CN101624204B - Four-great circulation method formed by waste gypsum mud and chlor-alkali industry - Google Patents
Four-great circulation method formed by waste gypsum mud and chlor-alkali industry Download PDFInfo
- Publication number
- CN101624204B CN101624204B CN2009100365796A CN200910036579A CN101624204B CN 101624204 B CN101624204 B CN 101624204B CN 2009100365796 A CN2009100365796 A CN 2009100365796A CN 200910036579 A CN200910036579 A CN 200910036579A CN 101624204 B CN101624204 B CN 101624204B
- Authority
- CN
- China
- Prior art keywords
- workshop
- sodium
- terminal
- chlor
- sulfate
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a method for forming four circulation reactions in the waste gypsum mud and chlor-alkali industry, which mainly comprises: after pretreating the waste gypsum mud, reacting with hydrochloric acid, filtering to obtain a blended solution of calcium chloride and sulfuric acid and a filter cake; reacting filtrate liquor with sodium sulfate to generate a pure white gypsum sediment and sodium chloride, filtering to obtain a calcium chloride solution and a pure gypsum filter cake; distilling the filtrate liquor shallowly to obtain a sodium chloride crystal and a sulfuric acid solution; returning the sodium chloride to an electrolytic plant to be recycled; slightly concentrating the sulfuric acid solution and returning to an acid leaching plant to be recycled; continuously reacting the gypsum filter cake with sodium hydroxide to generate pure calcium hydroxide and a sodium sulfate solution which is returned and recycled; and chloridizing, separating, drying and grinding the pure calcium hydroxide to prepare fine bleaching powder finished products. The invention uses chemical reaction principle to treat waste gas, waste water and industrial residue and makes waste profitable. The system not only reduces the cost of the disposition of waste acid, but also utilizes the four circulations to create considerable economic value, which is a good example of multipurpose use of the three wastes.
Description
Technical field:
The present invention relates to three industrial wastes comprehensive utilization technique field, particularly produce the method for the four systemic circulations reaction that forms with titanium powder plant waste gypsum mud and chlorine industry.
Technical background:
Current, the sulfur waste acid treatment method of sulfuric acid method titanium pigment factory is multifarious, is but more to utilize the improvement that neutralizes of carbide slag and limestone powder.So a large amount of waste gypsum muds just roll in, and pile up like a mountain soon.Present accumulating amount has allowed enterprise bear, and buries in can only face the mountain outward ditch or the heatable adobe sleeping platform.Going down so is not a way after all, does not say that except polluting also will occupy a large amount of land areas, it is unfavorable to the people so neither to benefit the nation yet.
Enterprise gives the cement mill gypsum mud in the hope of being turned waste into wealth, and still, because the impurity level of gypsum mud is too high, so that influenced the quality product in cement mill, unique hope has been broken again.Gypsum mud is handled in the present invention and utilization has reached very ideal boundary, has not only removed the pollution of waste gypsum mud completely, and, also turn waste into wealth and create very considerable economic value.Also inter-tradely docking successfully with the basic material of chlorine industry, formed the optimum four-great circulation system of material, also can be called the four systemic circulation principles that chemical spent material utilizes, is the model and the model of multipurpose use of three types of wastes technology.
Summary of the invention:
The purpose of this invention is to provide a kind of formed waste gypsum mud of carbide slag neutralizing treatment sulfur waste acid, formed the technical scheme of the method for four systemic circulations reactions again with chlor-alkali industry with titanium powder plant usefulness polyvinyl chloride factory.When effectively having overcome, eliminated secondary pollution basically and reached zero release, also solved the problem of taking up an area of because of accumulation because of a large amount of expense of handling that waste gypsum mud takes place.Improved economic benefit greatly for enterprise by the recycle of waste material, and first titanium dioxide industry and polyvinyl chloride industry and chlorine industry have been formed the method for the four systemic circulations reaction of material by the scrap loop utilization, can be described as the four systemic circulation principles that chemical spent material utilizes.
For reaching above-mentioned purpose, therefore technical scheme of the present invention is:
Circulation one: chlorine industry potroom electrolytic sodium chloride is sodium-chlor terminal workshop (1); Sodium hydroxide is in sodium hydroxide workshop (2) refining output after the electrolysis; Refining chlorine is in chlorine workshop (3) output after the electrolysis; The waste gypsum mud that polyvinyl chloride factory carbide slag is neutralized into titanium powder plant is crossed a series of chemical reaction at workshop, sodium-chlor top (4) back warp, and finally to generate sodium-chlor be top, and sodium-chlor returns sodium-chlor terminal workshop (1) circulation, so forms material one systemic circulation;
Circulation two: it is terminal that titanium powder plant acidleach terminal workshop (5) vitriol oil soaks ilmenite; Titanyl sulfate extracts in titanyl sulfate workshop (6) after the acidleach; Extracting the back ferrous sulfate separates out in ferrous sulfate workshop (7); Useless vitriolic is discharged and is neutralized into gypsum mud and crosses a series of chemical reaction at workshop, acidleach top (8) back warp finally to generate the vitriol oil be top, returns acidleach terminal workshop (5) circulation usefulness, so forms material two systemic circulations;
Circulation three: making pure calcium sulfate, to need the sodium sulfate raw material be terminal, and it is reflected at sodium sulfate raw material terminal workshop (9) and carries out; Gypsum mud behind the purifying reacts in the main reaction still (22) in workshop, sodium sulfate raw material top (10) with sodium hydroxide by mass ratio 1: 0.2-0.7, obtaining white calcium hydroxide precipitation and metabisulfite solution is top, return sodium sulfate raw material terminal workshop (9) circulation usefulness after the removal of impurities, so form material three systemic circulations;
Circulation four: the calcium chloride raw material that making pure calcium sulfate needs is a terminal, and it is reflected at calcium chloride raw material terminal workshop (11) and carries out; The calcium hydroxide that obtains with clear water washing three times and chlorine priority by mass ratio 1: the 0.4-1.1 chlorination is in the chlorination tower (24) in workshop, calcium chloride product top (12), chlorination process is a standard with chlorination table (27): when the number of degrees of chlorination table stop to be when constant the chlorination terminal point, chlorination has obtained high test bleaching powder afterwards and calcium chloride solution is top, return calcium chloride raw material terminal workshop (11) after the removal of impurities and recycle, so form material four systemic circulations;
In workshop, sodium-chlor top (4), workshop, acidleach top (8), workshop, sodium sulfate raw material top (10), lining, workshop, calcium chloride raw material top (12) generate sodium-chlor respectively, the vitriol oil, sodium sulfate, the material of four kinds of recycles of calcium chloride, its technical process is as follows:
At first with the waste gypsum mud purifying: purge process comprises takes off assorted and natural subsidence, acidifying and purification.Its concrete technical process is:
The first step: waste gypsum mud and water are by weight 1: 4-8 is mixed in pretreater (13) the lining back natural subsidence that stirs and removes impurity and obtain the pure emulsion of gypsum, pure emulsion of gypsum and hydrochloric acid react on cleaner (14) by mass ratio 1: 0.2-0.6, make and reach complete reaction between material, suction filtration gets calcium chloride and sulfuric acid mixture liquid and filter cake, and filter cake can make gac; Second step: the filtrate of the first step and sodium sulfate react on auxiliary reactor (18) lining suction filtration by mass ratio 1: 1-1.4 and get filter cake and filtrate, filter cake calcium sulfate gets pure calcium sulfate three times with the clear water washing, filtrate is through distillation, crystallisation by cooling gets purified sodium chloride crystal and sulphuric acid soln: sodium-chlor returns the workshop recycle of sodium-chlor terminal, sulphuric acid soln obtains the concentrated sulfuric acid solution of 75-85% again through underpressure distillation, the vitriol oil returns the acidleach terminal workshop recycle of titanium powder plant.
Chemical principle is as follows:
The first step: CaSO
4+ 2HCl → CaCl
2+ H
2SO
4
Second step: [CaCl
2+ H
2SO
4]+Na
2SO
4→ CaSO
4↓+2NaCl+H
2SO
4
Refining gac: [CaSO
4+ C]+2HCl → CaCl
2+ H
2SO
4+ C
The 3rd step: CaSO
4+ 2NaOH → Ca (OH)
2↓+Na
2SO
4
The 4th step: 8Ca (OH)
2+ 6Cl
2→ 3Ca (GlO)
22Ca (OH)
22H
2O ↓+3CaCl
2+ 4H
2O electrolytic industry salt solution principle:
Calcium carbide route vinylchlorid forms principle: CaC+H
2O → C
2H
2+ Ca (OH)
2↓ (carbide slag)
C
2H
2+HCl→CH
2＝＝＝CHCl
Description of drawings:
Fig. 1: be circulation one process flow diagram, wherein
1-sodium-chlor terminal workshop, 2-sodium hydroxide workshop, 3-chlorine workshop, workshop, 4-sodium-chlor top,
Fig. 2: be circulation two process flow diagrams, wherein
5-acidleach terminal workshop, 6-titanyl sulfate workshop, 7-ferrous sulfate workshop, 8-produces workshop, sour top.
Fig. 3: be circulation three process flow diagrams, wherein
9-sodium sulfate raw material terminal workshop, workshop, 10-sodium sulfate product top.
Fig. 4: be circulation four process flow diagrams, wherein
11-calcium chloride raw material terminal workshop, workshop, 12-calcium chloride product top.
Fig. 5: be the process flow diagram of sodium-chlor, sulfuric acid, sodium sulfate, calcium chloride generation, wherein
The 13-pretreater, 14-cleaner, 16-absorbent charcoal fine purification device, 18-secondary reacting kettle, 20-distillation tower, 21-condenser, 22-main reaction still, 24 chlorination towers, 26-finishing room, 27 chlorination tables, 28-pulverizer, 1517192325-whizzer.
Concrete embodiment:
To describe the embodiment of the preferable part of the present invention below, but content of the present invention is not limited to this.
Embodiment 1:
The waste gypsum mud of titanium powder plant is got 200kg and service water injected 13 li of pretreaters by weight 1: 6, stirring becomes the emulsion natural subsidence and removes bottom impurity and take out more purified gypsum emulsion.Then inject cleaner at 1: 0.4 by mass ratio and carry out stirring reaction for 14 li with hydrochloric acid, back complete reaction gets calcium chloride and sulfuric acid mixed solution, centrifugal that filter cake can be made with extra care gac 12kg through whizzer 15, obtain filtrate calcium chloride 97.31kg and sulfuric acid 85.91kg respectively; Filtrate and sodium sulfate are mixed in 18 li reactions of secondary reacting kettle by mass ratio and generate purified calcium sulfate 111.84kg and sodium-chlor 96.21kg at 1: 1.2, after whizzer 17 is centrifugal filtrate through distillation tower 20, condenser 21, the sodium chloride crystal and the vitriol oil of distillation and crystallisation by cooling return recycle respectively; Remaining filter cake continues and sodium hydroxide press mass ratio 1: 0.8 and precipitated 82.76kg and sodium sulfate 158.81kg at 22 li purified calcium hydroxides of reaction generation of main reaction still, returns recycle through whizzer 19 centrifugal metabisulfite solutions; And filter cake calcium hydroxide and chlorine are pressed mass ratio 1: 0.8 generation high test bleaching powder 95.27kg and calcium chloride 51.74kg after 24 li chlorinations of chlorination tower, calcium chloride solution after whizzer 25 is centrifugal returns recycle, and high test bleaching powder enters finishing room 26 more after drying and both had been standard prod through pulverizer 28 crushing packings.
Embodiment 2:
Get waste gypsum mud 200kg and water and stirred into uniform emulsion by 1: 4 in the injection pretreater, more purified emulsion that obtains after the natural subsidence and hydrochloric acid are by the mixed solution that injects cleaner generation calcium chloride 48.66kg and sulfuric acid 42.96kg at 1: 0.2. and filtering filter cake can be gac 12kg; Filtrate and sodium sulfate reacted by 1: 1 and obtain sulfate precipitate calcium 59.62kg and sodium-chlor 51.29kg, filtered to get filtrate through distilling to such an extent that sodium-chlor and sulfuric acid return recycle; Filter cake and sodium hydroxide by react at 1: 0.2 calcium hydroxide 11.03kg and sodium sulfate 21.16kg, sodium sulfate returns recycle after filtration; Filter cake and chlorine were sent into the chlorination of chlorination tower respectively by 1: 0.4 and are got high test bleaching powder 6.35kg and calcium chloride 3.45kg, separated to such an extent that calcium chloride solution returns recycle, and the high test bleaching powder drying is pulverized, and packing becomes standard prod.
Embodiment 3:
Get waste gypsum mud 200kg and water and stirred into uniform emulsion by 1: 8 in the injection pretreater, more purified emulsion that obtains after the natural subsidence and hydrochloric acid are by the mixed solution that injects cleaner generation calcium chloride 130.59kg and sulfuric acid 115.29kg at 1: 0.6. and filtering filter cake can be gac 12kg; Filtrate and sodium sulfate reacted by 1: 1.4 and obtain sulfate precipitate calcium 160kg and sodium-chlor 137.65kg, filtered to get filtrate through distilling to such an extent that sodium-chlor and sulfuric acid return recycle; Filter cake and sodium hydroxide by react at 1: 0.7 calcium hydroxide 87.06kg and sodium sulfate 167.06kg, sodium sulfate returns recycle after filtration; Filter cake and chlorine were sent into the chlorination of chlorination tower respectively by 1: 1.1 and are got high test bleaching powder 90.14kg and calcium chloride 48.97kg, separated to such an extent that calcium chloride solution returns recycle, and the high test bleaching powder drying is pulverized, and packing becomes standard prod.
Claims (2)
1. waste gypsum mud and chlorine industry are produced the method for the four systemic circulations reaction that forms, and it is characterized in that:
Circulation one: chlorine industry potroom electrolytic sodium chloride is sodium-chlor terminal workshop (1); Sodium hydroxide is in sodium hydroxide workshop (2) refining output after the electrolysis; Refining chlorine is in chlorine workshop (3) output after the electrolysis; The waste gypsum mud that polyvinyl chloride factory carbide slag is neutralized into titanium powder plant is crossed a series of chemical reaction at workshop, sodium-chlor top (4) back warp, and finally to generate sodium-chlor be top, and sodium-chlor returns sodium-chlor terminal workshop (1) circulation, so forms material one systemic circulation;
Circulation two: it is terminal that titanium powder plant acidleach terminal workshop (5) vitriol oil soaks ilmenite; Titanyl sulfate extracts in titanyl sulfate workshop (6) after the acidleach; Extracting the back ferrous sulfate separates out in ferrous sulfate workshop (7); Useless vitriolic is discharged and is neutralized into gypsum mud and crosses a series of chemical reaction at workshop, acidleach top (8) back warp finally to generate the vitriol oil be top, returns acidleach terminal workshop (5) circulation usefulness, so forms material two systemic circulations;
Circulation three: making pure calcium sulfate, to need the sodium sulfate raw material be terminal, and it is reflected at sodium sulfate raw material terminal workshop (9) and carries out; Gypsum mud behind the purifying reacts in the main reaction still (22) in workshop, sodium sulfate raw material top (10) with sodium hydroxide by mass ratio 1: 0.2-0.7, obtaining white calcium hydroxide precipitation and metabisulfite solution is top, return sodium sulfate raw material terminal workshop (9) circulation usefulness after the removal of impurities, so form material three systemic circulations;
Circulation four: the calcium chloride raw material that making pure calcium sulfate needs is a terminal, and it is reflected at calcium chloride raw material terminal workshop (11) and carries out; The calcium hydroxide that obtains with clear water washing three times and chlorine priority by mass ratio 1: the 0.4-1.1 chlorination is in the chlorination tower (24) in workshop, calcium chloride product top (12), chlorination process is a standard with chlorination table (27): when the number of degrees of chlorination table stop to be when constant the chlorination terminal point, chlorination has obtained high test bleaching powder afterwards and calcium chloride solution is top, return calcium chloride raw material terminal workshop (11) after the removal of impurities and recycle, so form material four systemic circulations;
In workshop, sodium-chlor top (4), workshop, acidleach top (8), workshop, sodium sulfate raw material top (10), lining, workshop, calcium chloride raw material top (12) generate sodium-chlor respectively, the vitriol oil, sodium sulfate, the material of four kinds of recycles of calcium chloride, its technical process is as follows:
At first with the waste gypsum mud purifying: purge process comprises takes off assorted and natural subsidence, acidifying and purification.
2. described a kind of waste gypsum mud of claim 1 and chlorine industry are produced the method for the four systemic circulations reaction that forms, and it is characterized in that the concrete technology of waste gypsum mud purifying being:
The first step: waste gypsum mud and water are by weight 1: 4-8 is mixed in pretreater (13) the lining back natural subsidence that stirs and removes impurity and obtain the pure emulsion of gypsum, pure emulsion of gypsum and hydrochloric acid react on cleaner (14) by mass ratio 1: 0.2-0.6, make to reach complete reaction between material, suction filtration gets calcium chloride and sulfuric acid mixture liquid and filter cake; Second step: the filtrate of the first step and sodium sulfate react on auxiliary reactor (18) lining suction filtration by mass ratio 1: 1-1.4 and get filter cake and filtrate, filter cake calcium sulfate gets pure calcium sulfate three times with the clear water washing, filtrate is through distillation, crystallisation by cooling gets purified sodium chloride crystal and sulphuric acid soln: sodium-chlor returns the workshop recycle of sodium-chlor terminal, sulphuric acid soln obtains the concentrated sulfuric acid solution of 75-85% again through underpressure distillation, the vitriol oil returns the acidleach terminal workshop recycle of titanium powder plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100365796A CN101624204B (en) | 2009-01-12 | 2009-01-12 | Four-great circulation method formed by waste gypsum mud and chlor-alkali industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100365796A CN101624204B (en) | 2009-01-12 | 2009-01-12 | Four-great circulation method formed by waste gypsum mud and chlor-alkali industry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101624204A CN101624204A (en) | 2010-01-13 |
| CN101624204B true CN101624204B (en) | 2011-05-18 |
Family
ID=41520220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100365796A Expired - Fee Related CN101624204B (en) | 2009-01-12 | 2009-01-12 | Four-great circulation method formed by waste gypsum mud and chlor-alkali industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101624204B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850954A (en) * | 2010-02-11 | 2010-10-06 | 汪晋强 | Method for preparing high-concentration sulfuric acid and anhydrous calcium chloride by using phosphorus gypsum |
| CN111364055B (en) * | 2020-01-17 | 2021-04-20 | 华中科技大学 | Phosphogypsum treatment device and method based on sodium sulfate electrolysis |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137488A (en) * | 1995-06-08 | 1996-12-11 | 福建省福州第二化工厂职工技术协会 | Process for preparing magnesium sulfate by using chlorine alkali offscum salt slurry |
| CN1228247C (en) * | 2003-12-25 | 2005-11-23 | 华东理工大学 | Process for producing super fine barium sulfate and calcium carbonate using chloralkali salt mud |
-
2009
- 2009-01-12 CN CN2009100365796A patent/CN101624204B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137488A (en) * | 1995-06-08 | 1996-12-11 | 福建省福州第二化工厂职工技术协会 | Process for preparing magnesium sulfate by using chlorine alkali offscum salt slurry |
| CN1228247C (en) * | 2003-12-25 | 2005-11-23 | 华东理工大学 | Process for producing super fine barium sulfate and calcium carbonate using chloralkali salt mud |
Non-Patent Citations (1)
| Title |
|---|
| 梁诚.国内氯碱行业实施循环经济的模式.《氯碱工业》.2007,(第3期),1-6. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101624204A (en) | 2010-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105129822B (en) | System and method for treating chlor-alkali production byproduct salt mud | |
| CN1122638C (en) | Comprehensive utilization method of waste ammonia sode liquid and sodium sulfate containing waste liquid | |
| CN107285371A (en) | The method for preparing feed grade zinc oxide using blast furnace dedusting ash and zinc waste residue | |
| CN108372185A (en) | A kind of titanium chloride slag resource utilization method and its device | |
| CN109607572A (en) | A method of comprehensive utilization subsurface brine production refined brine and calcium and magnesium compound | |
| CN105884082A (en) | Method for treating acid wastewater in titanium dioxide production process through chlorination method | |
| CN101624204B (en) | Four-great circulation method formed by waste gypsum mud and chlor-alkali industry | |
| CN101486446B (en) | Method for coproduction of bleaching powder, active carbon, sodium chloride and sulphuric acid from waste gypsum plaster | |
| CN109694092A (en) | A kind of comprehensive processing method of the solid waste containing chlorine | |
| CN105819415B (en) | A kind of production method for the full utilization of resources of phosphorus ore that hydrochloric acid produces calcium hydrogen phosphate fodder | |
| CN105883884A (en) | Method for preparing industrial calcium chloride from thiourea waste residues | |
| CN100532273C (en) | Method for clean production of titanium dioxide by using potassium hydroxide | |
| CN107337216A (en) | A kind of method that potassium feldspar hydro-thermal alkaline process prepares potassium hydroxide | |
| CN101624180A (en) | Material circulating system formed in chlor-alkali industry by using waste carbide slags and chlorine water | |
| CN102795701A (en) | Method for treating acidic waste water from titanium dioxide preparation by sulfuric acid method | |
| CN101602487B (en) | Preparation method of calcium hypochlorite, sodium chloride and sulfuric acid employing limestone | |
| CN112174093B (en) | Method for producing bleaching powder by using carbide slag | |
| US4012297A (en) | Mercury recovery and recycle process | |
| CN101693527A (en) | Four material circulating systems formed by using limestone and chloralkali industry | |
| CN220098580U (en) | Alkali residue solid waste innocent treatment device | |
| CN102001694A (en) | Method for preparing magnesium carbonate and coproducing calcium carbonate and ammonium chloride by using sodium carbonate waste salt silt | |
| CN101792166A (en) | Method for producing blocky sodium hydroxide and calcium carbonate by using carbide slag | |
| CN101983916B (en) | Method for production of calcium chlorate and coproduction of ultra-fine calcium carbonate and sodium chloride by using acetylene sludge | |
| CN101913643A (en) | Method for preparing strontium hydroxide and coproducing calcium sulfate dihydrate from barium sulfide waste residue | |
| CN115340116B (en) | Method for recycling sodium and fluorine in alkali conversion wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 510413, room five, building 508, Jinhai building, Dongcheng District Tong Road, Dongguan, Guangdong Patentee after: Wang Jiaxing Address before: Wushi Village Primary School in Dongguan city of Dongcheng District province Guangdong road 510413 Lane 1 No. 6 main mountain Patentee before: Wang Jiaxing |
|
| ASS | Succession or assignment of patent right |
Owner name: NANTONG ZHOUYA CHEMICAL CO., LTD. Free format text: FORMER OWNER: WANG JIAXING Effective date: 20130918 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510413 DONGGUAN, GUANGDONG PROVINCE TO: 226361 NANTONG, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130918 Address after: Tongzhou District Pingchao town of city of Nantong province Jiangsu 226361 New Road No. 17 Patentee after: Nantong Zhouya Chemical Reagent Co., Ltd. Address before: 510413, room five, building 508, Jinhai building, Dongcheng District Tong Road, Dongguan, Guangdong Patentee before: Wang Jiaxing |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20180112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |