CN103252208B - System for continuously preparing activated clay - Google Patents
System for continuously preparing activated clay Download PDFInfo
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- CN103252208B CN103252208B CN201310136573.2A CN201310136573A CN103252208B CN 103252208 B CN103252208 B CN 103252208B CN 201310136573 A CN201310136573 A CN 201310136573A CN 103252208 B CN103252208 B CN 103252208B
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- atlapulgite
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- 239000004927 clay Substances 0.000 title abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 70
- 239000002253 acid Substances 0.000 claims abstract description 36
- 230000004913 activation Effects 0.000 claims abstract description 23
- 238000010306 acid treatment Methods 0.000 claims abstract description 19
- 239000000428 dust Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 42
- 238000002360 preparation method Methods 0.000 claims description 28
- 239000002002 slurry Substances 0.000 claims description 20
- 239000012065 filter cake Substances 0.000 claims description 15
- 238000004537 pulping Methods 0.000 claims description 11
- 239000003245 coal Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000009776 industrial production Methods 0.000 abstract description 3
- 238000009835 boiling Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 3
- 238000003825 pressing Methods 0.000 abstract 3
- 238000009826 distribution Methods 0.000 abstract 2
- 238000003801 milling Methods 0.000 abstract 2
- 238000007664 blowing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000003912 environmental pollution Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 101100493711 Caenorhabditis elegans bath-41 gene Proteins 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a system for continuously preparing activated clay. The system comprises a slurrying system, an activation system, an acid distribution system, a rinsing system, a filter pressing system, a drying system, a milling system and a waste acid treatment system, wherein the slurrying system, the activation system, the acid distribution system, the rinsing system, the filter pressing system, the drying system and the milling system are sequentially arranged in a stepped manner from up to down; the waste acid treatment system and the filter pressing system are arranged in the same step; the drying system comprises a hot-blast stove and a drying kiln; two ends of the drying kiln are respectively provided with a charging end and a discharging end; the hot-blast stove is arranged at the discharging end of the drying kiln; an air blower which is used for blowing hot air into the drying kiln is arranged at the discharging end, or a draught fan is arranged at the charging end of the drying kiln; and the conveying direction of a material in the drying kiln is opposite to the conveying direction of the hot air. According to the system, the environment pollution is reduced to a great extent in a continuous and mechanical manner. The flowing dust pollution and the emission of waste acid and boiling water are eliminated almost. The system is an industrial production system capable of realizing the recycling economy.
Description
Technical field
The invention belongs to atlapulgite preparation, relate in particular to a kind of atlapulgite serialization preparation system.
Background technology
Domestic carclazyte demand, especially high-efficient activated clay in great demand, therefore atlapulgite market potential is huge.Also have much about atlapulgite preparation technology's research, affect in summary factor prepared by atlapulgite and mainly contain 3 points, the one, the impact of sulfuric acid concentration, the addition of sulfuric acid is the principal element that affects atlapulgite quality, it is also related to complexity and the water consumption of rinsing; The 2nd, the impact of bentonitic granularity, the granularity of raw material directly affects the degree of priming reaction, and granularity is crossed senior general and is caused activation difficulty; The 3rd, the impact of the granularity of atlapulgite, the granularity of atlapulgite is the key factor that determines its quality, and granularity is less, and specific area is larger, and its percent of decolourization and activity degree are also just higher; But when granularity is little, also bring the problem that the rate of filtration is low.Except above-mentioned factor, also have some other factor to be prepared with impact to atlapulgite.Such as, activation temperature, stirring intensity, rinsing number of times and oven dry degree etc.For example Chinese patent (application number: 200810020192.7) disclose a kind of production technology of atlapulgite, comprised following operation: A) slurrying purification process; B) acidizing process; C) activation procedure; D) press filtration operation; E) baking operation; F) pulverizing process; G) inspection, packaging and warehouse-in operation; This invention compared with prior art, by former atlapulgite great Chi soaking and water washing technique being changed into depickling processing before acidifying slurry washing, and is washed with high-pressure flow water.By the high pressure depickling in early stage and the Granularity Structure of high pressure washing change atlapulgite, adopt novel device and control technology, be processed into fast worry type atlapulgite product, do not changing under the prerequisite of decoloration performance, make the rate of filtration of product bring up to and be less than 7 minutes from about 12 minutes, thereby increase user's service efficiency.Save the water consumption of unit product simultaneously, changed the Granularity Structure of product, reduced the generation of later process fine powder.
The factors such as technical study bonding apparatus and cost, implement to industrial production and also have problems.At present, theDeveloping is produced the problem that ubiquity technique is backward, cost is high, environmental pollution is serious and product quality is low.In a word, the production of atlapulgite is the engineering of a comparison system, complexity, need to consider various influence factor reasonable arrangements and produce.Mainly there is following defect in activated clay production at present: 1,, due in activated clay production process, serialization mechanization is inadequate, and the production cycle extends.And manual operation also causes atlapulgite wet stock to be scattered and the loss of atlapulgite airborne dust.2, washing efficiency is low, and water suction leaching requirement is large.3, environmental pollution is serious, outer row's carclazyte waste water severe overweight.
Summary of the invention
The object of the invention is to solve in activated clay production, serialization mechanization is inadequate, the problem that environmental pollution is serious.Environmental pollution comprises airborne dust and wastewater and waste acid discharge beyond standards.
The present invention, for addressing the above problem, provides a kind of atlapulgite serialization preparation system.
A kind of atlapulgite serialization preparation system, comprises pulping system, activation system, point acid system, rinse-system, press filteration system, drying system, scratch system.Described drying system comprises hot-blast stove and drying kiln, and drying kiln two ends are respectively feed end and exhaust end; Described hot-blast stove is placed in the exhaust end of drying kiln, is provided with the air blast of hot blast being sent into drying kiln at exhaust end, or is provided with air-introduced machine at the feed end of drying kiln; Make in drying kiln material direction of transfer contrary with hot blast direction of transfer.
On drying kiln, hot blast direction of transfer is contrary with the throughput direction of atlapulgite, be that discharge end is exactly the initiating terminal that hot blast transmits, hot blast with atlapulgite heat exchange after, the atlapulgite of oven dry is discharged, the atlapulgite heat exchange that hot blast continues forward and fully do not dry, takes full advantage of heat.Avoid in prior art, hot blast is discharged together with material drying, wasted heat.
Described pulping system, activation system, point acid system, rinse-system, press filteration system, drying system, scratch system stepped arrangement from high to low successively; Also comprise that spent acid treatment system is arranged in the same ladder of press filteration system.Effectively utilize ground potential energy to transmit material and use manpower and material resources sparingly, be convenient to mechanization production.
Described pulping system comprises the motor of troughing and troughing top, assembles shaft on motor, and blade is set on shaft; For better beating results, described blade is one group of paddle that is multilayer pagoda shape; Troughing bottom arranges the pipeline of carrying former slurry, carries the pipeline of former slurry to connect activation system, transmits former slurry by pump.
Described activation system comprises reaction kettle body, the pipeline of the former slurry of described conveying is delivered to former slurry in kettle, in kettle, be provided with paddle, on kettle, be provided with concentrated sulfuric acid pipeline and dilute sulfuric acid pipeline, on pipeline, be respectively equipped with concentrated sulfuric acid batch box and dilute sulfuric acid batch box, utilize batch box can before activation, put required sulfuric acid well, accurately convenient.Autoclave body bottom also arranges the pipeline of carrying actived slurry, carries the pipeline of actived slurry to connect a point acid system.
A described point acid system comprises a point acid fracturing filter, below point acid fracturing filter, dilute sulfuric acid recovery pond is set, dilute sulfuric acid recovery pond bottom arranges pipeline and connects the dilute sulfuric acid pipeline in described activation system, by pump transmission, atlapulgite filter cake after point acid is sent to filter cake by conveyer belt and breaks up pond, and filter cake is broken up and in pond, filter cake is set and breaks up oar; Filter cake arranges pipeline connection rinse-system at the bottom of breaing up pond, by pump transmission.
Described rinse-system comprises rinsing bath, and rinsing bath arranges rinsing paddle, and rinsing bath bottom arranges pipeline and connects press filteration system, by plunger displacement pump transmission; Described press filteration system comprises filter press and carries the atlapulgite conveyer belt after rinsing, conveyer belt connection drying system.
Drying system is power consumption and the link of airborne dust maximum in atlapulgite preparation system, in order to save the energy, and control airborne dust; Described drying kiln comprises inner heat-insulation layer and outside surrounding layer.Drying kiln is Horizontal cylinder body, and inwall is evenly distributed with at least one group of lifting blade vertically, and the adjacent lifting blade on the same cross section of inwall is different from the angle of described drying kiln tangential direction; Drying kiln is and is in tilted layout, and feed end is higher than exhaust end, and gradient is between 1～10 degree; The feed end of drying kiln is provided with charging motor; On hot-blast stove, be provided with into coal motor; Charging motor, enter the thermometer that arranges on coal motor, drying kiln and connect controller; Described hot-blast stove is reciprocating fire grate combustion furnace; The charging port of drying kiln is provided with lock wind spiral reamer; The feed end of described drying kiln is provided with cyclone collector and sack cleaner.
Described scratch system comprises, comprises pay-off, and with the Raymond machine that pay-off joins, Raymond machine arranges cyclone separator and collects the atlapulgite after abrasive dust, is also provided with sack cleaner is set afterwards.
The spent acid that atlapulgite is crossed in the rinsing that described press filteration system and rinse-system produce is connected to spent acid treatment system by pipeline, described spent acid treatment system, comprise spent acid treatment pond, spent acid treatment pond bottom arranges pipeline and connects spent acid processing filter press, by pump drive, conveyer belt is set below filter press and is sent to dryer.Generally by adding lime, then press filtration dries, and produces calcium sulfate.
A described point acid system is provided with pipeline connection pulping system and activation system carries the spent acid only activating once to recycle.
The invention has the beneficial effects as follows pulping system, activation system, point acid system, rinse-system, press filteration system, drying system, scratch system stepped arrangement from high to low successively; Spent acid treatment system is arranged in the same ladder of press filteration system and adds between each system and utilize pipeline and conveyer belt convey materials, in realizing mechanization, has saved manpower and materials.For wherein each system, there is again corresponding improvement, the such as paddle of the multilayer pagoda shape in refining system improves making beating efficiency etc., particularly drying system, its contrary wind formula is dried and had both been saved cost, improves again drying efficiency.Preparation system of the present invention, utilizes serialization mechanization, greatly the reduction environmental pollution of degree.Dust pollution and the discharge of spent acid boiling water almost do not have, and are a kind of industrial production systems of recycling economy.
Brief description of the drawings
Fig. 1: a kind of schematic diagram of atlapulgite serialization preparation system
Fig. 2: a kind of pulping system schematic diagram of atlapulgite serialization preparation system
Fig. 3: a kind of activation system schematic diagram of atlapulgite serialization preparation system
Fig. 4: a kind of point acid system schematic diagram of atlapulgite serialization preparation system
Fig. 5: a kind of rinse-system schematic diagram of atlapulgite serialization preparation system
Fig. 6: a kind of press filteration system schematic diagram of atlapulgite serialization preparation system
Fig. 7: a kind of drying system schematic diagram of atlapulgite serialization preparation system
Fig. 8: a kind of scratch system schematic diagram of atlapulgite serialization preparation system
Fig. 9: a kind of spent acid treatment system schematic diagram of atlapulgite serialization preparation system
Figure 10: drying kiln lifting blade cross section structure schematic diagram
Detailed description of the invention
Embodiment 1, a kind of atlapulgite serialization preparation system
A kind of atlapulgite serialization preparation system, comprise pulping system 1, activation system 2, point acid system 3, rinse-system 4, press filteration system 5, drying system 6, scratch system 7, it is characterized in that: described drying system 6 comprises hot-blast stove 62 and drying kiln 63, and drying kiln 63 two ends are respectively feed end 66 and exhaust end 67; Described hot-blast stove 62 is placed in the exhaust end 67 of drying kiln 63, is provided with the air blast 612 of hot blast being sent into drying kiln 63 at exhaust end 67, or is provided with air-introduced machine 611 at the feed end 66 of drying kiln 63; Make in drying kiln 63 material direction of transfer contrary with hot blast direction of transfer.
Described pulping system 1, activation system 2, point acid system 3, rinse-system 4, press filteration system 5, drying system 6, scratch system 7 stepped arrangement from high to low successively; Also comprise spent acid treatment system 8 and be arranged in the same ladder of press filteration system 5.
Described pulping system 1 comprises the motor 12 of troughing 11 and troughing top, assembles shaft 13 on motor, and blade 14 is set on shaft; Described blade 14 is one group of paddle that are multilayer pagoda shape; Troughing bottom arranges the pipeline of carrying former slurry, carries the pipeline of former slurry to connect activation system.
Described activation system 2 comprises reaction kettle body 21, the pipeline of the former slurry of described conveying is delivered to former slurry in kettle 21, in kettle 21, be provided with paddle 22, on kettle, be provided with concentrated sulfuric acid pipeline and dilute sulfuric acid pipeline, on pipeline, be respectively equipped with concentrated sulfuric acid batch box 23 and dilute sulfuric acid batch box 24, autoclave body bottom also arranges the pipeline of carrying actived slurry, carries the pipeline of actived slurry to connect a point acid system.
A described point acid system 3 comprises a point acid fracturing filter 31, and point acid fracturing filter 31 arranges dilute sulfuric acid recovery pond 32 below, and dilute sulfuric acid recovery pond bottom arranges pipeline and connects the dilute sulfuric acid pipeline in described activation system 2, carries the spent acid only activating once to recycle; Atlapulgite filter cake after point acid is sent to filter cake by conveyer belt and breaks up pond 33, and filter cake is broken up and in pond, filter cake is set and breaks up oar 34; Filter cake arranges pipeline connection rinse-system at the bottom of breaing up pond.
Described rinse-system 4 comprises rinsing bath 41, and rinsing bath is provided with rinsing paddle 42, and rinsing bath bottom arranges pipeline and connects press filteration system, transmits by plunger displacement pump 43; Described press filtration is that 5 turnkeys are drawn together filter press 51 and carried the atlapulgite conveyer belt after rinsing, and conveyer belt connects drying system.
Described drying kiln 63 also comprises inner heat-insulation layer 614 and outside surrounding layer 615.
Described drying kiln 63 is Horizontal cylinder body, and inwall is evenly distributed with at least one group of lifting blade 613 vertically, and the adjacent lifting blade on the same cross section of inwall is different from the angle of described drying kiln 63 tangential directions; Drying kiln 63 is and is in tilted layout, and feed end 66 is higher than exhaust end 67, and gradient is between 1～10 degree; The feed end 66 of drying kiln 63 is provided with charging motor 68; On hot-blast stove 62, be provided with into coal motor 69; Charging motor 68, enter on coal motor 69, drying kiln 63 thermometer 616 arranging and connect controller 610; Hot-blast stove 62 is reciprocating fire grate combustion furnaces; 66 mouthfuls of the feed ends of drying kiln 63 are provided with lock wind spiral reamer 61; The feed end 66 of drying kiln 63 is also provided with cyclone collector 64 and sack cleaner 65.
Described scratch system 7 comprises, comprises pay-off 71, and with the Raymond machine 72 that pay-off 71 joins, Raymond machine 72 arranges cyclone separator 73 and collects the atlapulgite after abrasive dust, is also provided with afterwards sack cleaner 74 is set.
The spent acid that atlapulgite is crossed in the rinsing that described press filteration system 5 and rinse-system 4 produce is connected to spent acid treatment system 8 by pipeline, described spent acid treatment system 8, comprise spent acid treatment pond 81, spent acid treatment pond 81 bottoms arrange pipeline and connect spent acid processing filter press 82, by pump drive, conveyer belt is set below filter press and is sent to dryer 83.
Claims (9)
1. an atlapulgite serialization preparation system, is characterized in that: comprise successively the pulping system of stepped arrangement (1), activation system (2), point acid system (3), rinse-system (4), press filteration system (5), drying system (6), scratch system (7) from high to low; Also comprise spent acid treatment system (8) and be arranged in the same ladder of press filteration system (5); Described drying system (6) comprises hot-blast stove (62) and drying kiln (63), and drying kiln (63) two ends are respectively feed end (66) and exhaust end (67); Described hot-blast stove (62) is placed in the exhaust end (67) of drying kiln (63), be provided with the air blast (612) of hot blast being sent into drying kiln (63) at exhaust end (67), or be provided with air-introduced machine (611) at the feed end (66) of drying kiln (63); Make the middle material direction of transfer of drying kiln (63) contrary with hot blast direction of transfer.
2. atlapulgite serialization preparation system as claimed in claim 1, it is characterized in that: described pulping system (1) comprises the motor (12) of troughing (11) and troughing top, on motor, assemble shaft (13), blade (14) is set on shaft; Described blade (14) is one group of paddle that is multilayer pagoda shape; Troughing bottom arranges the pipeline of carrying former slurry, carries the pipeline of former slurry to connect activation system.
3. atlapulgite serialization preparation system as claimed in claim 1, it is characterized in that: described activation system (2) comprises reaction kettle body (21), carry the pipeline of former slurry that former slurry is delivered in kettle (21), in kettle (21), be provided with paddle (22), on kettle, be provided with concentrated sulfuric acid pipeline and dilute sulfuric acid pipeline, on pipeline, be respectively equipped with concentrated sulfuric acid batch box (23) and dilute sulfuric acid batch box (24), autoclave body bottom also arranges the pipeline of carrying actived slurry, carries the pipeline of actived slurry to connect a point acid system.
4. atlapulgite serialization preparation system as claimed in claim 1, it is characterized in that: a described point acid system (3) comprises a point acid fracturing filter (31), divide acid fracturing filter (31) that dilute sulfuric acid recovery pond (32) is set below, dilute sulfuric acid recovery pond bottom arranges pipeline and connects the dilute sulfuric acid pipeline in described activation system (2), atlapulgite filter cake after point acid is sent to filter cake by conveyer belt and breaks up pond (33), and filter cake is broken up and in pond, filter cake is set and breaks up oar (34); Filter cake arranges pipeline connection rinse-system at the bottom of breaing up pond.
5. atlapulgite serialization preparation system as claimed in claim 1, it is characterized in that: described rinse-system (4) comprises rinsing bath (41), rinsing bath is provided with rinsing paddle (42), rinsing bath bottom arranges pipeline and connects press filteration system, transmits by plunger displacement pump (43); Described press filteration system (5) comprises filter press (51) and carries the atlapulgite conveyer belt after rinsing, conveyer belt connection drying system (6).
6. atlapulgite serialization preparation system as claimed in claim 1, is characterized in that: described drying kiln (63) also comprises inner heat-insulation layer (614) and outside surrounding layer (615).
7. atlapulgite serialization preparation system as claimed in claim 6, it is characterized in that: described drying kiln (63) is Horizontal cylinder body, inwall is evenly distributed with at least one group of lifting blade (613) vertically, and the adjacent lifting blade on the same cross section of inwall is different from the angle of described drying kiln (63) tangential direction; Drying kiln (63) is and is in tilted layout, and feed end (66) is higher than exhaust end (67), and gradient is between 1～10 degree; The feed end (66) of drying kiln (63) is provided with charging motor (68); On hot-blast stove (62), be provided with into coal motor (69); Charging motor (68), enter the upper thermometer (616) arranging of coal motor (69), drying kiln (63) and connect controller (610); Hot-blast stove (62) is reciprocating fire grate combustion furnace; Feed end (66) mouth of drying kiln (63) is provided with lock wind spiral reamer (61); The feed end (66) of drying kiln (63) is also provided with cyclone collector (64) and sack cleaner (65).
8. atlapulgite serialization preparation system as claimed in claim 1, it is characterized in that: described scratch system (7), comprise pay-off (71), the Raymond machine (72) joining with pay-off (71), Raymond machine (72) arranges cyclone separator (73) and collects the atlapulgite after abrasive dust, is also provided with afterwards sack cleaner (74) is set.
9. atlapulgite serialization preparation system as claimed in claim 1, it is characterized in that: the spent acid that atlapulgite is crossed in the rinsing that described press filteration system (5) and rinse-system (4) produce is connected to spent acid treatment system (8) by pipeline, described spent acid treatment system (8), comprise spent acid treatment pond (81), spent acid treatment pond (81) bottom arranges pipeline and connects spent acid and process filter press (82), conveyer belt is set below filter press to be sent to dryer (83).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136573.2A CN103252208B (en) | 2013-04-18 | 2013-04-18 | System for continuously preparing activated clay |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136573.2A CN103252208B (en) | 2013-04-18 | 2013-04-18 | System for continuously preparing activated clay |
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| CN103252208A CN103252208A (en) | 2013-08-21 |
| CN103252208B true CN103252208B (en) | 2014-11-12 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008227A (en) * | 1989-05-16 | 1991-04-16 | Engelhard Corporation | Process for making acid activated bleaching earth using high susceptibility source clay and novel bleaching earth product |
| US5008226A (en) * | 1989-05-16 | 1991-04-16 | Engelhard Corporation | Process for making acid activated bleaching earth using high susceptibility source clay and novel bleaching earth product |
| ATE142905T1 (en) * | 1989-05-16 | 1996-10-15 | Engelhard Corp | METHOD FOR PRODUCING ACID-ACTIVATED BLEACHING EARTH |
| CN101462733A (en) * | 2009-01-13 | 2009-06-24 | 安徽膨润矿业科技有限公司 | Active clay and preparation thereof |
| CN101580245A (en) * | 2009-05-31 | 2009-11-18 | 苏州中材非金属矿工业设计研究院有限公司 | Method for preparing active floridin through microwave activation |
| CN203264723U (en) * | 2013-04-18 | 2013-11-06 | 黄山市白岳活性白土有限公司 | Continuous preparation system for activated clay |
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2013
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Denomination of invention: A continuous preparation system of activated clay Effective date of registration: 20220726 Granted publication date: 20141112 Pledgee: Huizhou Commercial Bank Co.,Ltd. Xiuning Branch Pledgor: HUANGSHAN BAIYUE ACTIVATED CLAY Co.,Ltd. Registration number: Y2022980011214 |
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Date of cancellation: 20231130 Granted publication date: 20141112 Pledgee: Huizhou Commercial Bank Co.,Ltd. Xiuning Branch Pledgor: HUANGSHAN BAIYUE ACTIVATED CLAY Co.,Ltd. Registration number: Y2022980011214 |
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Denomination of invention: A continuous preparation system for active clay Effective date of registration: 20231208 Granted publication date: 20141112 Pledgee: Huizhou Commercial Bank Co.,Ltd. Xiuning Branch Pledgor: HUANGSHAN BAIYUE ACTIVATED CLAY Co.,Ltd. Registration number: Y2023980070180 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Granted publication date: 20141112 Pledgee: Huizhou Commercial Bank Co.,Ltd. Xiuning Branch Pledgor: HUANGSHAN BAIYUE ACTIVATED CLAY Co.,Ltd. Registration number: Y2023980070180 |
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Denomination of invention: A continuous preparation system for active clay Granted publication date: 20141112 Pledgee: China Construction Bank Corporation Xiuning Branch Pledgor: HUANGSHAN BAIYUE ACTIVATED CLAY Co.,Ltd. Registration number: Y2024980015727 |