CN106430280B - Ammonia process produces the decomposition stillpot of metallic compound - Google Patents

Ammonia process produces the decomposition stillpot of metallic compound Download PDF

Info

Publication number
CN106430280B
CN106430280B CN201611109679.3A CN201611109679A CN106430280B CN 106430280 B CN106430280 B CN 106430280B CN 201611109679 A CN201611109679 A CN 201611109679A CN 106430280 B CN106430280 B CN 106430280B
Authority
CN
China
Prior art keywords
area
stillpot
bonding pad
speed heat
decomposition
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.)
Active
Application number
CN201611109679.3A
Other languages
Chinese (zh)
Other versions
CN106430280A (en
Inventor
杜宗鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=58222846&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN106430280(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to CN201611109679.3A priority Critical patent/CN106430280B/en
Publication of CN106430280A publication Critical patent/CN106430280A/en
Priority to TW106210257U priority patent/TWM550825U/en
Priority to TW106123383A priority patent/TWI653197B/en
Application granted granted Critical
Publication of CN106430280B publication Critical patent/CN106430280B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G3/00Compounds of copper
    • C01G3/02Oxides; Hydroxides
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G3/00Compounds of copper
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G53/00Compounds of nickel
    • C01G53/06Carbonates
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G9/00Compounds of zinc

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Accessories For Mixers (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The invention discloses the decomposition stillpot that a kind of ammonia process produces metallic compound, including:Slot shell is precipitated, it includes top area, upper bonding pad, froth breaking area, lower bonding pad, the He Di areas of speed heat area being connected with each other from top to bottom;The top area is provided with mixed gas outlet;The upper bonding pad is provided with air intake and charge door;The bottom area is provided with drain hole;Orifice plate provided with an opening, correspondence is below the bottom in the speed heat area in precipitation slot shell, and the edge laminating of orifice plate is fixed on the inwall of precipitation slot shell;Air stirring pipe, it is located at stillpot enclosure interior, and one end connects the air intake, and the opening of the other end through the orifice plate is stretched into the bottom area below the orifice plate;Heating coil group, is fixed on orifice plate;Wherein, the internal diameter in froth breaking area is more than the internal diameter in speed heat area.

