CN1140456C - Melting process and equipment to produce anhydrous cuprous chloride - Google Patents
Melting process and equipment to produce anhydrous cuprous chloride Download PDFInfo
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- CN1140456C CN1140456C CNB001328972A CN00132897A CN1140456C CN 1140456 C CN1140456 C CN 1140456C CN B001328972 A CNB001328972 A CN B001328972A CN 00132897 A CN00132897 A CN 00132897A CN 1140456 C CN1140456 C CN 1140456C
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- cuprous
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- chloride
- rase
- cuprous chloride
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- 229910021591 Copper(I) chloride Inorganic materials 0.000 title claims abstract description 31
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 title claims abstract description 31
- 229940045803 cuprous chloride Drugs 0.000 title claims abstract description 31
- 238000010309 melting process Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 23
- 239000010949 copper Substances 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 239000000428 dust Substances 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 6
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract description 4
- 150000001805 chlorine compounds Chemical class 0.000 claims description 20
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000003500 flue dust Substances 0.000 claims description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 8
- 238000005660 chlorination reaction Methods 0.000 claims description 8
- 239000000460 chlorine Substances 0.000 claims description 8
- 229910052801 chlorine Inorganic materials 0.000 claims description 8
- 229960003280 cupric chloride Drugs 0.000 claims description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 235000019270 ammonium chloride Nutrition 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 12
- 239000002351 wastewater Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 abstract 1
- 238000011109 contamination Methods 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 11
- 238000006722 reduction reaction Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 1
- 241001274216 Naso Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229960004643 cupric oxide Drugs 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The present invention relates to a technology for preparing anhydrous cuprous chloride with a melting method, and a device thereof. The present invention comprises the technological steps as follows: copper and chlorine gas react with each other in a molten state of cuprous chloride; excessive copper is added for a reduction; the second reduction is done, and a modifying agent, such as hydrogen chloride, ammonium, etc. is used to adjust oxide; product is discharged; contamination is cleared up. The production device is composed of a reaction vessel, an air inlet pipe, a cooling tray, a disintegrator or airflow granulator and a dust recycle unit. The present invention has the advantages of little raw material for production, no wastewater pollution, simple technology, low equipment investment and stable product quality, thereby satisfying the quality requirements of domestic and international markets.
Description
The invention belongs to the compound production technical field of copper, be specifically related to a kind ofly under the cuprous chloride molten state, copper and chlorine direct reaction be generated cuprous method and the device of anhydrous chlorides of rase.
Cuprous chloride is widely used in fields such as organic synthesis industry, pigment industry production phthalocyanine pigment and metallurgy, medicine, agricultural chemicals, plating.Existing manufacturing technique is carried out according to the following steps: (referring to accompanying drawing 1) carries out chlorination → the add water back that is hydrolyzed by mantoquita and chlorine and concentrate → uses NaSo
3HCL water washing → use HCL washing with alcohol → drying → crushing packing is wherein carried out copper powder earlier to the waste liquid that produces in the washing process and is reclaimed, then discharge of wastewater.From above-mentioned steps, we can analyze existing technology and have following shortcoming:
1. the cuprous chloride produced of ordinary method can not reach anhydrous state, influences preservation period, and can not satisfy the high quality requirement.
2. the hydrolysis solid-liquid concentrates to reclaim and uses, and behind certain number of times, causes quality product to descend because foreign matter content increases, and the processing of mother liquor pollutes environment.
3. must use ethanol dehydration, increase alcohol recovering device, remove the contained waste liquid exhaust emission environment behind the ethanol.
4. using the washing with alcohol cuprous chloride is artificial open-sky technique, and very big danger is arranged, and ethanol is also influential to workers ' health.
5. the cuprous chloride produced of ordinary method is Powdered (referring to Fig. 4,5), and the moulding of can not jetting influences the stability of quality product, and easily flies upward when reinforced, influences production environment.
6. constant product quality is poor, presses GB1619-79 (88) standard, stores can not ensure the quality of products after three months and now the national standard gap is bigger.
7. the high product consumption per ton of energy consumption colliery is 3 to 5 tons.
8. must do network and agent with salt.
9. technical process complexity, facility investment are big.
At existing technology above shortcomings, the object of the present invention is to provide a kind of employing scorification Metal Production anhydrous chlorides of rase cuprous, main raw material has only metallic copper and chlorine, do not make water, there is not contaminated wastewater, technology is simple, the cuprous production technique of scorification anhydrous chlorides of rase and the device of the quality of production stable (cuprous chloride content＞98%).
Technical scheme of the present invention is as follows:
1. chlorination: the heating cuprous chloride adds metallic copper to molten state, feeds the common molten thing that chlorine generates cupric chloride and cuprous chloride, the main reaction formula:
；
2. reduction: add excess metal copper and keep temperature, temperature is more than the cuprous chloride fusing point, and it is cuprous that the cupric chloride reduction is generated anhydrous chlorides of rase, main reaction:
At this moment, temperature should be controlled suitably, and the too high volatile matter of temperature is big, and temperature is crossed low material for making clothes curing reaction and can not be carried out.
In above-mentioned two steps, it is excessive that metallic copper should remain;
3. restore and the oxide compound adjustment:
1. add the cupric chloride that the excess copper reduction has not been reduced.
2. the oxide compound that the reaction of raw copper and leading portion is generated is adjusted, and adjusts the available ammonium chloride of agent, hydrogenchloride, hydrogen, ammonia, methyl alcohol etc., and temperature is controlled to be more than 500 ℃, below the boiling point.
3. in oxide compound is adjusted, adjust the agent add-on to cuprous chloride content 98%.
This 3rd step is the basis optional step fixed to product quality requirement.Because 1st, the cuprous content of anhydrous chlorides of rase that obtains of 2 step reactions can reach more than 98%, but there is more oxide compound, poor product quality, for the high enterprise of some quality requirements, can not meet the demands, so can select for use for the 3rd step oxide compound was adjusted, improve quality product, improve the stability of product.
4. discharging: according to product requirement, available ordinary method cooling is pulverized and is got product, and also available air-flow tablets press carries out granulation and gets finished product.Product after crushed is irregular Powdered, does not have the mode of appearance (referring to Fig. 6) of complete crystal formation and rule.Product appearance through the winding-up moulding is granular sphere (referring to Fig. 7).
5. dirt is handled: to the flue dust that overflows because of pyroreaction in the above step, use ordinary method such as static, ceramic filter, methods such as cloth bag filtration are filtered, and reclaim dust and utilize the gas behind the exhaust filtering again.
The reaction formula of above-mentioned technology is as follows:
Main reaction
Side reaction
Because above-mentioned technology is simplified greatly,, the present invention produces the cuprous device of anhydrous chlorides of rase so designing the scorification of corresponding this technology with respect to traditional technology:
This device is made up of reactor, cooling charging tray, pulverizer, jet granulating equipment, flue dust retrieving arrangement, and reactor also can respectively be used one or several stage by stage according to shared one of each step of reaction of the big I of turnout.Chlorination reaction pot and reduction are adjusted reactor (be step 1. and used reactor 3.) and are provided with gas inlet pipe, can select quartz glass tube or alumina tube for use, adjust agent in order to feed chlorine and oxide compound.Establish overflow groove that lead to adjust reactor on the wall of reactor middle and upper part, vertically establishes diversion trench near overflow notch in the reactor, move upward at the bottom of by reactor and flow out, and block suspended substance and enter next reactor with the guiding reactant to the reactor middle and lower part.Reactor adopts graphite, silica glass, pottery or diamond spar to make. and the reduction that step 3 is used is adjusted reactor and is connect copper cooling charging tray by overflow groove, cools off pulverizing.Perhaps, also can insert the air flow blowing granulating equipment and carry out granulation.The air-flow granulating equipment comprises high pressure draft nozzle, gas-solid separator, and the inlet mouth of high pressure draft nozzle alignment gas-solid separator, gas-solid separator are an inner cavity body, and bleeder valve is established in the bottom, and top sets out gas port, logical flue dust retrieving arrangement.The flue dust retrieving arrangement is made up of dust hood, cloth envelop collector blower fan and emptying chimney.Dust hood covers the employed equipment of each reactions steps in 1.-4., absorbs the flue dust that frit reaction is overflowed because of pyroreaction, and through the cloth bag filtered and recycled, the dust of recovery returns the chlorination reaction pot and utilizes again, and the gas after the filtration is discharged by chimney through blower fan.
Adopt this technology and device to produce cuprous chloride, have the following advantages:
1. the cuprous chloride of this technology institute output is that anhydrous chlorides of rase is cuprous, and the preservation of product is long with respect to the product of traditional technology, and quality product is higher.
2. raw materials for production have only the fundamental element of forming cuprous chloride.Be that copper and chlorine and small amounts thing are adjusted agent.
3. production process does not make water, does not have contaminated wastewater.
4. deducted the use of ethanol, salt, water, coal, hydrochloric acid, S-WAT.
5. throughput is big, but batch production also can be continuously produced.
6. constant product quality, cuprous chloride content＞99% can satisfy specification of quality domestic, the world market.
7. the product moulding of can jetting, spherical in pelletized form, surface-area is little, constant product quality; In addition, do not fly upward when reinforced, be beneficial to environment protection.
8. energy consumption is few, but self-heating is carried out when the serialization turnout is big, 30 to 50 kilograms of product consumption coking coal per ton or liquefied gas.
9. production technique is simplified, and facility investment is few, and the operator is not had healthy effect.
Below be cuprous and the existing method production of anhydrous chlorides of rase of producing with the inventive method and device cuprous chloride mass ratio:
Project indicator % quality of the present invention has the method quality now
Cuprous chloride 99.15-99.70 97.5-98.5
High mantoquita 0.30-0.60 1.5-2.0
Acid non-soluble substance 0.016-0.03 0.1-0.2
Vitriol 0.04-0.05 0.3
Iron 0.003-0.005 0.01-0.02
Total copper 63.50-64.00 63
Thermal losses＜0.10 is defective
The quality that the anhydrous chlorides of rase of producing with the inventive method and device is cuprous and the comparison of national standard and overseas enterprise's standard:
Above correlation data can prove further that the cuprous quality of anhydrous chlorides of rase of present method device production has surpassed prior art, has reached the quality product requirement of overseas enterprise.
The present invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is existing cuprous chloride technological process of production figure;
Fig. 2 is the cuprous technological process of production figure of anhydrous chlorides of rase of the present invention;
Fig. 3 is the cuprous production equipment synoptic diagram of anhydrous chlorides of rase of the present invention;
Fig. 4,5 cuprous chloride crystalline phase figure for ordinary method production;
Crystalline phase figure after the cuprous pulverizing of anhydrous chlorides of rase that Fig. 6 produces for inventive method;
The cuprous crystalline phase figure after the winding-up moulding of anhydrous chlorides of rase that Fig. 7 produces for inventive method.
Embodiment: in conjunction with Fig. 2, Fig. 3,1. at first chlorination reaction pot 5 is heated, add the height of cuprous chloride to chlorination reaction pot 1/5th three with process furnace 10, continue heating and melting, add metallic copper, and feed chlorine with quartz glass tube 12, at this moment reaction is thermopositive reaction, but self-heating is carried out.The cuprous chloride that reaction generates and the eutectic of cupric chloride are increased to overflow port and flow into next reduction reaction pot 6 through overflow groove 8.
2. add excessive copper in reduction reaction pot 6, should maintain the temperature at more than the cuprous chloride fusing point this moment, and below the boiling point, preferably to below 800 ℃, as long as the chlorination stage ordinary production, reduction phase is not generally done the temperature adjustment and can be met the demands.
3. the material through reducing enters the next reactor 7 of adjusting by diversion trench 9 and overflow groove 8 again, at first can continue to add metallic copper restores incomplete reductive cupric chloride, then, feed hydrogen chloride gas with quartz glass tube 12, the cupric oxide of the oxidation reaction with the Yin Gaowen ingress of air, be converted into copper or cupric chloride, temperature is controlled at more than 500 ℃, preferably between 800 ℃.
In this oxide compound adjusting stage, if adjust the agent add-on till reach the discharging standard.
4. the cuprous chloride of adjusting flows to copper charging tray 11 coolings by adjusting reactor 7, adopts ordinary method to pulverize, and gets finished product.
If need granulation; then will adjust high pressure draft nozzle 15 limits of reactor 7 effusive cuprous chloride warp let-off overflow groove snubbers 14 to the air flow blowing tablets press; blow into gas-solid separator 13 at a high speed by it; cuprous chloride becomes particle to fall; by 16 mouthfuls of discharges of bleeder valve; get pelletizing finished product, gas is siphoned away by the flue dust retrieving arrangement by the gas passage of gas with separator 13 tops.
The dust hood 4 of flue dust retrieving arrangement covers each above-mentioned device as smoke exhaust ventilator, will siphon away with dust hood 4 because of the smog that pyroreaction is overflowed, and filters through cloth envelop collector 3, is discharged by emptying cigarette fontanel 1 through blower fan 2 again.
Claims (6)
1. the cuprous production technique of scorification anhydrous chlorides of rase is characterized in that carrying out according to the following steps:
1. chlorination: the heating cuprous chloride adds metallic copper to molten state, feeds the common molten thing that chlorine generates cupric chloride and cuprous chloride, the main reaction formula:
；
2. reduction: add excess metal copper, it is cuprous that the cupric chloride reduction is generated anhydrous chlorides of rase, main reaction:
；
In above-mentioned two steps, it is excessive that metallic copper should remain;
3. discharging;
4. dirt is handled: the filtrating smoke dust that overflows because of pyroreaction in the above step is reclaimed;
The cuprous chloride product of this explained hereafter is an anhydrous state.
2. according to the cuprous production technique of the described scorification anhydrous chlorides of rase of claim 1, it is characterized in that above-mentioned 1., 2. restore and the oxide compound adjustment after the step, inflation method adjusts agent the oxide compound that raw copper and leading portion reaction are generated is adjusted for adding hydrogenchloride, ammonium chloride or hydrogen, ammonia, methyl alcohol.
3. the cuprous production technique of scorification anhydrous chlorides of rase according to claim 1 and 2, it is characterized in that step 1., 2. in temperature should remain on more than the cuprous chloride fusing point.
4. produce the cuprous device of anhydrous chlorides of rase with scorification; it is characterized in that it is made up of reactor, gas inlet pipe, cooling charging tray, pulverizer or air-flow tablets press and flue dust retrieving arrangement; establish on the wall of reactor middle and upper part and lead to the overflow groove that next adjusts reactor; gas inlet pipe stretches in the reactor; the dust hood of flue dust retrieving arrangement covers on reactor, cooling charging tray, pulverizer or the air-flow tablets press; dust hood is communicated with strainer; strainer connects blower fan, the fan outlet sky chimney that runs in.
5. device according to claim 4 is characterized in that reactor adopts graphite, silica glass, pottery or diamond spar to make, gas inlet pipe adopting quartz glass pipe or alumina tube, and the cooling charging tray adopts the copper dish.
6. device according to claim 5, it is characterized in that reactor can establish single also can be provided with a plurality of to be respectively applied for different reactions steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001328972A CN1140456C (en) | 1999-12-10 | 2000-11-10 | Melting process and equipment to produce anhydrous cuprous chloride |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99117447.X | 1999-12-10 | ||
| CN99117447 | 1999-12-10 | ||
| CNB001328972A CN1140456C (en) | 1999-12-10 | 2000-11-10 | Melting process and equipment to produce anhydrous cuprous chloride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1299779A CN1299779A (en) | 2001-06-20 |
| CN1140456C true CN1140456C (en) | 2004-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001328972A Expired - Lifetime CN1140456C (en) | 1999-12-10 | 2000-11-10 | Melting process and equipment to produce anhydrous cuprous chloride |
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| CN (1) | CN1140456C (en) |
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| CN107740088B (en) * | 2017-09-24 | 2020-05-19 | 盐城师范学院 | Interface rapid and controllable preparation method of cuprous chloride microcrystalline material |
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Effective date of registration: 20121119 Address after: 225722 Jiangsu city of Xinghua Province Zhang Guo Zhen Ren Min Road No. 2 Patentee after: Jiangsu Shuangle Chemical Pigment Co.,Ltd. Address before: Lijiatuo Chongqing relocation village 400054 Banan District No. 90-13 Patentee before: Zhang Zhilun |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 225722 Jiangsu city of Xinghua Province Zhang Guo Zhen Ren Min Road No. 2 Patentee after: SUNLOUR PIGMENT CO.,LTD. Address before: 225722 Jiangsu city of Xinghua Province Zhang Guo Zhen Ren Min Road No. 2 Patentee before: Jiangsu double ball pigment Limited by Share Ltd. Address after: 225722 Jiangsu city of Xinghua Province Zhang Guo Zhen Ren Min Road No. 2 Patentee after: Jiangsu double ball pigment Limited by Share Ltd. Address before: 225722 Jiangsu city of Xinghua Province Zhang Guo Zhen Ren Min Road No. 2 Patentee before: Jiangsu Shuangle Chemical Pigment Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20040303 |
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| CX01 | Expiry of patent term |