CN103058281A - Process and device used for preparing ferrate salt with on-line wet chemical method - Google Patents
Process and device used for preparing ferrate salt with on-line wet chemical method Download PDFInfo
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- CN103058281A CN103058281A CN2013100034323A CN201310003432A CN103058281A CN 103058281 A CN103058281 A CN 103058281A CN 2013100034323 A CN2013100034323 A CN 2013100034323A CN 201310003432 A CN201310003432 A CN 201310003432A CN 103058281 A CN103058281 A CN 103058281A
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Abstract
The invention relates to a process used for preparing ferrate salt with an on-line wet chemical method. The process is characterized in that a mixed solution of NaOH and NaClO of a first storage tank and solid FeNO3 delivered by a conveyer belt or a FeNO3 solution of a third storage tank are delivered into a second mixing storage tank or a static mixer and are sufficiently mixed, such that a reaction mixed liquid is obtained. The reaction mixed liquid is delivered into an annular pipe, and ferrate salt liquid product is obtained from a liquid outlet of the annular pipe. The invention also provides a device suitable for the process. With the process and the device, liquid ferrate salt can be produced on line intermittently or continuously, and waste caused by ferrate salt purification and re-dissolving is avoided. The process and the device have the advantages such as reasonable structure, high production efficiency, low preparation cost, and the like.
Description
Technical field
The present invention relates to a kind of preparation method of inolrganic chemicals, particularly a kind of online wet chemistry method prepares technique and the device of ferrate.
Background technology
Ferrate is owing to the valency of iron has strong oxidizing property for+6 valencys, and in basic solution, its redox potential is 0.72V, and its redox potential is 2.2V in acid this solution.Ferrate has widely to be used, and can replace other high toxicity oxide compound in organic synthesis, and some functional group of oxidation optionally is as being oxidized to respectively aldehyde and ketone with primary alconol and secondary alcohol.Because FeO
4 2-Have high discharge capacity, therefore in field of batteries, received great concern, be expected to replace the cathode material in the conventional batteries.Ferrate can also be as desirable magnetic memory material, the magnetic control delivery systme of preparation take ferrate as the core sterilizing agent etc.Decomposition rate by the control ferrate can also prepare various types of hydrous iron oxides as the near infrared solid laser material.In water treatment applications, ferrate can replace the oxygenants such as chlorine, ozone, potassium permanganate, generates simultaneously Fe (OH) in the oxidation of organic compounds process
3And Fe (OH)
3Be flocculation agent common in the water treatment, have good throwing out.With respect to traditional water technology, this process generates without any toxic byproduct, does not cause secondary pollution, therefore is described as the efficient green water conditioner that integrates oxidation, flocculation, coagulation and sterilization and disinfection.As seen ferrate has broad application prospects.
The natural high-iron hydrochlorate exists hardly, so the preparation method of ferrate and processing condition become the important topic of Recent study.The method of producing ferrate has three kinds usually, and starting material are stable being easy to get very all.These methods mainly comprise: (1) electrochemical process, (2) high temperature drying oxidation style, (3) room temperature wet oxidation.The high temperature drying oxidation style claims again scorification, is the method for finding the earliest to prepare ferrate, and it refers under the caustic alkali existence condition, and high temperature solid-state or melting phase reaction occur, and prepares the method for ferrate.High temperature drying oxidation style severe reaction conditions, heat release speed causes an explosion accident soon easily, easy etching apparatus, there be limited evidence currently of adopts.Electrochemical process also is that electrolytic process prepares ferrate, possess starting material be easy to get, easy and simple to handle, the advantage such as obtained primary products purity is high, by product is few.But electrolytic process prepares and also has problems in the ferrate technique, and is low such as production concentration, productive rate is low and current efficiency is low, and is subject to the problems such as ambient conditions such as temperature, current density, voltage influence.
Wet oxidation process also claims hypochlorite oxidation method once to be considered to prepare the best method of basic metal ferrate after being proposed by Schreyer in 1948, and the product purity that makes can reach 96.9%, but productive rate is very low, is no more than 15%.G.W.Thompson etc. improve from oxidation and two processes of purifying aforesaid method, take iron nitrate as raw material, after saturated hypochlorite oxidation, use the KOH crystallization, and thick product used benzene, ethanol, ether carrying out washing treatment successively, product purity can reach 92%～96%, and productive rate brings up to 44%～76%, and concrete equation is as follows.
