CN108689728A - A kind of new process of carbide slag solid waste comprehensive utilization production calcium base manure material - Google Patents
A kind of new process of carbide slag solid waste comprehensive utilization production calcium base manure material Download PDFInfo
- Publication number
- CN108689728A CN108689728A CN201810915505.9A CN201810915505A CN108689728A CN 108689728 A CN108689728 A CN 108689728A CN 201810915505 A CN201810915505 A CN 201810915505A CN 108689728 A CN108689728 A CN 108689728A
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- CN
- China
- Prior art keywords
- calcium
- carbide slag
- ammonium nitrate
- solid waste
- production
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C1/00—Ammonium nitrate fertilisers
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/36—Nitrates
- C01F11/38—Preparation with nitric acid or nitrogen oxides
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C5/00—Fertilisers containing other nitrates
- C05C5/04—Fertilisers containing other nitrates containing calcium nitrate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses the new processes that a kind of carbide slag solid waste comprehensively utilizes production calcium base manure material, which is characterized in that including following process:A, prepare raw material;B, raw material are handled;C, it is diluted with water;D, neutralization reaction;E, proportioning chemically reacts by a certain percentage;F, final calcium ammonium nitrate product is made;G, final nitric acid calcium product is made.The advantages of the present invention over the prior art are that:Currently, comprehensively utilizing the application case for producing calcium ammonium nitrate, calcium nitrate in industrial production there are no use carbide slag solid waste, beneficial effects of the present invention include:The cyclic utilization of waste of carbide slag Industrial Solid Waste is realized, the calcium ammonium nitrate of production, calcium nitrate quality meet"Calcium ammonium nitrate"(HG/T3790-2005),"Agricultural calcium nitrate"The requirement of (HG/T 4580-2013) standard, reduces enterprise's production cost, reduces CO2 emission, has good economic benefit and environmental benefit.
Description
Technical field
The present invention relates to comprehensive utilization of resources field, in particular to a kind of carbide slag solid waste comprehensive utilization production calcium base manure material
New process.
Background technology
Carbide slag is to belong to large Industrial Solid Waste, is the product process such as industrial production polyvinyl chloride, polyvinyl alcohol, acetylene gas
In, the waste residue that generates after calcium carbide hydrolysis.According to calculating, 1t standard calcium carbides production acetylene gas about generates 1.5-2t carbide slags.Root
It is counted according to calcium carbide industry, carbide slag annual emissions are more than 15,000,000 tons.The main component of carbide slag is calcium hydroxide, is contained simultaneously
A large amount of useless impurity, such as sulfide, phosphide, iron oxide, magnesia, silica, alundum (Al2O3), and not yet
The calcium carbide reacted completely, it is possible to create fire.It is in canescence due to containing micro carbon and sulphur phosphorus impurities, has micro- stink, when long
Between the old slag stacked also contain a small amount of calcium carbonate.Since carbide slag quantity is big, transportation cost is high, and can cause secondary pollution, locates
It is big, of high cost to manage difficulty, to Chan Zha enterprises reasonable standard disposition carbide slag band and prodigious pressure, realizes the synthesis of carbide slag
Using that can not only turn waste into wealth, economic benefit and social benefit two-win are realized, and meet the feelings that country exempts environment protection tax
Shape.Currently, the approach of carbide slag comprehensive utilization includes production cement building material, as exhaust gas waste water treating agent, production calcium carbonate system
Row chemical products.
(1) cement building material is produced
It is a large amount of important channels for utilizing carbide slag as cement producting material, there is the case of successful application at home.But
It is that there are many problems, such as cement industry to belong to industries that have surplus production capacity during actually comprehensive utilization, and grassroot project is difficult
Examination & approval;Existing cement production enterprise Market competition, the seasonal fluctuation of the sales volume of the product is larger, is ensureing product quality, collaboration
It handles under many-sided tradeoffs such as waste, technical matters be feasible, practical disposal of wastes amount is very limited.
(2) exhaust gas waste water treating agent
Contain a large amount of Ca (OH) in carbide slag2, can be with sulfur dioxide absorption in strong basicity, it can be as the de- of fume treatment
Sulphur agent.The practical application example of this approach is few, also very limited to the digestion capability of carbide slag.
(3) calcium series chemical product
Lime production series chemical product is substituted using carbide slag, such as calcium chloride, potassium chlorate, calper calcium peroxide, chloroform and carbon
Sour calcium series of products are the best comprehensive utilizations of economic benefit, it can be achieved that comprehensive utilization of waste materials while promotes added value of product
Approach.Currently, main problem existing for this utilization ways is a lack of ripe, reliable process program, and practical application at
Work(case is few.
Invention content
The technical problem to be solved by the present invention is to utilize the Ca (OH) in carbide slag2To replace lime stone to be given birth to as raw material
Calcium ammonium nitrate, nitric acid calcium product are produced, realizes that changing waste into resources recycles.
In order to solve the above technical problems, technical solution provided by the invention is:A kind of carbide slag solid waste comprehensive utilization production
The new process of calcium base manure material, including following process:
A, prepare raw material:Carbide slag, nitric acid (concentration 58%), ammonium nitrate;
B, raw material are handled, carbide slag can meet by pretreatment process such as material, conditioning, filterings
Reaction requirement later;
C, 58% nitric acid is diluted with water according to demand in nitric acid reaction tank and is handled, this step can carry out dilute
It releases, can not also dilute, it is different to equip different requirements;
D, through measuring to put into material slot by a certain percentage neutralization reaction is occurred into for the intermediate products that B, step C obtain, made
Nitric acid mother liquor of calcium is obtained, after between cooling, adjusting pH to 6.5-7, mother liquor send plate and frame filter press press filtration, and supernatant is for use, filter
Slag is solid waste;
E, the supernatant that D steps obtain is chemically reacted with ammonium nitrate through measuring proportioning by a certain percentage, is made into
Product mother liquor, then through being concentrated by evaporation to 1.8g/cm3Pan tank is sent into left and right;
F, the calcium ammonium nitrate slurry of pan tank obtains final calcium ammonium nitrate production through granulation, cooling, screening and packaging process
Product;
G, for the supernatant for obtaining D steps by being concentrated by evaporation, the processes such as crystallization and centrifugation packaging obtain final calcium nitrate
Product.
The advantages of the present invention over the prior art are that:Currently, there are no comprehensive using carbide slag solid waste in industrial production
The application case using production calcium ammonium nitrate, calcium nitrate is closed, beneficial effects of the present invention include:Realize carbide slag Industrial Solid Waste
The cyclic utilization of waste, the calcium ammonium nitrate of production, calcium nitrate quality meet"Calcium ammonium nitrate"(HG/T3790-2005),"Agricultural is used
Calcium nitrate"The requirement of (HG/T 4580-2013) standard, reduces enterprise's production cost, reduces CO2 emission, has fine
Economic benefit and environmental benefit.
As an improvement, the product of production is selected according to actual needs, it can be according to the market demand to product type
Proportioning is allocated.
Specific implementation mode
The present invention in the specific implementation, a kind of new process of carbide slag solid waste comprehensive utilization production calcium base manure material, including with
Lower process:
A, prepare raw material:Carbide slag, nitric acid (concentration 58%), ammonium nitrate;
B, raw material are handled, carbide slag can meet by pretreatment process such as material, conditioning, filterings
Reaction requirement later;
C, 58% nitric acid is diluted with water according to demand in nitric acid reaction tank and is handled;
D, through measuring to put into material slot by a certain percentage neutralization reaction is occurred into for the intermediate products that B, step C obtain, made
Nitric acid mother liquor of calcium is obtained, after between cooling, adjusting pH to 6.5-7, mother liquor send plate and frame filter press press filtration, and supernatant is for use, filter
Slag is solid waste;
E, the supernatant that D steps obtain is chemically reacted with ammonium nitrate through measuring proportioning by a certain percentage, is made into
Product mother liquor, then through being concentrated by evaporation to 1.8g/cm3Pan tank is sent into left and right;
F, the calcium ammonium nitrate slurry of pan tank through granulation (disc granulation or other granulation modes can be realized), cooling,
Screening and packaging process, obtain final calcium ammonium nitrate product;
G, for the supernatant for obtaining D steps by being concentrated by evaporation, the processes such as crystallization and centrifugation packaging obtain final calcium nitrate
Product.
The product of production is selected according to actual needs, the proportioning of product type can be adjusted according to the market demand
Match.
Since a variety of raw material of use are Industrial Solid Waste, so in terms of low-carbon environment-friendly energy-saving and emission-reduction, effect
Fruit is ideal, and the protection of environment can play a role.
Embodiment:
Embodiment one:A kind of new process of carbide slag solid waste comprehensive utilization production calcium base manure material, including following process:
A, prepare raw material:Carbide slag, nitric acid (concentration 58%), ammonium nitrate (concentration 50%), raw material can use lime
Stone or carbide slag;
B, raw material are handled, carbide slag can meet by pretreatment process such as material, conditioning, filterings
Reaction requirement later;
C, 50% nitric acid is diluted with water to 43% in nitric acid reaction tank;
D, through measuring to put into material slot by a certain percentage neutralization reaction is occurred into for the intermediate products that B, step C obtain, made
Nitric acid mother liquor of calcium is obtained, after between cooling, adjusting pH to 6.8, mother liquor send plate and frame filter press press filtration, and supernatant is for use, filter residue
For solid waste;
E, supernatant that D steps obtain is chemically reacted with 50% ammonium nitrate through measuring proportioning by a certain percentage,
Finished product mother liquor, then through being concentrated by evaporation to 1.7g/cm3It is sent into pan tank;
F, the calcium ammonium nitrate slurry of pan tank obtains final calcium ammonium nitrate production through granulation, cooling, screening and packaging process
Product;
G, for the supernatant for obtaining D steps by being concentrated by evaporation, the processes such as crystallization and centrifugation packaging obtain final calcium nitrate
Product.
