Preparation method and application of cystine manganese
A technology of manganese cystine and cystine, which is applied in the field of preparation of amino acid complexes, can solve problems such as the undiscovered preparation method of manganese cystine, achieve good application prospects, simplify the process, and reduce energy consumption
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Embodiment 1
[0039] A manganese cystine (molecular formula is C 6 h 10 N 2 o 4 S 2 Mn H 2 O) preparation method, comprises the following steps:
[0040] Turn on stirring, at 2m 3 Add 400L of 95% ethanol to the water, then add 218.5Kg of sodium carbonate with a purity of 98%, add 490.4Kg of cystine with a purity of 98% after stirring and dissolving, stir at room temperature until no more bubbles emerge, then heat up to 70°C, add 348.4 Kg of manganese sulfate monohydrate with a purity of 98% was reacted for 1 hour. After the reaction was completed, the reaction system was cooled to room temperature, crystallized, filtered, and flash-dried to obtain 606.7 Kg of manganese cystine.
[0041] The measured content of cystine in manganese cystine products is 75.5%, Mn 2+ It is 17.4%, the dehydration rate at 180°C is 5.7%, and the dehydration rate at 104°C is 1.2%, that is, the purity is 98.6%, and the yield is 96.1% in terms of cystine, which is the ratio of cystine and manganese. The molar...
Embodiment 2
[0043] A manganese cystine (molecular formula is C 6 h 10 N 2 o 4 S 2 Mn H 2 O) preparation method, comprises the following steps:
[0044] Turn on stirring, at 2.5m 3 Add 310L of propanol to the water, then add 349.7Kg of sodium bicarbonate with a purity of 98%, then add 8.4L of propenyl alcohol, stir and dissolve, add 490.4Kg of cystine with a purity of 98%, and stir at room temperature until no more bubbles appear. After leaving, heat up to 60°C, add 341.5Kg of manganese sulfate monohydrate with a purity of 98%, and react for 1.8 hours. After the reaction is completed, cool the reaction system to room temperature, crystallize, press filter, and flash dry to obtain manganese cystine 640.8 Kg.
[0045] The measured content of cystine in manganese cystine products is 72.8%, Mn 2+ It is 16.8%, the water loss rate at 180°C is 5.5%, and the water loss rate at 104°C is 4.8%, that is, the purity is 95.1%, and the yield is 98.9% in terms of manganese, that is, the molar rati...
Embodiment 3
[0047] A manganese cystine (molecular formula is C 6 h 10 N 2 o 4 S 2 Mn H 2 O) preparation method, comprises the following steps:
[0048] Turn on stirring, at 3m 3 Add 300L of isopropanol to the water, then add 287.7Kg of potassium carbonate with a purity of 98%, add 3.3L of propenyl alcohol, stir to dissolve, add 490.4Kg of cystine with a purity of 98%, and stir at room temperature until no more bubbles emerge After the temperature was raised to 60°C, 244.0 Kg of manganese chloride with a purity of 98% was added and reacted for 1.8 hours. After the reaction was completed, the reaction system was cooled to room temperature, crystallized, filtered, and flash-dried to obtain 585.8 Kg of manganese cystine.
[0049] The measured content of cystine in manganese cystine products is 73.8%, Mn 2+ It is 17.0%, the dehydration rate at 180°C is 5.5%, and the dehydration rate at 104°C is 3.5%, that is, the purity is 96.4%, and the yield is 95.5% in terms of manganese, which is th...
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