CN106474876A - The process reuse method of chlorinated exhaust in a kind of titanium sponge production - Google Patents
The process reuse method of chlorinated exhaust in a kind of titanium sponge production Download PDFInfo
- Publication number
- CN106474876A CN106474876A CN201611090376.1A CN201611090376A CN106474876A CN 106474876 A CN106474876 A CN 106474876A CN 201611090376 A CN201611090376 A CN 201611090376A CN 106474876 A CN106474876 A CN 106474876A
- Authority
- CN
- China
- Prior art keywords
- fecl
- water
- gas
- hydrochloric acid
- filtrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
- C01G23/0536—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing chloride-containing salts
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses in a kind of titanium sponge production chlorinated exhaust process reuse method, the material that can be produced after effective recycling tail gas filtering.To produce in chloride process production process comprising HCl, TiCl4Water scrubber is entered with the tail gas of chlorine, abraum salt acid solution and water-fast gas is obtained after washing filtering；Water-fast gas will enter in caustic wash tower and carry out alkali cleaning filtration after water scrubber is filtered, gas up to standard is obtained after filtration and is discharged；The abraum salt acid solution of gained is filtered, obtains the filter residue of watery hydrochloric acid filtrate and main component for metatitanic acid；The filter residue for obtaining is carried out calcination processing, obtains titanium dioxide；Scrap iron is added in the watery hydrochloric acid filtrate for obtaining, and scrap iron generates FeCl with hydrochloric acid reaction3Afterwards, FeCl3FeCl is generated with excessive iron reaction2, then it is passed through chlorine reaction generation FeCl3, circulate this step FeCl in the filtrate3Concentration be more than 41%.
Description
Technical field
The present invention relates in titanium sponge production field, especially a kind of titanium sponge production chlorinated exhaust process recycling side
Method.
Background technology
During titanium sponge production, chloridization process production can be produced containing HCl, TiCl4With the acid waste gas of chlorine, this
Therefore acid waste gas are filtered, in washable waste gas by the general all hydrolyzables of the gas that includes in acid discarded using washing
Sour gas produce waste hydrochloric acid, the processing mode of this waste hydrochloric acid is usually to be directly discharged in sewage disposal system, through neutralization
Industry water is re-used as after aeration, precipitation and filtration to be used, although the method can ensure that acid waste gas non-pollution discharge, can drop
The low pollution to environment, but the load of follow-up sewage disposal in acid waste gas N-process, is increased, recycling process is relatively
For loaded down with trivial details, the utilization ratio of resource is reduced.
Content of the invention
The technical problem to be solved is：A kind of process recycling side of chlorinated exhaust in titanium sponge production is provided
Method, the material produced after energy effective recycling tail gas filtering.
For solving above-mentioned technical problem the technical solution adopted in the present invention it is：Chlorinated exhaust in a kind of titanium sponge production
Reuse method is processed, is comprised the steps：
A, will in chloride process production process produce comprising HCl, TiCl4Water scrubber is entered with the tail gas of chlorine, pass through
Abraum salt acid solution and water-fast gas is obtained after washing filtering；
B, water-fast gas will enter in caustic wash tower and carry out alkali cleaning filtration after water scrubber is filtered, obtain after filtration
Gas up to standard is simultaneously discharged；
The abraum salt acid solution of gained in c, filtration step a, obtains the filter residue of watery hydrochloric acid filtrate and main component for metatitanic acid
D, the filter residue obtained in step c is carried out calcination processing, obtain titanium dioxide；
Scrap iron is added in e, the watery hydrochloric acid filtrate obtained in step c, and scrap iron generates FeCl with hydrochloric acid reaction3Afterwards, FeCl3
FeCl is generated with excessive iron reaction2, then it is passed through chlorine reaction generation FeCl3, circulate this step FeCl in the filtrate3Dense
Degree is more than 41%.
It is further：Need to first pass through repeatedly before filter residue is calcined in step d and wash and filter, calcining heat is 920
℃.
The invention has the beneficial effects as follows：The sour gas in tail gas is filtered using water scrubber, caustic wash tower can be processed in tail gas
Chlorine, through washing and alkali cleaning after free of contamination gas is obtained, to after filtration produce filtrate and filter residue carry out respectively
Process, FeCl is obtained3Solution and titanium dioxide, it is achieved that filter comprehensive recycling of residual matter, with good economic benefit, with
When achieve the zero-emission of waste hydrochloric acid, environment protecting is strong.
Specific embodiment
For the ease of understanding the present invention, the present invention is further detailed with reference to embodiment.
In a kind of titanium sponge production of the present invention, the process reuse method of chlorinated exhaust, comprises the steps：
A, will in chloride process production process produce comprising HCl, TiCl4Water scrubber is entered with the tail gas of chlorine, pass through
Abraum salt acid solution and water-fast gas is obtained after washing filtering；HCl and TiCl in this step4Formation soluble in water is containing heavy
The abraum salt acid solution of starch, the gas containing chlorine enter downstream；
B, water-fast gas will enter in caustic wash tower and carry out alkali cleaning filtration after water scrubber is filtered, obtain after filtration
Gas up to standard is simultaneously discharged；The chlorine being mainly in this step in filtration treatment tail gas；
The abraum salt acid solution of gained in c, filtration step a, obtains the filter residue of watery hydrochloric acid filtrate and main component for metatitanic acid
D, the filter residue obtained in step c is carried out calcination processing, obtain titanium dioxide；The main component of filter residue is water insoluble
Metatitanic acid precipitation, first filter residue is repeatedly washed before being calcined and is filtered, the temperature of calcining is 920 DEG C；
Scrap iron is added in e, the watery hydrochloric acid filtrate obtained in step c, and scrap iron generates FeCl with hydrochloric acid reaction3Afterwards, FeCl3
FeCl is generated with excessive iron reaction2, then it is passed through chlorine reaction generation FeCl3, circulate this step FeCl in the filtrate3Dense
Degree is more than 41%.
Embodiment
The chlorinated exhaust produced during titanium sponge production is passed directly into water scrubber, mainly contain in tail gas HCl,
TiCl4And chlorine, there is hydrolysis in water scrubber, the waste hydrochloric acid of concentration about 25% is generated, be not washed with water the chlorine of tower absorption
Gas etc. is passed through after caustic wash tower absorption is processed and obtains gas up to standard and discharged.Waste hydrochloric acid is divided into filtrate and filter by filtering
Slag.Wherein filter residue is washed 3 times and is filtered, and then filter residue is calcined 1h at a high temperature of 920 DEG C, that is, is obtained titanium dioxide.To filtrate
Excessive scrap iron is added, and chlorine is passed through, cyclic absorption reacts, and obtains 41.79% FeCl3Solution.
Claims (2)
1. in a kind of titanium sponge production chlorinated exhaust process reuse method, it is characterised in that：Comprise the steps：
A, will in chloride process production process produce comprising HCl, TiCl4Water scrubber is entered with the tail gas of chlorine, through water washed
Abraum salt acid solution and water-fast gas is obtained after filter；
B, water-fast gas will enter in caustic wash tower and carry out alkali cleaning filtration after water scrubber is filtered, obtain after filtration up to standard
Gas is simultaneously discharged；
The abraum salt acid solution of gained in c, filtration step a, obtains the filter residue of watery hydrochloric acid filtrate and main component for metatitanic acid；
D, the filter residue obtained in step c is carried out calcination processing, obtain titanium dioxide；
Scrap iron is added in e, the watery hydrochloric acid filtrate obtained in step c, and scrap iron generates FeCl with hydrochloric acid reaction3Afterwards, FeCl3With mistake
The iron reaction of amount generates FeCl2, then it is passed through chlorine reaction generation FeCl3, circulate this step FeCl in the filtrate3Concentration big
In 41%.
2. as claimed in claim 1 in a kind of titanium sponge production chlorinated exhaust process reuse method, it is characterised in that：Step
In rapid d, filter residue needs to first pass through repeatedly before being calcined and washes and filter, and calcining heat is 920 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090376.1A CN106474876A (en) | 2016-12-01 | 2016-12-01 | The process reuse method of chlorinated exhaust in a kind of titanium sponge production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090376.1A CN106474876A (en) | 2016-12-01 | 2016-12-01 | The process reuse method of chlorinated exhaust in a kind of titanium sponge production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106474876A true CN106474876A (en) | 2017-03-08 |
Family
ID=58275430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611090376.1A Pending CN106474876A (en) | 2016-12-01 | 2016-12-01 | The process reuse method of chlorinated exhaust in a kind of titanium sponge production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106474876A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243237A (en) * | 2017-08-17 | 2017-10-13 | 东方弗瑞德（北京）科技有限公司 | A kind of TiCl4Device for absorbing tail gas and its absorption process |
| CN107281885A (en) * | 2017-08-17 | 2017-10-24 | 东方弗瑞德（北京）科技有限公司 | The processing method of waste gas during a kind of titanium sponge production |
| CN108191105A (en) * | 2017-12-28 | 2018-06-22 | 攀枝花钢企欣宇化工有限公司 | A kind of Shu Zhi Jing Hua processing method of chlorinated exhaust wastewater eluting |
| CN116036800A (en) * | 2023-01-09 | 2023-05-02 | 中国成达工程有限公司 | Method and system for treating and utilizing chlorinated tail gas |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4401441A1 (en) * | 1993-01-21 | 1994-09-08 | Flaekt Ab | Process and apparatus for purifying gases containing hydrogen chloride and sulphur dioxide |
| CN103028309A (en) * | 2012-12-26 | 2013-04-10 | 遵宝钛业有限公司 | Absorption method of chlorinated tail gas |
| CN103432867A (en) * | 2013-08-30 | 2013-12-11 | 漯河兴茂钛业股份有限公司 | Method for comprehensively utilizing waste hydrochloric acid produced in chlorination eluting tail gas process in chlorination method titanium white production |
| CN203469786U (en) * | 2013-08-05 | 2014-03-12 | 河南龙兴钛业有限公司 | Respiratory gas processing device applicable to titanium tetrachloride production process |
| CN205109398U (en) * | 2015-10-23 | 2016-03-30 | 杭州尹力环保科技有限公司 | Chloride organic waste gas clarification plant |
| CN106044708A (en) * | 2016-05-26 | 2016-10-26 | 宜宾天原集团股份有限公司 | Method for comprehensively utilizing chlorination tail gas in chlorination-process titanium dioxide powder production procedures |
-
2016
- 2016-12-01 CN CN201611090376.1A patent/CN106474876A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4401441A1 (en) * | 1993-01-21 | 1994-09-08 | Flaekt Ab | Process and apparatus for purifying gases containing hydrogen chloride and sulphur dioxide |
| CN103028309A (en) * | 2012-12-26 | 2013-04-10 | 遵宝钛业有限公司 | Absorption method of chlorinated tail gas |
| CN203469786U (en) * | 2013-08-05 | 2014-03-12 | 河南龙兴钛业有限公司 | Respiratory gas processing device applicable to titanium tetrachloride production process |
| CN103432867A (en) * | 2013-08-30 | 2013-12-11 | 漯河兴茂钛业股份有限公司 | Method for comprehensively utilizing waste hydrochloric acid produced in chlorination eluting tail gas process in chlorination method titanium white production |
| CN205109398U (en) * | 2015-10-23 | 2016-03-30 | 杭州尹力环保科技有限公司 | Chloride organic waste gas clarification plant |
| CN106044708A (en) * | 2016-05-26 | 2016-10-26 | 宜宾天原集团股份有限公司 | Method for comprehensively utilizing chlorination tail gas in chlorination-process titanium dioxide powder production procedures |
Non-Patent Citations (3)
| Title |
|---|
| 朱洪法等主编: "《无机化工产品手册》", 31 December 2008, 金盾出版社 * |
| 陈朝华编著: "《钛白粉生产技术问答》", 30 April 1998, 化学工业出版社 * |
| 黄可龙主编: "《精细化学品技术手册》", 30 June 1994, 中南工业大学出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243237A (en) * | 2017-08-17 | 2017-10-13 | 东方弗瑞德（北京）科技有限公司 | A kind of TiCl4Device for absorbing tail gas and its absorption process |
| CN107281885A (en) * | 2017-08-17 | 2017-10-24 | 东方弗瑞德（北京）科技有限公司 | The processing method of waste gas during a kind of titanium sponge production |
| CN107243237B (en) * | 2017-08-17 | 2020-05-01 | 东方弗瑞德（北京）科技有限公司 | TiCl4Tail gas absorption device and absorption method thereof |
| CN108191105A (en) * | 2017-12-28 | 2018-06-22 | 攀枝花钢企欣宇化工有限公司 | A kind of Shu Zhi Jing Hua processing method of chlorinated exhaust wastewater eluting |
| CN108191105B (en) * | 2017-12-28 | 2021-08-13 | 攀枝花钢企欣宇化工有限公司 | Resin purification treatment method for leaching wastewater from chlorinated tail gas |
| CN116036800A (en) * | 2023-01-09 | 2023-05-02 | 中国成达工程有限公司 | Method and system for treating and utilizing chlorinated tail gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103130265B (en) | Method for recycling titanium dioxide in waste SCR (Selective Catalytic Reduction) denitration catalyst | |
| WO2017174012A1 (en) | Molten-salt chlorinated-slag resource processing method | |
| CN106474876A (en) | The process reuse method of chlorinated exhaust in a kind of titanium sponge production | |
| CN104016598A (en) | Dechlorination method of titanium extraction tailings | |
| CN104056841A (en) | Processing method of titanium extraction tailings | |
| CN106521160A (en) | Method for extraction of vanadium from waste SCR catalyst and preparation of activated titanium silicon tungsten powder | |
| CN105714118A (en) | Technology for extracting and recovering tungsten and vanadium from waste SCR catalyst | |
| CN112609079B (en) | Treatment and recovery method for regeneration waste liquid of inactivated denitration catalyst and application thereof | |
| CN104071820A (en) | Method for producing calcium fluoride by waste LCD panel glass etching liquid | |
| CN103432867A (en) | Method for comprehensively utilizing waste hydrochloric acid produced in chlorination eluting tail gas process in chlorination method titanium white production | |
| CN105948174A (en) | Comprehensive utilization method for chlorination-process titanium dioxide post-treatment wastewater | |
| CN107185554A (en) | A kind of method that useless SCR denitration cleaning is recycled | |
| CN102625777B (en) | The manufacture of electroplating sludge process and nano-level iron oxide compound | |
| CN104178636A (en) | Method for recovering Ti, V, Mo and Si in SCR (selective catalytic reduction) waste catalyst by combination of activation calcination and acid leaching | |
| CN106277048A (en) | A kind of titanium slag is utilized to prepare the method and system of anatase titanium dioxide for raw material | |
| CN105883917A (en) | Method for preparing TiO2 and HCl solution from chlorination process titanium dioxide waste gas | |
| CN106365189B (en) | A kind of method of comprehensive utilization of white residue soil | |
| CN105668597A (en) | Method of acid-alkali combined extraction of aluminum-based products and silicon-based products from fly ash | |
| CN115612846A (en) | Method for recycling and preparing titanium-tungsten powder and vanadium products from waste SCR denitration catalyst | |
| CN215249605U (en) | System for recovering cryolite by combined treatment of aluminum electrolysis overhaul residues and aluminum ash | |
| CN109095575A (en) | A method of utilizing heavy metal in carbon bisulfide hydrolytic hydrogen sulfide treatment waste acid | |
| CN107200446A (en) | A kind of method that trace chromium reclaims aluminium product simultaneously in removal aluminum alloy sludge | |
| CN111017974A (en) | Mineral processing technology for resource utilization of low-grade celestite | |
| RU81963U1 (en) | TECHNOLOGICAL LINE FOR PROCESSING TITANIUM RAW MATERIALS | |
| CN103898340A (en) | Method for preparing barium molybdate by using nickel-molybdenum ore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170308 |