CN207238736U - The processing system of waste brine sludge in production of sodium chlorate - Google Patents
The processing system of waste brine sludge in production of sodium chlorate Download PDFInfo
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- CN207238736U CN207238736U CN201721101828.1U CN201721101828U CN207238736U CN 207238736 U CN207238736 U CN 207238736U CN 201721101828 U CN201721101828 U CN 201721101828U CN 207238736 U CN207238736 U CN 207238736U
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
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Abstract
The utility model discloses a kind of processing system of waste brine sludge in production of sodium chlorate, it includes grinder, oxidation digestion series, washing system, goes back original system and wastewater regulation tank.The utility model has the advantage of, it is ground by grinder broken, the chromium ion for making to wrap up in waste brine sludge is released, improve the efficiency of oxidation and the dissolution of the chromium ion wrapped up in waste brine sludge, the processing such as washed and reduced again afterwards, chromium ion is removed from waste brine sludge, solve the problems, such as that chromium ion intractability is big in waste brine sludge, removing is halfway；Waste heat in sodium chlorate production system is effectively utilized, and the flushing water of generation is recycled in oxidation dissolution retort, energy consumption is relatively low, and water consume is relatively low, reduces processing cost.
Description
Technical field：
It the utility model is related to trade waste process field, the processing of waste brine sludge in more particularly to a kind of production of sodium chlorate
System.
Background technology：
During production of sodium chlorate, to be catalyzed pH value in main reaction, the growing amount for reducing oxygen, control electrolytic cell, going
Except the perchlorate produced by cell reaction, sodium dichromate need to be added into system；Sodium chlorate per ton is produced to be both needed to add
Sodium dichromate about 0.118kg.Meanwhile during production of sodium chlorate, for remove raw material salt in calcium ion, magnesium ion and sulfate radical from
Son, need to add sodium hydroxide, sodium carbonate, calcium chloride into production system, and calcium ion, magnesium ion and sulfate ion are precipitated；
In the process, the chromium ion added in production system enters clarifier in the form of sodium dichromate, calcium chromate with industrial wastewater
It is middle precipitation and formed " waste brine sludge ".In dongle clarifier, produce with calcium carbonate, sodium chloride and a small amount of calcium sulfate, calcium chromate, chromium
Sour sodium is the white waste brine sludge of main component；In sulfate clarifier, produce with calcium sulfate, sodium chlorate, calcium chromate and a small amount of
Sodium chromate and the yellow waste brine sludge that calcium carbonate is main component.
Chromium ion is mainly Cr in waste brine sludge3+And Cr6+, Cr6+There are severe toxicity, Cr3+It is changed into Cr after being aoxidized6+；It is in general, main
The chromium ion in waste brine sludge is washed out and handled by the method for washing.But due to the existence form of chromium ion in waste brine sludge
The diversified forms such as varied including free, absorption, parcel, simply it, which is washed, can only remove free chromium ion, and
Cannot go divided by adsorb and parcel form existing for chromium ion；If not to adsorbing and wrapping up existing for form at chromium ion
Manage, the remaining Cr in waste brine sludge3+Cr can be oxidized to again with environmental change6+, cause chromium ion removing toxic substances difficulty in waste brine sludge
Greatly, the problem of can not thoroughly removing, cause ecological environment around the pollution of continuation, is caused for ecological environment and people's health
High risks.It is corrosion-resistant to wait good characteristic because hard and crisp with matter meanwhile chromium is the glossiness metal of silvery white, extensively should
It is a kind of very important mineral resources for fields such as metallurgy, chemical industry, cast iron, fire resisting and high-precision end science and technology, if can be by abraum salt
Chromium ion in mud is recycled, and not only solves the problem of environmental pollution of waste brine sludge, but also breaks restriction sodium chlorate
The bottleneck of production, how to handle the waste brine sludge in production of sodium chlorate is urgent problem.
At present, the processing method of chromium ion is also immature in waste brine sludge, mostly in theoretical research stage.Notification number is
The patent " method for separating and recovering chromium of the waste residue containing Cr VI " of CN101209873A, using sodium carbonate or sodium acid carbonate as mineralising
Agent, improves Cr6+Dissolution rate, but the Cr in waste brine sludge3+It is difficult to be dissolved out, causes total chrome content in waste brine sludge exceeded.
Notification number is a kind of patent " processing method of chromic salts mud " of CN105016387A, makes chromium using oxidant, leaching agent etc. is added
Cr in salt slurry3+It is converted into Cr6+And dissolution, to improve Cr6+Dissolution rate, improve waste brine sludge in chromium ion removal efficiency；But its
There are problems with, waste brine sludge particle is hard, not readily dissolves, it does not carry out waste brine sludge any processing, is wrapped up in waste brine sludge
Cr3+It is difficult to leach, the processing to chromium ion is not thorough, and the total chrome content in waste brine sludge still can be exceeded.Therefore a kind of be adapted to is found
The processing method of sodium chlorate factory waste brine sludge is urgent problem.
Utility model content：
The purpose of this utility model is to provide give up in the production of sodium chlorate that a kind for the treatment of effeciency is high, water consume is low, energy consumption is low
The processing system of salt slurry.
The purpose of this utility model is implemented by following technical solution：The processing system of waste brine sludge in production of sodium chlorate, it is wrapped
Include grinder, oxidation digestion series, washing system, go back original system and wastewater regulation tank, the discharge port of the grinder with it is described
Aoxidize digestion series oxidation dissolution retort feed inlet connection, it is described oxidation digestion series water receiving tank outlet with it is described
The also inlet communication of the reduction reaction can of original system, the liquid outlet of the reduction centrifuge for going back original system are adjusted with the waste water
The water inlet connection of groove, outlet and the waste plant of the wastewater regulation tank carry out water pipeline and connect, the oxygen of the oxidation digestion series
The slag notch for changing dissolution centrifuge is connected with the feed inlet of the slag receiving trough of the washing system, the outlet and washing of the slag receiving trough
The inlet communication of centrifuge, it is described washing centrifuge water outlet by triple valve respectively with it is described oxidation dissolution retort into
The mouth of a river, the inlet communication of the water receiving tank.
Further, the oxidation digestion series include the oxidation dissolution retort, oxidant storage tank, dissolution agent storage
Tank, water supply line, the oxidation dissolution centrifuge and the water receiving tank, the oxidation dissolution retort is to be pressurized agitator tank, institute
The water inlet for stating oxidation dissolution retort is connected with the water supply line, it is described aoxidize dissolution retort respectively with the oxidant
Storage tank, the dissolution agent storage tank are connected by pipeline, the outlet of the oxidation dissolution retort and the oxidation dissolution centrifuge
Inlet communication, the inlet communication of oxidation dissolution centrifuge liquid outlet and the water receiving tank.
Further, the washing system includes the slag receiving trough, the washing centrifuge and de- chromium filter residue storage tank, described
The water inlet of slag receiving trough is connected with the hot water outlet of the electrolysis heat exchanger of sodium chlorate production system, the outlet of the slag receiving trough and institute
State washing centrifuge inlet communication, it is described washing centrifuge flushing water inlet connected with flushing water pipeline, it is described wash from
The inlet communication of the slag notch of scheming and the de- chromium filter residue storage tank.
Further, the original system of going back includes the reduction reaction can, reducing agent storage tank, the reduction centrifuge and hydrogen
Chromium oxide storage tank, the reduction reaction can are connected with the reducing agent storage tank by pipeline, the outlet of the reduction reaction can with
The inlet communication of the reduction centrifuge, the inlet communication of the slag notch and the chromium hydroxide storage tank of the reduction centrifuge.
The advantages of the utility model：1st, it is ground by grinder broken, the chromium ion for making to wrap up in waste brine sludge is released
Put, improve the efficiency of oxidation and the dissolution of chromium ion wrapped up in waste brine sludge, the processing such as washed and reduced again afterwards, make chromium
Ion is removed from waste brine sludge, solves the problems, such as that chromium ion intractability is big in waste brine sludge, removing is halfway；2nd, efficiently use
Waste heat in sodium chlorate production system, and the flushing water of generation is recycled in oxidation dissolution retort, energy consumption is relatively low, water consume
It is relatively low, reduce processing cost.
Brief description of the drawings：
Fig. 1 is the system connection diagram of embodiment 1.
Grinder 1, oxidation dissolution retort 2, oxidant storage tank 3, dissolution agent storage tank 4, water supply line 5, oxidation dissolution from
Scheming 6, water receiving tank 7, slag receiving trough 8, is electrolysed heat exchanger 9, washs centrifuge 10, flushing water pipeline 11, takes off chromium filter residue storage tank 12, also
Former retort 13, reducing agent storage tank 14, reduces centrifuge 15, chromium hydroxide storage tank 16, wastewater regulation tank 17, waste plant carrys out water pipe
Line 18.
Embodiment：
Embodiment 1：
As shown in Figure 1, in production of sodium chlorate waste brine sludge processing system, it include grinder 1, oxidation digestion series, wash
Wash system, go back original system and wastewater regulation tank 17, the oxidation dissolution retort 2 of the discharge port and oxidation digestion series of grinder 1
Feed inlet connection, aoxidize digestion series water receiving tank 7 outlet with go back original system reduction reaction can 13 inlet communication, also
The liquid outlet of the reduction centrifuge 15 of original system is connected with the water inlet of wastewater regulation tank 17, and the outlet of wastewater regulation tank 17 is with giving up
Water factory carrys out water pipeline 18 and connects, and aoxidizes the slag notch of the oxidation dissolution centrifuge 6 of digestion series and the slag receiving trough 8 of washing system
Feed inlet connects, and the outlet of slag receiving trough 8 and the inlet communication of washing centrifuge 10, the water outlet of washing centrifuge 10 pass through threeway
Valve respectively with aoxidize the water inlet of dissolution retort 2, water receiving tank 7 inlet communication.
Aoxidizing digestion series includes oxidation dissolution retort 2, oxidant storage tank 3, dissolution agent storage tank 4, water supply line 5, oxygen
Change dissolution centrifuge 6 and water receiving tank 7, oxidation dissolution retort 2 is supercharging agitator tank, the water inlet of oxidation dissolution retort 2 with
Water supply line 5 connects, and oxidation dissolution retort 2 is connected with oxidant storage tank 3, dissolution agent storage tank 4 by pipeline respectively, and oxidation is molten
The pipeline gone out between retort 2 and oxidant storage tank 3 is equipped with oxidation control valve, oxidation dissolution retort 2 and dissolution agent storage tank 4
Between pipeline be equipped with dissolution control valve, the outlet of oxidation dissolution retort 2 and the inlet communication of oxidation dissolution centrifuge 6,
Aoxidize 6 liquid outlet of dissolution centrifuge and the inlet communication of water receiving tank 7.
Washing system includes slag receiving trough 8, washing centrifuge 10 and de- chromium filter residue storage tank 12, the water inlet and chlorine of slag receiving trough 8
The hot water outlet connection of the electrolysis heat exchanger 9 of sour sodium production system, the outlet and the import of washing centrifuge 10 of slag receiving trough 8 connect
Logical, the flushing water inlet of washing centrifuge 10 is connected with flushing water pipeline 11, washs the slag notch of centrifuge 10 and de- chromium filter residue
The inlet communication of storage tank 12.
Also original system includes reduction reaction can 13, reducing agent storage tank 14, reduction centrifuge 15 and chromium hydroxide storage tank 16, also
Former retort 13 is connected with reducing agent storage tank 14 by pipeline, is set on the pipeline between reduction reaction can 13 and reducing agent storage tank 14
There are reduction control valve, the outlet of reduction reaction can 13 and the inlet communication of reduction centrifuge 15, reduce the slag notch of centrifuge 15
With the inlet communication of chromium hydroxide storage tank 16.
The course of work：
(1) waste brine sludge is ground：Waste brine sludge is delivered to grinder 1 to grind, obtains abrasive；The purpose of grinding is by abraum salt
The chromium ion wrapped up in mud fully discharges, to improve subsequent oxidation, dissolution, the efficiency reduced.
(2) aoxidize：(1) after the completion of waste brine sludge grinding, abrasive is delivered in oxidation dissolution retort 2, passes through water supply
Pipeline 5 after mixing, oxygen is added by oxidant storage tank 3 to oxidation dissolution retort 2 plus water to oxidation dissolution retort 2
Agent, carries out oxidation reaction, after oxidation reaction, obtains oxidation slurry；The effect of oxidation is that trivalent chromic ion is passed through oxygen
Agent is oxidized to hexavalent chromium, carries out oxidation reaction in pressurized conditions, can promote the progress of oxidation reaction, make oxidation reaction
The more thorough and efficiency higher carried out.
(3) chromium ion dissolution：(2) after the completion of aoxidizing, hexavalent chromium is added into oxidation slurry by dissolution agent storage tank 4
Dissolution agent, is stirred, and after stirring, material is delivered to oxidation dissolution centrifuge 6 and carries out separation of solid and liquid, obtain filter residue and
Filtrate；The purpose of dissolution is the hexavalent chromium dissolution in order to aoxidize in slurry, and raising carries out dissolution under an increased pressure, can
To improve the dissolution rate of hexavalent chromium, and then improve the rate of recovery of chromium ion and the de- chromium rate of waste brine sludge.
(4) wash：(3) after the completion of chromium ion dissolution, filter residue is delivered to slag receiving trough 8, passes through sodium chlorate production system
Electrolysis heat exchanger 9 adds washings into slag receiving trough 8, after mixing, is washed, and washing times are 2 times, and washing terminates
Afterwards, material is delivered to washing centrifuge 10 and carries out separation of solid and liquid, obtains washing filtrate and de- chromium filter residue；The purpose of washing is by six
Valency chromium ion is fully removed from the filter residue after dissolution processing, to carry out next step reduction treatment；Washing washings used
The hot water produced from the electrolysis heat exchanger 9 of sodium chlorate production system, without heating in washing to washings,
System energy consumption and water consume are reduced, processing cost is relatively low；In being washed in (4), the de- chromium filter residue obtained after separation of solid and liquid is carried out
Environmental-protection comprehensive utilizes the detection of standard (HJ/T301-2007), if Environmental-protection comprehensive utilizes standard (HJ/T301-2007) testing result
It is unqualified, flushing water is passed through into washing centrifuge 10 by flushing water pipeline 11, flushing water is rinsed de- chromium filter residue, directly
Testing result qualification of the Environmental-protection comprehensive using standard is carried out to de- chromium filter residue, chromium filter residue is taken off afterwards and is delivered to de- chromium filter residue storage tank 12
Storage；The purpose being detected to taking off chromium filter residue is to ensure that in de- chromium filter residue that hexavalent chromium content will no more than national standard
Ask, such de- chromium filter residue just meets the requirement of recycling, it can be used for production coating, refractory material etc., will not cause
Secondary pollution；Flushing water after flushing is back in oxidation dissolution retort 2, is used to prepare oxidation slurry, reduces oxidation reaction
Water consumption, has saved water resource.
(5) reduce：(4) after the completion of washing, washed what is obtained in the filtrate obtained in (3) chromium ion dissolution and (4) washing
Wash filtrate and be delivered to water receiving tank 7 and mix, obtain mixed liquor, mixed liquor is delivered to reduction reaction can 13, passes through reducing agent storage tank
14 add reducing agent into reduction reaction can 13, after mixing, carry out reduction reaction, after reduction reaction, pass through reduction
Centrifuge 15 carries out separation of solid and liquid, obtains chromium hydroxide precipitation and treats effluent, and chromium hydroxide is delivered in chromium hydroxide storage and stores up
Deposit, treat that effluent is delivered in wastewater regulation tank 17；The purpose of reduction is the filtrate and (4) that will be obtained in (3) chromium ion dissolution
Hexavalent chromium in the washing filtrate obtained in washing is reduced to chromium hydroxide by reducing agent, and chromium hydroxide may be recovered
And sell outside, make the operation of manufacturing enterprise there is diversity, add the income of manufacturing enterprise.(5) in reducing, effluent is treated in adjustment
PH value, and to treating that effluent is detected by CJ3082-1999 after adjustment pH value, waste plant is delivered to after detection is qualified
Water pipeline 18.Treat that effluent is directly delivered to waste plant come water pipeline 18 by waste plant and handles, rather than back to sodium chlorate
In production system, wastewater treatment process on the one hand can be saved, saves cost for wastewater treatment；On the other hand, perchlorate is avoided
Ion and metal ion are returned in sodium chlorate production system therewith, cause system equipment to damage, and reduce the generation of security incident.
Embodiment 2：
Operated with the system of embodiment 1 as test group, control group in addition to grinder 1 is not provided with, other equipment and
Operating method and test group all same, test group and de- chromium filter residue obtained by control group are soaked by national standard (HJ/T299-2007)
Go out toxotest, wherein, reduction and detoxication rate accounts for untreated for the total chrome content in the leachate of the de- chromium filter residue of gained after processing
The ratio of total chrome content in preceding waste brine sludge, the results are shown in Table 1.
1 test group of table carries out Leaching test result with de- chromium filter residue obtained by control group by national standard (HJ/T299-2007)
As shown in Table 1, the waste brine sludge after milled processed is handled through peroxidating, dissolution, washing and reduction etc. again, it is de-
Chromium filter residue is tested through Leaching, Cr in its leachate6+Content is 0mg/L, leachate total chrome content 1.9mg/L, reaches environmental protection
Comprehensive utilization standard (HJ/T301-2007), reduction and detoxication rate are 99.98%, and the chromium content of the waste brine sludge after processing is far below state
Family's standard, meets state environmental emissioning standard；I.e. broken by grinding, the chromium ion that can make to wrap up in waste brine sludge is released, then
By carrying out the processing such as oxidizing, solution, washing and reduction to waste brine sludge, chromium ion is removed from waste brine sludge, solve abraum salt
Chromium ion intractability is big in mud, removes halfway problem.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on, should be included in the utility model
Protection domain within.
Claims (4)
1. the processing system of waste brine sludge in production of sodium chlorate, it is characterised in that it includes grinder, oxidation digestion series, washing
System, go back original system and wastewater regulation tank, and the discharge port of the grinder and the oxidation dissolution of the oxidation digestion series are reacted
The feed inlet connection of tank, the outlet and the import of the reduction reaction can for going back original system of the water receiving tank of the oxidation digestion series
Connection, the liquid outlet of the reduction centrifuge for going back original system are connected with the water inlet of the wastewater regulation tank, the waste water tune
The outlet of section groove carrys out water pipeline with waste plant and connect, the slag notch for aoxidizing dissolution centrifuge for aoxidizing digestion series with it is described
The feed inlet connection of the slag receiving trough of washing system, the outlet of the slag receiving trough and the inlet communication of washing centrifuge, the washing
The water outlet of centrifuge is connected by import of the triple valve respectively with the water inlet, the water receiving tank of the oxidation dissolution retort
It is logical.
2. the processing system of waste brine sludge in production of sodium chlorate according to claim 1, it is characterised in that the oxidation dissolution
System includes the oxidation dissolution retort, oxidant storage tank, dissolution agent storage tank, water supply line, the oxidation dissolution centrifuge
With the water receiving tank, the oxidation dissolution retort is supercharging agitator tank, the water inlet of the oxidation dissolution retort with it is described
Water supply line connects, and the oxidation dissolution retort is connected with the oxidant storage tank, the dissolution agent storage tank by pipeline respectively
It is logical, the outlet of the oxidation dissolution retort and the inlet communication of the oxidation dissolution centrifuge, the oxidation dissolution centrifuge
Liquid outlet and the inlet communication of the water receiving tank.
3. the processing system of waste brine sludge in production of sodium chlorate according to claim 1, it is characterised in that the washing system
Including the slag receiving trough, the washing centrifuge and de- chromium filter residue storage tank, water inlet and the production of sodium chlorate system of the slag receiving trough
The hot water outlet connection of the electrolysis heat exchanger of system, the outlet of the slag receiving trough and the inlet communication of the washing centrifuge, it is described
The flushing water inlet of washing centrifuge is connected with flushing water pipeline, and slag notch and the de- chromium filter residue of the washing centrifuge store up
The inlet communication of tank.
4. the processing system of waste brine sludge in production of sodium chlorate according to claim 1, it is characterised in that described to go back original system
Including the reduction reaction can, reducing agent storage tank, the reduction centrifuge and chromium hydroxide storage tank, the reduction reaction can and institute
State reducing agent storage tank to connect by pipeline, the outlet of the reduction reaction can and the inlet communication of the reduction centrifuge are described
Reduce the slag notch of centrifuge and the inlet communication of the chromium hydroxide storage tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721101828.1U CN207238736U (en) | 2017-08-30 | 2017-08-30 | The processing system of waste brine sludge in production of sodium chlorate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721101828.1U CN207238736U (en) | 2017-08-30 | 2017-08-30 | The processing system of waste brine sludge in production of sodium chlorate |
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ID=61883744
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107583934A (en) * | 2017-08-30 | 2018-01-16 | 内蒙古兰太实业股份有限公司 | The handling process and system of waste brine sludge in production of sodium chlorate |
| CN110237481A (en) * | 2018-07-10 | 2019-09-17 | 华东理工大学 | A kind of abraum salt method for innocent treatment |
| CN112429896A (en) * | 2020-10-29 | 2021-03-02 | 河南佰利联新材料有限公司 | Treatment method of salt mud produced in chlor-alkali production |
-
2017
- 2017-08-30 CN CN201721101828.1U patent/CN207238736U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107583934A (en) * | 2017-08-30 | 2018-01-16 | 内蒙古兰太实业股份有限公司 | The handling process and system of waste brine sludge in production of sodium chlorate |
| CN107583934B (en) * | 2017-08-30 | 2021-01-15 | 内蒙古兰太实业股份有限公司 | Treatment process of waste salt mud in sodium chlorate production |
| CN110237481A (en) * | 2018-07-10 | 2019-09-17 | 华东理工大学 | A kind of abraum salt method for innocent treatment |
| CN112429896A (en) * | 2020-10-29 | 2021-03-02 | 河南佰利联新材料有限公司 | Treatment method of salt mud produced in chlor-alkali production |
| CN112429896B (en) * | 2020-10-29 | 2022-10-25 | 河南佰利联新材料有限公司 | Treatment method of salt mud produced in chlor-alkali production |
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Address after: 750336 Helan District, Alashan Economic Development Zone, Alashan League, Inner Mongolia Autonomous Region Patentee after: China Salt Inner Mongolia Chemical Co.,Ltd. Address before: 750306 Helan District, Alashan Economic Development Zone, Alashan League, Inner Mongolia Autonomous Region Patentee before: INNER MONGOLIA LANTAI INDUSTRIAL Co.,Ltd. |
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Effective date of registration: 20221201 Address after: 750336 south of Ulanbuhe street, Alxa Economic Development Zone, Alxa League, Inner Mongolia Autonomous Region (WuSitai town) Patentee after: INNER MONGOLIA LANTAI SODIUM INDUSTRY Co.,Ltd. Patentee after: China Salt Inner Mongolia Chemical Co.,Ltd. Address before: 750336 Helan District, Alashan Economic Development Zone, Alashan League, Inner Mongolia Autonomous Region Patentee before: China Salt Inner Mongolia Chemical Co.,Ltd. |
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Address after: 750336 south of Ulanbuhe street, Alxa Economic Development Zone, Alxa League, Inner Mongolia Autonomous Region (WuSitai town) Patentee after: China Salt Inner Mongolia Chemical sodium Industry Co.,Ltd. Patentee after: China Salt Inner Mongolia Chemical Co.,Ltd. Address before: 750336 south of Ulanbuhe street, Alxa Economic Development Zone, Alxa League, Inner Mongolia Autonomous Region (WuSitai town) Patentee before: INNER MONGOLIA LANTAI SODIUM INDUSTRY Co.,Ltd. Patentee before: China Salt Inner Mongolia Chemical Co.,Ltd. |
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