CN106693635A - Strong acid and weak acid recycling system during ammonium paratungstate production - Google Patents
Strong acid and weak acid recycling system during ammonium paratungstate production Download PDFInfo
- Publication number
- CN106693635A CN106693635A CN201611150659.0A CN201611150659A CN106693635A CN 106693635 A CN106693635 A CN 106693635A CN 201611150659 A CN201611150659 A CN 201611150659A CN 106693635 A CN106693635 A CN 106693635A
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- spray
- acid
- liquid
- reactor
- strong 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
- B01D53/75—Multi-step processes
-
- 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
-
- 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
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
- C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
- C01B15/16—Peroxyhydrates; Peroxyacids or salts thereof containing phosphorus
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G41/00—Compounds of tungsten
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a strong acid and weak acid recycling system during ammonium paratungstate production. The system comprises a decomposition tank body, a spray tower and a strongly and weakly acidic waste liquid treatment system, wherein the top of the decomposition tank body is set as a sealing top; a waste gas retention chamber is formed in a space between the sealing top and a reaction tank at the bottom of the decomposition tank body; a temperature detector and a pressure detector are arranged in the waste gas retention chamber; a control device connected with the temperature detector and the pressure detector is arranged outside the decomposition tank body; an exhaust pipe is arranged on the sealing top; a control valve connected with the control device is arranged on the exhaust pipe; a gas outlet is formed in the upper part of the spray tower; a mist spray header is arranged on 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 inclined spoilers are sequentially arranged at the bottom of the spray tower from bottom to top in a staggered manner at intervals; a waste gas catalyst is coated on the surface of each of the inclined spoilers; and the pH value of mist spray liquid sprayed from the mist spray header is 12-14.
Description
Technical field
The present invention relates to ammonium paratungstate production system regions, more particularly to a kind of ammonium paratungstate production circulation strong acid weak acid is returned
Receive processing 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.The one of step for producing ammonium paratungstate is exactly that wolframic acid is decomposed, and current wolframic acid decomposer is big
Majority uses opened type structure, and waste gas pollutes environment from air discharge high in causing decomposable process.And ammonium paratungstate production
During the strong acid waste liquid that produces of wolframic acid decomposer be unable to normal process, the weak acid that spray column is produced can not normal process, make
Into secondary pollution.
The content of the invention
A kind of above-mentioned not enough and defect it is an object of the invention to be directed to prior art, there is provided ammonium paratungstate production circulation
Strong acid weak acid recovery processing system, to solve the above problems.
Technical problem solved by the invention can be realized using following technical scheme：
Ammonium paratungstate production circulate strong acid weak acid recovery processing system, it is characterised in that including decompose cell body, spray column,
Strong acid faintly acid liquid waste treatment system, is set to sealing top, the sealing top and decomposer at the top of the decomposition cell body
Space forms exhaust dwell chamber between the reactive tank of body bottom, and temperature detector, pressure are provided with the exhaust dwell chamber
Detector, the decomposer sets the control device being connected with the temperature detector, pressure detector, the sealing top in vitro
A blast pipe for being connected with the exhaust dwell chamber and being connected with the exhaust gas inlet of the spray column bottom is provided with portion, it is described
The control valve being connected with the control device is provided with blast pipe；The top of the spray column is provided with gas outlet, described
The inner cavity top of spray column is provided with vaporific spray head, and the bottom of the spray column is provided with liquid outlet, in the spray column
Interleaved is provided with some flow-disturbing swash plates successively from the bottom to top for bottom, and the surface of each flow-disturbing swash plate is coated with exhaust fume catalytic
Agent, the pH of the vaporific spray liquid for spraying out by the vaporific spray head is 12~14, the NaOH of the vaporific spray liquid
It is 1 with the proportioning of water:15~20, the strong acid faintly acid liquid waste treatment system includes acid waste liquid collecting tank, the spent acidic
The strong acid waste liquid inlet of liquid collecting tank is connected with the strong acid discard solution discharge port of the decomposition cell body by pipeline, the spent acidic
The weak acid waste liquid inlet of liquid collecting tank is connected with the liquid outlet of the bottom of the spray column by pipeline, and the acid waste liquid is received
The liquid outlet for collecting groove is connected with the charging aperture of ion exchange column, and the discharging opening of the ion exchange column connects with the charging aperture of reactor
Connect, the inwall of the reactor is lined with corrosion-resistant graphite linings and PP layers successively from the inside to the outside, and stirring is provided with the reactor
Device and heater, the reactor downstream position are additionally provided with filter, and phosphorus was discharged after the filter filtering
Sour calcium, the reactor 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 decompose and sealing top be set at the top of 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
Spray column is crossed to process waste gas so that by by spray column waste gas for neutrality, prevent from causing acid waste gas to pollute.And
And, the weak acid waste liquid that the present invention can also decompose the strong acid waste liquid of cell body generation, spray column is produced is processed, and forms peroxophosphoric acid
Calcium, it is convenient to recycle.
Brief description of the drawings
In order to illustrate more clearly about 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 strong acid weak acid recovery processing system shown in Figure 1, including decompose cell body 100, spray
Tower 200 and strong acid faintly acid liquid waste treatment system are drenched, the top for decomposing cell body 100 is set to sealing top 110, sealing top
Space forms exhaust dwell chamber 130 between 110 and the reactive tank 120 of decomposition cell body 100 bottom.Set in exhaust dwell chamber 130
Temperature detector 140, pressure detector 150 are equipped with, the outer setting of cell body 100 and temperature detector 140, pressure detector is decomposed
The control device 160 of 150 connections.Sealing top 110 on be provided with one connected with exhaust dwell chamber 130 and with spray column 200 under
The blast pipe 170 of the connection of exhaust gas inlet 210 in portion, is provided with the control valve being connected with control device 160 on blast pipe 170
180。
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, interleaved is set successively from the bottom to top
The surface for having some flow-disturbing swash plates 250, each flow-disturbing swash plate 250 is coated with 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 NaOH of vaporific spray liquid 231 and the proportioning of water are 1:15~20.
Strong acid faintly acid liquid waste treatment system includes acid waste liquid collecting tank 300, and the strong acid of acid waste liquid collecting tank 300 gives up
Liquid inlet 310 is connected with the strong acid discard solution discharge port 101 for decomposing cell body 100 by pipeline 102, acid waste liquid collecting tank 300
Weak acid waste liquid inlet 310a be connected by pipeline 102a with the liquid outlet 240 of the bottom of spray column 200, acid waste liquid collect
The liquid outlet 320 of groove 300 is connected with the charging aperture 410 of ion exchange column 400, discharging opening 420 and the reaction of ion exchange column 400
The charging aperture 510 of kettle 500 is connected, and the inwall of reactor 500 is lined with corrosion-resistant graphite linings and PP layers, reactor successively from the inside to the outside
Agitating device 600 and heater 700 are provided with 500.The downstream position of reactor 500 is additionally provided with filter 800, filtering
Device 800 discharges calcium superphosphate after filtering, and reactor 500 is operationally internal to keep 50 DEG C~70 DEG C of whipping temp.
Operation principle of the 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,
After the air pressure and temperature that pressure detector 150 is detected in exhaust dwell chamber 130 reach predetermined parameter, control device 160 is controlled
Control valve processed 180 is opened so that the waste gas in exhaust dwell chamber 130 is concentrated from blast pipe 170 and is expelled to spray column 200
In, first neutralized with the reaction of the exhaust gas catalyst on the surface of flow-disturbing swash plate 250 when by 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 is neutrality by the waste gas of present invention discharge,
Prevent from causing acid waste gas to pollute.And, decompose the strong acid waste liquid of the generation of cell body 100, the weak acid waste liquid of the generation of spray column 200 and lead to
Cross strong acid faintly acid liquid waste treatment system to be processed, form calcium superphosphate, it is convenient to recycle.
General principle of the invention and principal character and advantages 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 limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (1)
1. ammonium paratungstate production circulation strong acid weak acid recovery processing system, it is characterised in that including decomposing cell body, spray column, strong
Sour faintly acid liquid waste treatment system, is set to sealing top, the sealing top and decomposition cell body at the top of the decomposition cell body
Space forms exhaust dwell chamber between the reactive tank of bottom, and temperature detector, pressure inspection are provided with the exhaust dwell chamber
Device is surveyed, the decomposer sets the control device being connected with the temperature detector, pressure detector, the sealing top in vitro
On be provided with a blast pipe for being connected with the exhaust dwell chamber and being connected with the exhaust gas inlet of the spray column bottom, the row
The control valve being connected with the control device is provided with tracheae；The top of the spray column is provided with gas outlet, the spray
The inner cavity top for drenching tower is provided with vaporific spray head, and the bottom of the spray column is provided with liquid outlet, at the bottom of the spray column
Interleaved is provided with some flow-disturbing swash plates successively from the bottom to top in portion, and the surface of each flow-disturbing swash plate is coated with exhaust gas catalyst,
The pH of the vaporific spray liquid for spraying out by the vaporific spray head is 12~14, the NaOH and water of the vaporific spray liquid
Proportioning be 1:15~20, the strong acid faintly acid liquid waste treatment system includes acid waste liquid collecting tank, and the acid waste liquid is received
The strong acid waste liquid inlet for collecting groove is connected with the strong acid discard solution discharge port of the decomposition cell body by pipeline, and the acid waste liquid is received
The weak acid waste liquid inlet for collecting groove is connected with the liquid outlet of the bottom of the spray column by pipeline, the acid waste liquid collecting tank
Liquid outlet be connected with the charging aperture of ion exchange column, the discharging opening of the ion exchange column is connected with the charging aperture of reactor,
The inwall of the reactor is lined with corrosion-resistant graphite linings and PP layers successively from the inside to the outside, and agitating device is provided with the reactor
And heater, the reactor downstream position is additionally provided with filter, calcium superphosphate discharged after the filter filtering,
The reactor is operationally internal to keep 50 DEG C~70 DEG C of whipping temp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611150659.0A CN106693635A (en) | 2016-12-14 | 2016-12-14 | Strong acid and weak acid recycling system during ammonium paratungstate production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611150659.0A CN106693635A (en) | 2016-12-14 | 2016-12-14 | Strong acid and weak acid recycling system during ammonium paratungstate production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106693635A true CN106693635A (en) | 2017-05-24 |
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ID=58935836
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611150659.0A Pending CN106693635A (en) | 2016-12-14 | 2016-12-14 | Strong acid and weak acid recycling system during ammonium paratungstate production |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN206355805U (en) * | 2016-12-14 | 2017-07-28 | 衡阳市南东有色金属有限公司 | Ammonium paratungstate production circulates strong acid weak acid recovery processing system |
-
2016
- 2016-12-14 CN CN201611150659.0A patent/CN106693635A/en active Pending
Patent Citations (9)
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|---|---|---|---|---|
| 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 |
| CN206355805U (en) * | 2016-12-14 | 2017-07-28 | 衡阳市南东有色金属有限公司 | Ammonium paratungstate production circulates strong acid weak acid recovery processing system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170524 |