Description

Ammonia process produces the decomposition stillpot of metallic compound
Technical field
The invention belongs to field of chemical equipment, and in particular to a kind of ammonia process produces the decomposition stillpot of metallic compound.
Background technology
At present, metallic compound include nickelous carbonate, zinc carbonate,(Activity)Cupric oxide, the technological process of production length of copper carbonate, Power consumption is big, and appliance arrangement is complicated, and there are various shortcomings in technique.
For example:Active copper oxide has purity height, particle diameter is small, specific surface area is big, dissolved in acid as defined in electroplating industry The features such as speed is fast, has many specific performances and great potential using value in fields such as electronics, catalysis.Generally produce high-purity Active oxidation copper powder mainly uses carbonate calcination method, because carbonate calcination method technological process is long, and subsequent wash is difficult, product Purity is not high, poor dispersion, while the Product Activity that causes of grain coarsening is not high after calcining, cost is of a relatively high, have high salt Waste water is produced.
And, on the production technology of active copper oxide, in some presently disclosed patents of invention, mainly there is following several Conventional technique:
(1) Chinese patent of Application No. 01127175.2 is disclosed using copper sulphate and copper material as raw material, through 80-85 DEG C Low-temperature oxidation obtain cupric sulphate crystal, then prepare solution and sodium hydroxide and react, through ball milling, press filtration, washing, drying, powder The technique of the active copper oxide of broken system.
(2) Chinese patent of Application No. 200710076208.1 is disclosed produces oxygen with alkaline etching waste liquid for producing through ammonia still process The technique for changing copper.
Above method haves the shortcomings that technique, device are complicated and it is high to consume energy, and can produce a large amount of washes, after giving Continuous processing makes troubles.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention proposes that a kind of environmentally friendly ammonia process produces the technique of metallic compound, and And specifically provide a kind of decomposition stillpot that metallic compound is produced for ammonia process.
The ammonia process that the present invention is provided produces the decomposition stillpot of metallic compound, including:
Slot shell is precipitated, its top area for including being connected with each other from top to bottom, upper bonding pad, froth breaking area, lower bonding pad, speed heat He Di areas of area;The top area is provided with mixed gas outlet;The upper bonding pad is provided with air intake and charge door;The bottom area is provided with Drain hole;
Orifice plate provided with an opening, correspondence is located at below the bottom in the speed heat area in precipitation slot shell, orifice plate Edge laminating is fixed on the inwall of precipitation slot shell;
Air stirring pipe, it is located at stillpot enclosure interior, and one end connects the air intake, and the other end passes through the hole The opening of plate is stretched into the bottom area below the orifice plate;
Heating coil group, is fixed on orifice plate;
Wherein, the internal diameter in froth breaking area is more than the internal diameter in speed heat area.
Preferably, the speed heat area of the precipitation slot shell is provided with thermal medium entrance and thermal medium outlet, and the thermal medium enters The entrance of the mouth connection heating coil group, the thermal medium outlet connects the outlet of the heating coil group.
Preferably, the heating coil group includes the heating coil of multiple series connection.
Preferably, the internal diameter in the froth breaking area is more than 1.1 times of internal diameter of speed heat area.
Preferably, the internal diameter in the froth breaking area is 1.1 times ~ 5 times of internal diameter of speed heat area.
Preferably, above-mentioned ammonia process produces the decomposition stillpot of metallic compound, in addition to:First thermal insulation casing, its set The outside of the position provided with heating muff group of the precipitation slot shell is located at, the thermal medium entrance of first thermal insulation casing connects It is arranged in the thermal medium outlet in the speed heat area.
Preferably, above-mentioned ammonia process produces the decomposition stillpot of metallic compound, in addition to:Second thermal insulation casing, its set It is located on the outside of the bottom area, the thermal medium entrance of second thermal insulation casing is connected at the thermal medium of first thermal insulation casing Outlet.
