Graphite electrode system for industrial electrolysis production of succinic acid
A technology of graphite electrode and succinic acid, which is applied in the direction of electrolytic organic production, electrodes, electrode coatings, etc., can solve the problems of unsuitable high-temperature medium, low current density, and easy corrosion of lead alloys, so as to reduce the cost of anode maintenance and anode consumption , reduce the amount, improve the effect of solubility
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Embodiment 1
[0021] refer to figure 2 , a graphite electrode system for industrial electrolytic production of succinic acid, comprising an industrial electrolysis device 1, the industrial electrolysis device 1 includes a lead alloy cathode 3 and a graphite anode, the graphite anode is a graphite packed bed electrode; the graphite packed bed electrode consists of a titanium basket 5 , graphite filler 4, current collector 2 and graphite supplementary device 6. The specification of the titanium basket 5 is 1000mm*1000mm*100mm, the graphite filler 4 is a cylindrical conductive graphite particle, and the cylindrical conductive graphite particle is a large particle graphite particle with a mass of 100kg; the current collector 2 is coated with iridium titanium The titanium-copper composite plate has a specification of 100mm*10mm, and the lower end of the current collector is set in a fixed bed filled with graphite particles; the specification of the lead alloy cathode 3 is 1000mm*1000mm*5mm. Th...
Embodiment 2-3
[0029] According to the method of embodiment 1, two electrolyzers among the 120 electrolyzers are used as experimental electrolyzers alone, and the impact of graphite filler on the result of synthesizing succinic acid is evaluated; graphite anode connection mode, electrolyte composition and process control are implemented with the same Example 1, replace the type of graphite filler and current collector in the titanium basket, run 10 batches, and convert it into the test results per ton of succinic acid product. The results are shown in Table 2:
[0030] Table 2 Effect of shape of graphite filler on synthesis of succinic acid
[0031]
Embodiment 4-7
[0033] According to the method of Example 1, two electrolyzers among the 120 electrolyzers were used as experimental electrolyzers alone, and the graphite anode connection mode, electrolyte composition and process control were the same as in Example 1, and the cylindrical graphite particles in the graphite filled fixed bed were replaced. The material and current collector type, running 10 batches, converted into the test results per ton of succinic acid product, the results are shown in Table 3:
[0034] Table 3 The effect of graphite filler type and current collector on the synthesis of succinic acid
[0035]
[0036] The results in Table 2 and Table 3 show that different current collectors and graphite anodes can synthesize succinic acid well, and there is little difference in unit consumption and power consumption, but the loss is small because the plate graphite and cylindrical graphite are bulk graphite, Particle-filled graphite is more lossy. Based on the comprehensive...
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