CN106582273A - Ammonium paratungstate production cycle weak acid recycling system - Google Patents
Ammonium paratungstate production cycle weak acid recycling system Download PDFInfo
- Publication number
- CN106582273A CN106582273A CN201611150691.9A CN201611150691A CN106582273A CN 106582273 A CN106582273 A CN 106582273A CN 201611150691 A CN201611150691 A CN 201611150691A CN 106582273 A CN106582273 A CN 106582273A
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- spray
- liquid
- spray column
- reactor
- acid
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- 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
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8681—Acidic 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
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic 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
- B01D53/74—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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an ammonium paratungstate production cycle weak acid recycling system which comprises a decomposing tank, a spray tower and a weak-acid waste liquid treatment system. The decomposing tank is provided with a sealing top, a waste gas staying cavity is formed in the space between the sealed top and a reaction tank at the bottom of the decomposing tank, a temperature detector and a pressure detector are arranged in the waste gas staying cavity, a control device is arranged outside the decomposing tank and connected with the temperature detector and the pressure detector, an exhaust pipe is arranged at the sealed top, a control valve is arranged on the exhaust pipe and connected with the control device, an air outlet is formed in the upper portion of the spray tower, a mist spray header is arranged at the top of an inner cavity of the spray tower, a liquid outlet is formed in the bottom of the spray tower, a plurality of turbulent inclined plates are sequentially arranged at the bottom of the spray tower in a staggered manner at intervals from bottom to top, the surface of each turbulent inclined plate is coated with waste gas catalysts, and pH (potential of hydrogen) of mist spray liquid sprayed by the mist spray header is 12-14.
Description
Technical field
The present invention relates to ammonium paratungstate production system regions, at more particularly to a kind of ammonium paratungstate production circulation weak acid recovery
Reason system.
Background technology
Ammonium paratungstate (APT) is the important intermediate compound for producing tungsten powder, tungsten filament, tungsten-bast alloy and all tungsten materials, is also
Large exporting of China.One of step of production ammonium paratungstate is exactly that wolframic acid decomposes, and current wolframic acid decomposer is big
Majority uses opened type structure, causes waste gas in catabolic process from high air discharge, to pollute environment.And ammonium paratungstate production
During spray column produce weak acid can not normal process, cause secondary pollution.
The content of the invention
Present invention aims to the above-mentioned not enough and defect of prior art, there is provided a kind of ammonium paratungstate production circulation
Weak acid recovery processing system, to solve the above problems.
Technical problem solved by the invention can employ the following technical solutions to realize：
Ammonium paratungstate production circulates weak acid recovery processing system, it is characterised in that including decomposition cell body, spray column, weak acid
Property liquid waste treatment system, be set to sealing top at the top of the decomposition cell body, sealing top and decompose cell body bottom
Space forms exhaust dwell chamber between reactive tank, and the exhaust dwell intracavity is provided with temperature detector, pressure detector, institute
State decomposer and the control device being connected with the temperature detector, pressure detector is set in vitro, arrange on the sealing top
The exhaustor for having one to connect with the exhaust dwell chamber and connecting with the exhaust gas inlet of the spray column bottom, on the exhaustor
It is provided with the control valve being connected with the control device；The top of the spray column is provided with gas outlet, the spray column
Inner cavity top is provided with vaporific spray head, and the bottom of the spray column is provided with liquid outlet, in the bottom of the spray column by under
Supreme interleaved successively is provided with some flow-disturbing swash plates, and the surface-coated of each flow-disturbing swash plate has exhaust gas catalyst, by described
The pH of the vaporific spray liquid that vaporific spray head sprays out is 12～14, the sodium hydroxide of the vaporific spray liquid and the proportioning of water
It is 1:15～20, the faintly acid liquid waste treatment system includes acid waste liquid collecting tank, the weak acid of the acid waste liquid collecting tank
Waste liquid inlet is connected with the liquid outlet of the bottom of the spray column by pipeline, the liquid outlet of the acid waste liquid collecting tank with
The charging aperture connection of ion exchange column, the discharging opening of the ion exchange column is connected with the charging aperture of reactor, the reactor
Inwall be lined with corrosion-resistant graphite linings and PP layers successively from the inside to the outside, be provided with the reactor agitating device and plus hot charging
Put, the reactor downstream position is additionally provided with defecator, the defecator discharges calcium superphosphate, the reaction after filtering
Kettle is operationally internal to keep 50 DEG C～70 DEG C of whipping temp.
As a result of technical scheme as above, the present invention will be set to sealing top at the top of decomposition cell body, will react
The waste gas of generation carries out centralized recovery discharge, and realizes full automatic working according to pressure and temperature, safe and reliable.Also lead in addition
Cross spray column to process waste gas so that by the waste gas through spray column for neutrality, prevent from causing acid waste gas to pollute.And
And, the present invention can also be processed the weak acid waste liquid that spray column is produced, and form calcium superphosphate, convenient to recycle.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of an embodiment of the present invention.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, enter below
One step illustrates the present invention.
Ammonium paratungstate production circulation weak acid recovery processing system shown in Figure 1, including decompose cell body 100, spray column
200 and faintly acid liquid waste treatment system, the top for decomposing cell body 100 is set to sealing top 110, sealing top 110 and decomposes
Space forms exhaust dwell chamber 130 between the reactive tank 120 of the bottom of cell body 100.Temperature inspection is provided with exhaust dwell chamber 130
Device 140, pressure detector 150 are surveyed, is decomposed cell body 100 and the control being connected with temperature detector 140, pressure detector 150 is set outward
Device processed 160.Sealing top 110 on be provided with one connect with exhaust dwell chamber 130 and with the exhaust gas inlet of the bottom of spray column 200
The exhaustor 170 of 210 connections, is provided with the control valve 180 being connected with control device 160 on exhaustor 170.
The top of spray column 200 is provided with gas outlet 220, and the inner cavity top of spray column 200 is provided with vaporific spray head
230, the bottom of spray column 200 is provided with liquid outlet 240, and in the bottom of spray column 200, from the bottom to top successively interleaved is arranged
The surface-coated for having some flow-disturbing swash plates 250, each flow-disturbing swash plate 250 has exhaust gas catalyst, is sprayed out by vaporific spray head 230
The pH of the vaporific spray liquid 231 for coming is 12～14, and the sodium hydroxide of vaporific spray liquid 231 and the proportioning of water are 1:15～20.
Faintly acid liquid waste treatment system includes acid waste liquid collecting tank 300, and the weak acid waste liquid of acid waste liquid collecting tank 300 enters
Liquid mouth 310a is connected with the liquid outlet 240 of the bottom of spray column 200 by pipeline 102a, and acid waste liquid collecting tank 300 goes out liquid
Mouthfuls 320 are connected with the charging aperture 410 of ion exchange column 400, the discharging opening 420 of ion exchange column 400 and the charging of reactor 500
Mouth 510 connects, and the inwall of reactor 500 is lined with successively from the inside to the outside in corrosion-resistant graphite linings and PP layers, reactor 500 and is provided with
Agitating device 600 and heater 700.The downstream position of reactor 500 is additionally provided with defecator 800, and defecator 800 is filtered
After discharge calcium superphosphate, reactor 500 is operationally internal to keep 50 DEG C～70 DEG C of whipping temp.
The operation principle of the present invention is as follows：
The waste gas that the reaction of reactive tank 120 is produced is detained in the exhaust dwell chamber 130 after rising, when temperature detector 140,
Pressure detector 150 detects the air pressure and temperature in exhaust dwell chamber 130 and reaches after predetermined parameter, and control device 160 is controlled
Control valve processed 180 is opened so that the waste gas in exhaust dwell chamber 130 is concentrated from exhaustor 170 and is expelled to spray column 200
In, when through flow-disturbing swash plate 250 first with the exhaust gas catalyst reaction neutralization on the surface of flow-disturbing swash plate 250, then again with by vaporific
The pH that spray head 230 sprays out is that 12～14 vaporific spray liquid 231 reacts, and the waste gas discharged through the present invention is neutrality,
Prevent from causing acid waste gas to pollute.And, spray column 200 produce weak acid waste liquid by faintly acid liquid waste treatment system at
Reason, forms calcium superphosphate, convenient to recycle.
The ultimate principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description this
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (1)
1. ammonium paratungstate production circulates weak acid recovery processing system, it is characterised in that including decomposition cell body, spray column, faintly acid
Liquid waste treatment system, is set to the anti-of sealing top, the sealing top and decomposition cell body bottom at the top of the decomposition cell body
Answer space between groove to form exhaust dwell chamber, the exhaust dwell intracavity is provided with temperature detector, pressure detector, it is described
Decomposer arranges in vitro the control device being connected with the temperature detector, pressure detector, is provided with the sealing top
One exhaustor for connecting with the exhaust dwell chamber and connecting with the exhaust gas inlet of the spray column bottom, sets on the exhaustor
It is equipped with the control valve being connected with the control device；The top of the spray column is provided with gas outlet, the spray column it is interior
Top of chamber is provided with vaporific spray head, and the bottom of the spray column is provided with liquid outlet, the bottom of the spray column by down to
On successively interleaved be provided with some flow-disturbing swash plates, the surface-coated of each flow-disturbing swash plate has exhaust gas catalyst, by the mist
The pH of the vaporific spray liquid that shape spray head sprays out is 12～14, and the sodium hydroxide of vaporific spray liquid is with the proportioning of water
1:15～20, the faintly acid liquid waste treatment system includes acid waste liquid collecting tank, and the weak acid of the acid waste liquid collecting tank gives up
Liquid inlet is connected with the liquid outlet of the bottom of the spray column by pipeline, the liquid outlet of the acid waste liquid collecting tank with from
The charging aperture connection of sub- exchange column, the discharging opening of the ion exchange column is connected with the charging aperture of reactor, the reactor
Inwall is lined with successively from the inside to the outside corrosion-resistant graphite linings and PP layers, and agitating device and heater are provided with the reactor,
The reactor downstream position is additionally provided with defecator, and the defecator discharges calcium superphosphate, the reactor after filtering
Operationally inside keeps 50 DEG C～70 DEG C of whipping temp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611150691.9A CN106582273A (en) | 2016-12-14 | 2016-12-14 | Ammonium paratungstate production cycle weak acid recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611150691.9A CN106582273A (en) | 2016-12-14 | 2016-12-14 | Ammonium paratungstate production cycle weak acid recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106582273A true CN106582273A (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611150691.9A Pending CN106582273A (en) | 2016-12-14 | 2016-12-14 | Ammonium paratungstate production cycle weak acid recycling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112691528A (en) * | 2020-12-28 | 2021-04-23 | 厦门钨业股份有限公司 | Acid waste gas treatment system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045958A (en) * | 1989-03-31 | 1990-10-10 | 吉林锗厂 | Ion exchange method prepares pure ammonium paratungstate method |
| CN1223987A (en) * | 1998-12-22 | 1999-07-28 | 郑州工业大学磷肥与复肥研究所 | Preparation of particle superphosphate with ground phosphate rock by one-step process, and process therefor |
| CN1377980A (en) * | 2002-02-06 | 2002-11-06 | 王旭升 | Process for preparing high purity ammonium para-tungstate using hihg-molybdenum tungsten ore |
| CN2605917Y (en) * | 2003-03-19 | 2004-03-10 | 龙际银 | Dustproof environmental protection system |
| CN2721210Y (en) * | 2004-09-16 | 2005-08-31 | 石家庄市宏晟环保科技有限公司 | Adsorptive gas purifier |
| CN101643245A (en) * | 2008-08-05 | 2010-02-10 | 江西稀有稀土金属钨业集团有限公司 | Process for preparing high-purity ammonium paratungstate |
| CN102167401A (en) * | 2011-03-14 | 2011-08-31 | 崇义章源钨业股份有限公司 | Method for dephosphorizing aluminum tungstate ((NH4)2WO4) solution |
| CN204973857U (en) * | 2015-04-13 | 2016-01-20 | 天津八通化工有限公司 | Porcelain enamel reaction kettle |
| CN105753055A (en) * | 2016-05-09 | 2016-07-13 | 江西稀有稀土金属钨业集团有限公司 | Preparation method of low-potassium low-sodium low-chloride high-purity ammonium paratungstate |
-
2016
- 2016-12-14 CN CN201611150691.9A patent/CN106582273A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045958A (en) * | 1989-03-31 | 1990-10-10 | 吉林锗厂 | Ion exchange method prepares pure ammonium paratungstate method |
| CN1223987A (en) * | 1998-12-22 | 1999-07-28 | 郑州工业大学磷肥与复肥研究所 | Preparation of particle superphosphate with ground phosphate rock by one-step process, and process therefor |
| CN1377980A (en) * | 2002-02-06 | 2002-11-06 | 王旭升 | Process for preparing high purity ammonium para-tungstate using hihg-molybdenum tungsten ore |
| CN2605917Y (en) * | 2003-03-19 | 2004-03-10 | 龙际银 | Dustproof environmental protection system |
| CN2721210Y (en) * | 2004-09-16 | 2005-08-31 | 石家庄市宏晟环保科技有限公司 | Adsorptive gas purifier |
| CN101643245A (en) * | 2008-08-05 | 2010-02-10 | 江西稀有稀土金属钨业集团有限公司 | Process for preparing high-purity ammonium paratungstate |
| CN102167401A (en) * | 2011-03-14 | 2011-08-31 | 崇义章源钨业股份有限公司 | Method for dephosphorizing aluminum tungstate ((NH4)2WO4) solution |
| CN204973857U (en) * | 2015-04-13 | 2016-01-20 | 天津八通化工有限公司 | Porcelain enamel reaction kettle |
| CN105753055A (en) * | 2016-05-09 | 2016-07-13 | 江西稀有稀土金属钨业集团有限公司 | Preparation method of low-potassium low-sodium low-chloride high-purity ammonium paratungstate |
Non-Patent Citations (2)
| Title |
|---|
| 廖利波: "白钨矿酸法处理新工艺研究", 《中国优秀博硕士学位论文全文数据库（硕士） 工程科技I辑》 * |
| 胡桂朝等: "离子交换法仲钨酸铵生产工艺", 《离子交换法仲钨酸铵生产工艺》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112691528A (en) * | 2020-12-28 | 2021-04-23 | 厦门钨业股份有限公司 | Acid waste gas treatment system |
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| PB01 | Publication | ||
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Application publication date: 20170426 |