Preferably, the top area is additionally provided with peep hole.
Preferably, the internal diameter in the froth breaking area is more than the internal diameter in top area.
Specifically, the top area, froth breaking area, speed heat area are cylindrical shape, and the upper bonding pad and lower bonding pad are frustum cone cylinder Shape, the bottom area is taper barrel;The upper bonding pad minor diameter top surface connection top area bottom surface, the upper bonding pad it is small Diameter top surface is identical with the cross section in the top area;The top surface in the major diameter bottom surface connection froth breaking area of the upper bonding pad, it is described The major diameter bottom surface of upper bonding pad is identical with the cross section in the froth breaking area;The major diameter top surface connection of the lower bonding pad is described Froth breaking area bottom surface, the major diameter top surface of the lower bonding pad is identical with the cross section in the froth breaking area;The lower bonding pad it is small Diameter base connects the top surface in the speed heat area, the cross section phase of the minor diameter bottom surface of the lower bonding pad and the speed heat area Together;The top surface in the bottom area connects the bottom surface in the speed heat area, and the top surface in the bottom area is identical with the cross section in the speed heat area.
The present invention can reach following technique effect:
The air agitating function of the decomposition stillpot of the present invention makes the metallic compound of generation not precipitate, while the sky blasted Gas takes away the resistance of Ammonia valatilization in substantial amounts of ammonia, reduction liquid when rising, and reduction ammonia generates ammonia by solution double absorption The possibility of water.Meanwhile, the first thermal insulation casing and the second thermal insulation casing ensure that making full use of for heat.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the decomposition stillpot of the ammonia process production metallic compound of the present invention.
Fig. 2 is that the ammonia process of the present invention produces the process flow diagram of metallic compound.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be with It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in Fig. 2 the ammonia process production metallic compound that the present invention is used(Including cupric oxide, copper carbonate, zinc carbonate and carbon Sour nickel etc.)Principle be:Metal(Copper, nickel, zinc etc.), ammonium bicarbonate solution(The mixed solution of ammonium bicarbonate aqueous solution and ammoniacal liquor)And oxygen Solid/liquid/gas reactions, form metal complex, metal complex are heated, according to the difference of heating-up temperature, ammonia and gold can be generated Belong to oxide(Or metal carbonate)Deng.
By taking the preparation of active copper oxide as an example, comprise the following steps:
(1)Leach complex reaction:Cathode copper is taken, ammonium bicarbonate solution is added, and blasts air, complex reaction is carried out, until anti- Answer copper content in liquid up to standard, obtain cuoxam.Reaction equation is as follows:
Cu+2NH4HCO3+2NH3+O2=Cu(NH3)4CO3+2H2O。
(2)To step(1)Obtained copper ammon solution carries out heat resolve, obtains copper carbonate or cupric oxide(Copper carbonate is calcined After obtain active copper oxide).
(3)Tail gas is absorbed.
The decomposition stillpot for the ammonia process production metallic compound that the present invention is provided is used in above-mentioned technique to metal complex (Cuoxam)The step of carrying out heat resolve reaction.
As shown in figure 1, the ammonia process of the present invention produces the decomposition stillpot of metallic compound, including:
Slot shell 1 is precipitated, its top area 10 for including being connected with each other from top to bottom, upper bonding pad 11, froth breaking area 12, lower connection Area 13, speed heat area 14 and bottom area 15.Top area 10, froth breaking area 12, speed heat area 14 are cylindrical shape, upper bonding pad 11 and lower bonding pad 13 For round platform tubular, bottom area 15 is taper barrel.The internal diameter in froth breaking area 12 is more than the internal diameter in speed heat area 14, it is preferable that froth breaking area 12 Internal diameter be more than 1.1 times of internal diameter of speed heat area 14, the more preferably internal diameter in froth breaking area 12 is the 1.1 of the internal diameter in speed heat area 14 Times ~ 5 times(Froth breaking and gas-liquid separation can effectively be realized by being arranged such).The internal diameter in froth breaking area 12 is more than the internal diameter in top area 10.On The bottom surface in the minor diameter top surface connection top area 10 of bonding pad 11, the minor diameter top surface of upper bonding pad 11 and the cross section phase for pushing up area 10 Together;The top surface in the major diameter bottom surface connection froth breaking area 12 of upper bonding pad 11, major diameter bottom surface and the froth breaking area 12 of upper bonding pad 11 Cross section it is identical;The bottom surface of major diameter top surface connection froth breaking area 12 of lower bonding pad 13, the major diameter top surface of lower bonding pad 13 with The cross section in froth breaking area 12 is identical;The top surface in the minor diameter bottom surface connection speed heat area 14 of lower bonding pad 13, lower bonding pad 13 it is small Diameter base is identical with the cross section in speed heat area 14;The bottom surface in the top surface connection speed heat area 14 in bottom area 15, the top surface in bottom area 15 with The cross section in speed heat area 14 is identical.
Push up area 10 and be provided with mixed gas outlet 100 and peep hole 101;Upper bonding pad 11 is provided with air intake 110 and charge door 111;Bottom area 15 is provided with drain hole 150.
Orifice plate 2 provided with an opening, correspondence is below the bottom in speed heat area 14 in precipitation slot shell 1 for it, orifice plate 2 Edge laminating be fixed on precipitation slot shell 1 inwall;
Air stirring pipe 3, it is inside precipitation slot shell 1, and one end connection air intake 110, the other end passes through orifice plate 2 Opening stretch into the bottom area 15 of the lower section of orifice plate 2;
Heating coil group 4, heating coil group 4 includes the heating coil 40 of multiple series windings, and it is fixed on orifice plate 2;Speed heat Area 14 is provided with thermal medium entrance 140 and thermal medium outlet 141, the entrance of the connection heating coil of thermal medium entrance 140 group 4(In figure It is not shown), the outlet of the connection heating coil of thermal medium outlet 141 group 4(Not shown in figure).
First thermal insulation casing 5, it is set in the outside of the position provided with heating muff group 4 of precipitation slot shell 1, and first protects The thermal medium entrance 50 of warm sleeve 5 is connected at the thermal medium outlet 141 in speed heat area 14(Not shown in figure).
Second thermal insulation casing 6, it is set in the outside of bottom area 15, and the thermal medium entrance 60 of the second thermal insulation casing 6 is connected at The thermal medium outlet 51 of first thermal insulation casing.
So that active copper oxide is produced as an example, the decomposition decomposed in stillpot of ammonia process production metallic compound of the invention is sunk Shallow lake flow is:Filtered cupric ammine complex solution, is entered by charge door 111 and decomposes stillpot, entered by air stirring pipe 3 Orifice plate 2 of the air through bottom is uniformly distributed progress bubbling stirring, and it is fast that cupric ammine complex solution is heated coil pipe group 4 in speed heat area 14 Speed heating(Thermal medium in heating coil group can be steam), when solution reaches certain temperature, decompose generation copper carbonate(Or oxygen Change copper)With mixing ammonia, copper carbonate(Or cupric oxide)Suspended in the solution under air stirring.Produced because of fast decoupled ammonia A large amount of foams realize froth breaking and gas-liquid separation in froth breaking area 12, and the blended gas outlet 100 of the mixing ammonia after separation is emitted into Condenser is condensed into mixing ammoniacal liquor.
The agitating function of the air stirring pipe 3 of the decomposition stillpot of the present invention makes the metallic compound of generation(Copper carbonate)No Precipitation, while the air blasted takes away the resistance of Ammonia valatilization in substantial amounts of ammonia, reduction liquid when rising, reduction ammonia is molten Liquid double absorption generates the possibility of ammoniacal liquor.Meanwhile, the first thermal insulation casing 5 and the second thermal insulation casing 6 ensure that the abundant of heat Utilize.
Embodiment described above is only the preferred embodiment to absolutely prove the present invention and being lifted, protection model of the invention Enclose not limited to this.Equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention Protection domain within.Protection scope of the present invention is defined by claims.

Claims (10)

1. a kind of ammonia process produces the decomposition stillpot of metallic compound, it is characterised in that including:
Precipitate slot shell, its top area for including being connected with each other from top to bottom, upper bonding pad, froth breaking area, lower bonding pad, speed heat area and Bottom area;The top area is provided with mixed gas outlet;The upper bonding pad is provided with air intake and charge door;The bottom area is provided with blowing Mouthful;
Orifice plate provided with an opening, correspondence is below the bottom in the speed heat area in precipitation slot shell, the edge of orifice plate Laminating is fixed on the inwall of precipitation slot shell;
Air stirring pipe, it is located at stillpot enclosure interior, and one end connects the air intake, and the other end passes through the orifice plate Opening is stretched into the bottom area below the orifice plate;
Heating coil group, is fixed on orifice plate;
Wherein, the internal diameter in froth breaking area is more than the internal diameter in speed heat area.
2. ammonia process according to claim 1 produces the decomposition stillpot of metallic compound, it is characterised in that the stillpot The speed heat area of housing is provided with thermal medium entrance and thermal medium outlet, and the thermal medium entrance connects entering for the heating coil group Mouthful, the thermal medium outlet connects the outlet of the heating coil group.
3. ammonia process according to claim 1 or 2 produces the decomposition stillpot of metallic compound, it is characterised in that described to add Hot coil group includes the heating coil of multiple series connection.
4. ammonia process according to claim 1 or 2 produces the decomposition stillpot of metallic compound, it is characterised in that described to disappear The internal diameter of bleb district is more than 1.1 times of the internal diameter in speed heat area.
5. ammonia process according to claim 4 produces the decomposition stillpot of metallic compound, it is characterised in that the froth breaking area Internal diameter be 1.1 times ~ 5 times of internal diameter of speed heat area.
6. ammonia process according to claim 1 or 2 produces the decomposition stillpot of metallic compound, it is characterised in that also include: First thermal insulation casing, it is set in the outside of the position provided with heating muff group of the precipitation slot shell, first insulation The thermal medium entrance of sleeve pipe is connected at the thermal medium outlet in the speed heat area.
7. ammonia process according to claim 6 produces the decomposition stillpot of metallic compound, it is characterised in that also include:The Two thermal insulation casings, it is set on the outside of the bottom area, and the thermal medium entrance of second thermal insulation casing is connected at described first The thermal medium outlet of thermal insulation casing.
8. ammonia process according to claim 1 produces the decomposition stillpot of metallic compound, it is characterised in that the top area is also Provided with peep hole.
9. ammonia process according to claim 1 produces the decomposition stillpot of metallic compound, it is characterised in that the froth breaking area Internal diameter be more than top area internal diameter.
10. the ammonia process according to claim 1 or 9 produces the decomposition stillpot of metallic compound, it is characterised in that the top Area, froth breaking area, speed heat area are cylindrical shape, and the upper bonding pad and lower bonding pad are round platform tubular, and the bottom area is taper barrel; The bottom surface in the minor diameter top surface connection top area of the upper bonding pad, the minor diameter top surface of the upper bonding pad and the horizontal stroke in the top area Section is identical;The top surface in the major diameter bottom surface connection froth breaking area of the upper bonding pad, the major diameter bottom surface of the upper bonding pad with The cross section in the froth breaking area is identical;The major diameter top surface connection froth breaking area bottom surface of the lower bonding pad, the lower connection The major diameter top surface in area is identical with the cross section in the froth breaking area;The minor diameter bottom surface of the lower bonding pad connects the speed heat area Top surface, the minor diameter bottom surface of the lower bonding pad is identical with the cross section in the speed heat area;The top surface connection institute in the bottom area The bottom surface in speed heat area is stated, the top surface in the bottom area is identical with the cross section in the speed heat area.
CN201611109679.3A 2016-12-06 2016-12-06 Ammonia process produces the decomposition stillpot of metallic compound Active CN106430280B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201611109679.3A CN106430280B (en) 2016-12-06 2016-12-06 Ammonia process produces the decomposition stillpot of metallic compound
TW106210257U TWM550825U (en) 2016-12-06 2017-07-12 Decomposition and sedimentation tank for producing metal compounds by ammonia method
TW106123383A TWI653197B (en) 2016-12-06 2017-07-12 Decomposition and precipitation tank for metal compounds produced by ammonia method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611109679.3A CN106430280B (en) 2016-12-06 2016-12-06 Ammonia process produces the decomposition stillpot of metallic compound

Publications (2)

Publication Number Publication Date
CN106430280A CN106430280A (en) 2017-02-22
CN106430280B true CN106430280B (en) 2017-09-29

Family

ID=58222846

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611109679.3A Active CN106430280B (en) 2016-12-06 2016-12-06 Ammonia process produces the decomposition stillpot of metallic compound

Country Status (2)

Country Link
CN (1) CN106430280B (en)
TW (2) TWM550825U (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1358666A (en) * 2001-10-26 2002-07-17 骆天荣 Process and equipment for preparing basic carbonate nano granule by ammonia complex liquid tower distilling ammonia crystalling
CN103011245A (en) * 2012-12-21 2013-04-03 泰兴冶炼厂有限公司 Method for preparing high-purity basic cupric carbonate by outer-coil internal-stirring type reaction kettle
CN103011251A (en) * 2012-12-21 2013-04-03 泰兴冶炼厂有限公司 Method for continuously preparing high-purity low-chloride electroplating copper oxide
CN103011252A (en) * 2012-12-21 2013-04-03 泰兴冶炼厂有限公司 Method for producing high-purity low-chlorine electroplating-grade cupric oxide continuously from basic copper carbonate
CN103101958A (en) * 2012-12-21 2013-05-15 泰兴冶炼厂有限公司 Method for preparing high-activity electroplating grade copper oxide from basic cupric carbonate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1358666A (en) * 2001-10-26 2002-07-17 骆天荣 Process and equipment for preparing basic carbonate nano granule by ammonia complex liquid tower distilling ammonia crystalling
CN103011245A (en) * 2012-12-21 2013-04-03 泰兴冶炼厂有限公司 Method for preparing high-purity basic cupric carbonate by outer-coil internal-stirring type reaction kettle
CN103011251A (en) * 2012-12-21 2013-04-03 泰兴冶炼厂有限公司 Method for continuously preparing high-purity low-chloride electroplating copper oxide
CN103011252A (en) * 2012-12-21 2013-04-03 泰兴冶炼厂有限公司 Method for producing high-purity low-chlorine electroplating-grade cupric oxide continuously from basic copper carbonate
CN103101958A (en) * 2012-12-21 2013-05-15 泰兴冶炼厂有限公司 Method for preparing high-activity electroplating grade copper oxide from basic cupric carbonate

Also Published As

Publication number Publication date
TWI653197B (en) 2019-03-11
TWM550825U (en) 2017-10-21
TW201738180A (en) 2017-11-01
CN106430280A (en) 2017-02-22

Similar Documents

Publication Publication Date Title
CN104402734B (en) A kind of method reclaiming dimethylamine in nicosulfuron waste water
CN103991894A (en) Preparation method for active copper oxide
CN107946687A (en) A kind of system and technique for continuously recycling waste and old ternary lithium ion battery
CN104891551A (en) Copper oxide making method and copper oxide making equipment
JP2015157741A (en) Manufacturing method of copper oxide and manufacturing facility of copper oxide
CN103725889A (en) Method for leaching copper and nickel in leaching slag of matte/ice nickel with assistance of microwave
CN106115720A (en) A kind of method utilizing rice hull ash to prepare nano silicon
CN103303961B (en) Preparation method of spherical electroplating-level copper oxide powder
CN106430280B (en) Ammonia process produces the decomposition stillpot of metallic compound
CN206680193U (en) Ammonia process produces the decomposition stillpot of metallic compound
CN206255850U (en) Ammonia process produces the device of metallic compound
CN206255851U (en) Ammonia process produces the molten metal leaching tanks of metallic compound
CN106395882B (en) Ammonia process produces the device and technique of metallic compound
CN103966431A (en) Technology for catalyzing nickel and cobalt leaching reaction by microwave heating
CN106430279B (en) Ammonia process produces molten the metal leaching tanks and extract technology of metallic compound
CN206334511U (en) Ammonia process produces the absorption plant of metallic compound
CN203976931U (en) Energy-efficient equipment in succinic acid preparation
CN206276369U (en) A kind of association response device of glyoxal oxidation synthesis glyoxylate
CN205907202U (en) Automatic circulation system of urotropine mother liquor
TWI621473B (en) Absorbing device of using ammonia producing metal compounds
TWI498280B (en) Method of manufacturing basic copper carbonate
CN113511688B (en) FeVO (FeVO) 4 Preparation method of hollow sphere
CN205773428U (en) A kind of cobalt oxide production equipment
CN107416874A (en) A kind of dealkalization method of coal ash lifting aluminium slag
CN106986802B (en) A method of synthesis thiocarbohydrazide

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: 215300 room 701, unit 2, 206, central street, Quanshan District, Xuzhou, Jiangsu.

Patentee after: Du Zongxin

Address before: 215341 No. 195, Shan Pu Road, Kunshan, Suzhou, Jiangsu

Patentee before: Du Zongxin