Method for removing cobalt from reactant and extracting reactant
A compound and mixture technology, applied in the field of extracting triacetyl compounds, can solve the problems of loss of active ingredients, low cobalt enrichment, and affecting production cycle, etc., and achieve the effects of reducing resin loss, shortening production process, and high resin efficiency
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Embodiment 1
[0038] Get 40kg of diammonium hydrogen phosphate and dissolve it in 400kg of water. Stir, the synthesis solution containing triacetyl compound in the production process of etimicin sulfate is 25l / min (500L reaction solution is exhausted in 20 minutes) with flow rate, slowly sucks in the diammonium hydrogen phosphate solution. Continue to stir and draw in 12L of ammonium sulfide solution (reagent grade), and stir for 10 minutes after the pumping is complete. Then pump in 6kg of powdered activated carbon, stir and heat to 50°C to 60°C, and keep warm for 15 minutes. Press it into a flat plate filter to obtain a light yellow filtrate, and use an ammonium sulfide test solution to detect that there is no residual cobalt ion.
[0039] Extract according to extraction method 1: pass the filtrate with complete decobalt removal into the separation column equipped with ammonium type 001×7 strong acidic cation exchange resin for adsorption, after the adsorption is completed within 6 hours...
Embodiment 2
[0041] Get diammonium hydrogen phosphate 36kg and dissolve in 360kg water. Stir, the synthesis solution containing triacetyl compound in the production process of etimicin sulfate is 16l / min (500L reaction solution is exhausted in 30 minutes) with flow rate, slowly sucks in the diammonium hydrogen phosphate solution. Continue to stir and draw in 10L of ammonium sulfide solution (reagent grade), and stir for 10 minutes after the pumping is complete. Then pump in 6kg of powdered activated carbon, stir and heat to 50°C to 60°C, and keep warm for 15 minutes. Press it into a flat plate filter to obtain a light yellow filtrate, and use an ammonium sulfide test solution to detect that there is no residual cobalt ion.
[0042] Extract according to extraction method 1: pass the filtrate with complete decobalt removal into the separation column equipped with ammonium type 001×7 strong acidic cation exchange resin for adsorption, after the adsorption is completed within 6 hours, rinse w...
Embodiment 3
[0044] Get diammonium hydrogen phosphate 36kg and dissolve in 360kg water. Stir, the synthesis solution containing triacetyl compound in the production process of etimicin sulfate is 16l / min (500L reaction solution is exhausted in 30 minutes) with flow rate, slowly sucks in the diammonium hydrogen phosphate solution. Continue to stir and draw in 10L of ammonium sulfide solution (reagent grade), and stir for 10 minutes after the pumping is complete. Then pump in 6kg of powdered activated carbon, stir and heat to 50°C to 60°C, and keep warm for 15 minutes. Press it into a flat plate filter to obtain a light yellow filtrate, and use an ammonium sulfide test solution to detect that there is no residual cobalt ion.
[0045]Extract according to extraction method 2: Add 120-150L of concentrated ammonia water to the filtrate that has completely decobalted, pass it into a separation column equipped with D1300 macroporous adsorption resin, and absorb it. After the adsorption is complet...
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