Rapid synthesis technology for poly-ferric sulfate aluminum

[0022] Example 1

[0023] 1) According to the mass percentage of ferrous sulfate heptahydrate 54%, soluble aluminum hydroxide 2.9%, sulfuric acid 9.6%, water 33.5%, add the materials into the reactor, the acid solubility of soluble aluminum hydroxide is 94.5%;

[0024] 2) Add manganese dioxide of 1.0‰ of the mass of ferrous sulfate heptahydrate into the reactor through a metering screw conveyor as a catalyst, and at the same time inject liquid oxygen into the reactor to start the oxidation reaction, and the initial pressure of liquid oxygen injection at the beginning of the oxidation reaction At 0.34MPa, the liquid oxygen injection pressure was adjusted to 0.25MPa after the reaction for 10min, and the reaction temperature was controlled at 50°C during the process;

[0025] 3) The oxidation reaction in the reactor spontaneously conducts hydrolysis and polymerization reactions at the same time. After the reaction is carried out for 30 minutes, the material is spray-dried to obtain

[0026] Example 2

[0027] 1) According to the mass percentage of ferrous sulfate heptahydrate 56%, soluble aluminum hydroxide 1%, sulfuric acid 9.5%, water 33.5%, the materials are added into the reactor, and the acid solubility of soluble aluminum hydroxide is 94.5%;

[0028] 2) Manganese dioxide with 1.2‰ of the mass of ferrous sulfate heptahydrate was added to the reactor through a metering screw conveyor as a catalyst, and at the same time, liquid oxygen was injected into the reactor to start the oxidation reaction, and the initial pressure of liquid oxygen injection at the beginning of the oxidation reaction was started. At 0.35MPa, the liquid oxygen injection pressure was adjusted to 0.26MPa after the reaction for 10min, and the reaction temperature was controlled at 48°C during the process;

[0029] 3) The internal oxidation reaction in the reactor spontaneously conducts hydrolysis and polymerization reactions. After the reaction is carried out for 33 minutes, the material

[0030] Example 3

[0031] 1) According to the mass percentage of ferrous sulfate heptahydrate 51.9%, soluble aluminum hydroxide 5%, sulfuric acid 9.6%, water 33.5%, add the materials into the reactor, the acid solubility of soluble aluminum hydroxide is 94.5%;

[0032] 2) Manganese dioxide with 0.9‰ of the mass of ferrous sulfate heptahydrate was added to the reactor through a metering screw conveyor as a catalyst, and at the same time, liquid oxygen was injected into the reactor to start the oxidation reaction, and the initial pressure of liquid oxygen injection at the beginning of the oxidation reaction was started. At 0.32MPa, the liquid oxygen injection pressure was adjusted to 0.28MPa after the reaction for 10min, and the reaction temperature was controlled at 52°C during the process;

[0033]3) The internal oxidation reaction in the reactor spontaneously conducts hydrolysis and polymerization reactions at the same time. After the reaction is carried out for 32 minutes, the