Embodiment two:A kind of new process of carbide slag solid waste comprehensive utilization production calcium base manure material, including following process:
A, prepare raw material:Carbide slag, nitric acid (concentration 58%), ammonium nitrate (concentration 40%);
B, raw material are handled, carbide slag can meet by pretreatment process such as material, conditioning, filterings
Reaction requirement later;
C, 58% nitric acid is diluted with water to 52% in nitric acid reaction tank according to demand;
D, through measuring to put into material slot by a certain percentage neutralization reaction is occurred into for the intermediate products that B, step C obtain, made
Nitric acid mother liquor of calcium is obtained, after between cooling, adjusting pH to 6.9, mother liquor send plate and frame filter press press filtration, and supernatant is for use, filter residue
For solid waste;
E, supernatant that D steps obtain is chemically reacted with 40% ammonium nitrate through measuring proportioning by a certain percentage,
Finished product mother liquor, then through being concentrated by evaporation to 1.9g/cm3Pan tank is sent into left and right;
F, the calcium ammonium nitrate slurry of pan tank through granulation (disc granulation or other granulation modes can be realized), cooling,
Screening and packaging process, obtain final calcium ammonium nitrate product;
G, for the supernatant for obtaining D steps by being concentrated by evaporation, the processes such as crystallization and centrifugation packaging obtain final calcium nitrate
Product.
The present invention and its embodiments have been described above, this description is no restricted, it is illustrated above also only
It is one of embodiments of the present invention, actual structure is not limited to this.All in all if the ordinary skill people of this field
Member is enlightened by it, without departing from the spirit of the invention, is not inventively designed similar to the technical solution
Frame mode and embodiment, be within the scope of protection of the invention.
Claims (2)
1. a kind of new process of carbide slag solid waste comprehensive utilization production calcium base manure material, which is characterized in that including following process:
A, prepare raw material:Carbide slag, nitric acid (concentration 58%), ammonium nitrate;
B, raw material are handled, carbide slag is by pretreatment process such as material, conditioning, filterings, after can meeting
Reaction requirement;
C, 58% nitric acid being diluted with water according to demand in nitric acid reaction tank and is handled, this step can be diluted,
It can not also dilute, it is different to equip different requirements;
D, through measuring to put into material slot by a certain percentage neutralization reaction is occurred into for the intermediate products that B, step C obtain, nitre is made
Sour mother liquor of calcium, after between cooling, adjusting pH to 6.5-7, mother liquor send plate and frame filter press press filtration, and supernatant is for use, and filter residue is
Solid waste;
E, the supernatant that D steps obtain is chemically reacted with ammonium nitrate through measuring proportioning by a certain percentage, finished product is female
Liquid, then through being concentrated by evaporation to 1.8g/cm3Pan tank is sent into left and right;
F, the calcium ammonium nitrate slurry of pan tank obtains final calcium ammonium nitrate product through granulation, cooling, screening and packaging process;
G, for the supernatant for obtaining D steps by being concentrated by evaporation, the processes such as crystallization and centrifugation packaging obtain final calcium nitrate production
Product.
2. a kind of new process of carbide slag solid waste comprehensive utilization production calcium base manure material according to claim 1, feature exist
In:The product of production is selected according to actual needs, the proportioning of product type can be allocated according to the market demand.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810915505.9A CN108689728A (en) | 2018-08-13 | 2018-08-13 | A kind of new process of carbide slag solid waste comprehensive utilization production calcium base manure material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810915505.9A CN108689728A (en) | 2018-08-13 | 2018-08-13 | A kind of new process of carbide slag solid waste comprehensive utilization production calcium base manure material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646723A (en) * | 2020-05-08 | 2020-09-11 | 张延年 | High-content concrete activator and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104945026A (en) * | 2015-06-30 | 2015-09-30 | 乳源瑶族自治县东阳光化成箔有限公司 | Device and production method for producing agriculture calcium ammonium nitrate from dilute nitric acid wastewater |
| CN107324914A (en) * | 2017-08-16 | 2017-11-07 | 成都市心化工有限责任公司 | A kind of calcium ammonium nitrate fertilizer and its preparation method and application |
-
2018
- 2018-08-13 CN CN201810915505.9A patent/CN108689728A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104945026A (en) * | 2015-06-30 | 2015-09-30 | 乳源瑶族自治县东阳光化成箔有限公司 | Device and production method for producing agriculture calcium ammonium nitrate from dilute nitric acid wastewater |
| CN107324914A (en) * | 2017-08-16 | 2017-11-07 | 成都市心化工有限责任公司 | A kind of calcium ammonium nitrate fertilizer and its preparation method and application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646723A (en) * | 2020-05-08 | 2020-09-11 | 张延年 | High-content concrete activator and preparation method thereof |
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Application publication date: 20181023 |