CN107686334A - A kind of phosphogypsum powder flyash haydite and preparation method thereof - Google Patents
A kind of phosphogypsum powder flyash haydite and preparation method thereof Download PDFInfo
- Publication number
- CN107686334A CN107686334A CN201710876538.2A CN201710876538A CN107686334A CN 107686334 A CN107686334 A CN 107686334A CN 201710876538 A CN201710876538 A CN 201710876538A CN 107686334 A CN107686334 A CN 107686334A
- Authority
- CN
- China
- Prior art keywords
- flyash
- haydite
- clay
- ardealite
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/135—Combustion residues, e.g. fly ash, incineration waste
- C04B33/1352—Fuel ashes, e.g. fly ash
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The present invention relates to ardealite ceramic particle technology field, especially a kind of phosphogypsum powder flyash haydite and preparation method thereof, using substantial amounts of ardealite as raw material, and add clay, flyash, it is improved by clay is carried out into mixed grinding using urea phosphate into powder, the density and intensity of the effective haydite for prepare, improves haydite quality, so that ardealite application is expanded, ardealite utilization rate is improved.
Description
Technical field
The present invention relates to ardealite ceramic particle technology field, especially a kind of phosphogypsum powder flyash haydite and preparation method thereof.
Background technology
Ardealite is the main solid waste of China's phosphate fertilizer industry, and main component is dihydrate gypsum and semi-hydrated gypsum.According to
Incomplete statistics, China's ardealite year total emission volumn exceed fifty-five million ton butt amount, and it is 2.5 hundred million tons to add up volume of cargo in storage.With me
The development of state's high concentration phosphate fertilizer, the discharge capacity of ardealite will be increasing, not only causes serious environmental pollution, also turns into
The significant problem of sulphur dioxide of phosphor chemical industry Faced In Sustainable Development.Therefore, ardealite is effectively treated, it is very urgent.
Flyash, is the fine ash that catching is got off from the flue gas after coal combustion, and flyash is the main of coal-burning power plant's discharge
Solid waste.The oxide of flyash forms:SiO2、Al2O3And a small amount of FeO, Fe2O3、CaO、MgO、SO3、TiO2Deng.Its
Middle SiO2And Al2O3Content can account for more than the 60% of total content.Flyash is one of larger industrial residue of the current discharge capacity in China,
With the development of power industry, the flyash discharge capacity of coal-burning power plant increases year by year.Substantial amounts of flyash is untreated, will produce
Raw airborne dust, pollutes air;River can be caused to silt up if being discharged into water system, and toxic chemical substance therein can also be to human body and biology
Damage.
Haydite is the particle of ceramic, and surface is one layer of hard shell, and this layer of shell is in ceramic or enamel, and there is water proof to protect
Gas acts on, and assigns haydite higher intensity.It is 25 ㎜ that the particle diameter of haydite, which is generally the maximum particle diameters of 5~20 ㎜,.Haydite one
As be used for substituting rubble and cobble in concrete.
In the prior art, it is ardealite, flyash etc. is relatively more to prepare the investigative technique of haydite as raw material, but greatly
Majority is all to be added ardealite, flyash in primary raw material in a manner of additive, and then prepares haydite so that right
Ardealite, the utilization rate of flyash are relatively low;Haydite largely is prepared using ardealite even if having, and obtains the technology of other products
Scheme produces, and its purpose is not directly to prepare haydite as raw material using ardealite, in turn results in ardealite and prepares haydite
Cost it is higher, energy consumption is larger.
Based on this, this researcher passes through carries out rational proportion design to ardealite and flyash, with reference to other raw materials into
The addition and processing divided, and the processing step and parameter of haydite preparation process are defined, prepare haydite skill for ardealite
Art field provides a kind of new approaches.
The content of the invention
In order to solve above-mentioned technical problem present in prior art, the present invention provide a kind of phosphogypsum powder flyash haydite and
Its preparation method.
It is achieved particular by following technical scheme:
A kind of phosphogypsum powder flyash haydite, material composition are ardealite 50-80 parts in parts by weight, clay 5-10 parts, powder
Coal ash 8-12 parts, wherein clay are the powder formed with urea phosphate mixed grinding.
Described material composition is 60 parts of ardealite in parts by weight, 8 parts of clay, 10 parts of flyash.
Described clay, the mass ratio mixed with urea phosphate are 1:0.1-0.4.
Described grinding, process of lapping, which adds, the water for accounting for clay quality 11-15%, and after the completion of grinding, is placed in temperature
Spend to handle 10-20min at 60-80 DEG C, sieve, be dried to constant weight.
Described sieving was the sieve of 80 mesh.
Described flyash, component content are SiO by percentage to the quality240-50%, Al2O310-20%, FeO0.2-
3%th, Fe2O38-15%, CaO2-7%, MgO6-9%, TiO23-8%, total amount 100%.
Described flyash, component content are SiO by percentage to the quality246%th, Al2O317%th, FeO3%,
Fe2O313%th, CaO7%, MgO7%, TiO27%.
Above-mentioned phosphogypsum powder flyash haydite preparation method, comprises the following steps:
(1) ardealite is dried to constant weight, adds flyash and be ground to 40-200 mesh, add clay powders, stir,
Adjustment moisture is 20-30%, obtains mixed-powder;
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 2-10mm of particle, then be placed on 40-
Under conditions of 200 DEG C, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, are obtained
To haydite.
Compared with prior art, the technique effect of the invention is embodied in:
By clay is used into the mixed and modified processing of urea phosphate, rational proportion design is carried out with ardealite, flyash, and
It is prepared into haydite so that the haydite density of preparation significantly improves, and the intensity of haydite is greatly enhanced,
Test by detection, as a result show, the invention haydite density is 337~415kg/m3, and is rolled by roller, and haydite is strong
Degree has reached 9-11MPa.
Embodiment
Limited with reference to specific embodiment technical scheme is further, but claimed
Scope is not only limited to made description.
Embodiment 1
Phosphogypsum powder flyash haydite, material composition are ardealite 50kg, clay 5kg, flyash 8kg by weight, wherein
Clay is using mass ratio as 1 with urea phosphate:The powder that 0.1 mixed grinding forms.
Phosphogypsum powder flyash haydite preparation method, comprises the following steps:
(1) ardealite is dried to constant weight, adds flyash and be ground to 40 mesh, add clay powders, stir, adjust
Moisture is 20%, obtains mixed-powder;
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 2mm of particle, then be placed on 40 DEG C
Under the conditions of, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, obtain haydite.
Embodiment 2
Phosphogypsum powder flyash haydite, material composition are ardealite 80kg, clay 10kg, flyash 12kg by weight, its
Middle clay is using mass ratio as 1 with urea phosphate:The powder that 0.4 mixed grinding forms.Described flyash, component content is with quality
Percentages are SiO240%th, Al2O320%th, FeO2%, Fe2O315%th, CaO7%, MgO8%, TiO28%.
Phosphogypsum powder flyash haydite preparation method, comprises the following steps:
(1) ardealite is dried to constant weight, adds flyash and be ground to 100 mesh, add clay powders, stir, adjust
Whole moisture is 25%, obtains mixed-powder;
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 8mm of particle, then be placed on 100 DEG C
Under the conditions of, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, obtain haydite.
Embodiment 3
Phosphogypsum powder flyash haydite, material composition are ardealite 60kg, clay 8kg, flyash 10kg by weight, wherein
Clay is using mass ratio as 1 with urea phosphate:The powder that 0.3 mixed grinding forms.Process of lapping adds and accounts for clay quality 14%
Water, and after the completion of grinding, be placed in temperature to handle 15min at 70 DEG C, cross 80 mesh sieves, be dried to constant weight.Described fine coal
Ash, component content are SiO by percentage to the quality250%th, Al2O315%th, FeO1%, Fe2O312%th, CaO6%, MgO8%,
TiO28%.
Phosphogypsum powder flyash haydite preparation method, comprises the following steps:
(1) ardealite is dried to constant weight, adds flyash and be ground to 200 mesh, add clay powders, stir, adjust
Whole moisture is 30%, obtains mixed-powder;
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 10mm of particle, then be placed on 200 DEG C
Under conditions of, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, are made pottery
Grain.
Embodiment 4
Phosphogypsum powder flyash haydite, material composition are ardealite 50kg, clay kg, flyash 9kg by weight, wherein viscous
Soil is using mass ratio as 1 with urea phosphate:The powder that 0.3 mixed grinding forms.Process of lapping, which adds to have, accounts for clay quality 12%
Water, and after the completion of grinding, it is that 20min is handled at 80 DEG C to be placed in temperature, crosses 80 mesh sieves, is dried to constant weight.Described flyash,
Component content is SiO by percentage to the quality249%th, Al2O310%th, FeO3%, Fe2O315%th, CaO6%, MgO9%,
TiO28%.
Phosphogypsum powder flyash haydite preparation method, comprises the following steps:
(1) ardealite is dried to constant weight, adds flyash and be ground to 40 mesh, add clay powders, stir, adjust
Moisture is 20%, obtains mixed-powder;
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 10mm of particle, then be placed on 40 DEG C
Under the conditions of, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, obtain haydite.
Embodiment 5
Phosphogypsum powder flyash haydite, material composition are ardealite 80kg, clay 5kg, flyash 8kg by weight, wherein
Clay is using mass ratio as 1 with urea phosphate:The powder that 0.1 mixed grinding forms.Process of lapping adds and accounts for clay quality 15%
Water, and after the completion of grinding, be placed in temperature to handle 10min at 60 DEG C, cross 80 mesh sieves, be dried to constant weight.Described fine coal
Ash, component content are SiO by percentage to the quality246%th, Al2O317%th, FeO3%, Fe2O313%th, CaO7%, MgO7%,
TiO27%.
Phosphogypsum powder flyash haydite preparation method, comprises the following steps:
(1) ardealite is dried to constant weight, adds flyash and be ground to 40 mesh, add clay powders, stir, adjust
Moisture is 30%, obtains mixed-powder;
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 9mm of particle, then be placed on 100 DEG C
Under the conditions of, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, obtain haydite.
Enter line density and roller rolling compression strength detection to the embodiment 1-5 haydites prepared, as a result as shown in table 1:
Table 1
By the data of upper table 1 show it can be seen from the invention the substantial amounts of ardealite of use as raw material, and add viscous
Soil, flyash, by clay is carried out into mixed grinding into powder using urea phosphate, the density of the effective haydite for prepare with
And intensity is improved, haydite quality is improved so that ardealite application is expanded, and improves ardealite utilization
Rate.
Claims (8)
1. a kind of phosphogypsum powder flyash haydite, it is characterised in that material composition is ardealite 50-80 parts in parts by weight, clay
5-10 parts, wherein flyash 8-12 parts, clay are the powder formed with urea phosphate mixed grinding.
2. phosphogypsum powder flyash haydite as claimed in claim 1, it is characterised in that described material composition is in parts by weight
60 parts of ardealite, 8 parts of clay, 10 parts of flyash.
3. phosphogypsum powder flyash haydite as claimed in claim 1, it is characterised in that described clay, mixed with urea phosphate
Mass ratio is 1:0.1-0.4.
4. phosphogypsum powder flyash haydite as claimed in claim 1, it is characterised in that described grinding, process of lapping, which adds, to be had
Clay quality 11-15% water is accounted for, and after the completion of grinding, it is to handle 10-20min at 60-80 DEG C to be placed in temperature, sieves, dries
Do to constant weight.
5. phosphogypsum powder flyash haydite as claimed in claim 4, it is characterised in that described sieving was the sieve of 80 mesh.
6. phosphogypsum powder flyash haydite as claimed in claim 1, it is characterised in that described flyash, component content is with matter
Amount percentages are SiO240-50%, Al2O310-20%, FeO0.2-3%, Fe2O38-15%, CaO2-7%, MgO6-
9%th, TiO23-8%, total amount 100%.
7. the phosphogypsum powder flyash haydite as described in claim 1 or 6, it is characterised in that described flyash, component content with
Mass percent is calculated as SiO246%th, Al2O317%th, FeO3%, Fe2O313%th, CaO7%, MgO7%, TiO27%.
8. the phosphogypsum powder flyash haydite preparation method as described in claim any one of 1-7, it is characterised in that including following step
Suddenly:
(1) ardealite is dried to constant weight, adds flyash and be ground to 40-200 mesh, add clay powders, stir, adjust
Moisture is 20-30%, obtains mixed-powder;
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 2-10mm of particle, then be placed on 40-200 DEG C
Under conditions of, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, are made pottery
Grain.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710876538.2A CN107686334B (en) | 2017-09-25 | 2017-09-25 | Phosphogypsum fly ash ceramsite and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710876538.2A CN107686334B (en) | 2017-09-25 | 2017-09-25 | Phosphogypsum fly ash ceramsite and preparation method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107686334A true CN107686334A (en) | 2018-02-13 |
CN107686334B CN107686334B (en) | 2020-06-26 |
Family
ID=61156562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710876538.2A Expired - Fee Related CN107686334B (en) | 2017-09-25 | 2017-09-25 | Phosphogypsum fly ash ceramsite and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107686334B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114890701A (en) * | 2022-05-09 | 2022-08-12 | 成都理工大学 | Environment-friendly economical ceramsite for plateau building concrete and preparation method and application thereof |
CN115215678A (en) * | 2022-05-19 | 2022-10-21 | 湖北省长江资源循环利用及装备创新中心有限公司 | Organic slag clay light ceramsite produced by flotation of phosphogypsum and preparation method thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104231890A (en) * | 2014-08-27 | 2014-12-24 | 南京市荣达树脂有限公司 | flame retardant coating for cars and preparation method thereof |
CN106083156A (en) * | 2016-06-28 | 2016-11-09 | 平凉华晨非金属应用科技有限公司 | Desulfurated plaster lightweight through hole haydite |
CN106116496A (en) * | 2016-06-28 | 2016-11-16 | 平凉华晨非金属应用科技有限公司 | Phosphogypsum light through hole haydite |
CN107674455A (en) * | 2017-08-30 | 2018-02-09 | 贵州紫云月华新材料有限公司 | A kind of calcium carbonate modifier and its method of modifying |
-
2017
- 2017-09-25 CN CN201710876538.2A patent/CN107686334B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104231890A (en) * | 2014-08-27 | 2014-12-24 | 南京市荣达树脂有限公司 | flame retardant coating for cars and preparation method thereof |
CN106083156A (en) * | 2016-06-28 | 2016-11-09 | 平凉华晨非金属应用科技有限公司 | Desulfurated plaster lightweight through hole haydite |
CN106116496A (en) * | 2016-06-28 | 2016-11-16 | 平凉华晨非金属应用科技有限公司 | Phosphogypsum light through hole haydite |
CN107674455A (en) * | 2017-08-30 | 2018-02-09 | 贵州紫云月华新材料有限公司 | A kind of calcium carbonate modifier and its method of modifying |
Non-Patent Citations (1)
Title |
---|
温辉梁: "《饲料添加剂生产技术与配方》", 31 December 2009, 南昌:江西科学技术出版社 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114890701A (en) * | 2022-05-09 | 2022-08-12 | 成都理工大学 | Environment-friendly economical ceramsite for plateau building concrete and preparation method and application thereof |
CN115215678A (en) * | 2022-05-19 | 2022-10-21 | 湖北省长江资源循环利用及装备创新中心有限公司 | Organic slag clay light ceramsite produced by flotation of phosphogypsum and preparation method thereof |
CN115215678B (en) * | 2022-05-19 | 2023-07-25 | 湖北省长江资源循环利用及装备创新中心有限公司 | Organic residue clay light ceramsite of phosphogypsum product and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
CN107686334B (en) | 2020-06-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN114292124A (en) | Ceramsite fired by fly ash and preparation method and application thereof | |
CN111675549B (en) | Resource utilization method of hexavalent chromium contaminated soil | |
CN107488019A (en) | A kind of non-sintered gold tailings brick and its preparation technology | |
CN110041051A (en) | A kind of river bottom mud and construction slurry haydite and preparation method thereof | |
CN102329119A (en) | High performance concrete admixture and preparation method thereof | |
CN107686334A (en) | A kind of phosphogypsum powder flyash haydite and preparation method thereof | |
CN101775868B (en) | Method for sintering and curing industrial waste residue | |
CN113800941B (en) | Method for preparing ceramsite by utilizing chromium-contaminated soil and ceramsite | |
CN108892479A (en) | A kind of shell sewage sludge sintering haydite and preparation method thereof | |
CN103011707A (en) | Building ceramsite and preparation method thereof | |
JPWO2006098202A1 (en) | Fired product | |
CN107140945A (en) | It is a kind of to utilize the compound high strength porcelain architectural pottery Antique Imitation Tiles prepared of two kinds of waste residues | |
CN101913842B (en) | Baked light-weight environmental-friendly bricks prepared from paper mill sludge and manufacturing method thereof | |
KR100873872B1 (en) | Method for producing lightweight aggregates of aggregate with crushed aggregate by-products and bottom ash mixture | |
CN107473763A (en) | A kind of sewage water filtration ardealite haydite and preparation method thereof | |
WO2022207036A1 (en) | Binder for building materials, method for production thereof and plant for carrying out this method | |
CN103553466A (en) | FGD (flue gas desulfurization) desulfurized fly ash solidifying agent and preparation method thereof | |
Olofinnade et al. | Reuse of pulverized fired clay brick wastes as cement substitute in mortar for sustainable construction | |
JP4283701B2 (en) | Calcium sulfide manufacturing method, ground improvement material manufacturing method, and processing object processing method | |
CN101565291B (en) | Method for fixing sulfur for baked brick of high-sulfur coal gangue | |
TWI638794B (en) | Environmentally friendly hardener and their preparation | |
CN105753412B (en) | A kind of preparation method of the low concrete of low energy consumption, cement consumption | |
CN116003102B (en) | Method for preparing sintered brick by using heavy metal contaminated soil | |
CN116396059B (en) | Method for preparing ceramsite by using chromium-containing waste residues and printing and dyeing sludge and product thereof | |
CN110950642A (en) | Industrial waste residue sintered brick and preparation method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 Termination date: 20210925 |