CN101927984B - Phosphoric acid purification device - Google Patents
Phosphoric acid purification device Download PDFInfo
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- CN101927984B CN101927984B CN2009101026313A CN200910102631A CN101927984B CN 101927984 B CN101927984 B CN 101927984B CN 2009101026313 A CN2009101026313 A CN 2009101026313A CN 200910102631 A CN200910102631 A CN 200910102631A CN 101927984 B CN101927984 B CN 101927984B
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Abstract
The invention discloses a phosphoric acid purification device, comprising an extraction device, a washing device and a back extraction device, wherein the three devices adopt a single-stage phosphoric acid purification device formed by a group of emulsifying machines and a group of phase separation equipment or a multi-stage phosphoric acid purification device formed by combining multiple groups of emulsifying machines and multiple groups of phase separation equipment; a first-stage solvent inlet of the extraction device is connected with a light phase outlet of final-stage phase separation equipment of the back extraction device; a first-stage solvent inlet of the washing device is connected with a light phase outlet of final-stage phase separation equipment of the extraction device; and a first-stage solvent inlet of the back extraction device is connected with a light phase outlet of final-stage phase separation equipment of the washing device. The device can strengthen mass transfer performance, improve purifying efficiency and reduce equipment investment and operating cost.
Description
Technical field
The present invention relates to this chemical plant field, relate in particular to a kind of phosphoric acid purification device.
Background technology
Realize that with solvent extraction technology phosphoric acid purification is a phosphoric acid purification technology commonly used at present, solvent extraction technology generally comprises extraction, washing, reaches the back extraction operation.The chemical plant that can realize extraction, washing, back extraction function at present is mainly following: multistage mixing-clarifying tank; It is a kind of typically contact liquid liquid mass transfer apparatus step by step; Wherein every grade comprises mixing tank and clarifying tank two portions, and this equipment main drawback has: horizontal multistage mixing-tempering tank floor space is bigger, is equipped with whipping appts in each level; Fluid generally needs to use pump delivery flowing of inter-stage, and cost of equipment and process cost are all bigger; Sieve-tray tower, weight two is made counter-current flow in tower, and two are the cross-flow contact mutually on every block of column plate, and this tower mass-transfer efficiency is than higher, but its internal structure is complicated, and manufacturing cost is higher, the internal cleaning difficulty; Packing tower, the packing tower structure is simple relatively, but efficient is lower, the material that can not be used to that solid particulate is arranged and be prone to fouling; Pulsed packed tower and pulsed sieve plate column are in order to improve two situations that contact, reinforcing mass transfer process; Add mechanical energy causing pulsation at packing tower and sieve-tray tower, and the generation of pulsation is realized by reciprocation pump or pressurized air usually; This kind equipment mass-transfer efficiency is high; But manufacturing cost is higher, the internal cleaning difficulty, and working cost is higher; Sieve plate is fixed on the hub in the oscillating screen plate tower, oscillating screen plate tower, is driven by toggle, and this tower is limited by equipment material, the very difficulty that maximizes, and working cost is higher.
The rotor of mulser and stator are under the high-speed driving of motor; Bear the inferior shearing action of hundreds of thousands of at short notice; Because the powerful kinetic energy that high linear speed that the rotor high-speed rotation is produced and high frequency machinery effect belt come; Make that material receives intensive machinery and fluid power shearing, centrifugal extruding, liquid layer friction in the accurate gap of stator and rotor, high-speed impact is torn with comprehensive action division down such as turbulent flow, broken, disperse, thereby make immiscible material in the abundant dispersion in moment uniform, fine ground, emulsification, homogeneous, dissolving.Mulser is widely used in fine chemistry industry at present: resin emulsification, silicone oil emulsification, carbon black dispersion, fillers dispersed etc.; Be applied to petrochemical complex: heavy oil emulsive, emulsified bitumen, wax emulsification etc.; Biological medicine: microcapsule emulsification, medicine emulsion, cell tissue fragmentation etc.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming and provide a kind of can the reinforcing mass transfer performance, improve purification efficiency, reduce the phosphoric acid purification device of facility investment and working cost.
A kind of phosphoric acid purification device of the present invention; Comprise extraction plant, washing device and back extraction device; Wherein: extraction plant one-level light phase export is connected with washing device one-level solvent inlet; Washing device one-level light phase export is connected with back extraction device one-level solvent inlet, and back extraction device one-level light phase export is connected with extraction plant one-level solvent inlet; Extraction plant comprises extraction plant one-level mulser and extraction plant one-level phase splitting device; Extraction plant one-level mulser is provided with mulser import of extraction plant one-level and the outlet of extraction plant one-level mulser; Extraction plant one-level phase splitting device is provided with the import of extraction plant one-level mixed phase, extraction plant one-level heavy out and extraction plant one-level light phase export; The import of extraction plant one-level mulser is connected with phosphoric acid import of extraction plant one-level and extraction plant one-level solvent inlet, and the outlet of extraction plant one-level mulser is connected with the import of extraction plant one-level mixed phase; Washing device comprises washing device one-level mulser and washing device one-level phase splitting device; Washing device one-level mulser is provided with mulser import of washing device one-level and the outlet of washing device one-level mulser; Washing device one-level phase splitting device is provided with the import of washing device one-level mixed phase, washing device one-level heavy out and washing device one-level light phase export; The import of washing device one-level mulser is connected with washing device one-level detergent inlet and washing device one-level solvent inlet, and the outlet of washing device one-level mulser is connected with the import of washing device one-level mixed phase; Back extraction device comprises back extraction device one-level mulser and back extraction device one-level phase splitting device; Back extraction device one-level mulser is provided with mulser import of back extraction device one-level and the outlet of back extraction device one-level mulser; Back extraction device one-level phase splitting device is provided with the import of back extraction device one-level mixed phase, back extraction device one-level heavy out and back extraction device one-level light phase export; The import of back extraction device one-level mulser is connected with reverse-extraction agent import of back extraction device one-level and back extraction device one-level solvent inlet, and the outlet of back extraction device one-level mulser is connected with the import of back extraction device one-level mixed phase.
Above-mentioned phosphoric acid purification device; Wherein: extraction plant one-level light phase export, be connected with the import of extraction plant secondary solvent through the pipeline that is provided with pump; Extraction plant secondary heavy out, be connected with the import of extraction plant one-level phosphoric acid through the pipeline that is provided with pump, extraction plant secondary light phase export is connected with washing device one-level solvent inlet; Washing device one-level light phase export, be connected with the secondary solvent import through the pipeline that is provided with pump; Washing device secondary heavy out, be connected with washing device one-level detergent inlet through the pipeline that is provided with pump, washing device secondary light phase export is connected with back extraction device one-level solvent inlet; Back extraction device one-level light phase export, be connected with the import of back extraction device secondary solvent through the pipeline that is provided with pump; Back extraction device secondary heavy out, be connected with the import of back extraction device one-level reverse-extraction agent through the pipeline that is provided with pump, back extraction device secondary light phase export is connected with extraction plant one-level solvent inlet.
Above-mentioned phosphoric acid purification device; Wherein: three grades of solvent inlets of extraction plant secondary light phase export and extraction plant are connected; Three grades of heavy outs of extraction plant, be connected with the import of extraction plant secondary phosphoric acid through the pipeline that is provided with pump, three grades of phase splitting device light phase exports of extraction plant are connected with washing device one-level solvent inlet; Three grades of solvent inlets of washing device secondary light phase export and washing device are connected; Three grades of heavy outs of washing device, be connected with washing device secondary detergent inlet through the pipeline that is provided with pump; Three grades of phase splitting device heavy outs of washing device are connected with the secondary detergent inlet, and three grades of phase splitting device light phase exports of washing device are connected with back extraction device one-level solvent inlet; Three grades of solvent inlets of back extraction device secondary light phase export and back extraction device are connected, and three grades of phase splitting device heavy outs of back extraction device are connected with the import of back extraction device secondary reverse-extraction agent, and three grades of phase-splittings of back extraction device are established light phase export and are connected with extraction plant one-level solvent inlet.
The present invention compared with prior art; Can know from above technical scheme; Different according to purify requiring, constitute extraction plant, washing device and the back extraction device of phosphoric acid purification device, can select for use one group of mulser and phase splitting device single-stage or by many groups mulser and phase splitting device combine multistage.In multistage phosphoric acid purification device; Feed phosphoric acid (fresh phosphoric), washing acid (purifying phosphoric acid), de-salted water are all added by final stage mulser respective inlets; The no-load solvent of extraction plant one-level solvent inlet is from the light phase export of back extraction device final stage phase splitting device; The loaded solvent of washing device one-level solvent inlet is from the light phase export of extraction plant final stage phase splitting device, and the loaded solvent of back extraction device one-level solvent inlet is from the light phase export of washing device final stage phase splitting device.Because the mulser mass transfer area is big, mass-transfer efficiency is high.The mixed solution that comes out from mulser is easy to phase-splitting, thereby guarantees to divide phase effect.The purifying phosphoric acid foreign matter content that obtains is low, but through refining production food grade and electron-level phosphoric acid.System's material loading level is little, avoids hazardous material (fluids) (like phosphoric acid, organic extractant) to leak in a large number and the peace ring accident that causes; The mulser floor space is little, and appliance arrangement is arranged simple, and factory building can be realized miniaturized; The mulser cost is low, can save facility investment.
Description of drawings
Fig. 1 is the single step arrangement synoptic diagram of invention;
Fig. 2 is the secondary structure synoptic diagram of invention;
Fig. 3 is the tertiary structure synoptic diagram of invention.
Mark among the figure:
1, extraction plant one-level mulser, 2, extraction plant one-level phase splitting device, 3, the import of extraction plant one-level mulser; 4, extraction plant one-level mulser outlet, 5, the import of extraction plant one-level mixed phase, 6, extraction plant one-level heavy out; 7, extraction plant one-level light phase export, 8, the import of extraction plant one-level phosphoric acid, 9, extraction plant one-level solvent inlet; 10, extraction plant secondary mulser, 11, extraction plant secondary phase splitting device, 12, the import of extraction plant secondary mulser; 13, extraction plant secondary mulser outlet, 14, the import of extraction plant secondary mixed phase, 15, extraction plant secondary heavy out; 16, extraction plant secondary light phase export, 17, the import of extraction plant secondary phosphoric acid, 18, the import of extraction plant secondary solvent; 19, three grades of mulsers of extraction plant, 20, three grades of phase splitting devices of extraction plant, 21, three grades of mulser imports of extraction plant; 22, three grades of mulser outlets of extraction plant; 23, three grades of mixed phase imports of extraction plant, 24, three grades of heavy outs of extraction plant, 25, three grades of light phase exports of extraction plant; 26, three grades of phosphoric acid imports of extraction plant, 27, three grades of solvent inlets of extraction plant.28, washing device one-level mulser, 29, washing device one-level phase splitting device, 30, the import of washing device one-level mulser; 31, washing device one-level mulser outlet, 32, the import of washing device one-level mixed phase, 33, washing device one-level heavy out; 34, washing device one-level light phase export, 35, washing device one-level detergent inlet, 36, washing device one-level solvent inlet; 37, washing device secondary mulser, 38, washing device secondary phase splitting device, 39, the import of washing device secondary mulser; 40, washing device secondary mulser outlet, 41, the import of washing device secondary mixed phase, 42, washing device secondary heavy out; 43, washing device secondary light phase export, 44, washing device secondary detergent inlet, 45, the import of washing device secondary solvent; 46, three grades of mulsers of washing device, 47, three grades of phase splitting devices of washing device, 48, three grades of mulser imports of washing device, 49, three grades of mulsers outlets of washing device; 50, three grades of mixed phase imports of washing device, 51, three grades of heavy outs of washing device, 52, three grades of light phase exports of washing device, 53, three grades of detergent inlet of washing device; 54, three grades of solvent inlets of washing device, 55, back extraction device one-level mulser, 56, back extraction device one-level phase splitting device, 57, the import of back extraction device one-level mulser; 58, back extraction device one-level mulser outlet, 59, the import of back extraction device one-level mixed phase, 60, back extraction device one-level heavy out; 61, back extraction device one-level light phase export, 62, the import of back extraction device one-level reverse-extraction agent, 63, back extraction device one-level solvent inlet; 64, back extraction device secondary mulser, 65, back extraction device secondary phase splitting device, 66, the import of back extraction device secondary mulser; 67, back extraction device secondary mulser outlet, 68, the import of back extraction device secondary mixed phase, 69, back extraction device secondary heavy out; 70, back extraction device secondary light phase export, 71, the import of back extraction device secondary reverse-extraction agent, 72, the import of back extraction device secondary solvent; 73, three grades of mulsers of back extraction device, 74, three grades of phase splitting devices of back extraction device, 75, three grades of mulser imports of back extraction device; 76, three grades of mulser outlets of back extraction device; 77, three grades of mixed phase imports of back extraction device, 78, three grades of heavy outs of back extraction device, 79, three grades of light phase exports of back extraction device; 80, three grades of reverse-extraction agent imports of back extraction device, 81, three grades of solvent inlets of back extraction device.
Embodiment
Below in conjunction with accompanying drawing,, specify as follows its embodiment of phosphoric acid purification device, structure, characteristic and the effect thereof that proposes according to the present invention:
Embodiment 1
Referring to Fig. 1; Adopt the phosphoric acid purification device of single-stage extraction, washing and back extraction; Comprise extraction plant, washing device and back extraction device; Wherein: extraction plant one-level light phase export 7 is connected with washing device one-level solvent inlet 36, and washing device one-level light phase export 34 is connected with back extraction device one-level solvent inlet 63, and back extraction device one-level light phase export 61 is connected with extraction plant one-level solvent inlet 9;
Extraction plant comprises extraction plant one-level mulser 1 and extraction plant one-level phase splitting device 2; Extraction plant one-level mulser 1 is provided with extraction plant one-level mulser import 3 and extraction plant one-level mulser outlet 4; Extraction plant one-level phase splitting device 2 is provided with extraction plant one-level mixed phase import 5, extraction plant one-level heavy out 6 and extraction plant one-level light phase export 7; Extraction plant one-level mulser import 3 is connected with extraction plant one-level phosphoric acid import 8 and extraction plant one-level solvent inlet 9, and extraction plant one-level mulser outlet 4 is connected with extraction plant one-level mixed phase import 5;
Washing device comprises washing device one-level mulser 28 and washing device one-level phase splitting device 29; Washing device one-level mulser 28 is provided with washing device one-level mulser import 30 and washing device one-level mulser outlet 31; Washing device one-level phase splitting device 29 is provided with washing device one-level mixed phase import 32, washing device one-level heavy out 33 and washing device one-level light phase export 34; Washing device one-level mulser import 30 is connected with washing device one-level detergent inlet 35 and washing device one-level solvent inlet 36, and washing device one-level mulser outlet 31 is connected with washing device one-level mixed phase import 32;
Back extraction device comprises back extraction device one-level mulser 55 and back extraction device one-level phase splitting device 56; Back extraction device one-level mulser 55 is provided with back extraction device one-level mulser import 57 and back extraction device one-level mulser outlet 58; Back extraction device one-level phase splitting device 56 is provided with back extraction device one-level mixed phase import 59, back extraction device one-level heavy out 60 and back extraction device one-level light phase export 61; Back extraction device one-level mulser import 57 is connected with back extraction device one-level reverse-extraction agent import 62 and back extraction device one-level solvent inlet 63, and back extraction device one-level mulser outlet 58 is connected with back extraction device one-level mixed phase import 59.
Wherein: mulser adopts the pipeline high-shearing dispersion emulsifying machine, and phase splitting device adopts phase-splitting groove, clarifying tank etc. to reach the equipment of phase-splitting purpose.
During use; Phosphoric acid gets into extraction plant one-level mulser 1 from extraction plant one-level solvent inlet 9 through extraction plant one-level mulser import 3 from extraction plant one-level phosphoric acid import 8, extraction agent (from the no-load solvent of back extraction device one-level light phase export 61); Extraction agent and phosphoric acid are accomplished the efficient mass transfer process in extraction plant one-level mulser 1; The mixed phase that forms comes out from extraction plant one-level mulser outlet 4, gets into extraction plant one-level phase splitting device 2 through extraction plant one-level mixed phase import 5.In extraction plant one-level phase splitting device 2, realize the layering of mixed phase; Form light, weigh two phases; Phosphoric acid is extracted the agent extraction becomes loaded solvent from extraction plant one-level light phase export 7 entering washing devices; Impurity in the phosphoric acid gets into heavy phase becomes raffinate from 6 discharges of extraction plant one-level heavy out, thereby realizes extracting and separating.
At washing device; Purifying phosphoric acid gets into washing device one-level mulsers 28 from washing device one-level solvent inlet 36 through washing device one-level mulser import 30 from washing device one-level detergent inlet 35, the loaded solvent that comes from extraction plant; Loaded solvent and phosphoric acid are accomplished the efficient mass transfer process in washing device one-level mulser 28; The mixed phase that forms comes out from washing device one-level mulser outlet 31, gets into washing device one-level phase splitting device 29 through washing device one-level mixed phase import 32.In washing device one-level phase splitting device 29, realize the layering of mixed phase; Form light, weigh two phases; Impurity entering heavy phase in the loaded solvent becomes washes spent acid from 33 discharges of washing device one-level heavy out; Be washed the loaded solvent that has purified and get into back extraction devices, thereby realize washing, purifying from washing device one-level light phase export 34.
At back extraction device; De-salted water is from back extraction device one-level reverse-extraction agent import 62, get into back extraction device one-level mulsers 55 from back extraction device one-level solvent inlet 63 through back extraction device one-level mulser import 57 from the loaded solvent of washing device; Loaded solvent and de-salted water are accomplished the efficient mass transfer process in back extraction device one-level mulser 55; The mixed phase that forms comes out from back extraction device one-level mulser outlet 58, gets into back extraction device one-level phase splitting device 56 through back extraction device one-level mixed phase import 59.In back extraction device one-level phase splitting device 56, realize the layering of mixed phase; Form light, weigh two phases; Phosphoric acid in the loaded solvent gets into heavy phase becomes purifying phosphoric acid from 60 discharges of back extraction device one-level heavy out; Loaded solvent removes and then becomes no-load solvent behind the phosphoric acid and return extraction plant from back extraction device one-level light phase export 61, thereby realizes recycling of extraction agent.
Referring to Fig. 2; Adopt the phosphoric acid purification device of secondary extraction, washing and back extraction; Comprise extraction plant, washing device and back extraction device; Wherein: extraction plant one-level light phase export 7, be connected with extraction plant secondary solvent import 18 through the pipeline that is provided with pump, extraction plant secondary heavy out 15, be connected with extraction plant one-level phosphoric acid import 8 through the pipeline that is provided with pump, extraction plant secondary light phase export 16 is connected with washing device one-level solvent inlet 36;
Washing device one-level light phase export 34, be connected with secondary solvent import 45 through the pipeline that is provided with pump; Washing device secondary heavy out 42, be connected with washing device one-level detergent inlet 35 through the pipeline that is provided with pump, washing device secondary light phase export 43 is connected with back extraction device one-level solvent inlet 63;
Back extraction device one-level light phase export 61, be connected with back extraction device secondary solvent import 72 through the pipeline that is provided with pump; Back extraction device secondary heavy out 69, be connected with back extraction device one-level reverse-extraction agent import 62 through the pipeline that is provided with pump, back extraction device secondary light phase export 70 is connected with extraction plant one-level solvent inlet 9.
All the other are with embodiment 1.
During use; The phosphoric acid that extraction plant secondary heavy out 15 comes out; Under the effect of pump, get into extraction plant one-level mulser 1 from extraction plant one-level solvent inlet 9 through extraction plant one-level mulser import 3 from extraction plant one-level phosphoric acid import 8, extraction agent (from the no-load solvent of back extraction device secondary light phase export 70); Extraction agent and phosphoric acid are accomplished the efficient mass transfer process in extraction plant one-level mulser 1; The mixed phase that forms comes out from extraction plant one-level mulser outlet 4, gets into extraction plant one-level phase splitting device 2 through extraction plant one-level mixed phase import 5.In extraction plant one-level phase splitting device 2, realize the layering of mixed phase, formation light, weigh two phases.Impurity in the phosphoric acid gets into heavy phase becomes raffinate from 6 discharges of extraction plant one-level heavy out.Phosphoric acid is extracted agent extraction to be become loaded solvent and comes out from extraction plant one-level light phase export 7, under the effect of pump, gets into extraction plant secondary mulsers 10 through extraction plant secondary solvent import 18 through extraction plant secondary mulser import 12.Feed phosphoric acid (fresh phosphoric) gets into extraction plant secondary mulser 10 through extraction plant secondary phosphoric acid import 17 through extraction plant secondary mulser import 12; Efficient mass transfer effect through extraction plant secondary mulser 10; Further improve the phosphoric acid extraction rate; The mixed phase that forms comes out from extraction plant secondary mulser outlet 13, gets into extraction plant secondary phase splitting device 11 through extraction plant secondary mixed phase import 14, in extraction plant secondary phase splitting device 11, realizes the layering of mixed phase; Form light, weigh two phases; Most of phosphoric acid is extracted agent extraction entering and gently forms loaded solvent mutually from extraction plant secondary light phase export 16 entering washing devices, and heavy phase is then returned extraction plant one-level mulser 1 through extraction plant secondary heavy out 15, thereby realizes extracting and separating.
At washing device; The phosphoric acid that washing device secondary heavy out 42 comes out; Under the effect of pump, get into washing device one-level mulsers 28 from washing device one-level solvent inlet 36 through washing device one-level mulser import 30 from washing device one-level detergent inlet 35, the loaded solvent that comes from extraction plant; Loaded solvent and phosphoric acid are accomplished the efficient mass transfer process in washing device one-level mulser 28; The mixed phase that forms comes out from washing device one-level mulser outlet 31, gets into washing device one-level phase splitting device 29 through washing device one-level mixed phase import 32.In washing device one-level phase splitting device 29, realize the layering of mixed phase, formation light, weigh two phases.Impurity entering heavy phase in the loaded solvent becomes washes spent acid from 33 discharges of washing device one-level heavy out; Be washed the loaded solvent that has purified and come out, under the effect of pump, get into washing device secondary mulsers 37 through washing device secondary mulser import 39 through washing device secondary solvent import 45 from washing device one-level light phase export 34.Washing acid (purifying phosphoric acid) gets into washing device secondary mulser 37 through washing device secondary detergent inlet 44 through washing device secondary mulser import 39; Efficient mass transfer effect through washing device secondary mulser 37; Further improve the washing effect that load is dissolved; The mixed phase that forms comes out from washing device secondary mulser outlet 40, gets into washing device secondary phase splitting device 38 through washing device secondary mixed phase import 41, in two washing device secondary phase splitting devices 38, realizes the layering of mixed phase; Form light, weigh two phases; Be washed the loaded solvent that has purified and get into back extraction devices from washing device secondary light phase export 43, the impurity in the loaded solvent gets into heavy phase and returns washing device one-level mulser 28 through washing device secondary heavy out 42, thereby realizes washing, purifying.
At back extraction device; The phosphoric acid that back extraction device secondary heavy out 69 comes out; Under the effect of pump, get into back extraction device one-level mulsers 55 from back extraction device one-level solvent inlet 63 through back extraction device one-level mulser import 57 from back extraction device one-level reverse-extraction agent import 62, the loaded solvent that comes from washing device; Loaded solvent and phosphoric acid are accomplished the efficient mass transfer process in back extraction device one-level mulser 55; The mixed phase that forms comes out from back extraction device one-level mulser outlet 58, gets into back extraction device one-level phase splitting device 56 through back extraction device one-level mixed phase import 59.In back extraction device one-level phase splitting device 56, realize the layering of mixed phase, formation light, weigh two phases.Phosphoric acid in the loaded solvent gets into heavy phase becomes purifying phosphoric acid from 60 discharges of back extraction device one-level heavy out; The loaded solvent of being taken off part phosphoric acid comes out from back extraction device one-level light phase export 61, under the effect of pump, gets into back extraction device secondary mulser 64 through back extraction device secondary solvent import 72 through back extraction device secondary mulser import 66.De-salted water gets into back extraction device secondary mulser 64 through back extraction device secondary reverse-extraction agent import 71 through back extraction device secondary mulser import 66; Efficient mass transfer effect through back extraction device secondary mulser 64; Further improve the back extraction effect that load is dissolved; The mixed phase that forms comes out from back extraction device secondary mulser outlet 67; Get into back extraction device secondary phase splitting devices 65 through back extraction device secondary mixed phase import 68, the layering of realization mixed phase back extraction device secondary phase splitting device 65 in, formation light, weigh two phases; Loaded solvent removes and then becomes no-load solvent behind the phosphoric acid and return extraction plant from back extraction device secondary light phase export 70, and the phosphoric acid in the loaded solvent gets into heavy phase and returns back extraction device one-level mulser 55 through back extraction device secondary heavy out 69.
Embodiment 3
Referring to Fig. 3; Adopt the phosphoric acid purification device of three grades of extractions, washing and back extractions; Comprise extraction plant, washing device and back extraction device; Three grades of solvent inlets 27 of extraction plant secondary light phase export 16 and extraction plant are connected, and three grades of heavy outs 24 of extraction plant, are connected with extraction plant secondary phosphoric acid import 17 through the pipeline that is provided with pump, and three grades of phase splitting device light phase exports 25 of extraction plant are connected with washing device one-level solvent inlet 36;
Three grades of solvent inlets 54 of washing device secondary light phase export 43 and washing device are connected; Three grades of heavy outs 51 of washing device, be connected with washing device secondary detergent inlet 44 through the pipeline that is provided with pump; Three grades of phase splitting device heavy outs 51 of washing device are connected with secondary detergent inlet 44, and three grades of phase splitting device light phase exports 52 of washing device are connected with back extraction device one-level solvent inlet 63;
Three grades of solvent inlets 81 of back extraction device secondary light phase export 70 and back extraction device are connected; Three grades of phase splitting device heavy outs 78 of back extraction device are connected with back extraction device secondary reverse-extraction agent import 71, and three grades of phase-splittings of back extraction device are established light phase export 79 and are connected with extraction plant one-level solvent inlet 9.
All the other are with embodiment 2.
During use, the phosphoric acid that three grades of heavy outs 24 of extraction plant come out returns extraction plant secondary mulser 10 under the effect of pump; Loaded solvent comes out from extraction plant secondary light phase export 16; Under the effect of pump, get into three grades of mulsers 19 of extraction plant through three grades of phosphoric acid imports of extraction plant 26 through three grades of mulser imports of extraction plant 21 through three grades of solvent inlets 27 of extraction plant, feed phosphoric acid (fresh phosphoric); Efficient mass transfer effect through multistage mulser has improved the phosphoric acid extraction rate as much as possible; The mixed phase that forms comes out from three grades of mulser outlets 22 of extraction plant; Get into three grades of phase splitting devices 20 of extraction plant through three grades of mixed phase imports of extraction plant 23; In three grades of phase splitting devices 20 of extraction plant, realize the layering of mixed phase; Form light, weigh two phases; Most of phosphoric acid is extracted the agent extraction and gets into and gently form loaded solvent mutually and come out to get into washing device from three grades of light phase exports of extraction plant 25, and heavy phase is then returned extraction plant secondary mulser 10 through three grades of heavy outs 24 of extraction plant, thereby realizes extracting and separating.
At washing device; Loaded solvent comes out from washing device secondary light phase export 43, under the effect of pump, gets into washing device three grade mulsers 46 through three grades of detergent inlet of washing device 53 through three grades of mulser imports of washing device 48 through three grades of solvent inlets 54 of washing device, washing acid (purifying phosphoric acid).Efficient mass transfer effect through multistage mulser has improved the phosphoric acid washing effect as much as possible; The mixed phase that forms comes out from three grades of mulser outlets 49 of washing device; Get into three grades of phase splitting devices 47 of washing device through three grades of mixed phase imports of washing device 50; In three grades of phase splitting devices 47 of washing device, realize the layering of mixed phase; Form light, weigh two phases, be washed the loaded solvent that has purified and come out to get into back extraction device from three grades of light phase exports of washing device 52, the impurity in the loaded solvent gets into heavy phase and returns washing device secondary mulser 37 through three grades of heavy outs 51 of washing device.Through three grades of washings, the impurity major part in the loaded solvent is got into heavy phase by phosphoric acid washing and finally discharges from washing device one-level heavy out 33, thereby realizes washing, purifying.
At back extraction device, the phosphoric acid that three grades of heavy outs 78 of back extraction device come out returns back extraction device secondary mulser 64 under the effect of pump; The loaded solvent that contains part phosphoric acid comes out from back extraction device secondary phase splitting device 65 light phase exports; Under the effect of pump, get into three grades of mulsers 73 of back extraction device through three grades of reverse-extraction agent imports of back extraction device 80 through three grades of mulser imports of back extraction device 75 through three grades of solvent inlets 81 of back extraction device, de-salted water; Through the efficient mass transfer effect of multistage mulser, improved phosphoric acid back extraction effect as much as possible; The mixed phase that forms comes out from three grades of mulser outlets 76 of back extraction device; Get into three grades of phase splitting devices 74 of back extraction device through three grades of mixed phase imports of back extraction device 77; In three grades of phase splitting devices 74 of back extraction device, realize the layering of mixed phase; Form light, weigh two phases; Loaded solvent removes and then becomes no-load solvent behind the phosphoric acid and come out to return extraction plant from three grades of light phase exports of back extraction device 79, and the phosphoric acid in the loaded solvent gets into heavy phase and returns back extraction device secondary mulser 64 through back extraction device heavy out 78.Through three grades of back extractions, the phosphoric acid in the loaded solvent is got into heavy phase by the de-salted water back extraction and finally discharges from back extraction device one-level heavy out 60, becomes purifying phosphoric acid.All the other principle of work are with embodiment 2.
Above mulser all adopts the pipeline high-shearing dispersion emulsifying machine.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction; Anyly do not break away from technical scheme content of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (3)
1. phosphoric acid purification device; Comprise extraction plant, washing device and back extraction device; It is characterized in that: extraction plant one-level light phase export (7) is connected with washing device one-level solvent inlet (36); Washing device one-level light phase export (34) is connected with back extraction device one-level solvent inlet (63), and back extraction device one-level light phase export (61) is connected with extraction plant one-level solvent inlet (9);
Extraction plant comprises extraction plant one-level mulser (1) and extraction plant one-level phase splitting device (2); Extraction plant one-level mulser (1) is provided with extraction plant one-level mulser import (3) and extraction plant one-level mulser outlet (4); Extraction plant one-level phase splitting device (2) is provided with extraction plant one-level mixed phase import (5), extraction plant one-level heavy out (6) and extraction plant one-level light phase export (7); Extraction plant one-level mulser import (3) is connected with extraction plant one-level phosphoric acid import (8) and extraction plant one-level solvent inlet (9), and extraction plant one-level mulser outlet (4) is connected with extraction plant one-level mixed phase import (5);
Washing device comprises washing device one-level mulser (28) and washing device one-level phase splitting device (29); Washing device one-level mulser (28) is provided with washing device one-level mulser import (30) and washing device one-level mulser outlet (31); Washing device one-level phase splitting device (29) is provided with washing device one-level mixed phase import (32), washing device one-level heavy out (33) and washing device one-level light phase export (34); Washing device one-level mulser import (30) is connected with washing device one-level detergent inlet (35) and washing device one-level solvent inlet (36), and washing device one-level mulser outlet (31) is connected with washing device one-level mixed phase import (32);
Back extraction device comprises back extraction device one-level mulser (55) and back extraction device one-level phase splitting device (56); Back extraction device one-level mulser (55) is provided with back extraction device one-level mulser import (57) and back extraction device one-level mulser outlet (58); Back extraction device one-level phase splitting device (56) is provided with back extraction device one-level mixed phase import (59), back extraction device one-level heavy out (60) and back extraction device one-level light phase export (61); Back extraction device one-level mulser import (57) is connected with back extraction device one-level reverse-extraction agent import (62) and back extraction device one-level solvent inlet (63), and back extraction device one-level mulser outlet (58) is connected with back extraction device one-level mixed phase import (59).
2. phosphoric acid purification device as claimed in claim 1; It is characterized in that: extraction plant one-level light phase export (7) is connected with extraction plant secondary solvent import (18) through pipeline; Extraction plant secondary heavy out (15) is connected with extraction plant one-level phosphoric acid import (8) through pipeline, and extraction plant secondary light phase export (16) is connected with washing device one-level solvent inlet (36);
Washing device one-level light phase export (34) is connected with secondary solvent import (45) through the pipeline that is provided with pump; Washing device secondary heavy out (42) is connected with washing device one-level detergent inlet (35) through pipeline, and washing device secondary light phase export (43) is connected with back extraction device one-level solvent inlet (63);
Back extraction device one-level light phase export (61) is connected with back extraction device secondary solvent import (72) through pipeline; Back extraction device secondary heavy out (69) is connected with back extraction device one-level reverse-extraction agent import (62) through pipeline, and back extraction device secondary light phase export (70) is connected with extraction plant one-level solvent inlet (9).
3. phosphoric acid purification device as claimed in claim 2; It is characterized in that: extraction plant secondary light phase export (16) is connected with three grades of solvent inlets of extraction plant (27); Three grades of heavy outs of extraction plant (24) are connected with extraction plant secondary phosphoric acid import (17) through pipeline, and three grades of phase splitting device light phase exports of extraction plant (25) are connected with washing device one-level solvent inlet (36);
Washing device secondary light phase export (43) is connected with three grades of solvent inlets of washing device (54); Three grades of heavy outs of washing device (51) are connected with washing device secondary detergent inlet (44) through pipeline; Three grades of phase splitting device heavy outs of washing device (51) are connected with secondary detergent inlet (44), and three grades of phase splitting device light phase exports of washing device (52) are connected with back extraction device one-level solvent inlet (63);
Back extraction device secondary light phase export (70) is connected with three grades of solvent inlets of back extraction device (81); Three grades of phase splitting device heavy outs of back extraction device (78) are connected with back extraction device secondary reverse-extraction agent import (71), and three grades of phase-splittings of back extraction device are established light phase export (79) and are connected with extraction plant one-level solvent inlet (9).
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| CN2009101026313A CN101927984B (en) | 2009-06-22 | 2009-06-22 | Phosphoric acid purification device |
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| CN2009101026313A CN101927984B (en) | 2009-06-22 | 2009-06-22 | Phosphoric acid purification device |
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| CN101927984B true CN101927984B (en) | 2012-07-18 |
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| CN1654317A (en) * | 2004-12-24 | 2005-08-17 | 贵州宏福实业开发有限总公司 | Purified wet-process technique for producing phosphoric acid and equipment thereof |
| JP2006315931A (en) * | 2005-05-16 | 2006-11-24 | Nippon Refine Kk | Method and apparatus for recovering phosphoric acid from metal ion-containing mixed acid aqueous solution containing phosphoric acid and at least one kind of acid except phosphoric acid |
| CN101274755A (en) * | 2008-04-18 | 2008-10-01 | 侯炎学 | Device for wet phosphoric acid refining and high-purity ammonium molybdate preparation |
| CN201427860Y (en) * | 2009-06-22 | 2010-03-24 | 瓮福（集团）有限责任公司 | Phosphoric acid purification device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1654317A (en) * | 2004-12-24 | 2005-08-17 | 贵州宏福实业开发有限总公司 | Purified wet-process technique for producing phosphoric acid and equipment thereof |
| JP2006315931A (en) * | 2005-05-16 | 2006-11-24 | Nippon Refine Kk | Method and apparatus for recovering phosphoric acid from metal ion-containing mixed acid aqueous solution containing phosphoric acid and at least one kind of acid except phosphoric acid |
| CN101274755A (en) * | 2008-04-18 | 2008-10-01 | 侯炎学 | Device for wet phosphoric acid refining and high-purity ammonium molybdate preparation |
| CN201427860Y (en) * | 2009-06-22 | 2010-03-24 | 瓮福（集团）有限责任公司 | Phosphoric acid purification device |
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Inventor after: He Haoming Inventor after: Wang Shaodong Inventor after: Li Honglin Inventor after: Wang Ping Inventor after: Yu Zhihong Inventor before: Wang Shaodong Inventor before: Li Honglin Inventor before: Wang Ping Inventor before: Yu Zhihong |
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