CN106277268A - A kind of processing method containing bivalent nickel ion waste water - Google Patents
A kind of processing method containing bivalent nickel ion waste water Download PDFInfo
- Publication number
- CN106277268A CN106277268A CN201610742295.9A CN201610742295A CN106277268A CN 106277268 A CN106277268 A CN 106277268A CN 201610742295 A CN201610742295 A CN 201610742295A CN 106277268 A CN106277268 A CN 106277268A
- Authority
- CN
- China
- Prior art keywords
- waste water
- nickel ion
- bivalent nickel
- aqueous phase
- preparation
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a kind of processing method containing bivalent nickel ion waste water.Said method comprising the steps of: 1) pending nickel-containing waste water is squeezed in reactor, with inorganic base, PH is transferred to 8 11；(2) squeezing in still by organic solvent, lower addition 2, the 2 ' thiobis of stirring, to tert-octylphenol, is heated to 70 80 DEG C, and stirring, lower floor's aqueous phase is the discharged water handled well；(3) repeat above two step, when the green to aqueous phase is not taken off, organic facies is added 1 n-butylamine, synthesize light stabilizer UV 1084 product.In the waste water that the present invention processed, nickel ion residual quantity meets discharge standard, and the nickel ion through absorbing can make efficiency light stabilizer UV 1084, non-secondary pollution, high financial profit further with extractant；Simple to operate, it is not required to special equipment.
Description
Technical field
The present invention relates to a kind of processing method containing bivalent nickel ion waste water, reclaim light stabilizer UV-particularly to one
1084 produce the method for bivalent nickel ion in waste water.
Background technology
UV absorbent UV-1084, Chinese entitled 2,2-thiobis (4-tert-octyl phenol) n-butylamine nickel salt；(1-fourth
Amine) [[2,2-(sulfur-KS) two [4-(1,1,3,3 ,-tetramethyl butyl) phenol root conjunction-KO]] (2-)] nickel.Light stabilizer UV-
1084 are widely used in polyethylene film, flat filament, or the product of rubber and plastic such as polypropylene film, flat filament, good with the polyolefinic compatibility；
Application stable on polyethylene agricultural film and polyacrylic canopy film；Resistance to pesticide and acidity, have wide city in world wide
?.But the waste water containing bivalent nickel ion can be produced in process of production, pollute environment, waste resource.
Current light stabilizer UV-1084 needs to use bivalent nickel ion solution in the preparation, and when feeding intake, according to each former
The mol ratio of material, need to keep bivalent nickel ion the most excessive, causes in last waste water containing substantial amounts of bivalent nickel ion.
Current industrial conventional chemical method processes nickel ion in waste water and processes, and specially adds alkali, is precipitated by nickel,
Then collecting solid waste to focus on, the most useful nonionic adsorption resin is adsorbed, and is resolved to acid after full conjunction again
For sour water.But generally to add substantial amounts of chemical agent due to chemical method, and become sedimentary form and be precipitated out.This is the most certainly
Substantial amounts of secondary pollution can be there is after having determined chemical Treatment；And it is typically necessary specific equipment to process.
Summary of the invention
Present invention aim to address above-mentioned technical problem, it is provided that a kind of processing method containing bivalent nickel ion waste water, institute
The method of stating can fully remove bivalent nickel ion, and utilizes the bivalent nickel ion in waste water to produce UV-1084 product.
The object of the present invention is achieved like this:
A kind of processing method containing bivalent nickel ion waste water, comprises the steps:
(1) collect the waste water containing bivalent nickel ion, with inorganic base, pH value of waste water is adjusted to 8 11；
(2) adding concentration is 0.01-1kg/L the 2 of excess in adding in above-mentioned waste water, 2 '-thiobis is to Te Xinji
Phenol solution, is heated to 40-82 DEG C, stirs 15-60 minute, stratification, is released by the colourless lower floor aqueous phase obtained；
(3) repeat step 1 and 2, observe the color of aqueous phase after standing, to colourless lower layer of water phase time can not be obtained, i.e. divide
When aqueous phase after Ceng presents green, discharge aqueous phase, treat process next time；
(4) in organic facies, add 1-n-butylamine, calculate simultaneously and keep the bivalent nickel ion mol ratio amount of skipping over, be heated to 75
DEG C, it is incubated 2 hours, obtains UV-1084 product.
The above-mentioned processing method containing bivalent nickel ion waste water, the described waste water containing bivalent nickel ion is for producing light stabilizer
The waste water that UV-1084 produces.
The above-mentioned processing method containing bivalent nickel ion waste water, described inorganic base is sodium carbonate, potassium carbonate, sodium hydroxide, hydrogen
One or more in potassium oxide.
The above-mentioned processing method containing bivalent nickel ion waste water, described 2,2 '-thiobis is used in tert-octylphenol solution
Solvent be in the aromatic hydrocarbon solvent of low polarity.
The above-mentioned processing method containing bivalent nickel ion waste water, described aromatic hydrocarbon solvent is chloroform, carbon dichloride, benzene, first
One or more in benzene, dimethylbenzene, petroleum ether.
The above-mentioned processing method containing bivalent nickel ion waste water, described 2, tert-octylphenol solution concentration is by 2 '-thiobis
0.3-0.5kg/L.
A kind of preferred version, described addition 2,2 '-thiobis is 70-80 DEG C to the heating-up temperature after tert-octylphenol, stirs
Mix the time 20-30 minute.
The above-mentioned processing method containing bivalent nickel ion waste water, described organic facies is 1:1-0.5 with the volume ratio of aqueous phase.
The above-mentioned processing method containing bivalent nickel ion waste water, described organic facies is 1:1-0.9 with the volume ratio of aqueous phase.
Beneficial effect:
Compared with prior art, present invention have the advantage that
The present invention provides the processing method containing bivalent nickel ion waste water, in order to process generation in UV-1084 production process
Bivalent nickel ion in waste water, chooses 2, and tert-octylphenol as the absorption reagent of bivalent nickel ion, is effectively divided by 2 '-thiobis
Bivalent nickel ion in waste water, utilizes the bivalent nickel ion after separating to produce UV-1084 product simultaneously, and described method can be filled
Divide the bivalent nickel ion removed in waste water, it is possible to industrialized production, solve an existing process difficult problem containing bivalent nickel ion waste water,
And make full use of bivalent nickel ion in waste water and produce the product made new advances, the problem that there is not secondary pollution, it is achieved low emission is right
Environmental friendliness, economic benefit highlights.
The present invention produces the processing method of bivalent nickel ion in waste water, the concentration to bivalent nickel ion pending in waste water
Substantially nickel-free ion residues in waste water after no requirement (NR), and process, handled waste water entirely reaches discharging standards.
The processing method of bivalent nickel ion of the present invention, need not form precipitation, is directly processed bivalent nickel ion utilizing,
Decrease operation, simple to operate, it is not required to special installation, environmentally friendly.
The preparation method of the present invention is the most special to the addition of tert-octylphenol solution and waste liquid to 2,2 '-thiobis
Limit, mainly observe by the naked eye the color of aqueous phase to judge the result of bivalent nickel ion, simple, directly.
Described method is also applied to other and processes containing bivalent nickel ion waste water；
Described method is equally applicable in the waste water containing bivalent nickel ion and other ions, removes other ions through resolving
After, to the process containing bivalent nickel ion waste water.
Using this method to process the waste water Han bivalent nickel ion, process is simple, only needs simple reactor to complete, investment
Few, the waste water after process is determined nickel method through standard and is measured, and reaches discharging standards.
Detailed description of the invention
Below in conjunction with instantiation, the invention will be further described:
Embodiment 1
Bivalent nickel ion waste water 900L will be contained and squeeze in 3 tons of reactors, and adjust PH to be transferred to 11 with sodium hydroxide solution；By 850L
Toluene is squeezed into, and lower addition 2, the 2 '-thiobis of stirring, to tert-octylphenol 432kg, heats to 65 DEG C, stirs 20 minutes, stop
Only heating stands 10 minutes, and 900L that point sub-cloud is handled well is colourless discharges water, adds 900L waste water Han bivalent nickel ion,
Addition and the sodium hydroxide solution of equivalent for the first time, be heated to 70 DEG C, stir 20 minutes, stop heating, stand 20 minutes, divide and go
900L that lower floor handles well is colourless discharges water.So circulation, until the water added no longer takes off for colourless, puts it in bucket and treats
Next time processes, and is heated to reflux 2 hours by the 1-n-butylamine adding molar equivalent, is light stabilizer UV-1084 in organic facies, unit
Element is analyzed and is measured content ＞ 98%.
Embodiment 2
Bivalent nickel ion waste water 900L will be contained and squeeze in 3 tons of reactors, and adjust PH to be transferred to 10.5 with sodium hydroxide solution；Will
850L toluene is squeezed into, and lower addition 2, the 2 '-thiobis of stirring, to tert-octylphenol 432kg, heats to 65 DEG C, stirs 20 points
Clock, stops heating and stands 10 minutes, and 900L that point sub-cloud is handled well is colourless discharges water, adds 900L containing bivalent nickel ion
Waste water, adds and the sodium hydroxide solution of equivalent for the first time, is heated to 70 DEG C, stirs 20 minutes, stop heating, stand 20 points
Clock, 900L that point sub-cloud is handled well is colourless discharges water.So circulation, until the water added no longer takes off for colourless, is put
Enter bucket is treated process next time, the n-butylamine adding molar equivalent is heated to reflux 2 hours, is light stabilizer UV-in organic facies
1084, determination of elemental analysis content ＞ 98%.
Embodiment 3
Bivalent nickel ion waste water 900L will be contained and squeeze in 3 tons of reactors, and adjust PH to be transferred to 11 with sodium carbonate liquor；By 850L first
Benzene is squeezed into, and lower addition 2, the 2 '-thiobis of stirring, to tert-octylphenol 432kg, heats to 65 DEG C, stirs 20 minutes, stop
Heating stands 10 minutes, and 900L that point sub-cloud is handled well is colourless discharges water, adds 900L waste water Han bivalent nickel ion, adds
Enter and the sodium carbonate sodium solution of equivalent for the first time, be heated to 70 DEG C, stir 20 minutes, stop heating, stand 20 minutes, divide and go down
The 900L that handles well of layer is colourless discharges water.So circulation, until the water added no longer takes off for colourless, puts it in bucket and treats down
Secondary process, is heated to reflux the n-butylamine adding molar equivalent in organic facies 2 hours, is light stabilizer UV-1084, and element divides
Analysis measures content ＞ 98%.
Embodiment 4
Bivalent nickel ion waste water 900L will be contained and squeeze in 3 tons of reactors, and adjust PH to be transferred to 11 with sodium hydroxide solution；By 850L
Petroleum ether is squeezed into, and lower addition 2, the 2 '-thiobis of stirring, to tert-octylphenol 432kg, heats to 65 DEG C, stirs 20 minutes,
Stopping heating and stand 10 minutes, 900L that point sub-cloud is handled well is colourless discharges water, adds 900L and gives up containing bivalent nickel ion
Water, adds and the sodium hydroxide solution of equivalent for the first time, is heated to 70 DEG C, stirs 20 minutes, stop heating, stand 20 minutes,
900L that point sub-cloud is handled well is colourless discharges water.So circulation, until the water added no longer takes off for colourless, puts it into bucket
In treat next time process, the n-butylamine adding molar equivalent in organic facies is heated to reflux 2 hours, is light stabilizer UV-1084,
Determination of elemental analysis content ＞ 98%.
Embodiment 5
Bivalent nickel ion waste water 900L will be contained and squeeze in 3 tons of reactors, and adjust PH to be transferred to 11 with sodium hydroxide solution；By 850L
Toluene is squeezed into, and lower addition 2, the 2 '-thiobis of stirring, to tert-octylphenol 255kg, heats to 65 DEG C, stirs 20 minutes, stop
Only heating stands 10 minutes, and 900L that point sub-cloud is handled well is colourless discharges water, adds 900L waste water Han bivalent nickel ion,
Addition and the sodium hydroxide solution of equivalent for the first time, be heated to 70 DEG C, stir 20 minutes, stop heating, stand 20 minutes, divide and go
900L that lower floor handles well is colourless discharges water.So circulation, until the water added no longer takes off for colourless, puts it in bucket and treats
Next time processes, and is heated to reflux by the n-butylamine adding molar equivalent 2 hours, is light stabilizer UV-1084, element in organic facies
Analyze and measure content ＞ 98%.
Embodiment 6
Bivalent nickel ion waste water 900L will be contained and squeeze in 3 tons of reactors, and adjust PH to be transferred to 11 with sodium hydroxide solution；By 850L
Toluene is squeezed into, and lower addition 2, the 2 '-thiobis of stirring, to tert-octylphenol 432kg, heats to 65 DEG C, stirs 20 minutes, stop
Only heating stands 10 minutes, and 900L that point sub-cloud is handled well is colourless discharges water, adds 900L waste water Han bivalent nickel ion,
Addition and the sodium hydroxide solution of equivalent for the first time, be heated to 80 DEG C, stir 20 minutes, stop heating, stand 20 minutes, divide and go
900L that lower floor handles well is colourless discharges water.So circulation, until the water added no longer takes off for colourless, puts it in bucket and treats
Next time processes, and is heated to reflux by the n-butylamine adding molar equivalent 2 hours, is light stabilizer UV-1084, element in organic facies
Analyze and measure content ＞ 98%.
