%, taking levocarnitine weight concentration is 5000Kg of saline levocarnitine aqueous solution of 8.2%, obtains the saline levocarnitine aqueous solution after dilution;
[0045] 2. adjust the pH value of the diluted saline levocarnitine aqueous solution with ammonia water, so that the pH value of the diluted saline levocarnitine aqueous solution is 7.4, and obtain the saline levocarnitine aqueous solution after adjusting the pH value;
[0046] 3. After adjusting the pH value, filter the saline levocarnitine aqueous solution through a 600-800 mesh filter to separate impurities and obtain the ...
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