Concrete reaction is as follows:
Fe
3++3OH
-→Fe(OH)
3
2Fe(OH)
3+3NaClO+4NaOH?→?2Na
2FeO
4+3NaCl+5H
2O
Na
2FeO
4+2KOH?→K
2FeO
4+2NaOH
Wet oxidation process afterwards all is improvement on this basis.As seen, the ferrate oxidation reduction potential is high, and is unstable, and the acquisition of potassium ferrate crystal also is a loaded down with trivial details chemical purification process.Potassium sodium mixing alkaline process can make the hypochlorite solutions of greater concn after deliberation, thereby the iron salt solutions oxidizing reaction is finished fast, gained solution is more stable, filter operation is convenient and swift, has greatly improved Fe (III) to the transformation efficiency of Fe (VI) and the productive rate of Fe (VI) simultaneously.Also chlorine directly can be passed in the KOH solution, the saturated potassium hypochlorite strong alkali solution that makes makes Fe (III) be oxidized to Fe (VI), has walked around the intermediate product Na2Fe04 and directly makes potassium ferrate, has simplified simultaneously purification step.In order to improve the stability of ferrate, can add stablizer such as hypochlorite, water glass, cupric chloride, potassiumiodide etc., Na2Fe04 decomposes in the liquid to prevent from preparing.
In summary, although ferrate is described as " green " chemical, restrict two factors that mainly contain of its application, one is that preparation condition is harsh, and cost is high; Another is especially unstable under the dampness with regard to its unstable.In the water treatment applications process, find, using the potassium ferrate crystal to dissolve in water also is a comparatively slowly process, must could accelerate its dissolving by methods such as strong stirring or jet injections, and the degraded of potassium ferrate is also very serious in the process of dissolving.As seen ferrate is produced actually at the scene, and when being used for water treatment, need not to be purified to crystal, directly uses ferrate solution, can avoid purifying dissolving medicament that this repeated work causes and the waste of energy again.
Summary of the invention
The object of the invention is to, provide a kind of rational in infrastructure, production efficiency is high, and the online wet chemistry method that preparation cost is low prepares the device of ferrate, and provides scientific and reasonable, and is simple and easy to do, and the online wet chemistry method of good stability prepares the technique processed of ferrate.
Realize that the technical scheme that the object of the invention is taked is:
A kind of online wet chemistry method prepares the device of ferrate, it is characterized in that, it comprises the first storage tank with first agitator, travelling belt, the second storage tank and ring pipe with second agitator, the liquid exit of described the first storage tank is communicated with the top of the second storage tank by the first valve and the first volume pump that arranges on pipeline and the pipeline, the discharge port of travelling belt links to each other with the top of the second storage tank, and the liquid exit of described the second storage tank is communicated with the liquid-inlet of ring pipe by the second valve and the second volume pump that arranges on pipeline and the pipeline.
A kind of online wet chemistry method prepares the device of ferrate, it is characterized in that, it comprises the first storage tank with first agitator, the 3rd storage tank with the 3rd agitator, static mixer and reaction coil pipe, first valve and first volume pump of the liquid exit of described the first storage tank by arranging on pipeline and the pipeline, the liquid exit of described the 3rd storage tank all is communicated with the liquid-inlet of static mixer by triplate line by the 3rd valve and the 3rd volume pump that arranges on pipeline and the pipeline, and the liquid exit of static mixer is communicated with the liquid-inlet of ring pipe by the second volume pump that arranges on pipeline and the pipeline.
A kind of online wet chemistry method prepares the device of ferrate, it is characterized in that, it comprises the first storage tank with first agitator, the 3rd storage tank with the 3rd agitator, the second storage tank and reaction coil pipe with second agitator, first valve and first volume pump of the liquid exit of described the first storage tank by arranging on pipeline and the pipeline, the liquid exit of described the 3rd storage tank all is communicated with by the top of triplate line with the second storage tank with second agitator by the 3rd valve and the 3rd volume pump that arranges on pipeline and the pipeline, and the liquid exit of described the second storage tank is communicated with the liquid-inlet of ring pipe by the second valve and the second volume pump that arranges on pipeline and the pipeline.
The device that a kind of online wet chemistry method prepares ferrate carries out the technique that ferrate is produced, and it is characterized in that it comprises NaOH solution and FeNO with NaClO
3Solid is got the raw materials ready in proportion, the NaOH solution of NaClO is placed the first storage tank, be delivered to the second storage tank by the first valve and the first volume pump that pipeline and pipeline arrange by the well-beaten NaOH of the first agitator and the NaClO mixing solutions liquid exit from the first storage tank, again with FeNO
3Solid places on the travelling belt and carries, and sends in the second storage tank its NaClO and FeNO through the discharge port of travelling belt
3Mol ratio be 1.5 ~ 6:1, in the second storage tank, by the reaction mixture that obtained in the abundant stirring reaction 40-120 of the second agitator minute, send in the ring pipe by the second valve and the second volume pump that pipeline and pipeline arrange from the liquid exit of the second storage tank, obtain the ferrate liquid product from the liquid exit of ring pipe.
The device that a kind of online wet chemistry method prepares ferrate carries out the technique that ferrate is produced, and it is characterized in that it comprises NaOH solution and FeNO with NaClO
3Solution is got the raw materials ready, the NaOH solution of NaClO is placed the first storage tank, send into the static mixer from the first valve, the first volume pump and triplate line that the liquid exit of the first storage tank arranges by pipeline and pipeline by the well-beaten NaOH of the first agitator and NaClO mixing solutions, again will be by the FeNO of the abundant stirring and dissolving of the 3rd agitator in water
3Solution is sent into the static mixer its NaClO and FeNO from the 3rd valve, the 3rd volume pump and triplate line that the liquid exit of the 3rd storage tank arranges by pipeline and pipeline
3Mol ratio be 1.5 ~ 6:1, the mixing solutions of NaOH and NaClO and FeNO
3Solution is after static mixer fully reacts mixing, and the second volume pump that arranges by pipeline and pipeline from the liquid exit of static mixer is sent into the ring pipe and fully reacted 40-120 minute again, obtains the ferrate liquid product from the liquid exit of ring pipe.
The device that a kind of online wet chemistry method prepares ferrate carries out the technique that ferrate is produced, and it is characterized in that it comprises NaOH solution and FeNO with NaClO
3Solution is got the raw materials ready, the NaOH solution of NaClO is placed the first storage tank, send into the second storage tank from the first valve, the first volume pump and triplate line that the liquid exit of the first storage tank arranges by pipeline and pipeline by the well-beaten NaOH of the first agitator and NaClO mixing solutions, again will be by the FeNO of the abundant stirring and dissolving of the 3rd agitator in water
3Solution is sent into the second storage tank its NaClO and FeNO from the 3rd valve, the 3rd volume pump and triplate line that the liquid exit of the 3rd storage tank arranges by pipeline and pipeline
3Mol ratio be 1.5 ~ 6:1, the mixing solutions of NaOH and NaClO and FeNO
3The reaction mixture that solution obtains after the even mixing of the second agitator is fully reacted 10-30 minute, the second valve that arranges by pipeline and pipeline from the liquid exit of the second storage tank and the second volume pump are sent into the ring pipe and were fully reacted 30-90 minute again, obtain the ferrate liquid product from the liquid exit of ring pipe.
The device that online wet chemistry method of the present invention prepares ferrate provides a new practicable technical scheme for online ferrate extensive, that commercially produce required concentration and output, especially be applied in the water treatment system, need not purify crystal and dissolution process have again been saved chemical agent and cost.
The preparation technology that online wet chemistry method of the present invention prepares ferrate is scientific and reasonable, simple and easy to do, and production efficiency is high, and preparation cost is low, and good stability can be used in the continuous or batch production of ferrate.
Description of drawings
Fig. 1 is the apparatus structure synoptic diagram that a kind of online wet chemistry method of embodiment 1 prepares ferrate.
Fig. 2 is the apparatus structure synoptic diagram that a kind of online wet chemistry method of embodiment 2 prepares ferrate;
Fig. 3 is the apparatus structure synoptic diagram that a kind of online wet chemistry method of embodiment 3 prepares ferrate.
Among the figure: 1 first storage tank, 2 second storage tanks, 3 the 3rd storage tanks, 4 NaOH and NaClO mixing solutions, 5 FeNO
3Solution, 6-1 the first agitator, 6-2 the second agitator, 6-3 the 3rd agitator, 7-1 first flow meter, 7-2 the second under meter, 7-3 the 3rd under meter, 8-1 the first valve, 8-2 the second valve 2,8-3 the 3rd valve, 9-1 the first volume pump, 9-2 the second volume pump, 9-3 the 3rd volume pump, 10 reaction mixtures, 11 ring pipes, 12 solid trivalent iron salts, 13 static mixers, 14 travelling belts, 15 triplate lines.
Embodiment
Below by in conjunction with the accompanying drawings and embodiments the present invention being described further.
Embodiment 1: a kind of online wet chemistry method of embodiment 1 prepares the device of ferrate, it comprises the first storage tank 1 with first agitator 6-1, travelling belt 14, the second storage tank 2 and ring pipe 11 with second agitator 6-2, the liquid exit of described the first storage tank 1 is communicated with the top of the second storage tank 2 by the first valve 8-1 and the first volume pump 9-1 that arranges on pipeline and the pipeline, the discharge port of travelling belt 14 links to each other with the top of the second storage tank 2, and the liquid exit of described the second storage tank 2 is communicated with the liquid-inlet of ring pipe 11 by the second valve 8-2 and the second volume pump 9-2 that arranges on pipeline and the pipeline.
Embodiment 2: a kind of online wet chemistry method of embodiment 2 prepares the device of ferrate, it comprises the first storage tank 1 with first agitator 6-1, the 3rd storage tank 3 with the 3rd agitator 6-3, static mixer 13 and ring pipe 11, first valve 8-1 and the first volume pump 9-1 of the liquid exit of described the first storage tank 1 by arranging on pipeline and the pipeline, the liquid exit of described the 3rd storage tank 3 all is communicated with by the liquid-inlet of triplate line 15 with static mixer 13 by the 3rd valve 8-3 and the 3rd volume pump 9-3 that arranges on pipeline and the pipeline, and the liquid exit of static mixer 13 is communicated with the liquid-inlet of ring pipe 11 by the second volume pump 9-2 that arranges on pipeline and the pipeline.
Embodiment 3: a kind of online wet chemistry method of embodiment 3 prepares the device of ferrate, it comprises the first storage tank 1 with first agitator 6-1, the 3rd storage tank 3 with the 3rd agitator 6-3, the second storage tank 2 and ring pipe 11 with second agitator 6-2, first valve 8-1 and the first volume pump 9-1 of the liquid exit of described the first storage tank 1 by arranging on pipeline and the pipeline, the liquid exit of described the 3rd storage tank 3 all is communicated with by the top of triplate line 15 with the second storage tank 2 with second agitator 6-2 by the 3rd valve 8-3 and the 3rd volume pump 9-3 that arranges on pipeline and the pipeline, and the liquid exit of described the second storage tank 2 is communicated with the liquid-inlet of ring pipe 11 by the second valve 8-2 and the second volume pump 9-2 that arranges on pipeline and the pipeline.
The preparation process that the device that adopts a kind of online wet chemistry method of embodiment 1 to prepare ferrate carries out ferrate is: press the NaClO75mL of NaOH, 0.9mol/L of 40g and the FeNO of 18.18g
39H
2The O ratio is got the raw materials ready, used NaClO and FeNO
3Mol ratio be 1.5:1, NaOH and the NaClO of described ratio content are placed the first storage tank 1, be delivered to the second storage tank 2 by the first valve 8-1 and the first volume pump 9-1 that pipeline and pipeline arrange by the well-beaten NaOH of the first agitator 6-1 and NaClO mixing solutions 4 liquid exit from the first storage tank 1, again with the solid FeNO of described ratio content
39H
2O12 places on the travelling belt 14 and carries, send in the second storage tank 2 through the discharge port of travelling belt 14, in the second storage tank 2, the reaction mixture 10 that obtained in 80 minutes by the abundant stirring reaction of the second agitator 6-2, send in the ring pipe 11 by the second valve 8-2 and the second volume pump 9-2 that pipeline and pipeline arrange from the liquid exit of the second storage tank 2, obtain 18.26g/L ferrate liquid product from the liquid exit of ring pipe 11, ferrate liquid can be widely used in the water treatment system, wherein FeNO
39H
2O namely is trivalent iron salt.
The preparation process that the device that adopts a kind of online wet chemistry method of embodiment 1 to prepare ferrate carries out ferrate is: press the NaClO75mL of NaOH, 0.9mol/L of 40g and the FeNO of 6.82g
39H
2The O ratio is got the raw materials ready, used NaClO and FeNO
3Mol ratio be 4:1, NaOH and the NaClO of described ratio content are placed the first storage tank 1, be delivered to the second storage tank 2 by the first valve 8-1 and the first volume pump 9-1 that pipeline and pipeline arrange by the well-beaten NaOH of the first agitator 6-1 and NaClO mixing solutions 4 liquid exit from the first storage tank 1, again with the solid FeNO of described ratio content
39H
2O12 places on the travelling belt 14 and carries, send in the second storage tank 2 through the discharge port of travelling belt 14, in the second storage tank 2, the reaction mixture 10 that obtained in 80 minutes by the abundant stirring reaction of the second agitator 6-2, send in the ring pipe 11 by the second valve 8-2 and the second volume pump 9-2 that pipeline and pipeline arrange from the liquid exit of the second storage tank 2, obtain 9.96g/L ferrate liquid product from the liquid exit of ring pipe 11, ferrate liquid can be widely used in the water treatment system, wherein FeNO
39H
2O namely is trivalent iron salt.
