CN106082927B - A kind of alkali-activated slag system geopolymer concrete and preparation method thereof - Google Patents

A kind of alkali-activated slag system geopolymer concrete and preparation method thereof Download PDF

Info

Publication number
CN106082927B
CN106082927B CN201610439937.8A CN201610439937A CN106082927B CN 106082927 B CN106082927 B CN 106082927B CN 201610439937 A CN201610439937 A CN 201610439937A CN 106082927 B CN106082927 B CN 106082927B
Authority
CN
China
Prior art keywords
parts
alkali
slag
sodium hydroxide
geopolymer concrete
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.)
Active
Application number
CN201610439937.8A
Other languages
Chinese (zh)
Other versions
CN106082927A (en
Inventor
刘琼
徐双立
徐东升
曹丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Debin Environmental Protection Technology Co.,Ltd.
Original Assignee
Nanjing Shore Environmental Protection Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Shore Environmental Protection Technology Co Ltd filed Critical Nanjing Shore Environmental Protection Technology Co Ltd
Priority to CN201610439937.8A priority Critical patent/CN106082927B/en
Publication of CN106082927A publication Critical patent/CN106082927A/en
Application granted granted Critical
Publication of CN106082927B publication Critical patent/CN106082927B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26Silicates of the alkali metals
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

Abstract

The present invention provides a kind of alkali-activated slag system geopolymer concrete, the composite granule cementitious material being made of slag powders and construction refuse regenerated micro mist obtains under the excitation of the water glass solution of sodium hydroxide;The alkali-activated slag system geopolymer concrete is made of the component of following parts by weight:150 210 parts of slag powders, 20 60 parts of construction refuse regenerated micro mist, 190 240 parts of waterglass, 25 50 parts of solid sodium hydroxide, 400 700 parts of sand, 0 1600 parts of coarse aggregate.The alkali-activated slag system geopolymer concrete is made of raw materials such as slag powders, construction refuse regenerated micro mist, waterglass, solid sodium hydroxide, fine aggregate, coarse aggregates, have the advantages that good early strengthening and high strengthening, durability, high temperature resistant, good corrosion resistance, heat-proof quality is good, energy consumption is low etc., be a kind of low cost and high performance green building material.

Description

A kind of alkali-activated slag system geopolymer concrete and preparation method thereof
Technical field
The present invention relates to building material field, more particularly to a kind of alkali-activated slag system geopolymer concrete and its preparation Method.
Background technology
Construction refuse resource industry technology path common at present in China's is that building waste is processed into regenerated coarse aggregate And recycled fine aggregate, be then applied, but due in China's building waste waste and old sintered clay brick content it is very big, clay brick Intensity low porosity is high, and the recycled aggregate produced is difficult to be up to state standards the technical indicator of requirement, this is that current China is built The bottleneck problem that building refuse recycling industry encounters.If the building waste that will be enriched in sintered clay brick is milled into micro mist, keep away The low disadvantage of its intensity is exempted from, simultaneously because indefinite form content of material is high in sintered clay brick, micro mist can give full play to its work The good advantage of property.So in recent years, construction refuse regenerated micro mist becomes a research hotspot.
Alkali-activated carbonatite cementitious material is a kind of novel inorganic nonmetallic materials that new development in recent years is got up, it is by aluminium silicon Dissolving, dispersion, polymerization and the dehydration of hydrochlorate component are hardened, and are in three-dimensional net structure in mineral composition physical aspect, because This its excellent performance with organic polymer, ceramics, cement.Its major advantage includes:(1) intensity is high, main mechanical properties Index is better than glass and cement, can compare favourably with metal materials such as ceramics, aluminium, steel;(2) with stronger corrosion resistance and preferably Durability, be significantly better than conventional cement material;(3) there is preferable fast hard solidification;(4) material high temperature resistant, heat insulation It is good;(5) low in raw material price, rich reserves, main composition elemental silicon, aluminium, the oxygen reserves in the earth's crust are respectively 27%, 8%, 47%;(6) permeability is low, and toxic waste can be cured, and the permeability resistance of geopolymer is better than Portland cement, can be used for solid Seal toxic metals and level radioactive nuclear waste.Construction refuse regenerated micro mist is applied to the preparation of alkali-activated carbonatite cementitious material, on the one hand Waste can be efficiently used, reduces environmental pressure, on the other hand can substantially reduce alkali-activated carbonatite cementitious material production cost, this is existing Have in technology and has not been reported.
Invention content
Technical problem:In view of the above problem, the present invention provides a kind of alkali-activated slag system geopolymer concrete and Preparation method, the concrete are by slag powders, construction refuse regenerated micro mist, waterglass, sodium hydroxide, fine aggregate, coarse aggregate Equal raw materials are made, and have that good durability, high temperature resistant, early strengthening and high strengthening, that good corrosion resistance, heat-proof quality is good, energy consumption is low etc. is excellent Point is a kind of low cost and high performance green building material.
Technical solution:In order to solve the defects of prior art, the present invention provides a kind of alkali-activated slag system geopolymers Concrete, the composite granule cementitious material being made of slag powders and construction refuse regenerated micro mist, in the waterglass of sodium hydroxide It is obtained under the excitation of solution;The alkali-activated slag system geopolymer concrete is made of the component of following parts by weight:Mine 150-210 parts of ground-slag, construction refuse regenerated micro mist 20-60 parts, 190-240 parts of waterglass, 25-50 parts of solid sodium hydroxide, sand It is 400-700 parts sub-, 0-1600 parts of coarse aggregate.
Preferably, the alkali-activated slag system geopolymer concrete is made of the component of following parts by weight:Slag powders 160-180 parts, construction refuse regenerated micro mist 20-40 parts, 200-220 parts of waterglass, 30-40 parts of solid sodium hydroxide, sand 500-600 parts, 800-1200 parts of coarse aggregate.
It is highly preferred that the alkali-activated slag system geopolymer concrete is made of the component of following parts by weight:Slag powders 210 parts, 20 parts of construction refuse regenerated micro mist, 400 parts of sand, 240 parts of waterglass, 50 parts of solid sodium hydroxide.
Preferably, the slag powders are S95 grades or S105 grade slag powders.
As another preferred embodiment, the construction refuse regenerated micro mist is RF grades of regenerative micro powders.
As another preferred embodiment, the modulus of the waterglass is 2.0-3.3.
As another preferred embodiment, the sodium hydroxide is the solid particle that purity is higher than 95%.
The present invention also provides the preparation methods of above-mentioned alkali-activated slag system geopolymer concrete, include the following steps:
1) slag powders, construction refuse regenerated micro mist, sand, coarse aggregate are obtained into siccative according to proportioning mixing;
2) solid sodium hydroxide is dissolved according to proportioning in waterglass, obtains the water glass solution dissolved with sodium hydroxide;
3) the step 2) water glass solution obtained dissolved with sodium hydroxide is added in siccative made from step 1), is mixed It is even;
4) product of step 3) is poured, overlay film maintenance to get.
Advantageous effect:Alkali-activated slag system geopolymer concrete provided by the invention be by slag powders, building waste again The raw materials such as raw micro mist, waterglass, solid sodium hydroxide, fine aggregate, coarse aggregate are made, and have that early strengthening and high strengthening, durability be good, resistance to height The advantages such as temperature, good corrosion resistance, heat-proof quality are good, energy consumption is low are a kind of low cost and high performance green building materials.
Slag powders and construction refuse regenerated micro mist are used for alkali-activated carbonatite geopolymer by the present invention, compared with the existing technology, tool There is advantage following prominent:
First, slag powders are trade waste, regenerative micro powder then comes from building castoff, utilizes slag powders and building waste Regenerative micro powder makes the technology have the advantages that environmental protection and waste utilization;
