CN107298465A - The recovery and treatment method of rutile processing waste water - Google Patents
The recovery and treatment method of rutile processing waste water Download PDFInfo
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- CN107298465A CN107298465A CN201710598011.8A CN201710598011A CN107298465A CN 107298465 A CN107298465 A CN 107298465A CN 201710598011 A CN201710598011 A CN 201710598011A CN 107298465 A CN107298465 A CN 107298465A
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- waste water
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- 238000000034 method Methods 0.000 title claims abstract description 74
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000002351 wastewater Substances 0.000 title claims abstract description 40
- 238000011084 recovery Methods 0.000 title claims abstract description 37
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000002253 acid Substances 0.000 claims abstract description 69
- 150000003839 salts Chemical class 0.000 claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000007921 spray Substances 0.000 claims abstract description 25
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract description 18
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 17
- 229940067573 brown iron oxide Drugs 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 14
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 230000003647 oxidation Effects 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 11
- 238000004094 preconcentration Methods 0.000 claims abstract description 11
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 9
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001447 ferric ion Inorganic materials 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 238000000889 atomisation Methods 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 12
- 238000005406 washing Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- -1 iron ion Chemical class 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 235000001055 magnesium Nutrition 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004575 stone 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
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/07—Purification ; Separation
- C01B7/0706—Purification ; Separation of hydrogen chloride
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
The invention belongs to chemical field, and in particular to a kind of recovery and treatment method of rutile processing waste water.Low for the existing waste water acid number for preparing synthetic rutile generation, impurity content is high and is difficult to remove, it is difficult to which the problems such as recycling, the present invention provides a kind of recovery and treatment method of rutile processing waste water, comprises the following steps：A, hydrochloric acid method is prepared to abraum salt acid solution that rutile obtains through filtering and pre-concentration, obtain the abraum salt acid solution that acid number is 120~150g/L；B, by abraum salt acid solution secondary concentration obtained by step a, obtain the abraum salt acid solution that acid number is 160~200g/L；C, by abraum salt acid solution obtained by step b through spray roasting, obtain hydrogen chloride gas and solid oxidation iron；The acid number refers to H+、Fe2+And Fe3+Summation.The inventive method can obtain high-grade brown iron oxide, the discharge of whole process unharmful substance, and can obtain the regenerated acid of higher concentration.The inventive method is simple for process, cost is low, non-environmental-pollution, is worth of widely use.
Description
Technical field
The invention belongs to chemical field, and in particular to a kind of recovery and treatment method of rutile processing waste water.
Background technology
During synthetic rutile is produced using hydrochloric acid method leaching ilmenite concentrate, ilmenite concentrate will be passed through by obtaining synthetic rutile
The techniques such as modified, leaching, filtering, washing, calcining, could obtain more high-grade synthetic rutile.In filter and cleaning process mistake
Cheng Zhong, will just leach the slurry that finishes and carry out directly filtering can obtain the higher leaching mother liquor of total acid number concentration, this partial mother liquid
Recovery is easily handled.And the relatively low dirt solution of content of hydrochloric acid that a part of various concentrations will be produced in washing process, always
Acid number concentration is general between 80~120g/L.Its main component is as shown in table 1 below：
The rutile processing waste water component content table of table 1
| Main component | Fe2+ | Fe3+ | Ca2+ | Mg2+ | HCl |
| Content (g/L) | 15~25 | 10~15 | 1~3 | 3~5 | 60~90 |
In above-mentioned waste water, total acid number is relatively low, and iron content is high, while also containing impurity such as calcium and magnesiums, using in traditional oxidation
It is all relatively difficult that iron ion is reclaimed with method or hydrochlorate partition method.
Oxidation neutralisation can make ferrous ions into ferric ion, be hydrolyzed under alkaline matter lime neutralization
For iron oxide；Ferric ion is hydrolyzed and iron oxide crystal growth is complicated multinomial course of reaction, it is difficult to separated, it is impossible to
It is enough effectively to separate iron ion, and a large amount of waste residues can be produced using lime neutralization method processing spent acid, cause serious
Secondary pollution.
The content of the invention
The technical problem to be solved in the present invention is：The waste water acid number for preparing synthetic rutile generation is low, impurity content it is high and
It is difficult to remove, it is difficult to the problems such as recycling.
The present invention solve technical problem technical scheme be：A kind of recovery and treatment method of rutile processing waste water is provided.
This method comprises the following steps：
A, hydrochloric acid method is prepared to abraum salt acid solution that rutile obtains through filtering and pre-concentration, obtain total acid number for 120~
150g/L abraum salt acid solution；
B, by abraum salt acid solution secondary concentration obtained by step a, obtain the abraum salt acid solution that total acid number is 160~200g/L；
C, by abraum salt acid solution obtained by step b through spray roasting, obtain hydrogen chloride gas and solid oxidation iron；The acid number
Refer to H+、Fe2+And Fe3+The summation of concentration.
Wherein, in the recovery and treatment method of above-mentioned rutile processing waste water, the hydrochloric acid method described in step a prepares rutile and obtained
The abraum salt acid solutions arrived are 80~110g/L.
Wherein, in the recovery and treatment method of above-mentioned rutile processing waste water, described in the pre-concentration and step b described in step a
Thickening temperature be 80~85 DEG C.
Wherein, in the recovery and treatment method of above-mentioned rutile processing waste water, the spray roasting described in step c refers to step
Total acid number is calcined to be sprayed into after 160~200g/L waste hydrochloric acid solution atomization in calciner obtained by rapid b.
It is preferred that, in the recovery and treatment method of above-mentioned rutile processing waste water, during spray roasting described in step c, spray
Pressure is spilt for 0.35~0.50Mpa, sprinkling flow is 3~3.5m3/h。
Wherein, in the recovery and treatment method of above-mentioned rutile processing waste water, sintering temperature described in step c is 650~750
℃。
It is preferred that, in the recovery and treatment method of above-mentioned rutile processing waste water, spray roasting afterchlorinate hydrogen in step c
Outlet temperature control is 370~450 DEG C.
Wherein, in the recovery and treatment method of above-mentioned rutile processing waste water, in addition to step d, by hydrogen chloride gas water
Absorb, obtain hydrochloric acid.
Further, in the recovery and treatment method of above-mentioned rutile processing waste water, the absorption flow of the hydrogen chloride gas
For 4~4.5m3/ h, it is 78~83 DEG C to absorb temperature.
Wherein, in the recovery and treatment method of above-mentioned rutile processing waste water, in addition to step e, by gained solid in step c
Iron oxide is broken into brown iron oxide.
Beneficial effects of the present invention are：Hydrochloric acid and iron oxide are reclaimed from rutile processing waste water the invention provides one kind
The method of powder, can effectively obtain more high-grade brown iron oxide, the discharge of whole process unharmful substance, and can obtain higher concentration
Regenerated acid.The inventive method is simple for process, cost is low, non-environmental-pollution, and running cost is low, is worth of widely use.
Embodiment
The invention provides a kind of recovery and treatment method of rutile processing waste water, comprise the following steps：
A, hydrochloric acid method is prepared to abraum salt acid solution that rutile obtains by filtering and pre-concentration, it is 120 to obtain total acid number
~150g/L abraum salt acid solution；
B, by abraum salt acid solution secondary concentration obtained by step a, obtain the abraum salt acid solution that total acid number is 160~200g/L；
C, by total acid number obtained by step b for 160~200g/L abraum salt acid solution by spray roasting, obtain hydrogen chloride gas
Body and solid oxidation iron；The acid number refers to H+、Fe2+And Fe3+The summation of concentration.
What hydrochloric acid method of the present invention prepared that abraum salt acid solution in rutile technique refers to is that hydrochloric acid method leaches and prepares golden red
The abraum salt acid solution obtained in cubic meter of stone method after washing procedure.Industrial salt acid system leaches ilmenite concentrate and produces synthetic rutile process
In, to be modified, leach by ilmenite concentrate, filtering, washing, the technique such as calcining, a part of various concentrations can be obtained in washing process
The relatively low iron content ionic impurity solution of content of hydrochloric acid, the part solution is abraum salt acid solution of the present invention.Described
The total acid number that hydrochloric acid method prepares gained abraum salt acid solution after washing procedure in rutile technique is 80~110g/L.
Wherein, in the recovery and treatment method of above-mentioned rutile processing waste water, described in the pre-concentration and step b described in step a
Thickening temperature be 80~85 DEG C.
Wherein, in the recovery and treatment method of above-mentioned rutile processing waste water, the spray roasting described in step c refers to step
Total acid number is calcined to be sprayed into after 160~200g/L waste hydrochloric acid solution atomization in calciner obtained by rapid b.In the present invention,
It is to improve the roasting effect of waste hydrochloric acid by abraum salt acid solution progress spray roasting.
It is preferred that, in the recovery and treatment method of above-mentioned rutile processing waste water, during spray roasting described in step c, spray
Pressure is spilt for 0.35~0.50Mpa, sprinkling flow is 3~3.5m3/h。
Wherein, in the recovery and treatment method of above-mentioned rutile processing waste water, sintering temperature described in step c is 650~750
℃。
It is preferred that, in the recovery and treatment method of above-mentioned rutile processing waste water, spray roasting afterchlorinate hydrogen in step c
Outlet temperature control is 370~450 DEG C.
Further, the recovery and treatment method of above-mentioned rutile processing waste water also includes step d, and hydrogen chloride gas is inhaled with water
Receive, obtain hydrochloric acid.
Further, in the recovery and treatment method of above-mentioned rutile processing waste water, the absorption flow of the hydrogen chloride gas
For 4~4.5m3/ h, it is 78~83 DEG C to absorb temperature.
In the present invention, the temperature of control hydrogen chloride gas is to be imitated to control the assimilation effect of hydrochloric acid so as to improve recovery
Rate；The too small solubility reduction that can make hydrochloric acid in water of temperature, so that the organic efficiency of hydrochloric acid can be reduced；It is direct that temperature crosses conference
The maxima solubility of hydrochloric acid is reached, combustion heat source is wasted.
Further, the above method also includes step e, will be broken into oxidation after the screening of gained solid oxidation iron in step c
Iron powder.
The invention provides a kind of recovery and treatment method of the iron ion of abraum salt acid solution, the specific implementation process of this method
To comprise the following steps：
(1) total acid number is filtered for the low concentration of salt acid solution of the impurity such as 80~110g/L calcium-magnesium-containing iron, filtered off wherein
Solid impurity, first pre-concentration is then carried out, by its total acid number pre-concentration to 120~150g/L；
(2) by 120~150g/L hydrochloric acid solution again pre-concentration to total acid number be 160~200g/L hydrochloric acid solution；
(3) secondary concentration resulting solution is sprayed into and spray roasting operation is carried out in roaster, it is molten under high temperature oxidative atmosphere
Liquid mist, and occur pyrolysis, generation hydrogen chloride gas and solid oxidation iron；
(4) hydrogen chloride gas is out absorbed above roaster by absorption tower with water, so as to obtain regeneration hydrochloric acid；
(5) and solid mixed oxide is dropped down onto in the feed bin of roaster bottom, then then to obtain content higher by broken
Brown iron oxide.
Explanation will be further explained to the embodiment of the present invention by embodiment below, but do not indicate that and will protect
Shield scope is limited in described in embodiment in scope.
Embodiment 1 reclaims rutile processing waste water with the inventive method
Waste hydrochloric acid used is the hydrochloric acid solution for producing the acquisition of synthetic rutile washing procedure, and main component is：Total acid number is
97.86g/L, free acid 72.63g/L, Fe2+18.34g/L, Fe3+10.29g/L, Ca2+2.22g/L, Mg2+4.31g/L solution,
Strainer filtering is first used, the solid impurity in solution is removed, 80~85 DEG C of temperature is then heated to, by solution pre-concentration to original solution
25% or so of volume, now solution acid number is 124.37g/L；
Solution after concentration is again heated to 80~85 DEG C, concentration 25% or so is 171.35g/L to its acid number, led to
Cross spray gun to spray into the solution atomization after secondary concentration in roaster, spray pressure is 0.35~0.50Mpa；It is 3 to spray flow
~3.5m3/h, issues heat in 750 DEG C of high temperature oxidative atmospheres and decomposes, generation hydrogen chloride gas and soild oxide, spraying roasting
It is 370 DEG C to burn afterchlorinate hydrogen outlet temperature；Hydrogen chloride gas absorbs through absorption tower obtains total acid number concentration for 195.72g/L
Regeneration hydrochloric acid.It is 4~4.5m that absorption tower, which absorbs flow control,3/ h, temperature control is 78~83 DEG C.Soild oxide is by broken
Broken screening can obtain better quality grade be 80~90% brown iron oxide, can as downstream high added value soft magnetic ferrite work
The rapidoprint of high-quality brown iron oxide required by industry, the main chemical compositions of gained brown iron oxide are as shown in table 2.
The main chemical compositions of the brown iron oxide of table 2
| Composition | Fe2O3 | CaO | FeO | MgO | TiO2 | SiO2 | Al2O3 | MnO |
| Content | 86.59 | 1.67 | 1.37 | 3.21 | 1.76 | 0.19 | 1.38 | 1.19 |
Embodiment 2 reclaims rutile processing waste water with the inventive method
Waste hydrochloric acid used is the hydrochloric acid solution for producing the acquisition of synthetic rutile washing procedure, and main component is：Total acid number is
104.52g/L, free acid 75.64g/L, Fe2+20.32g/L, Fe3+12.58g/L, Ca2+2.46g/L, Mg2+4.67g/L it is molten
Liquid, first removes the solid impurity in solution with strainer filtering, is then heated to 80~85 DEG C and is concentrated for the first time, is concentrated into former molten
25% or so of liquid, acid number is 129.77g/L；
80~85 DEG C are again heated to the solution after concentration, secondary concentration is carried out, is concentrated into 25% of original solution or so,
It is 182.76g/L to its acid number, is sprayed into solution atomization in roaster by spray gun, spray pressure is 0.35~0.50Mpa；Spray
Flow is spilt for 3~3.5m3/ h, issues heat in 750 DEG C of high temperature oxidative atmospheres and decomposes, generation hydrogen chloride gas and solid oxidation
Thing, spray roasting afterchlorinate hydrogen outlet temperature is 450 DEG C；Hydrogen chloride gas absorbs acquisition total acid number concentration through absorption tower
202.56g/L regeneration hydrochloric acid.It is 4~4.5m that absorption tower, which absorbs flow control,3/ h, temperature control is 78~83 DEG C.Solid oxygen
Compound can obtain the brown iron oxide of better quality by broken, can be required as the soft magnetic ferrite industry of downstream high added value
High-quality brown iron oxide rapidoprint, the main chemical compositions of gained brown iron oxide are as shown in table 3.
The main chemical compositions of the brown iron oxide of table 3
| Composition | Fe2O3 | CaO | FeO | MgO | TiO2 | SiO2 | Al2O3 | MnO |
| Content % | 87.82 | 1.32 | 1.27 | 2.97 | 1.37 | 0.12 | 1.36 | 1.07 |
, can be effectively by synthetic rutile washing procedure using the recovery and treatment method of the present invention from embodiment
The hydrochloric acid solution of acquisition is recycled, and the acid in separation thickened waste hydrochloric acid solution, regeneration obtains hydrochloric acid solution, moreover it is possible to will be useless
Fe in hydrochloric acid3+And Fe2+Efficiently separate out, be used, regenerate the brown iron oxide of better quality, saved cost,
Environment is improved, with obvious economic benefit.
Claims (10)
1. the recovery and treatment method of rutile processing waste water, it is characterised in that comprise the following steps：
A, hydrochloric acid method is prepared to abraum salt acid solution that rutile obtains through filtering and pre-concentration, obtain total acid number for 120~150g/
L abraum salt acid solution；
B, by abraum salt acid solution secondary concentration obtained by step a, obtain the abraum salt acid solution that total acid number is 160~200g/L；
C, by abraum salt acid solution obtained by step b through spray roasting, obtain hydrogen chloride gas and solid oxidation iron；The total acid number is
Refer to H+、Fe2+And Fe3+The summation of concentration.
2. the recovery and treatment method of rutile processing waste water according to claim 1, it is characterised in that：Described in step a
It is 80~110g/L that hydrochloric acid method, which prepares the abraum salt acid solutions that rutile obtains,.
3. the recovery and treatment method of rutile processing waste water according to claim 1, it is characterised in that：Described in step a
Pre-concentration and thickening temperature described in step b are 80~85 DEG C.
4. the recovery and treatment method of rutile processing waste water according to claim 1, it is characterised in that：Described in step c
Spray roasting refer to total acid number obtained by step b to be sprayed into after 160~200g/L waste hydrochloric acid solution atomization in calciner
It is calcined.
5. the recovery and treatment method of rutile processing waste water according to claim 1, it is characterised in that：Described in step c
Spray roasting when, spray pressure be 0.35~0.50Mpa, sprinkling flow be 3~3.5m3/h。
6. the recovery and treatment method of rutile processing waste water according to claim 1, it is characterised in that：Described in step c
Sintering temperature is 650~750 DEG C.
7. the recovery and treatment method of rutile processing waste water according to claim 1, it is characterised in that：Sprayed in step c
It is 370~450 DEG C to be calcined the control of afterchlorinate hydrogen outlet temperature.
8. the recovery and treatment method of rutile processing waste water according to claim 1, it is characterised in that：Also include step d,
Hydrogen chloride gas is absorbed with water, hydrochloric acid is obtained.
9. the recovery and treatment method of rutile processing waste water according to claim 1, it is characterised in that：The hydrogen chloride gas
The absorption flow of body is 4~4.5m3/ h, it is 78~83 DEG C to absorb temperature.
10. the recovery and treatment method of rutile processing waste water according to claim 1, it is characterised in that：Also include step
E, brown iron oxide is broken into by gained solid oxidation iron in step c.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723311A (en) * | 2020-12-28 | 2021-04-30 | 宜宾天原海丰和泰有限公司 | Method for comprehensively utilizing artificial rutile mother liquor by utilizing iron ore |
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| CN103834957A (en) * | 2014-03-19 | 2014-06-04 | 江苏星瑞化工工程科技有限公司 | Separation purification method of high-Fe waste hydrochloric acid |
| CN104986736A (en) * | 2015-07-16 | 2015-10-21 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for recovering waste hydrochloric acid solution in hydrochloric acid method rutile preparation technology |
| CN107188127A (en) * | 2017-06-30 | 2017-09-22 | 安徽金星钛白（集团）有限公司 | A kind of method that utilization chlorination spent acid prepares titanium dioxide crystal seed |
-
2017
- 2017-07-20 CN CN201710598011.8A patent/CN107298465A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103834957A (en) * | 2014-03-19 | 2014-06-04 | 江苏星瑞化工工程科技有限公司 | Separation purification method of high-Fe waste hydrochloric acid |
| CN104986736A (en) * | 2015-07-16 | 2015-10-21 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for recovering waste hydrochloric acid solution in hydrochloric acid method rutile preparation technology |
| CN107188127A (en) * | 2017-06-30 | 2017-09-22 | 安徽金星钛白（集团）有限公司 | A kind of method that utilization chlorination spent acid prepares titanium dioxide crystal seed |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112723311A (en) * | 2020-12-28 | 2021-04-30 | 宜宾天原海丰和泰有限公司 | Method for comprehensively utilizing artificial rutile mother liquor by utilizing iron ore |
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