CN106219612B - A kind of processing method of waste chlorine - Google Patents
A kind of processing method of waste chlorine Download PDFInfo
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- CN106219612B CN106219612B CN201610505088.1A CN201610505088A CN106219612B CN 106219612 B CN106219612 B CN 106219612B CN 201610505088 A CN201610505088 A CN 201610505088A CN 106219612 B CN106219612 B CN 106219612B
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- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 162
- 239000000460 chlorine Substances 0.000 title claims abstract description 162
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 162
- 239000002699 waste material Substances 0.000 title claims abstract description 102
- 238000003672 processing method Methods 0.000 title claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000007789 gas Substances 0.000 claims abstract description 53
- 238000012545 processing Methods 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000007787 solid Substances 0.000 claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000001301 oxygen Substances 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 70
- 239000002994 raw material Substances 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 15
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 239000000376 reactant Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 230000005674 electromagnetic induction Effects 0.000 claims description 3
- 238000007885 magnetic separation Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 230000036632 reaction speed Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 230000002459 sustained effect Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 abstract description 23
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 18
- 239000000126 substance Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 230000002745 absorbent Effects 0.000 abstract description 2
- 239000002250 absorbent Substances 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 238000006479 redox reaction Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 210000000038 chest Anatomy 0.000 description 35
- 239000000047 product Substances 0.000 description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 239000003708 ampul Substances 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 8
- 239000010453 quartz Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 235000013980 iron oxide Nutrition 0.000 description 7
- 239000012265 solid product Substances 0.000 description 7
- 230000008676 import Effects 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 3
- 229910001453 nickel ion Inorganic materials 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910001510 metal chloride Inorganic materials 0.000 description 2
- 210000004400 mucous membrane Anatomy 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 206010008479 Chest Pain Diseases 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 206010012735 Diarrhoea Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 206010037423 Pulmonary oedema Diseases 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002620 method output Methods 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 208000005333 pulmonary edema Diseases 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 210000001533 respiratory mucosa Anatomy 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/10—Halides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of processing method of waste chlorine, using the kin metal such as iron powder or nonmetallic reducing substances, or the mixture containing such material, absorbs waste chlorine under solid forms.Can be iron powder or the hybrid solid containing iron powder, with oxidizing gas such as the waste chlorine in mixed gas, oxygen redox reaction occurs for solid at a certain temperature, and chlorine is absorbed.The processing of waste chlorine is carried out by the method, waste chlorine is fully used, iron chloride has been made and iron oxide product creates economic benefit；Pollution caused by discharging after the high alkali liquid agent absorbent chlorine of use cost has been reduced or avoided；Iron chloride, the iron oxide product produced reach country-level and secondary product requirement.The method of the invention is scientific and reasonable；Waste chlorine can effectively be handled；Advantageously reduce discharge of the chlorine into environment.
Description
Technical field
The invention belongs to chemical industry and metallurgy industry waste chlorine process field, and in particular to a kind of method of waste chlorine processing.
Background technology
Chlorine is a kind of toxic gas, and it mainly invades human body by respiratory tract and is dissolved in the moisture contained by mucous membrane,
Hypochlorous acid and hydrochloric acid are generated, upper respiratory tract mucous membrane is caused to damage：Hypochlorous acid makes tissue by strong oxidation；Hydrochloric acid stimulates glutinous
Inflammatory swelling occurs for film, makes respiratory mucosa edema, largely secretes mucus, cause to have difficulty in breathing, so chlorine poisoning is obvious
Symptom is that violent cough occurs.During severe symptoms, it may occur that pulmonary edema, make ringing difficult and lethal die.Entered by esophagus
The chlorine of human body can make one Nausea and vomiting, chest pain and diarrhoea.0.001mg containing chlorine can at most be allowed in 1L air, exceeded
This amount will cause human body to be poisoned.The chlorine of free state is present in atmosphere in nature, be damage the ozone layer it is main
One of simple substance.Chlorine do many harms to human body and environment.
Chemical industry and metal smelt production in output waste chlorine be to environment produce significant damage waste gas, processing cost
Height, economic effect is not produced, also result in environmental pollution, harm society.
In the waste chlorine processing of the past few decades, because chlorine content is low in waste chlorine, content fluctuation, is mixed with
The influence of many factors such as water vapour, processing mode are exactly to be discharged after being absorbed using the solution of alkaline matter substantially, such as
Sodium hydroxide solution, magnesium oxide solution, the aqueous solution etc. for being mixed with iron powder, processing cost is high, caused waste liquor contamination environment, useless chlorine
Aspiration is incomplete.
The content of the invention
To solve existing problem above, the invention discloses a kind of processing method of waste chlorine, comprise the following steps：
(1) raw material for absorbing the gases such as chlorine is added to 10 ° from top to bottom consistent in a manner of being continuously added to
In the reative cell of~35 ° of overturning angles, raw material is added by upper end, and waste chlorine is entered by lower end；Reative cell by heat-resisting more than 800 DEG C and
The material of chlorine-resistant gas corrosion is made；
(2) install vibrator additional on reative cell, make reative cell that the low amplitude vibrations of controllable certain frequency, reative cell bottom occur
The elongated strip or dot bulge of certain density are set on face, make to be added to automatic when the iron powder in reative cell flows from top to bottom
Tile and constantly roll；
(3) raw material, which adds speed, makes on the bottom surface of reative cell at least 2/3rds area be covered with raw material；
(4) reacting outdoor wall surrounding is provided with the permanent magnet or electromagnet of certain magnetic field intensity, makes raw material in the work in magnetic field
Reaction chamber wall surrounding is adsorbed onto under, increases the contact area between raw material and the waste chlorine passed through, while in the work in magnetic field
With lower fixed raw material, fly upward raw material；
(5) this course of reaction is exothermic process, and reactant concentration and reaction speed determine the temperature of whole system, work as temperature
When spending high, the reactant concentration mode in the gas dilution gas of reaction that is not involved in that can be released by being introduced into exhaust outlet is controlled
System；Energy can be provided when temperature of reaction system is too low is unable to sustained response by way of electromagnetic induction, microwave radiation or electric heating
Measure and heated to system, make system temperature scope controllable between 350 DEG C to 500 DEG C；
(6) chlorine gas concentration is higher, and reaction start-up temperature is lower：When chlorine gas concentration is up to more than 90%, start reaction
Inlet temperature needs more than 60 DEG C；When chlorine gas concentration is as little as less than 1%, inlet temperature needs to control at 380 DEG C；According to chlorine
The various concentrations control reaction start-up temperature of gas；
(7) waste chlorine inflow velocity is controlled, chlorine is fully reacted with raw material, and flies upward raw material, gas flow rate is not
Higher than 4m/m2s；
(8) 380~500 DEG C of reaction chamber temperature is controlled, product chlorinated thing is kept gaseous state from outflow suitable for reading, outflow
Chloride gas enter cooling-sedimentation separator, be cooled to 100~200 DEG C of temperature, powder product be made after collecting chloride,
After the separation that 100~200 DEG C of temperature gas may the also chlorine containing denier, it is outer after the absorption of end-o f-pipe -control section to arrange；
(9) oxygen in mixed gas also reacts generation oxide solid with raw material, in the case where the raw material being continuously added into promotes
Discharged from the outlet of reative cell least significant end, oxide powder product is made；
(10) reaction terminates that the raw material not reacted completely may be contained in rear product, is separated, improved by the method for magnetic separation
The quality of product chlorinated thing, oxide；
(11) 100~200 DEG C of the end-o f-pipe -control section keeping temperature of reative cell, gas is outer after absorption is handled after separation arranges.
(12) it can be up and down superimposed as needed in reaction system and place multiple reative cells, before whole waste chlorine processing system
The connection of equipment is kept closed afterwards.
The raw material is iron powder or the mixture containing iron powder.
The end-o f-pipe -control section of the reaction system is the sieve-like wall being made up of granularity in the iron powder group of 20~60 mesh.
The principle of this invention：Using iron powder, or the mixture containing iron powder, absorb waste chlorine under solid forms.Iron powder
Or the hybrid solid containing iron powder, at a certain temperature the oxidizing gas such as the waste chlorine in solid and mixed gas, oxygen send out
Raw redox reaction, chlorine are absorbed.
Beneficial effect：The processing of waste chlorine is carried out by the method, waste chlorine is fully used, iron chloride has been made
Economic benefit is created with iron oxide product；Discharged after the high alkali liquid agent absorbent chlorine of use cost has been reduced or avoided
Caused by pollution；The outer gas chlorinty arranged can be down to 10mg/m after handling waste chlorine by the method3Below；Produce
Iron chloride, iron oxide product reach country-level and secondary product requirement.The method of the invention is scientific and reasonable；Can effectively it locate
Manage waste chlorine；Advantageously reduce discharge of the chlorine into environment.
Embodiment
In conjunction with the embodiments, the present invention is described in further details.
Embodiment 1
A kind of method of waste chlorine processing, comprises the following steps：
1) waste chlorine and iron powder counter current contacting in thorax react, react under certain temperature, generation iron chloride, chlorine quilt
Absorb；
2) 0.05~0.5 meter of the height of thorax inner space, 0.1~2 square metre of cross-sectional area, 1~20 meter of length are reacted
Rectangular parallelepiped structure, reaction thorax are made using the material of heat-resisting 800 DEG C and chlorine-resistant gas corrosion；
3) thorax modes of emplacement is reacted：Placed with the horizontal 10 °~35 ° overturning angles, iron powder adds from upper end, waste chlorine from
Lower end enters；
4) react thorax outer wall surrounding and place permanent magnet or controlled electromagnet, iron powder is covered with reaction thorax inwall as far as possible, increase
Contact area between big iron powder and the waste chlorine passed through, while be not easy to be dispelled；
5) iron powder is added consistent in a manner of being continuously added to, and waste chlorine processing system can be made continuously to run；
6) install vibrator additional, make reaction thorax that the low amplitude vibrations of controllable certain frequency occur, reaction thorax sets one on bottom surface
Determine the elongated strip or dot bulge of density, tiled automatically when the iron powder for making to be added in reaction thorax flows from top to bottom and continuous
Rolling；
7) this course of reaction is exothermic process, and reactant concentration and reaction speed determine the temperature of whole system, work as temperature
When spending high, the reactant concentration mode in the gas dilution gas of reaction that is not involved in that can be released by being introduced into exhaust outlet is controlled
System；Energy can be provided when temperature of reaction system is too low is unable to sustained response by way of electromagnetic induction, microwave radiation or electric heating
Measure and heated to system, make system temperature scope controllable between 320 DEG C to 500 DEG C；
8) chlorine gas concentration is higher, and reaction start-up temperature is lower：When chlorine gas concentration is up to more than 90%, start entering for reaction
Temperature needs more than 60 DEG C at mouthful；When chlorine gas concentration is as little as less than 1%, inlet temperature needs to control at 320 DEG C；According to chlorine
Various concentrations control reaction start-up temperature；
9) waste chlorine inflow velocity is controlled, chlorine is fully reacted with iron powder, and flies upward iron powder, gas flow rate is not high
In 4m/m2s；
10) 320~500 DEG C of bore temperature of control reaction, product chlorinated iron keep gaseous state from outflow suitable for reading, the iron chloride of outflow
Gas enters cooling-sedimentation separator, is cooled to 100~200 DEG C of temperature, and powder product is made after collecting iron chloride；Temperature 100
After~200 DEG C of separation gas may the also chlorine containing denier, it is outer after the absorption of end-o f-pipe -control section to arrange；
11) the end-o f-pipe -control section of system：One wall is formed by glass wool cloth clamping inner-walls of duct, separated by a distance two
Iron powder of a certain amount of granularity in 20~60 mesh is fixed between wall, the wall as sieve formed in pipeline, heats iron powder
To 180 ± 20 DEG C, gas flows through this iron powder after separation, and the micro chlorine not being completely absorbed is outer after the processing of absorption again
Row, can multigroup end-o f-pipe -control section in parallel or series in the case of certain；
12) oxygen in mixed gas also reacts generation solid iron oxides with iron powder, is promoted in the iron powder being continuously added into
Under from reaction thorax least significant end outlet discharge, ferric oxide powder product is made；
13) iron powder not reacted completely may be contained in the iron chloride of generation, iron oxide, separated by the method for magnetic separation,
Improve iron chloride, the quality of iron oxide；
It can be up and down superimposed as needed in reaction cavity and place multiple reaction thoraxes, set before and after whole waste chlorine processing system
Standby connection keeps closed.
Embodiment 2
Technology experimental verification：
With the iron chloride of the chlorine production high-purity of solid-state iron powder absorption experiment room chemical method output.
Chlorine preparation method：Concentrated hydrochloric acid reacts with manganese dioxide in round-bottomed flask, and the chlorine of generation imports iron powder by conduit
Handled in absorption tube.
Reduced iron powder：Analyze it is pure, effective ingredient be not less than 98%；The mesh of granularity -80.
Experiment process chlorine processing step：
1) reduced iron powder 20g is taken, tiles and opens in the middle part of the quartz ampoule for the two open ends for being placed on the long 300mm of diameter 25mm, by stone
English pipe is horizontally fixed on iron stand, and the iron powder to tile out places alcolhol burner close to the side-lower that chlorine flows into be added
Heat, there is thermocouple probe measurement temperature at iron powder；
2) generator of laboratory preparing chlorine gas is used, has added concentrated hydrochloric acid and manganese dioxide, prepares preparing chlorine gas；
3) chlorine flow direction plug and conduit, which are drawn, imported into quartz ampoule one end, other end connection current condenser,
Condensator outlet reconnects device for absorbing tail gas；
4) alcolhol burner heating iron powder is lighted, stops heating and opening chlorine still, caused chlorine when temperature reaches 150 DEG C
Gas is through conduit at iron powder, and iron powder vigorous reaction, exothermic heat of reaction, temperature is raised rapidly with 2 DEG C of speed each second at iron powder
Be increased to 375 DEG C and persistently 489 DEG C, generate brown color iron chloride steam enter condenser cooling after settle；
5) chlorine still is closed when temperature reaches 490 DEG C, now continues to react at iron powder, temperature rises to about
No longer raised after 510 DEG C；
6) stand and be cooled to room temperature, take out the iron chloride of sedimentation, its purity of assay reaches 98.4%, contains moisture content
0.9%, chlorination weight of iron reaches Grade A quality in GB/T1621-2008 standards.
7) the alkali lye composition in device for absorbing tail gas does not change through assay, and this proves that chlorine is chlorinated substantially
Iron absorbs.
Embodiment 3
Chlorine actual conditions caused by the industrial electrolysis of simulation carry out experimental verification：
The waste chlorine of industrial output：Concentration is not high enough, and general only about 20%~60%；Waste chlorine is from certain temperature
Output in solution, waste chlorine are big containing quantity of steam；Other trace impurities entered with steam.The mixed of chlorine and air is used during checking
Close gas, chlorine volume fraction 60%, start reaction when allow mixing waste chlorine from pH value be 0.5,65 DEG C of temperature, nickel ion concentration
For in 50g/L nickel chloride solution by then going waste chlorine processing system.
Reduced iron powder：Analyze it is pure, effective ingredient be not less than 98%；The mesh of granularity -80.
Experiment process waste chlorine processing step：
1) reduced iron powder 300g is taken, tiles and opens in the middle part of the quartz ampoule for the two open ends for being placed on the long 400mm of diameter 40mm, by stone
English pipe is horizontally fixed on iron stand, and the iron powder to tile out places alcolhol burner close to the side-lower that waste chlorine flows into be added
Heat, there is thermocouple probe measurement temperature at the iron powder of alcolhol burner position correspondence, and other positions place two blocks of magnet and are used for fixing iron
Powder；
2) waste chlorine is fed forward by air pump, and waste chlorine first flows through the drying device of concentrated sulfuric acid circulated sprinkling, then passes through
Conduit is flowed into quartz ampoule one end, other end connection current condenser, condensator outlet connection device for absorbing tail gas, tail gas absorption
Absorbed using OH- concentration 1.25mol/L sodium hydroxide solution 3L；
3) alcolhol burner heating iron powder is lighted, stops heating and opening waste chlorine delivery pump, waste chlorine when temperature reaches 200 DEG C
Flow to 200 DEG C of iron powder after drying device with 5L/min speed, the chlorine and oxygen in waste chlorine react with iron powder, reaction
Heat release, 10 DEG C up and down centered on 480 DEG C of temperature after temperature is quickly raised to 325 DEG C and is persistently increased to about 480 DEG C at iron powder
Left and right fluctuate, generate brown color iron chloride steam enter condenser cooling after settle；
5) when iron powder amount is greatly decreased, temperature is gradually reduced no longer rise from 490 DEG C, generates the chlorine of brown color in quartz ampoule
When change iron steam slows down, waste chlorine delivery pump is closed, stops reaction and is down to room temperature；
6) the iron chloride solid of sedimentation is taken out, its purity of assay reaches 99.2%, contains moisture content 0.2%, iron chloride
Quality reaches Grade A quality in GB/T1621-2008 standards；
7) sodium hydroxide solution OH- concentration is reduced to 1.07mol/L by 1.25mol/L in device for absorbing tail gas, this explanation
The increase of reactor caliber reduces the efficiency that iron powder absorbs waste chlorine；
8) oxide for the iron being oxidized by oxygen, this oxide are reacted after taking out with strong magnet separation is no in pipe
Iron powder, obtain straight iron powder 27g, the oxide 43g of iron.
Embodiment 4
Chlorine actual conditions and waste chlorine processing system continuously run carry out experimental verification caused by simulation electrolysis：
The waste chlorine of industrial output：Concentration is not high enough, and general only about 20%~60%；Waste chlorine is from certain temperature
Output in solution, waste chlorine are big containing quantity of steam；Other trace impurities entered with steam.The mixed of chlorine and air is used during checking
Close gas, chlorine volume fraction 60%, start reaction when allow mixing waste chlorine from pH value be 0.5,65 DEG C of temperature, nickel ion concentration
For in 50g/L nickel chloride solution by then going waste chlorine processing system.
Reduced iron powder：Analyze it is pure, effective ingredient be not less than 98%；The mesh of granularity -80.
The continuous operation process step of waste chlorine processing system：
1) the long 500mm of diameter 40mm quartz ampoule, one end mouth of pipe set iron powder import and iron chloride gas vent, the other end
The mouth of pipe sets waste chlorine import and solid product outlet；
2) four inlet and outlet connect waste chlorine and flow into pipe, iron chloride steam and unreacting gas delivery line, iron powder certainly respectively
It is dynamic to feed equipment, solid product receiving and processing equipment, react installation vibration machine outside thorax, reaction thorax modes of emplacement and level
Tilt 10 degree of angles downwards to place, normally after connection, waste chlorine processing system can continuously be run other corollary systems；
3) thorax surrounding fixed upper magnet in addition to iron powder preheating position is reacted, iron powder is distributed full reaction thorax inwall as far as possible
And it is not easy to be blown to fly upward by fixation；
4) waste chlorine processing system is started, iron powder adds speed 18g/min, when the iron powder of addition is covered with reaction thorax, preheating
When the iron powder of position reaches 200 DEG C of reaction temperature, open delivery pump and be passed through waste chlorine, waste chlorine is pumped into speed 10L/min, and give up chlorine
Gas enters reaction thorax after dehydration device, chlorine, oxygen and iron powder exothermic heat of reaction, control waste chlorine flow velocity, is not involved in reaction
The modes such as the gas amount of filling into control reaction thorax internal temperature range to be issued to continuously in each link stable operation at 320~500 DEG C
Handle the running status of waste chlorine；
5) condensation is to 180 ± 20 DEG C of sedimentation separation iron chloride after the reacted thorax reaction of waste chlorine, the gas temperature after separation
180 ± 20 DEG C of end-o f-pipe -control sections by waste chlorine processing system are kept, the micro chlorine warp also contained in the gas after separation
It is outer after thoroughly absorbing to arrange；
6) from the solid product of reaction thorax discharge, the method separated with magnet is taken out the complete iron powder of unreacted, is returned from
Dynamic addition iron powder equipment；
7) the iron chloride effective component content settled out is more than 98%, and iron oxide effective ingredient is more than 95%；
8) continuously run under each equipment normal operation of waste chlorine processing system.
Embodiment 5
Chlorine actual conditions and waste chlorine processing system continuously run carry out experimental verification caused by simulation electrolysis：
The waste chlorine of industrial output：Concentration is not high enough, and general only about 20%~60%；Waste chlorine is from certain temperature
Output in solution, waste chlorine are big containing quantity of steam；Other trace impurities entered with steam.
Using the mixed gas of chlorine and air during checking, chlorine volume fraction 20%, start to allow mixing useless chlorine during reaction
Gas is from the nickel chloride solution that pH value is 0.5,65 DEG C of temperature, nickel ion concentration are 50g/L by then going waste chlorine processing system
System.
Reduced iron powder：Analyze it is pure, effective ingredient be not less than 98%；The mesh of granularity -80.
The continuous operation process step of waste chlorine processing system：
1) the long 500mm of diameter 40mm quartz ampoule, one end mouth of pipe set iron powder import and iron chloride gas vent, the other end
The mouth of pipe sets waste chlorine import and solid product outlet；
2) four inlet and outlet connect waste chlorine and flow into pipe, iron chloride steam and unreacting gas delivery line, iron powder certainly respectively
It is dynamic to feed equipment, solid product receiving and processing equipment, react installation vibration machine outside thorax, reaction thorax modes of emplacement and level
Tilt 10 degree of angles downwards to place, normally after connection, waste chlorine processing system can continuously be run other corollary systems；
3) thorax surrounding fixed upper magnet in addition to iron powder preheating position is reacted, iron powder is distributed full reaction thorax inwall as far as possible
And it is not easy to be blown to fly upward by fixation；
4) waste chlorine processing system is started, when the iron powder of addition is covered with reaction thorax, the iron powder of preheating position reaches reaction temperature
During 300 DEG C of degree, open waste chlorine delivery pump and be passed through waste chlorine, waste chlorine enters reaction thorax after dehydration device, chlorine, oxygen with
Iron powder exothermic heat of reaction, because chlorine content is relatively low, the condition that 320 DEG C of reaction heat maintenance system supplements outside heat when temperature is low again
System temperature is kept to make the running status for being issued to continuous processing waste chlorine in each link stable operation more than 320 DEG C；
5) condensation is to 180 ± 20 DEG C of sedimentation separation iron chloride after the reacted thorax reaction of waste chlorine, the gas temperature after separation
180 ± 20 DEG C of end-o f-pipe -control sections by waste chlorine processing system are kept, the micro chlorine warp also contained in the gas after separation
It is outer after thoroughly absorbing to arrange；
6) from the solid product of reaction thorax discharge, the method separated with magnet is taken out the complete iron powder of unreacted, is returned from
Dynamic addition iron powder equipment；
7) the iron chloride effective component content settled out is more than 98%, and the iron oxide effective ingredient after separating iron powder is more than
95%.
8) continuously run under each equipment normal operation of waste chlorine processing system.
Embodiment 6
Waste chlorine is carried out using the earth of positive pole or similar raw material of the metallic elements such as cupric, iron, lead, zinc, cobalt, nickel, gold, platinum
Processing checking：
The waste chlorine of industrial output：Chlorine volume ratio 15%.
The earth of positive pole：The mesh of granularity -80 after drying and crushing；Reducing metal composition about 43%.
The continuous operation process step of waste chlorine processing system：
1) the long 500mm of diameter 40mm quartz ampoule, one end mouth of pipe set reproducibility powder inlet and product gas outlet, separately
One end mouth of pipe sets waste chlorine import and solid product outlet；
2) four inlet and outlet connect waste chlorine inflow pipe respectively, gaseous product delivery line, earth of positive pole powder add equipment, solid
Body product receiving and processing equipment, reaction thorax outside installation vibration machine, reaction thorax modes of emplacement tilt down 10 with horizontal plane
Spend angle to place, normally after connection, waste chlorine processing system can continuously be run other corollary systems；
1) and 2) 3) in parallel with two groups of equipment described in, one group of disorderly closedown processing is then using another in continuous running
Group, or two groups of uses simultaneously improve processing speed；
4) waste chlorine processing system is started, when the earth of positive pole powder of addition is covered with reaction thorax bottom, preheating position reaches anti-
When answering 450 DEG C of temperature, open waste chlorine delivery pump and be passed through waste chlorine, waste chlorine enters reaction thorax, chlorine, oxygen after dehydration device
Gas and earth of positive pole powdered reaction heat release, chlorine gas concentration is low, starts reaction thorax external heat equipment heat supply, reaction thorax is maintained 450
DEG C reaction condition；
5) condensation sedimentation device is flowed through after the reacted thorax reaction of waste chlorine, temperature is down to 150 ± 20 DEG C, settles and filters out
The compositions such as metal chloride or oxide in product, the gas temperature after separation are kept for 150 ± 20 DEG C and handled by waste chlorine
The end-o f-pipe -control section of system, the micro chlorine also contained in the gas after separation is outer after thoroughly absorbing to be arranged；
6) solid mixture of the material mixings such as the metal chloride oxide settled out together, it is that production process is treated point
From intermediate product, continued with by associated production system.
7) two groups of waste chlorine processing systems in parallel enable the processing of waste chlorine continuously to run for a long time.
Above-mentioned embodiment is only intended to clearly illustrate example of the present invention, and not to embodiment
Limit.For those of ordinary skill in the field, other multi-forms can also be made on the basis of the above description
Change or variation, there is no necessity and possibility to exhaust all the enbodiments, and thus amplifies out apparent
Change or change still in protection scope of the present invention.
Claims (3)
1. a kind of processing method of waste chlorine, it is characterised in that comprise the following steps：
(1) raw material for absorbing the gases such as chlorine is added to 10 ° from top to bottom~35 ° consistent in a manner of being continuously added to
In the reative cell of overturning angle, raw material is added by upper end, and waste chlorine is entered by lower end；Reative cell is by heat-resisting more than 800 DEG C and chlorine-resistant
The material of gas corrosion is made；
(2) install vibrator additional on reative cell, reative cell is occurred the low amplitude vibrations of controllable certain frequency, on reative cell bottom surface
The elongated strip or dot bulge of certain density are set, makes to be added to when the iron powder in reative cell flows from top to bottom and tiles automatically
And constantly roll；
(3) raw material, which adds speed, makes on the bottom surface of reative cell at least 2/3rds area be covered with raw material；
(4) reacting outdoor wall surrounding is provided with the permanent magnet or electromagnet of certain magnetic field intensity, makes raw material under the influence of a magnetic field
Reaction chamber wall surrounding is adsorbed onto, increases the contact area between raw material and the waste chlorine passed through, while under the influence of a magnetic field
Fixed raw material, flies upward raw material；
(5) this course of reaction is exothermic process, and reactant concentration and reaction speed determine the temperature of whole system, when temperature mistake
Gao Shi, the reactant concentration mode in the gas dilution gas of reaction that is not involved in that can be released by being introduced into exhaust outlet control；When
Temperature of reaction system is too low can to supply energy to body when being unable to sustained response by way of electromagnetic induction, microwave radiation or electric heating
System's heating, makes system temperature scope controllable between 350 DEG C to 500 DEG C；
(6) chlorine gas concentration is higher, and reaction start-up temperature is lower：When chlorine gas concentration is up to more than 90%, start the entrance of reaction
Locating temperature needs more than 60 DEG C；When chlorine gas concentration is as little as less than 1%, inlet temperature needs to control at 380 DEG C；According to chlorine
Various concentrations control reaction start-up temperature；
(7) waste chlorine inflow velocity is controlled, chlorine is fully reacted with raw material, and flies upward raw material, gas flow rate is not higher than
4m/m2·s；
(8) 380~500 DEG C of reaction chamber temperature is controlled, product chlorinated thing is kept gaseous state from outflow suitable for reading, the chlorine of outflow
Compound gas enters cooling-sedimentation separator, is cooled to 100~200 DEG C of temperature, and powder product, temperature is made after collecting chloride
After 100~200 DEG C of separation gas may the also chlorine containing denier, it is outer after the absorption of end-o f-pipe -control section to arrange；
(9) oxygen in mixed gas also reacts generation oxide solid with raw material, in the case where the raw material being continuously added into promotes from anti-
Answer the outlet of room least significant end to discharge, oxide powder product is made；
(10) reaction terminates that the raw material not reacted completely may be contained in rear product, is separated by the method for magnetic separation, improves product
The quality of chloride, oxide；
(11) 100~200 DEG C of the end-o f-pipe -control section keeping temperature of reative cell, gas is outer after absorption is handled after separation arranges；
(12) it can be up and down superimposed as needed in reaction system and place multiple reative cells, set before and after whole waste chlorine processing system
Standby connection keeps closed.
2. the processing method of a kind of waste chlorine according to claim 1, it is characterised in that the raw material is iron powder or contained
The mixture of iron powder.
A kind of 3. processing method of waste chlorine according to claim 1, it is characterised in that the end-o f-pipe -control of the reative cell
Section is the sieve-like wall being made up of granularity in the iron powder group of 20~60 mesh.
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| JP7186768B2 (en) * | 2018-03-30 | 2022-12-09 | 関東電化工業株式会社 | Method and apparatus for producing molybdenum hexafluoride |
| CN112095122A (en) * | 2020-07-20 | 2020-12-18 | 甘肃聚国源新材料有限公司 | Method for preparing conductor copper from chlorine nitrate |
| CN115572617A (en) * | 2022-10-11 | 2023-01-06 | 安徽飞时达化工科技有限公司 | Continuous stripping process and device for chlorinated paraffin |
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| CN1096971A (en) * | 1993-07-02 | 1995-01-04 | 珠海市供水总公司 | A kind of method and apparatus of letting out the chlorine absorption |
| CN1834003A (en) * | 2005-12-19 | 2006-09-20 | 李安民 | Method of removing and reclaiming free chlorine in hydrochloric acid of chlorized by-product |
| CN101168114A (en) * | 2007-08-28 | 2008-04-30 | 中国科学院长春应用化学研究所 | Chlorine adsorption device generated by electrolyzing fused chloride anode and adsorption method |
| CN102091527A (en) * | 2010-12-23 | 2011-06-15 | 何卫东 | Method and device for absorbing waste chlorine generated in lithium production process by utilizing iron powder |
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| CN1096971A (en) * | 1993-07-02 | 1995-01-04 | 珠海市供水总公司 | A kind of method and apparatus of letting out the chlorine absorption |
| CN1834003A (en) * | 2005-12-19 | 2006-09-20 | 李安民 | Method of removing and reclaiming free chlorine in hydrochloric acid of chlorized by-product |
| CN101168114A (en) * | 2007-08-28 | 2008-04-30 | 中国科学院长春应用化学研究所 | Chlorine adsorption device generated by electrolyzing fused chloride anode and adsorption method |
| CN102091527A (en) * | 2010-12-23 | 2011-06-15 | 何卫东 | Method and device for absorbing waste chlorine generated in lithium production process by utilizing iron powder |
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