The preparation process that the device that adopts a kind of online wet chemistry method of embodiment 1 to prepare ferrate carries out ferrate is: press the NaClO75mL of NaOH, 0.9mol/L of 40g and the FeNO of 4.55g
39H
2The O ratio is got the raw materials ready, used NaClO and FeNO
3Mol ratio be 6:1, NaOH and the NaClO of described ratio content are placed the first storage tank 1, be delivered to the second storage tank 2 by the first valve 8-1 and the first volume pump 9-1 that pipeline and pipeline arrange by the well-beaten NaOH of the first agitator 6-1 and NaClO mixing solutions 4 liquid exit from the first storage tank 1, again with the solid FeNO of described ratio content
39H
2O12 places on the travelling belt 14 and carries, send in the second storage tank 2 through the discharge port of travelling belt 14, in the second storage tank 2, the reaction mixture 10 that obtained in 80 minutes by the abundant stirring reaction of the second agitator 6-2, send in the ring pipe 11 by the second valve 8-2 and the second volume pump 9-2 that pipeline and pipeline arrange from the liquid exit of the second storage tank 2, obtain 7.30g/L ferrate liquid product from the liquid exit of ring pipe 11, ferrate liquid can be widely used in the water treatment system, wherein FeNO
39H
2O namely is trivalent iron salt.
The preparation process that the device that adopts a kind of online wet chemistry method of embodiment 2 to prepare ferrate carries out ferrate is: press the NaClO 75mL of NaOH, 0.9mol/L of 40g and the FeNO of 462g/L
3Aqueous solution ratio is got the raw materials ready, used NaClO and FeNO
3Mol ratio be 1.5:1, NaOH and the NaClO of described ratio content are placed the first storage tank 1, mixing solutions 4 by the well-beaten NaOH of the first agitator 6-1 and NaClO is sent into the static mixer 13 from the first valve 8-1, the first volume pump 9-1 and triplate line 15 that the liquid exit of the first storage tank 1 arranges by pipeline and pipeline, again with described FeNO
3Solution places the 3rd storage tank 3, this FeNO
3Solution is sent into the static mixer 13 from the 3rd valve 8-3, the 3rd volume pump 9-3 and triplate line 15 that the liquid exit of the 3rd storage tank 3 arranges by pipeline and pipeline, according to NaOH solution and the FeNO of NaClO
3The saturated solution volume ratio is the ratio of 75mL:23.5mL, NaOH and NaClO mixing solutions 4 and FeNO
3 Solution 5 is after static mixer 13 fully reacts mixing, the the second volume pump 9-2 that arranges by pipeline and pipeline from the liquid exit of static mixer 13 sends into the ring pipe 11 and fully reacted 90 minutes again, obtains 16.87g/L ferrate liquid product from the liquid exit of ring pipe 11.
The preparation process that the device that adopts a kind of online wet chemistry method of embodiment 2 to prepare ferrate carries out ferrate is: press the NaClO 75mL of NaOH, 0.9mol/L of 40g and the FeNO of 462g/L
3Aqueous solution ratio is got the raw materials ready, used NaClO and FeNO
3Mol ratio be 4:1, NaOH and the NaClO of described ratio content are placed the first storage tank 1, mixing solutions 4 by the well-beaten NaOH of the first agitator 6-1 and NaClO is sent into the static mixer 13 from the first valve 8-1, the first volume pump 9-1 and triplate line 15 that the liquid exit of the first storage tank 1 arranges by pipeline and pipeline, again with described FeNO
3Solution places the 3rd storage tank 3, this FeNO
3Solution is sent into the static mixer 13 from the 3rd valve 8-3, the 3rd volume pump 9-3 and triplate line 15 that the liquid exit of the 3rd storage tank 3 arranges by pipeline and pipeline, according to NaOH solution and the FeNO of NaClO
3Liquor capacity is than being the ratio of 75mL:8.8mL, NaOH and NaClO mixing solutions 4 and FeNO
3 Solution 5 is after static mixer 13 fully reacts mixing, the the second volume pump 9-2 that arranges by pipeline and pipeline from the liquid exit of static mixer 13 sends into the ring pipe 11 and fully reacted 90 minutes again, obtains 11.02g/L ferrate liquid product from the liquid exit of ring pipe 11.
The preparation process that the device that adopts a kind of online wet chemistry method of embodiment 2 to prepare ferrate carries out ferrate is: press the NaClO 75mL of NaOH, 0.9mol/L of 40g and the FeNO of 462g/L
3Aqueous solution ratio is got the raw materials ready, used NaClO and FeNO
3Mol ratio be 6:1, NaOH and the NaClO of described ratio content are placed the first storage tank 1, mixing solutions 4 by the well-beaten NaOH of the first agitator 6-1 and NaClO is sent into the static mixer 13 from the first valve 8-1, the first volume pump 9-1 and triplate line 15 that the liquid exit of the first storage tank 1 arranges by pipeline and pipeline, again with described FeNO
3Solution places the 3rd storage tank 3, this FeNO
3Solution is sent into the static mixer 13 from the 3rd valve 8-3, the 3rd volume pump 9-3 and triplate line 15 that the liquid exit of the 3rd storage tank 3 arranges by pipeline and pipeline, according to NaOH solution and the FeNO of NaClO
3Liquor capacity is than being the ratio of 75mL:5.9mL, NaOH and NaClO mixing solutions 4 and FeNO
3 Solution 5 is after static mixer 13 fully reacts mixing, the the second volume pump 9-2 that arranges by pipeline and pipeline from the liquid exit of static mixer 13 sends into the ring pipe 11 and fully reacted 90 minutes again, obtains 8.12g/L ferrate liquid product from the liquid exit of ring pipe 11.
The preparation process that the device that adopts a kind of online wet chemistry method of embodiment 3 to prepare ferrate carries out ferrate is: press the NaClO 75mL of NaOH, 0.9mol/L of 40g and the FeNO of 462g/L
3Aqueous solution ratio is got the raw materials ready, used NaClO and FeNO
3Mol ratio be 1.5:1, NaOH and the NaClO of described ratio content are placed the first storage tank 1, send into the second storage tank 2, with described FeNO from the first valve 8-1, the first volume pump 9-1 and triplate line 15 that the liquid exit of the first storage tank 1 arranges by pipeline and pipeline by the well-beaten NaOH of the first agitator 6-1 and NaClO mixing solutions 4
3Solution places the 3rd storage tank 3, this FeNO
3 Solution 5 is sent into the second storage tank 2 from the 3rd valve 8-3, the 3rd volume pump 9-3 and triplate line 15 that the liquid exit of the 3rd storage tank 3 arranges by pipeline and pipeline, according to NaOH solution and the FeNO of NaClO
3Liquor capacity is than being the ratio of 75mL:23.5mL, NaOH and NaClO mixing solutions 4 and FeNO
3The reaction mixture 10 that solution 5 obtains after the even mixing of the second agitator 6-2 is fully reacted 30 minutes, the the second valve 8-2 that arranges by pipeline and pipeline from the liquid exit of the second storage tank 2 and the second volume pump 9-2 send into the ring pipe 11 and fully reacted 60 minutes again, obtain 17.30g/L ferrate liquid product from the liquid exit of ring pipe 11, this system can also produce ferrate continuously, and since the existence of hybrid reaction the second storage tank 3, the 11 corresponding suitable shortenings of reaction coil pipe.
The preparation process that the device that adopts a kind of online wet chemistry method of embodiment 3 to prepare ferrate carries out ferrate is: press the NaClO 75mL of NaOH, 0.9mol/L of 40g and the FeNO of 462g/L
3Aqueous solution ratio is got the raw materials ready, used NaClO and FeNO
3Mol ratio be 4:1, NaOH and the NaClO of described ratio content are placed the first storage tank 1, send into the second storage tank 2, with described FeNO from the first valve 8-1, the first volume pump 9-1 and triplate line 15 that the liquid exit of the first storage tank 1 arranges by pipeline and pipeline by the well-beaten NaOH of the first agitator 6-1 and NaClO mixing solutions 4
3Solution places the 3rd storage tank 3, this FeNO
3 Solution 5 is sent into the second storage tank 2 from the 3rd valve 8-3, the 3rd volume pump 9-3 and triplate line 15 that the liquid exit of the 3rd storage tank 3 arranges by pipeline and pipeline, according to NaOH solution and the FeNO of NaClO
3Liquor capacity is than being the ratio of 75mL:8.8mL, NaOH and NaClO mixing solutions 4 and FeNO
3The reaction mixture 10 that solution 5 obtains after the even mixing of the second agitator 6-2 is fully reacted 30 minutes, the the second valve 8-2 that arranges by pipeline and pipeline from the liquid exit of the second storage tank 2 and the second volume pump 9-2 send into the ring pipe 11 and fully reacted 60 minutes again, obtain 10.79g/L ferrate liquid product from the liquid exit of ring pipe 11, this system can also produce ferrate continuously, and since the existence of hybrid reaction the second storage tank 3, the 11 corresponding suitable shortenings of reaction coil pipe.
The preparation process that the device that adopts a kind of online wet chemistry method of embodiment 3 to prepare ferrate carries out ferrate is: press the NaClO 75mL of NaOH, 0.9mol/L of 40g and the FeNO of 462g/L
3Aqueous solution ratio is got the raw materials ready, used NaClO and FeNO
3Mol ratio be 6:1, NaOH and the NaClO of described ratio content are placed the first storage tank 1, send into the second storage tank 2, with described FeNO from the first valve 8-1, the first volume pump 9-1 and triplate line 15 that the liquid exit of the first storage tank 1 arranges by pipeline and pipeline by the well-beaten NaOH of the first agitator 6-1 and NaClO mixing solutions 4
3Solution places the 3rd storage tank 3, this FeNO
3 Solution 5 is sent into the second storage tank 2 from the 3rd valve 8-3, the 3rd volume pump 9-3 and triplate line 15 that the liquid exit of the 3rd storage tank 3 arranges by pipeline and pipeline, according to NaOH solution and the FeNO of NaClO
3Liquor capacity is than being the ratio of 75mL:5.9mL, NaOH and NaClO mixing solutions 4 and FeNO
3The reaction mixture 10 that solution 5 obtains after the even mixing of the second agitator 6-2 is fully reacted 30 minutes, the the second valve 8-2 that arranges by pipeline and pipeline from the liquid exit of the second storage tank 2 and the second volume pump 9-2 send into the ring pipe 11 and fully reacted 60 minutes again, obtain 7.97g/L ferrate liquid product from the liquid exit of ring pipe 11, this system can also produce ferrate continuously, and since the existence of hybrid reaction the second storage tank 3, the 11 corresponding suitable shortenings of reaction coil pipe.
The specific embodiment of the present invention is also non exhaustive, and those skilled in the art should belong to the protection domain of claim of the present invention without simple copy and the improvement of creative work.
Claims (6)
1. an online wet chemistry method prepares the device of ferrate, it is characterized in that, it comprises the first storage tank with first agitator, travelling belt, the second storage tank and ring pipe with second agitator, the liquid exit of described the first storage tank is communicated with the top of the second storage tank by the first valve and the first volume pump that arranges on pipeline and the pipeline, the discharge port of travelling belt links to each other with the top of the second storage tank, and the liquid exit of described the second storage tank is communicated with the liquid-inlet of ring pipe by the second valve and the second volume pump that arranges on pipeline and the pipeline.
2. an online wet chemistry method prepares the device of ferrate, it is characterized in that, it comprises the first storage tank with first agitator, the 3rd storage tank with the 3rd agitator, static mixer and reaction coil pipe, first valve and first volume pump of the liquid exit of described the first storage tank by arranging on pipeline and the pipeline, the liquid exit of described the 3rd storage tank all is communicated with the liquid-inlet of static mixer by triplate line by the 3rd valve and the 3rd volume pump that arranges on pipeline and the pipeline, and the liquid exit of static mixer is communicated with the liquid-inlet of ring pipe by the second volume pump that arranges on pipeline and the pipeline.
3. an online wet chemistry method prepares the device of ferrate, it is characterized in that, it comprises the first storage tank with first agitator, the 3rd storage tank with the 3rd agitator, the second storage tank and reaction coil pipe with second agitator, first valve and first volume pump of the liquid exit of described the first storage tank by arranging on pipeline and the pipeline, the liquid exit of described the 3rd storage tank all is communicated with by the top of triplate line with the second storage tank with second agitator by the 3rd valve and the 3rd volume pump that arranges on pipeline and the pipeline, and the liquid exit of described the second storage tank is communicated with the liquid-inlet of ring pipe by the second valve and the second volume pump that arranges on pipeline and the pipeline.
4. the online wet chemistry method device for preparing ferrate carries out the technique that ferrate is produced, and it is characterized in that it comprises NaOH solution and FeNO with NaClO
3Solid is got the raw materials ready in proportion, the NaOH solution of NaClO is placed the first storage tank, be delivered to the second storage tank by the first valve and the first volume pump that pipeline and pipeline arrange by the well-beaten NaOH of the first agitator and the NaClO mixing solutions liquid exit from the first storage tank, again with FeNO
3Solid places on the travelling belt and carries, and sends in the second storage tank its NaClO and FeNO through the discharge port of travelling belt
3Mol ratio be 1.5 ~ 6:1, in the second storage tank, by the reaction mixture that obtained in the abundant stirring reaction 40-120 of the second agitator minute, send in the ring pipe by the second valve and the second volume pump that pipeline and pipeline arrange from the liquid exit of the second storage tank, obtain the ferrate liquid product from the liquid exit of ring pipe.
5. the online wet chemistry method device for preparing ferrate carries out the technique that ferrate is produced, and it is characterized in that it comprises NaOH solution and FeNO with NaClO
3Solution is got the raw materials ready, the NaOH solution of NaClO is placed the first storage tank, send into the static mixer from the first valve, the first volume pump and triplate line that the liquid exit of the first storage tank arranges by pipeline and pipeline by the well-beaten NaOH of the first agitator and NaClO mixing solutions, again will be by the FeNO of the abundant stirring and dissolving of the 3rd agitator in water
3Solution is sent into the static mixer its NaClO and FeNO from the 3rd valve, the 3rd volume pump and triplate line that the liquid exit of the 3rd storage tank arranges by pipeline and pipeline
3Mol ratio be 1.5 ~ 6:1, the mixing solutions of NaOH and NaClO and FeNO
3Solution is after static mixer fully reacts mixing, and the second volume pump that arranges by pipeline and pipeline from the liquid exit of static mixer is sent into the ring pipe and fully reacted 40-120 minute again, obtains the ferrate liquid product from the liquid exit of ring pipe.
6. the online wet chemistry method device for preparing ferrate carries out the technique that ferrate is produced, and it is characterized in that it comprises NaOH solution and FeNO with NaClO
3Solution is got the raw materials ready, the NaOH solution of NaClO is placed the first storage tank, send into the second storage tank from the first valve, the first volume pump and triplate line that the liquid exit of the first storage tank arranges by pipeline and pipeline by the well-beaten NaOH of the first agitator and NaClO mixing solutions, again will be by the FeNO of the abundant stirring and dissolving of the 3rd agitator in water
3Solution is sent into the second storage tank its NaClO and FeNO from the 3rd valve, the 3rd volume pump and triplate line that the liquid exit of the 3rd storage tank arranges by pipeline and pipeline
3Mol ratio be 1.5 ~ 6:1, the mixing solutions of NaOH and NaClO and FeNO
3The reaction mixture that solution obtains after the even mixing of the second agitator is fully reacted 10-30 minute, the second valve that arranges by pipeline and pipeline from the liquid exit of the second storage tank and the second volume pump are sent into the ring pipe and were fully reacted 30-90 minute again, obtain the ferrate liquid product from the liquid exit of ring pipe.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417672A (en) * | 2015-11-11 | 2016-03-23 | 青岛农业大学 | Method and system for online preparing ferrate to process sewage |
| CN106745304A (en) * | 2017-03-05 | 2017-05-31 | 东北石油大学 | A kind of online method for preparing ferrate solution |
| CN109867346A (en) * | 2019-03-14 | 2019-06-11 | 西南交通大学 | A kind of throwing device and addition method of composite ferrate chemicals |
| CN110449109A (en) * | 2019-03-21 | 2019-11-15 | 东北电力大学 | A kind of preparation method and device for wet oxidation process continuous production of high-concentration ferrate |
| CN112691568A (en) * | 2021-01-12 | 2021-04-23 | 陕西青叶生物科技有限公司 | Mixing stirrer for preparing hypochlorous acid solution |
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|---|---|---|---|---|
| CN1329182A (en) * | 2001-02-27 | 2002-01-02 | 西安建筑科技大学 | Field preparation process for ferrate and its system |
| CN1452594A (en) * | 2000-07-14 | 2003-10-29 | Ab开元公司 | Methods of synthesizing oxidant and applications thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1452594A (en) * | 2000-07-14 | 2003-10-29 | Ab开元公司 | Methods of synthesizing oxidant and applications thereof |
| CN1329182A (en) * | 2001-02-27 | 2002-01-02 | 西安建筑科技大学 | Field preparation process for ferrate and its system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417672A (en) * | 2015-11-11 | 2016-03-23 | 青岛农业大学 | Method and system for online preparing ferrate to process sewage |
| CN106745304A (en) * | 2017-03-05 | 2017-05-31 | 东北石油大学 | A kind of online method for preparing ferrate solution |
| CN106745304B (en) * | 2017-03-05 | 2018-09-18 | 东北石油大学 | A method of preparing ferrate solution online |
| CN109867346A (en) * | 2019-03-14 | 2019-06-11 | 西南交通大学 | A kind of throwing device and addition method of composite ferrate chemicals |
| CN110449109A (en) * | 2019-03-21 | 2019-11-15 | 东北电力大学 | A kind of preparation method and device for wet oxidation process continuous production of high-concentration ferrate |
| CN112691568A (en) * | 2021-01-12 | 2021-04-23 | 陕西青叶生物科技有限公司 | Mixing stirrer for preparing hypochlorous acid solution |
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Application publication date: 20130424 |