Embodiment 7
Bivalent nickel ion waste water 700L will be contained and squeeze in 3 tons of reactors, and adjust PH to be transferred to 11 with sodium hydroxide solution；Will
1000L toluene is squeezed into, and lower addition 2, the 2 '-thiobis of stirring, to tert-octylphenol 432kg, heats to 65 DEG C, stirs 20 points
Clock, stops heating and stands 10 minutes, and 700L that point sub-cloud is handled well is colourless discharges water, adds 700L containing bivalent nickel ion
Waste water, adds and the sodium hydroxide solution of equivalent for the first time, is heated to 80 DEG C, stirs 20 minutes, stop heating, stand 20 points
Clock, 700L that point sub-cloud is handled well is colourless discharges water.So circulation, until the water added no longer takes off for colourless, is put
Enter bucket is treated process next time, the n-butylamine adding molar equivalent is heated to reflux 2 hours, is light stabilizer UV-in organic facies
1084, determination of elemental analysis content ＞ 98%.
Claims (9)
1. the processing method containing bivalent nickel ion waste water, it is characterised in that comprise the steps:
(1) collect the waste water containing bivalent nickel ion, with inorganic base, pH value of waste water is adjusted to 8 11；
(2) adding concentration is 0.01-1kg/L the 2 of excess in adding in above-mentioned waste water, 2 '-thiobis is to tert-octylphenol
Solution, is heated to 40-82 DEG C, stirs 15-60 minute, stratification, is released by the colourless lower floor aqueous phase obtained；
(3) repeat step 1 and 2, observe the color of aqueous phase after standing, to not obtaining colourless lower layer of water phase time, i.e. after layering
Aqueous phase when presenting green, discharge aqueous phase, treat process next time；
(4) in organic facies, add 1-n-butylamine, calculate simultaneously and keep the bivalent nickel ion mol ratio amount of skipping over, be heated to 75 DEG C,
It is incubated 2 hours, obtains 1084 products.
Processing method containing bivalent nickel ion waste water the most according to claim 1, it is characterised in that described containing nickelous from
The waste water of son is to produce the waste water that light stabilizer UV-1084 produces.
Preparation method the most according to claim 1 and 2, it is characterised in that described inorganic base is sodium carbonate, potassium carbonate, hydrogen
One or more in sodium oxide, potassium hydroxide.
Preparation method the most according to claim 3, it is characterised in that described 2,2 '-thiobis is to tert-octylphenol solution
In the solvent used be in the aromatic hydrocarbon solvent of low polarity.
Preparation method the most according to claim 4, it is characterised in that described aromatic hydrocarbon solvent be chloroform, carbon dichloride,
One or more in benzene,toluene,xylene, petroleum ether.
Preparation method the most according to claim 5, it is characterised in that described 2,2 '-thiobis is to tert-octylphenol solution
Concentration is 0.3-0.5kg/L.
Preparation method the most according to claim 1, it is characterised in that described in enter 2, after 2 '-thiobis is to tert-octylphenol
Heating-up temperature is 70-80 DEG C, mixing time 20-30 minute.
Preparation method the most according to claim 1, it is characterised in that organic facies is 1:1-0.5 with the volume ratio of aqueous phase.
Preparation method the most according to claim 1, it is characterised in that organic facies is 1:1-0.9 with the volume ratio of aqueous phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742295.9A CN106277268B (en) | 2016-08-28 | 2016-08-28 | A kind of processing method of the waste water containing bivalent nickel ion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742295.9A CN106277268B (en) | 2016-08-28 | 2016-08-28 | A kind of processing method of the waste water containing bivalent nickel ion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106277268A true CN106277268A (en) | 2017-01-04 |
| CN106277268B CN106277268B (en) | 2019-11-12 |
Family
ID=57676421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610742295.9A Active CN106277268B (en) | 2016-08-28 | 2016-08-28 | A kind of processing method of the waste water containing bivalent nickel ion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106277268B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409800A (en) * | 2018-03-07 | 2018-08-17 | 保定市乐凯化学有限公司 | The preparation method of 2,2 '-thiobis (4- tert-octyl phenols) n-butylamine nickel |
| CN108623640A (en) * | 2018-07-03 | 2018-10-09 | 保定市乐凯化学有限公司 | The preparation method of 2,2 '-thiobis (4- tert-octyl phenols) n-butylamine nickel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA781543A (en) * | 1968-03-26 | P. Cipriani Louis | Monolefine, titanium dioxide nickelamine complex stabilized composition |
-
2016
- 2016-08-28 CN CN201610742295.9A patent/CN106277268B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA781543A (en) * | 1968-03-26 | P. Cipriani Louis | Monolefine, titanium dioxide nickelamine complex stabilized composition |
Non-Patent Citations (1)
| Title |
|---|
| 王凯: "光稳定剂UV-1084的合成及中间体2，2’-硫代双对叔辛基苯酚的萃取性能研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑（月刊）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409800A (en) * | 2018-03-07 | 2018-08-17 | 保定市乐凯化学有限公司 | The preparation method of 2,2 '-thiobis (4- tert-octyl phenols) n-butylamine nickel |
| CN108623640A (en) * | 2018-07-03 | 2018-10-09 | 保定市乐凯化学有限公司 | The preparation method of 2,2 '-thiobis (4- tert-octyl phenols) n-butylamine nickel |
| CN108623640B (en) * | 2018-07-03 | 2021-03-02 | 乐凯化学材料有限公司 | Preparation method of 2, 2' -thiobis (4-tert-octylphenol) n-butylamine nickel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106277268B (en) | 2019-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105198048B (en) | A kind of three-diemsnional electrode filler and preparation method thereof | |
| CN101508477B (en) | Electrochemical oxidation processing method for wastewater containing anthraquinone dye | |
| CN102580689B (en) | Anionic dye adsorbent as well as preparation method and application thereof | |
| CN106277268A (en) | A kind of processing method containing bivalent nickel ion waste water | |
| CN104629068A (en) | Solution grafting preparation method of PVDF cation exchange membrane | |
| CN104437676A (en) | New sulfonic acid type strong-acidity cation exchange resin and preparation method thereof | |
| CN110129561A (en) | A method of using fluorine in modified bentonite adsorbent removal lepidolite ore neutrality leachate | |
| Ning et al. | Accelerated desulphurization of waste lead battery paste in a high-gravity rotating packed bed | |
| CN109485129A (en) | A kind of method of the porous carbon materials Electro Sorb metal ion of PVC waste plastic preparation | |
| CN106365189B (en) | A kind of method of comprehensive utilization of white residue soil | |
| CN104815617A (en) | Preparing method of ephedra amination waste biosorbent | |
| CN105295088B (en) | A kind of method of the efficient dehalogenation of waste plastic | |
| CN106748800B (en) | A kind of preparation method of N, N- dimethyl benzylamine | |
| CN104649391B (en) | A kind of method utilizing fluorine-containing spent acid to prepare polymeric aluminum | |
| CN103979578B (en) | A kind of novel process preparing Sodium Thiocyanate 99 | |
| CN105037591B (en) | A kind of strong-basicity styrene series anion exchange resin and preparation method thereof | |
| CN103979755A (en) | Comprehensive treatment method of electro-plating sludge and sludge containing low amount of copper | |
| CN106178943A (en) | A kind of inorganic agent removing sulfide in coked waste water Volatile Gas and processing method thereof | |
| Zhu et al. | Determination of NaCl and Na2SO4 equilibrium solubility in cyclohexanol and cyclohexanone aqueous solutions at 323.15 K | |
| CN109231379A (en) | A method of for selective recovery object ion in organic wastewater | |
| CN1070164C (en) | Pinene esterifying and saponifying process synthesizing borneol and composite boron-titanium based catalyst | |
| CN105906523B (en) | The synthetic method of one bulb dysentery spirit | |
| CN105524276A (en) | Imidazole quaternary ammonium salt cationic flocculant and preparation method thereof | |
| CN106044723B (en) | The method for removing free chlorine in the Waste Sulfuric Acid that dry chlorine process generates | |
| CN104324705B (en) | A kind of preparation facilities of the carbodithioic acid modifying and decorating resin for heavy metal adsorption |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211213 Address after: 061100 East District, Lingang Economic and Technological Development Zone, Cangzhou City, Hebei Province Patentee after: Lucky chemical materials Co.,Ltd. Address before: 071054, 6 Kennan Avenue, Baoding, Hebei Patentee before: BAODING LUCKY CHEMICAL Co.,Ltd. |
|
| TR01 | Transfer of patent right |