Second, slag powders and construction refuse regenerated micro mist all have high activity, sodium hydroxide water glass solution swash Lower quick solidifying, the intensity of breaking out are high, so as to prepare the concrete material of high-quality;
Third, the present invention, by the way of alkali-activated carbonatite, the opposite class cementitious material that is sintered also there is energy saving and reduction to have The advantage of malicious noxious gas emission.
Specific implementation mode
For a further understanding of the present invention, with reference to embodiment to alkali-activated slag system provided by the invention geopolymer Concrete and preparation method thereof illustrates, and protection scope of the present invention is not limited by the following examples.
Slag powders:Purchased from upper Hypon field miberal powder Co., Ltd;
Construction refuse regenerated micro mist:RF grades of regenerative micro powders are purchased from Shanghai Debin Environmental Protection Technology Co., Ltd.;
Sodium hydroxide:Purity 95%, is purchased from Wuxi City Jing Ke Chemical Co., Ltd.s, and the sodium hydroxide of 95% or more purity is equal The object of the invention may be implemented.
Embodiment 1
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component:210 parts of S105 slag powders, building waste 20 parts of regenerative micro powder, 400 parts of sand, 240 parts of the waterglass of modulus 2.5,50 parts of solid sodium hydroxide.
Preparation method includes the following steps:
1) slag powders, construction refuse regenerated micro mist, sand, coarse aggregate are obtained into siccative according to proportioning mixing;
2) solid sodium hydroxide is dissolved according to proportioning in waterglass, obtains the water glass solution dissolved with sodium hydroxide;
3) the step 2) water glass solution obtained dissolved with sodium hydroxide is added in siccative made from step 1), is mixed It is even;
4) product of step 3) is poured, overlay film maintenance to get.
Configure obtained alkali-activated slag system geopolymer concrete its 28 days compression strength 106MPa;3 days compression strength Reach 65MPa, can be used for rapid construction.
Embodiment 2
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component:160 parts of S105 slag powders, building waste 40 parts of regenerative micro powder, 400 parts of sand, 240 parts of the waterglass of modulus 2.0,40 parts of solid sodium hydroxide.
Preparation method is same as Example 1.
Obtained its 28 days compression strength 75MPa of alkali-activated slag system geopolymer concrete are configured, compression strength reaches within 3 days To 43MPa.
Embodiment 3
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component:150 parts of S95 slag powders, building waste 60 parts of regenerative micro powder, 400 parts of sand, 240 parts of the waterglass of modulus 3.3,40 parts of solid sodium hydroxide.
Preparation method is same as Example 1.
Obtained its 28 days compression strength 76MPa of alkali-activated slag system geopolymer concrete are configured, compression strength reaches within 3 days To 42MPa.
Embodiment 4
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component:180 parts of S105 slag powders, building waste 30 parts of regenerative micro powder, 700 parts of sand, 190 parts of the waterglass of modulus 2.5,25 parts of solid sodium hydroxide.
Preparation method is same as Example 1.
Obtained its 28 days compression strength 75MPa of alkali-activated slag system geopolymer concrete are configured, compression strength reaches within 3 days To 40MPa.
Embodiment 5
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component:180 parts of S105 slag powders, building waste 30 parts of regenerative micro powder, 500 parts of sand, 220 parts of the waterglass of modulus 3.0,35 parts of solid sodium hydroxide, 1600 parts of coarse aggregate.
Preparation method is same as Example 1.
Obtained its 28 days compression strength 79MPa of alkali-activated slag system geopolymer concrete are configured, compression strength reaches within 3 days To 45MPa.
Embodiment 6
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component:190 parts of S105 slag powders, building waste 60 parts of regenerative micro powder, 550 parts of sand, 210 parts of the waterglass of modulus 2.7,45 parts of solid sodium hydroxide, 800 parts of coarse aggregate.
Preparation method is same as Example 1.
Obtained its 28 days compression strength 75MPa of alkali-activated slag system geopolymer concrete are configured, compression strength reaches within 3 days To 46MPa.
Embodiment 7
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component:180 parts of S105 slag powders, building waste 30 parts of regenerative micro powder, 500 parts of sand, 220 parts of the waterglass of modulus 2.5,35 parts of solid sodium hydroxide, 1200 parts of coarse aggregate.
Preparation method is same as Example 1.
Obtained its 28 days compression strength 72MPa of alkali-activated slag system geopolymer concrete are configured, compression strength reaches within 3 days To 41MPa.
Comparative example 1
Concrete comparative example 1, composition of raw materials include component:210 parts of S95 slag powders, 400 parts of sand, the water of modulus 2.5 240 parts of glass, 50 parts of solid sodium hydroxide.
Obtained its 28 days compression strength 65MPa of alkali-activated slag system geopolymer concrete are configured, compression strength reaches within 3 days To 32MPa.
Comparative example 2
Concrete comparative example 2, composition of raw materials include component:210 parts of construction refuse regenerated micro mist, 400 parts of sand, modulus 240 parts of 2.5 waterglass, 50 parts of solid sodium hydroxide.
Obtained its 28 days compression strength 19MPa of alkali-activated carbonatite geopolymer concrete are configured, compression strength reaches within 3 days
11MPa。
Comparative example 3
Concrete comparative example 3, composition of raw materials include component:210 parts of cement marked as 525,400 parts of sand, water 100 Part.
Obtained its 28 days compression strength 50MPa of cement concrete are configured, compression strength reaches 23MPa within 3 days.
Comparative example 4
Concrete comparative example 4, composition of raw materials include component:150 parts of the calcium lime powder of 95% or more purity, regenerative micro powder 60 parts, 400 parts of sand, 100 parts of water.
Obtained its 28 days compression strength 15MPa of two ash stability concrete are configured, compression strength reaches 8MPa within 3 days.
Comparative example 5
Concrete comparative example 5, composition of raw materials include component:150 parts of cement marked as 525,60 parts of regenerative micro powder, sand 400 parts of son, 100 parts of water.
Obtained its 28 days compression strength 40MPa of alkali-activated slag system geopolymer concrete are configured, compression strength reaches within 3 days To 19MPa.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.

Claims (3)

1. a kind of alkali-activated slag system geopolymer concrete, it is characterised in that:It is by slag powders and construction refuse regenerated micro mist The composite granule cementitious material of composition, obtains under the excitation of the water glass solution of sodium hydroxide;The alkali-activated slag It is that geopolymer concrete is made of the component of following parts by weight:210 parts of S105 slag powders, 20 parts of construction refuse regenerated micro mist, 400 parts of sand, 240 parts of the waterglass of modulus 2.5,50 parts of solid sodium hydroxide.
2. a kind of alkali-activated slag system geopolymer concrete according to claim 1, it is characterised in that:The hydroxide Sodium is the solid particle that purity is higher than 95%.
3. the preparation method of claim 1 to 2 any one of them alkali-activated slag system geopolymer concrete, feature exist In:Include the following steps:
(1)By slag powders, construction refuse regenerated micro mist, sand according to proportioning mixing, siccative is obtained;
(2)Solid sodium hydroxide is dissolved according to proportioning in waterglass, the water glass solution dissolved with sodium hydroxide is obtained;
(3)By step 2)Step 1 is added in water glass solution obtained dissolved with sodium hydroxide)In siccative obtained, mixing;
(4)The product of step 3) is poured, overlay film maintenance to get.
CN201610439937.8A 2016-06-17 2016-06-17 A kind of alkali-activated slag system geopolymer concrete and preparation method thereof Active CN106082927B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610439937.8A CN106082927B (en) 2016-06-17 2016-06-17 A kind of alkali-activated slag system geopolymer concrete and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610439937.8A CN106082927B (en) 2016-06-17 2016-06-17 A kind of alkali-activated slag system geopolymer concrete and preparation method thereof

Publications (2)

Publication Number Publication Date
CN106082927A CN106082927A (en) 2016-11-09
CN106082927B true CN106082927B (en) 2018-07-17

Family

ID=57236930

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610439937.8A Active CN106082927B (en) 2016-06-17 2016-06-17 A kind of alkali-activated slag system geopolymer concrete and preparation method thereof

Country Status (1)

Country Link
CN (1) CN106082927B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107382358A (en) * 2017-07-24 2017-11-24 重庆大学 It is a kind of suitable for permeable alkali-slag concrete of Supporting Load Pavement and preparation method thereof
CN108275971A (en) * 2017-10-24 2018-07-13 上海老港废弃物处置有限公司 A kind of preparation method of waste material of buildings base heat-barrier material
CN109400087A (en) * 2018-11-06 2019-03-01 安徽理工大学 A kind of method-Ca (OH) enhancing alkali-activated carbonatite concrete resisting carbonization2Inner blending method
CN112441809A (en) * 2018-12-17 2021-03-05 南京绿色增材智造研究院有限公司 Preparation method of ultrahigh-toughness alkali-activated shotcrete
CN109987900A (en) * 2019-04-23 2019-07-09 湖南云中再生科技股份有限公司 One kind is with building waste cementitious material as main component and preparation method thereof
CN110642582A (en) * 2019-09-29 2020-01-03 华北水利水电大学 Geopolymer-based concrete for block energy storage tower and preparation method thereof
CN111205021A (en) * 2020-01-13 2020-05-29 四川大学 Building waste regenerated composite admixture base polymer concrete
CN111548068A (en) * 2020-05-18 2020-08-18 福州大学 Single component recycled polymer cement concrete

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103601424A (en) * 2013-11-11 2014-02-26 长沙理工大学 Geopolymeric concrete based on recycled aggregate and preparation method of geopolymeric concrete
CN103787602A (en) * 2014-01-17 2014-05-14 北京奥润开元环保科技研究院有限公司 Superfine regeneration powder compound geopolymer cementing material
CN104402368A (en) * 2014-11-25 2015-03-11 沈阳建筑大学 Inorganic mineral polymer self-leveling mortar and preparation method thereof
CN104973848A (en) * 2015-07-02 2015-10-14 成都理工大学 Geopolymer fiber reinforced concrete and preparation method thereof
CN105541203A (en) * 2015-12-30 2016-05-04 浙江大学 Geopolymer-based thermal-insulation mortar dry powder and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103601424A (en) * 2013-11-11 2014-02-26 长沙理工大学 Geopolymeric concrete based on recycled aggregate and preparation method of geopolymeric concrete
CN103787602A (en) * 2014-01-17 2014-05-14 北京奥润开元环保科技研究院有限公司 Superfine regeneration powder compound geopolymer cementing material
CN104402368A (en) * 2014-11-25 2015-03-11 沈阳建筑大学 Inorganic mineral polymer self-leveling mortar and preparation method thereof
CN104973848A (en) * 2015-07-02 2015-10-14 成都理工大学 Geopolymer fiber reinforced concrete and preparation method thereof
CN105541203A (en) * 2015-12-30 2016-05-04 浙江大学 Geopolymer-based thermal-insulation mortar dry powder and preparation method thereof

Also Published As

Publication number Publication date
CN106082927A (en) 2016-11-09

Similar Documents

Publication Publication Date Title
CN104030634B (en) A kind of high-strength and high ductility RPC of carbon-doped nanometer tube and preparation method thereof
Reig et al. Properties and microstructure of alkali-activated red clay brick waste
Zhan et al. Experimental study on CO2 curing for enhancement of recycled aggregate properties
JP6370876B2 (en) Foam composite material, production method, and use thereof
Singh et al. Effect of activator concentration on the strength, ITZ and drying shrinkage of fly ash/slag geopolymer concrete
Santa et al. Geopolymer synthetized from bottom coal ash and calcined paper sludge
Ahmari et al. Production of eco-friendly bricks from copper mine tailings through geopolymerization
Corinaldesi et al. Behaviour of cementitious mortars containing different kinds of recycled aggregate
Asokan et al. Improvement of the mechanical properties of glass fibre reinforced plastic waste powder filled concrete
Sata et al. Properties of pervious geopolymer concrete using recycled aggregates
CN101580369B (en) Fiber reinforced high-strength mortar used for concrete structure repair
Rajamma et al. Alkali activation of biomass fly ash–metakaolin blends
CN106365578B (en) The method for preparing construction material using ardealite
CN106277952B (en) A method of it is prepared using sludge non-burning brick
CN105601199A (en) Expansive anti-crack fiber concrete and preparation method therefor
CN104058786B (en) A kind of high-performance aerated concrete material of construction utilizing barium slag and preparation method thereof
CN103319129B (en) Ecological nanoparticle reinforced cement based composite material and preparation method thereof
CN103159450B (en) Production method of foamed concrete block manufactured from steel slag
CN105731942A (en) Cement-based composite material used for 3D printing as well as preparation method and application thereof
CN103304193A (en) Lightweight aggregate foam concrete and production method thereof
CN100434382C (en) Plastic anti-crack modified fiber of cement-based material and prepn. process
KR20130009000A (en) Coal gangue ceramsite and its preparation approach
CN104640823B (en) Agglutination material, activator and the method for preparing concrete
CN104386969B (en) A kind of high-strength high-durability lightweight aggregate concrete and preparation method thereof
CN102424550B (en) Laterite slag baking-free brick and preparation method thereof

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
TR01 Transfer of patent right

Effective date of registration: 20210414

Address after: 201101 Room 203, 255 Wubao Road, Minhang District, Shanghai

Patentee after: Shanghai Debin Environmental Protection Technology Co.,Ltd.

Address before: 210046 room 0602, building C, Xingzhi Science Park, Xingzhi Road, Nanjing Economic and Technological Development Zone, Nanjing City, Jiangsu Province

Patentee before: NANJING DEBIN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd.