CN109663408A - Formic acid film reclaimer - Google Patents
Formic acid film reclaimer Download PDFInfo
- Publication number
- CN109663408A CN109663408A CN201910027709.3A CN201910027709A CN109663408A CN 109663408 A CN109663408 A CN 109663408A CN 201910027709 A CN201910027709 A CN 201910027709A CN 109663408 A CN109663408 A CN 109663408A
- Authority
- CN
- China
- Prior art keywords
- filter
- discharge system
- formic acid
- putamina
- group
- 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
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 235000019253 formic acid Nutrition 0.000 title claims abstract description 33
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000010992 reflux Methods 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 11
- 239000010865 sewage Substances 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 7
- 238000013022 venting Methods 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 4
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 239000012528 membrane Substances 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000011109 contamination Methods 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides formic acid film reclaimer, it is related to formic acid reclaimer field, including fixed bracket, raw material pump is installed on the left of support bracket fastened upper end, the upper end of raw material pump is equipped with manual ball valve, the upper end of manual ball valve is connected with electromagnetic flowmeter, the output end of electromagnetic flowmeter is equipped with filter group, the output end of filter group is connected with high-pressure pump, reflux line is connected on the input terminal of high-pressure pump, the other end of reflux line is connected on eight cun of three core dress putamina, electric control valve is connected on the left of vertical duct, the output end of electric control valve connects discharge system by conduit.The present invention is at low cost by membrane separation process recycling formic acid, the dedicated membrane component of selected formic acid, has very strong corrosion-resistant and contamination resistance, automation degree of equipment is high, and liquid level, flow, pressure, temperature have in-line meter to monitor at any time.Facility compact is beautiful, and Operation and Maintenance is simple.Entire invention energy conservation and environmental protection, simple process are high-efficient.
Description
Technical field
The present invention relates to formic acid reclaimer field more particularly to formic acid film reclaimers.
Background technique
Formic acid, also referred to as formic acid, molecular formula HCOOH.The colourless and irritating smell of formic acid, and be corrosive, Ren Leipi
Can blister redness after skin contact.Formic acid has the property of acid and aldehyde simultaneously.In chemical industry, formic acid be used for rubber, medicine,
Dyestuff, leather type industry.The boiling point of formic acid is 100.3 degree, very close with water, and there are certain difficulties for concentration purification.
Supply falls short of demand in formic acid market, every year can only meet demand amount 40%.Formic acid direct emission pollutes the environment, old
Recovery method complex process, it is at high cost.The method of recycling formic acid specifically includes that extraction, ion-exchange and neutralisation at present.
These methods are at high cost, deficiency in economic performance, and there is an urgent need to a kind of methods that low energy consumption, cost is few now to solve this problem.
Summary of the invention
The purpose of the present invention is to provide formic acid film reclaimers, to solve the above technical problems.
The present invention using following technical scheme in order to solve the above technical problems, realized: formic acid film reclaimer, including solid
Fixed rack, it is characterised in that:
Raw material pump is installed, the upper end of raw material pump is equipped with manual ball valve, manual ball on the left of the support bracket fastened upper end
The upper end of valve is connected with electromagnetic flowmeter, and the output end of electromagnetic flowmeter is equipped with filter group, and the output end of filter group connects
It is connected to high-pressure pump, the output end of high-pressure pump is connected with circulating pump by pipeline, and circulating pump includes one section of circulating pump and two sections of circulations
Pump, the right end of one section of circulating pump are connected with eight cun of three core by pipeline and fill putamina, be connected with back on the input terminal of the high-pressure pump
Flow tube road, reflux line and high-pressure pump junction are equipped with spring-loaded check valve, install on the top reflux line of spring-loaded check valve
There is jettron ball valve, the other end of reflux line is connected on eight cun of three core dress putamina, a left side for the eight cun of three core dress putamina
End downside is provided with sewage draining exit, and the right side of sewage draining exit is connected on reflux line by vertical duct, the lower end peace of vertical duct
Equipped with temperature transmitter and pressure transmitter, be connected with electric control valve on the left of vertical duct, the electric control valve it is defeated
Outlet connects discharge system by conduit, and discharge system is located at the front of high-pressure pump, is equipped with control on the left of discharge system
The middle position of cabinet, discharge system is provided with solenoid valve box.
Preferably, exhaust outlet is provided on the jettron ball valve.
Preferably, the filter group is divided into first filter and the second filter, first filter and the second filter
Upper end be connected to by conduit, the position on conduit close to first filter and the second filter is equipped with pneumatic venting ball valve,
The rear side lower end of first filter and the second filter is provided with sewage draining exit, and the upper end of first filter and the second filter is set
It is equipped with recoil import, the lower end of first filter and the second filter is connected in parallel on high-pressure pump by conduit, close to the first filtering
Pneumatic venting ball valve is installed on device and the conduit of the second filter lower end.
Preferably, the eight cun of three core dress putamina shares three rows, respectively upper putamina group, middle putamina group and lower shell group,
It is connected to by horizontally disposed conduit with reflux line above the right end of upper putamina group, middle putamina group and lower shell group right end pass through
A piece horizontal duct with diaphragm is connected to, and the left end of the upper putamina group, middle putamina group and lower shell group is by leading
Pipe connection.
The preferred discharge system includes clear liquid discharge system and dope discharge system, and clear liquid discharge system and dope are arranged
System is in parallel with electric control valve out, and the lower end of clear liquid discharge system and dope discharge system is provided with sampling valve, sampling valve
Upper end electromagnetic flowmeter is connected by conduit, the upper end of electromagnetic flowmeter is connected with spinner flowmeter, is located at clear liquid discharge system
Spinner flowmeter upper end on system is provided with purified liquor outlet, and the spinner flowmeter upper end in dope discharge system is provided with dense
Liquid outlet, purified liquor outlet and dope exit are equipped with wafer type Pneumatic butterfly valve.
Preferably, there are three the purified liquor outlet and dope outlet are respectively set and level is placed equidistant with.
Preferably, the clear liquid discharge system pipe material is UPVC, and dope discharge system pipe high-pressure part material is
316L stainless steel, other low-pressure section materials are UPVC.
The beneficial effects of the present invention are:
The present invention is at low cost by membrane separation process recycling formic acid, and the dedicated membrane component of selected formic acid has very strong corrosion resistant
Erosion and contamination resistance, special flow passage design are easy to clean.Automation degree of equipment is high, and liquid level, flow, pressure, temperature have
Line instrument monitors at any time.Valve all selects automatic valve, and Auto Power On is automatic to clean, unattended, liquidometer and frequency converter connection
Dynamic, control valve and flowmeter linkage, automatic adjustment make production keep equilibrium state.Facility compact is beautiful, takes up little area, operation dimension
Shield is simple.Two filters switch at any time, do not influence to produce when replacing filter bag；When two cleaning barrels, one cleaning, one is made up a prescription,
Save scavenging period.Entire invention energy conservation and environmental protection, simple process are high-efficient.
Detailed description of the invention
Fig. 1 is schematic front view of the invention；
Fig. 2 is Section A-A schematic front view of the invention；
Fig. 3 is schematic top plan view of the invention；
Fig. 4 is Section A-A structural schematic diagram of the invention；
Fig. 5 is Section A-A schematic top plan view of the invention；
Fig. 6 is left view schematic diagram of the invention；
Fig. 7 is right side view of the invention；
Appended drawing reference: the fixed bracket of 1-；2- raw material pump；3- manual ball valve；4- electromagnetic flowmeter；5- filter group；501-
First filter；The second filter of 502-；6- high-pressure pump；7- circulating pump；Mono- section of circulating pump of 701-；Bis- sections of circulating pumps of 702-；8-
Eight cun of three core fills putamina；The upper putamina group of 801-；Putamina group in 802-；803- lower shell group；9- reflux line；10- spring non-return
Valve；11- jettron ball valve；12- vertical duct；13- temperature transmitter；14- pressure transmitter；15- electric control valve；16-
Control cabinet；17- solenoid valve box；The pneumatic venting ball valve of 18-；19- sampling valve；20- diaphragm；21- spinner flowmeter；22-
Wafer type Pneumatic butterfly valve；A- material inlet；B- purified liquor outlet；The outlet of c- dope；E- sewage draining exit；F1- recoil import；F2- exhaust
Mouthful.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiments and the drawings are closed, the present invention is further explained, and however, the following embodiments are merely preferred embodiments of the present invention, not
All.Based on the implementation example in the implementation mode, those skilled in the art are obtained without making creative work
Other embodiments belong to protection scope of the present invention.
Specific embodiments of the present invention are described with reference to the accompanying drawing.
As shown in figs. 1-7, the upper end left side of formic acid film reclaimer, including fixed bracket 1, fixed bracket 1 is equipped with original
The upper end of material pump 2, raw material pump 2 is equipped with manual ball valve 3, and the upper end of manual ball valve 3 is connected with electromagnetic flowmeter 4, Electromagnetic Flow
The output end of meter 4 is equipped with filter group 5, and the output end of filter group 5 is connected with high-pressure pump 6, and the output end of high-pressure pump 6 passes through
Pipeline is connected with circulating pump 7, and circulating pump 7 includes one section of circulating pump 701 and two sections of circulating pumps 702, the right end of one section of circulating pump 701
Eight cun of three core is connected with by pipeline and fills putamina 8, and reflux line 9, reflux line 9 and height are connected on the input terminal of high-pressure pump 6
6 junction of press pump is equipped with spring-loaded check valve 10, is equipped with jettron ball valve on the top reflux line 9 of spring-loaded check valve 10
11, the other end of reflux line 9 is connected on eight cun of three core dress putamina 8, the row of being provided on the downside of the left end of eight cun of three core dress putamina 8
The right side of dirty mouth e, sewage draining exit e are connected on reflux line 9 by vertical duct 12, and the lower end of vertical duct 12 is equipped with temperature
Transmitter 13 and pressure transmitter 14, the left side of vertical duct 12 are connected with electric control valve 15, the output of electric control valve 15
End connects discharge system by conduit, and discharge system is located at the front of high-pressure pump 6, is equipped with control cabinet on the left of discharge system
16, the middle position of discharge system is provided with solenoid valve box 17.
Filter group 5 is divided for first filter 501 and the second filter 502, first filter 501 and the second filter
502 upper end is connected to by conduit, and the position on conduit close to first filter 501 and the second filter 502 is equipped with pneumatically
The rear side lower end of venting ball valve 18, first filter 501 and the second filter 502 is provided with sewage draining exit e, first filter
501 and second filter 502 upper end be provided with recoil import f1, the lower end of first filter 501 and the second filter 502
It is connected in parallel on high-pressure pump 6 by conduit, gas is installed on the conduit of 502 lower end of first filter 501 and the second filter
Dynamic venting ball valve 18.Eight cun of three core dress putamina 8 shares three rows, respectively upper putamina group 801, middle putamina group 802 and lower shell group
803, the right end top of upper putamina group 801 is connected to by horizontally disposed conduit with reflux line 9, middle putamina group 802 and lower film
803 right end of shell group is connected to by a horizontal duct with diaphragm 20, upper putamina group 801, middle 802 and of putamina group
The left end of lower shell group 803 is connected to by conduit.
Discharge system includes clear liquid discharge system and dope discharge system, clear liquid discharge system and dope discharge system and electricity
Dynamic regulating valve 15 is in parallel, and the lower end of clear liquid discharge system and dope discharge system is provided with sampling valve 19, sampling valve 19 it is upper
End connects electromagnetic flowmeter 20 by conduit, and the upper end of electromagnetic flowmeter 20 is connected with spinner flowmeter 21, is located at clear liquid and is discharged
21 upper end of spinner flowmeter in system is provided with purified liquor outlet b, 21 upper end of spinner flowmeter in dope discharge system
It is provided at dope outlet c, purified liquor outlet b and dope outlet c and wafer type Pneumatic butterfly valve 22 is installed.
Working principle: by the selective penetrated property of film, the intermolecular separation of different-grain diameter is realized.It is greater than in formic acid extracting solution
The effective component for retaining aperture is intercepted, and the formic acid and water less than retention aperture are recycled through fenestra formation permeate.
Stoste enters raw material pump 2 from material inlet a, is removed by first filter 501 and the second filter 502 mechanical miscellaneous
Matter is pressurized subsequently into high-pressure pump 6, and one section of circulating pump 701 is entered after pressurization and increases circular flow, enters the 1st group 4 later simultaneously
Eight cun of three core of connection fills putamina 8, and the 1st group of 4 eight cun of three cores dress putamina 8 and the 2nd group of 4 eight cun of three cores dress putamina 8 are connected；It is dense
Liquid is filled from the 2nd group of eight cun of three cores enters the 3rd group of 4 three cores of in parallel eight cun by two sections of circulating pumps 702 after the dense side of putamina 8 comes out
Putamina 8 is filled, enters dope bucket from the eight cun of three core dress dense side dope of putamina 8 outlet c later.Formic acid permeate is then from 3 groups eight cun three
The purified liquor outlet b of core dress putamina 8 summarizes into clear liquid bucket.
When cleaning, the valve of Raw material pail and dope bucket, clear liquid bucket is closed, cleaning barrel is switched to.Cleaning solution from raw material pump 2 into
Enter, by same pipeline, dope returns to cleaning barrel from the outlet of the 3rd group of eight cun of three cores dress putamina, and clear liquid is same after summarizing to return
To cleaning barrel.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (7)
1. formic acid film reclaimer, including it is fixed bracket (1), it is characterised in that:
Raw material pump (2) is installed on the left of the upper end of the fixed bracket (1), is provided with material inlet (a) on raw material pump (2), it is former
The upper end of material pump (2) is equipped with manual ball valve (3), and the upper end of manual ball valve (3) is connected with electromagnetic flowmeter (4), Electromagnetic Flow
The output end of meter (4) is equipped with filter group (5), and the output end of filter group (5) is connected with high-pressure pump (6), high-pressure pump (6)
Output end is connected with circulating pump (7) by pipeline, and circulating pump (7) includes one section of circulating pump (701) and two sections of circulating pumps (702),
The right end of one section of circulating pump (701) is connected with eight cun of three core by pipeline and fills putamina (8), on the input terminal of the high-pressure pump (6)
It is connected with reflux line (9), reflux line (9) and high-pressure pump (6) junction are equipped with spring-loaded check valve (10), spring-loaded check valve
(10) it is equipped with jettron ball valve (11) on top reflux line (9), the other end of reflux line (9) is connected to eight cun three
Core fills on putamina (8), is provided with sewage draining exit (e), the right side of sewage draining exit (e) on the downside of the left end of eight cun of three core dress putamina (8)
Be connected on reflux line (9) by vertical duct (12), the lower end of vertical duct (12) be equipped with temperature transmitter (13) and
Pressure transmitter (14) is connected with electric control valve (15) on the left of vertical duct (12), the electric control valve (15) it is defeated
Outlet connects discharge system by conduit, and discharge system is located at the front of high-pressure pump (6), is equipped with control on the left of discharge system
Cabinet (16) processed, the middle position of discharge system are provided with solenoid valve box (17).
2. formic acid film reclaimer according to claim 1, it is characterised in that: be arranged on the jettron ball valve (11)
There is exhaust outlet (f2).
3. formic acid film reclaimer according to claim 1, it is characterised in that: the filter group (5) is divided into the first mistake
The upper end of filter (501) and the second filter (502), first filter (501) and the second filter (502) is connected by conduit
Logical, the position on conduit close to first filter (501) and the second filter (502) is equipped with pneumatic venting ball valve (18), the
The rear side lower end of one filter (501) and the second filter (502) is provided with sewage draining exit (e), first filter (501) and
The upper end of tow filtrator (502) is provided with recoil import (f1), the lower end of first filter (501) and the second filter (502)
It is connected in parallel on high-pressure pump (6) by conduit, is pacified on the conduit of first filter (501) and the second filter (502) lower end
Equipped with pneumatic venting ball valve (18).
4. formic acid film reclaimer according to claim 1, it is characterised in that: eight cun of three core dress putamina (8) is shared
Three rows, respectively upper putamina group (801), middle putamina group (802) and lower shell group (803), the right end top of upper putamina group (801)
It is connected to by horizontally disposed conduit with reflux line (9), middle putamina group (802) and lower shell group (803) right end pass through one
Horizontal duct connection with diaphragm (20), the upper putamina group (801), middle putamina group (802) and lower shell group
(803) left end is connected to by conduit.
5. formic acid film reclaimer according to claim 1, it is characterised in that: the discharge system includes clear liquid discharge system
System and dope discharge system, clear liquid discharge system and dope discharge system are in parallel with electric control valve (15), clear liquid discharge system
It is provided with sampling valve (19) with the lower end of dope discharge system, the upper end of sampling valve (19) connects electromagnetic flowmeter by conduit
(4), the upper end of electromagnetic flowmeter (4) is connected with spinner flowmeter (21), the spinner flowmeter in clear liquid discharge system
(21) upper end is provided with purified liquor outlet (b), and spinner flowmeter (21) upper end in dope discharge system is provided with dope and goes out
Mouth (c), purified liquor outlet (b) and dope outlet place (c) are equipped with wafer type Pneumatic butterfly valve (22).
6. formic acid film reclaimer according to claim 5, it is characterised in that: the purified liquor outlet (b) and dope export
(c) there are three being respectively set and level is placed equidistant with.
7. formic acid film reclaimer according to claim 1, it is characterised in that: the clear liquid discharge system pipe material is
UPVC, dope discharge system pipe high-pressure part material are 316L, other low-pressure section materials are UPVC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027709.3A CN109663408A (en) | 2019-01-11 | 2019-01-11 | Formic acid film reclaimer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027709.3A CN109663408A (en) | 2019-01-11 | 2019-01-11 | Formic acid film reclaimer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109663408A true CN109663408A (en) | 2019-04-23 |
Family
ID=66149353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910027709.3A Pending CN109663408A (en) | 2019-01-11 | 2019-01-11 | Formic acid film reclaimer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109663408A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6251271B1 (en) * | 1997-06-19 | 2001-06-26 | Aktiebolaget Electrolux | Device for purifying a fluid |
| CN202606034U (en) * | 2012-06-19 | 2012-12-19 | 北京鑫佰利科技发展有限公司 | Continuous nanofiltration concentrating device |
| CN202876653U (en) * | 2012-09-29 | 2013-04-17 | 北京鑫佰利科技发展有限公司 | Ceramic film filter device |
| CN205461815U (en) * | 2016-03-29 | 2016-08-17 | 青岛万图明生物制品有限公司 | Equipment of straining is received in concentration of intermittent type formula membrane |
| CN206599461U (en) * | 2017-01-26 | 2017-10-31 | 浙江碧源环保科技有限公司 | A kind of reverse osmosis concentrated water internal circulation system |
-
2019
- 2019-01-11 CN CN201910027709.3A patent/CN109663408A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6251271B1 (en) * | 1997-06-19 | 2001-06-26 | Aktiebolaget Electrolux | Device for purifying a fluid |
| CN202606034U (en) * | 2012-06-19 | 2012-12-19 | 北京鑫佰利科技发展有限公司 | Continuous nanofiltration concentrating device |
| CN202876653U (en) * | 2012-09-29 | 2013-04-17 | 北京鑫佰利科技发展有限公司 | Ceramic film filter device |
| CN205461815U (en) * | 2016-03-29 | 2016-08-17 | 青岛万图明生物制品有限公司 | Equipment of straining is received in concentration of intermittent type formula membrane |
| CN206599461U (en) * | 2017-01-26 | 2017-10-31 | 浙江碧源环保科技有限公司 | A kind of reverse osmosis concentrated water internal circulation system |
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Application publication date: 20190423 |
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| RJ01 | Rejection of invention patent application after publication |