CN106698987B - A kind of Decomposition of Calcium Carbonate promotor - Google Patents
A kind of Decomposition of Calcium Carbonate promotor Download PDFInfo
- Publication number
- CN106698987B CN106698987B CN201611029457.0A CN201611029457A CN106698987B CN 106698987 B CN106698987 B CN 106698987B CN 201611029457 A CN201611029457 A CN 201611029457A CN 106698987 B CN106698987 B CN 106698987B
- Authority
- CN
- China
- Prior art keywords
- calcium carbonate
- decomposition
- promotor
- agent
- carbonate promotor
- 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
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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
- C04B7/42—Active ingredients added before, or during, the burning process
- C04B7/428—Organic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/606—Carbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Ceramic Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of Decomposition of Calcium Carbonate promotor, the Decomposition of Calcium Carbonate promotor include by weight percentage the potassium nitrate of 0.1-10%, the sodium nitrate of 0.1-5%, the waterglass of 0.1-15%, the bleeding agent of 3-12%, surplus be water.Decomposition of Calcium Carbonate promotor of the present invention is added into lime stone/cement slurry with few amount, can significantly improve the decomposition efficiency of calcium carbonate, to reduce production energy consumption.
Description
Technical field
The invention belongs to additive agent field more particularly to a kind of carbon applied to manufacture of cement or furnace sorbent injection desulfurization technology
Sour calcium decomposition accelerating agent.
Background technique
Decomposition of Calcium Carbonate occupies considerable status in cement industry and desulfurization technology.The either kiln of cement slurry
Outer predecomposition or the flue gas desulfurization of station boiler, main reaction is all CaCO in production process3Decomposition.For cement
Industry, CaCO3The case where decomposition, will directly affect the quality of clinker, for flue gas desulfurization, the activity of desulfurizing agent and final
Desulfurization effect effect also depend on CaCO3Decomposition situation.
Decomposition of Calcium Carbonate reaction is a highly endothermic process, and energy consumption is higher, and easily exists and decompose incomplete situation, although
The prior art has made a large amount of improvement to the equipment such as boiler and dore furnace to improve Decomposition of Calcium Carbonate efficiency, but improving equipment needs
Spend substantial contribution.
Industrially mainly promote the decomposition of calcium carbonate in a manner of adding mineralizer at present, typical mineralizer is calcirm-fluoride
(CaF2) and its compound, although the Decomposition of Calcium Carbonate that can promote, to improve yield and quality.But the incorporation of mineralizer,
It may cause whirlwind cylinder pre-heating, dore furnace skinning, blocking, therefore limit its scope of application, be only applicable to shaft kiln, Wu Fa
It is applied on now widely used rotary kiln.Its additive amount is higher (1%-5%) simultaneously, cause to add it is at high cost, using limited.
Summary of the invention
The object of the present invention is to provide a kind of Decomposition of Calcium Carbonate promotor, which can be improved the decomposition effect of calcium carbonate
Rate, thus it is energy saving, obtain good benefit.
Decomposition of Calcium Carbonate promotor of the invention is made of following component by weight percentage: the nitric acid of 0.1-10%
Potassium, the sodium nitrate of 0.1-5%, the waterglass of 0.1-15%, the bleeding agent of 3-12%, surplus are water.
The bleeding agent be fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether, aliphatic acid polyethenoxy ether one
Or mixtures thereof kind.
Decomposition of Calcium Carbonate promotor is matched based on said components, is transparency liquid, density 1.09-1.27g/cm3, pH8-9.
A kind of application method of Decomposition of Calcium Carbonate promotor, Decomposition of Calcium Carbonate promotor are added to the additive amount in calcium carbonate
For the 0.7-1wt ‰ of calcium carbonate, i.e., calcium carbonate per ton adds 0.7-1kg promotor.
The beneficial effect of Decomposition of Calcium Carbonate promotor of the present invention is: can quickly enter calcium carbonate by contained bleeding agent
Intragranular portion, institute's metal ion and silicate component can form low-temperature eutectic object with calcium, to promote the decomposition of calcium carbonate anti-
Positive progress is answered, the decomposition efficiency of calcium carbonate is improved, achieves energy-saving and emission reduction purposes, obtains good benefit.Calcium carbonate of the present invention
Decomposition accelerating agent applies also for the flue gas desulfurization of station boiler, by promoting the decomposition of calcium carbonate, improves captured sulfur result, reduces
Power station operation cost obtains good social effect.
Specific embodiment
Decomposition of Calcium Carbonate promotor of the present invention is described in further detail below with reference to the embodiment of the present invention.
Decomposition of Calcium Carbonate promotor of the present invention includes the potassium nitrate of 0.1-10%, 0.1-5% by weight percentage
Sodium nitrate, the waterglass of 0.1-15%, the bleeding agent of 3-12%, surplus be water.Unless otherwise specified, the object listed by the present invention
The parts by weight of the ingredient of matter are all based on the content of active material, thus do not include the carrier being possibly comprised in marketable material or
By-product.
Embodiment one: Decomposition of Calcium Carbonate promotor include by weight percentage 3.5% potassium nitrate, 5% sodium nitrate,
12% waterglass, 3% alkyl phenol polyoxyethylene ether (APEO), surplus are water, are mixed into calcium carbonate, and clinker is applied to
Production, and is not added compared with promotor, and Decomposition of Calcium Carbonate rate is improved by 98.2% to 98.6%, coal electric mill consumption reduce by 300 degree/
It, decomposition furnace outlet temperature is increased to 908 DEG C by 900 DEG C, and each index of clinker (3 days intensity, 28 days intensity, three ratios etc.) is protected
It is fixed to keep steady.
Embodiment two: Decomposition of Calcium Carbonate promotor include by weight percentage 7.5% potassium nitrate, 0.1% sodium nitrate,
14% waterglass, 5% fatty alcohol polyoxyethylene ether (AEO), surplus are water, are mixed into coal dust, applied to boiler of power plant
Furnace sorbent injection desulfurization, and is not added compared with promotor, and exhanst gas outlet sulfur dioxide concentration is by 380mg/m3It is down to 350mg/m3, take off
Sulphur efficiency is improved by 90% to 90.8%, meanwhile, after adding promotor, Decomposition of Calcium Carbonate energy consumption is reduced, and boiler output is caused to increase
Add, play certain effect of coal saving, being calculated coal saving rate is 3.5%.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. a kind of Decomposition of Calcium Carbonate promotor, which is characterized in that the Decomposition of Calcium Carbonate promotor is by following components and quality
Percentage composition composition:
The potassium nitrate of 0.1-10%, the sodium nitrate of 0.1-5%, the waterglass of 0.1-15%, the bleeding agent of 3-12%, surplus are
Water.
2. a kind of Decomposition of Calcium Carbonate promotor according to claim 1, it is characterised in that the bleeding agent is fatty alcohol
Or mixtures thereof polyoxyethylene ether, alkyl phenol polyoxyethylene ether, one kind of aliphatic acid polyethenoxy ether.
3. a kind of Decomposition of Calcium Carbonate promotor according to claim 1, it is characterised in that the Decomposition of Calcium Carbonate promotes
Agent is transparency liquid, density 1.09-1.27g/cm3, pH 8-9.
4. a kind of application method of Decomposition of Calcium Carbonate promotor as described in claim 1, which is characterized in that the calcium carbonate
It is 0.7-1wt ‰ that decomposition accelerating agent, which is added to the additive amount in calcium carbonate,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029457.0A CN106698987B (en) | 2016-11-14 | 2016-11-14 | A kind of Decomposition of Calcium Carbonate promotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029457.0A CN106698987B (en) | 2016-11-14 | 2016-11-14 | A kind of Decomposition of Calcium Carbonate promotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106698987A CN106698987A (en) | 2017-05-24 |
| CN106698987B true CN106698987B (en) | 2018-12-11 |
Family
ID=58940144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611029457.0A Active CN106698987B (en) | 2016-11-14 | 2016-11-14 | A kind of Decomposition of Calcium Carbonate promotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106698987B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691285B (en) * | 2009-10-22 | 2012-03-07 | 洛阳大泽节能环保科技有限公司 | Efficient composite cement sintering agent |
| CN101723611B (en) * | 2009-12-08 | 2012-01-11 | 西安市得莱克砼外加剂有限公司 | Energy-saving cement clinker quick sintering intensifier |
-
2016
- 2016-11-14 CN CN201611029457.0A patent/CN106698987B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106698987A (en) | 2017-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105779074B (en) | A kind of cement kiln calcium base catalytic desulfurizing agent | |
| JP6976425B2 (en) | Manufacturing method of cement material by ozone oxidation | |
| CN113072311A (en) | Steel slag auxiliary cementing material and preparation method and application thereof | |
| CN102179161B (en) | Slurry for desulfuration and denitration of recirculating fluidized bed boiler | |
| CN102101011B (en) | Wet desulphurization method for coal-fired power plant and additive used by same | |
| CN102633453B (en) | Neutral modifying agent for fluorgypsum and method for utilizing neutral modifying agent to modify fluorgypsum | |
| CN102580514A (en) | Additive for strengthening wet flue gas desulfurization technology | |
| CN110817925A (en) | Method for resource utilization of desulfurized fly ash | |
| CN107164013A (en) | A kind of powder nanometer catalytically fixed sulphur agent and preparation method thereof of new type nonaqueous cement raw material | |
| CN104941428A (en) | Novel limestone-gypsum wet flue gas desulfurization additive | |
| CN108002769A (en) | Concrete prepared from desulfurization by-products | |
| CN106698987B (en) | A kind of Decomposition of Calcium Carbonate promotor | |
| KR102659413B1 (en) | Eco-friendly general-purpose binder composition for solidifying soil | |
| CN1320945C (en) | Method for carrying out flue gas desulfurization by using mineral powder of magnesite | |
| KR101392271B1 (en) | Cement admixtures for enhancing compressive strength and Cement composition using the same | |
| CN101560425B (en) | Novel coal sulphur-fixing agent, preparation method and application thereof | |
| CN106823772A (en) | Desulfuration in furnace synergist and desulfurizing agent | |
| CN102530884A (en) | Method for preparing sulfuric acid and cement with fluorine gypsum | |
| KR102685341B1 (en) | Tetrapot composition using carbon dioxide collector material | |
| CN104232241A (en) | Burning coal additive and preparation method thereof | |
| CN111018389A (en) | Expanding agent clinker and production method thereof | |
| CN109806724B (en) | Desulfurization and denitrification absorbent and preparation method thereof | |
| RU2013122923A (en) | METHOD FOR PROCESSING SODIUM-FLUOR-CARBON-CONTAINING WASTES OF ELECTROLYTIC PRODUCTION OF ALUMINUM | |
| CN103693869A (en) | Composite cement | |
| KR20190111277A (en) | Burning efficiency improving agent for increasing steam production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |