CN100427611C - Efficient lime clarifier for sugar solution and its prepn and use - Google Patents
Efficient lime clarifier for sugar solution and its prepn and use Download PDFInfo
- Publication number
- CN100427611C CN100427611C CNB2005100066688A CN200510006668A CN100427611C CN 100427611 C CN100427611 C CN 100427611C CN B2005100066688 A CNB2005100066688 A CN B2005100066688A CN 200510006668 A CN200510006668 A CN 200510006668A CN 100427611 C CN100427611 C CN 100427611C
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- lime
- sugar
- finings
- milk
- slake
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Abstract
The present invention provides a lime clarifier with high efficiency used for sugar, a manufacture method thereof and an application method thereof, which relates to a sugar manufacture technology. The lime clarifier with high efficiency used for sugar is a kind of powdery lime compound which has components and component contens of effective CaO (>=85%), MgO (<=4.5%), SiO2 (<=2.0%), Fe2O3 (<=0.3%), Al2O3 (<=0.5%), CaSO4 (<=1.0%), cane sugar and NaCl (<=1*10<-3>%) according to weight percentage. The lime clarifier with high efficiency used for sugar has physical and chemical indexes of activity (250 to 300 mL) and granularity (<=125 mu m). The manufacture of the lime clarifier has the steps of material preparing, calcining, crushing and sieving. The application method of the lime clarifier of the present invention in sugar solution clarification is characterized in that a lime milk manufacture process has two slaking steps. The lime clarifier of the present invention has the advantages of high activity, high effective content of the CaO, high deposition reaction speed, thorough lime slaking, high lime utilization rate, effective improvement of clarification effect, improved sugar juice quality, etc. The manufacture method and the application method of the lime clarifier have the advantages of simplicity and convenience.
Description
Technical field:
The present invention relates to a kind of sugar refining, that is: a kind of liquid glucose finings and preparation method thereof, and this liquid glucose finings utilization in the liquid glucose clarifying process.
Background technology:
Now, liquid glucose clarifying method in sugar refinery mainly is to adopt two kinds of sulfurous method or carbonatation process, and their clarification mechanism adds milk of lime exactly in liquid glucose, feed SO then
2Or CO
2Gas, therefore, unslaked lime is the finings that the most generally use in sugar refinery, it produces multiple important chemical reaction in syrup.In the clarification operation, lime is that the mode by milk of lime adds sugarcane juice, and SO
2Thereby, phosphoric acid forms calcium sulfite precipitation and calcium phosphate precipitation the colloid in the syrup, pigment absorption removed.Therefore, the quality of milk of lime directly has influence on calcium sulfite precipitation and calcium phosphate precipitation to Ca in the adsorptive power of colloid pigment and the sugarcane juice
2+Residual quantity, finally have influence on the quality of product and the incrustation situation of equipment pipe.The quality that improves milk of lime is one of key factor that improves sugar refinery quality product, reduces production costs.And sugar refinery lime as the liquid glucose finings in the liquid glucose clarifying process is common lump lime at present, thereby, there is following problem:
1, because of lime emulsification is incomplete, effective CaO content is low, and soot particle is many, and after reaction is serious, causes following harm:
(1) subsequent handling sugarcane juice pH raises and fluctuation, influences the syrup quality;
(2) it is excessive and form sucrose dicalcium, sucrose DFP to add ash easily, causes forming closely calcium precipitation and clarifying process is worsened;
(3) Ca (OH)
2Concentration is low, makes that precipitin reaction speed is slow, and increases the evaporation steam consumption;
(4) the residual calcium salt content height of syrup causes product ash content height, equipment pipe incrustation serious;
(5) the content height of inorganics in the syrup is made sweet rate rising thereby make, and the sugar recovery reduces;
(6) lime and SO
2Reaction not exclusively causes intensity of sulfitation low, SO
2Be not fully utilized, sulfur consumption is big.
2, the lime slake is not thorough, also can cause the lime utilization ratio low, increases production cost; And the existence of impurity in the milk of lime causes the Ca that forms
3(PO
4)
2, CaSO
3Solubleness raises, and makes residual Ca in the syrup
2+Increase.
Summary of the invention:
The technical problem to be solved in the present invention is: existing common lime finings exist because of lime emulsification incomplete, effective CaO content is low, soot particle is many, the above-mentioned harm that after reaction seriously causes, and the lime slake is not thorough, cause the lime utilization ratio low, the ropy problem of liquid glucose, a kind of CaO effective content height is provided, precipitin reaction speed is fast, and the lime slake is thorough, lime utilization ratio height, can effectively improve clarifying effect, improve sugar efficient lime finings and the making method and the application method in the liquid glucose clarification thereof of syrup quality.
The technical scheme that solves its above-mentioned technical problem is:
A kind of sugar efficient lime finings is characterized in that: this active lime finings is a kind of pulverous lime mixture, and each component concentration is by weight percentage in its mixture:
Effective CaO 〉=85% MgO≤4.5% SiO
2≤ 2.0%
Fe
2O
3≤0.3％ Al
2O
3≤0.5％ CaSO
4≤1.0％
Sucrose≤1 * 10
-3% NaCl≤1 * 10
-3%
Physical and chemical index is as follows:
Activity degree 250～300mL
Granularity≤125 μ m
As related art scheme of the present invention be: the above-mentioned sugar making method of efficient lime finings, it is characterized in that: the method includes the steps of:
A, get the raw materials ready: take by weighing following component raw material for standby in proportion, each component content is calculated as with parts by weight:
Wingdale-CaCO
3100 weight parts
Industrial salt-NaCl 0.025～0.1 amount part
General industry coal 8～12 weight parts
B, calcining:
Above-mentioned each component raw material is put into the limestone kiln, calcined 2～6 hours down at 900 ℃～1250 ℃;
C, pulverizing: the unslaked lime after will calcining is put into the grinding machine pulverizing makes its granularity less than 125 μ m;
D, classification: the unslaked lime after will pulverizing is by the grading machine classification, and its granularity is less than the sugar that the is the present invention efficient lime finings of 125 μ m.
As another related art scheme of the present invention be: above-mentioned sugar is with the application method of efficient lime finings in the liquid glucose clarification, comprise make milk of lime, add milk of lime, in and operation, it is characterized in that: described making milk of lime comprises following steps:
A, the first step slake:
Sugar is put into the 1st slake bucket with the efficient lime finings, use the efficient lime finings in sugar: water=100 weight parts: 55 ℃～70 ℃ hot water of ratio adding of 90～120 weight parts stir;
B, the second step slake:
Take out the 1st milk of lime that the slake bucket comes out, put into the 2nd slake bucket, and add a certain amount of 20 ℃～40 ℃ cold water, stir, milk of lime is diluted to 8～20Be;
Described interpolation milk of lime be will the 2nd slake bucket stir the milk of lime that obtains be pumped into stream smoke in and operation, add in the liquid glucose;
In described with operation: consistent with traditional method.
Because the present invention's sugar is as a systems engineering with links such as the production of lime, uses with efficient lime finings and making method and the utilization in liquid glucose is clarified thereof, the use of the choosing of Wingdale, calcination process control of process condition, efficient additive, sugar refinery production process are considered aspects such as the accessibility of the requirement of lime and use operation, harmonies comprehensively, thereby the present invention's sugar has following beneficial effect with efficient lime finings and making method and utilization thereof:
One, can improve clarifying effect, improve the syrup quality, can reduce production costs again.
1, the lime slake is thorough, has improved the utilization ratio of lime, reduces the consumption of lime, reduces cost:
Because the present invention's sugar is little with efficient lime finings particle, void content is big, specific surface area is big, the area that contacts with water is big, thereby fast with the speed of response of water, reduce or avoided the residual of slake lime particle not, improved the utilization ratio of lime, thereby reduced the consumption of lime, reduced production cost.
2, precipitin reaction speed is fast, and after reaction significantly reduces, thereby reduces the evaporation steam consumption, can improve clarifying effect, can reduce production costs again.
The present invention's sugar is little with efficient lime finings particle, and void content is big, has big specific surface, thereby can dissolve apace in water, keeps higher Ca (OH)
2Concentration, and milk of lime is fresh, and make: 1. precipitin reaction speed is fast, and effect of settling is good, and alleviates after reaction; 2. SO
2The specific absorption height, sulphur utilization ratio height; 3. the concentration of the clear juice in the stove drying and back was unlikely low, alleviated the burden of evaporization process, thereby reduced the evaporation steam consumption.
3, improve clarifying effect, improve the syrup quality.
Because efficient lime finings slake, the reaction fast of the present invention's sugar, thereby be easy to grasp and control the best ash amount that adds, avoid causing forming CaSO closely owing to adding excessive sucrose dicalcium, the sucrose DFP of forming of ash
3, Ca
3(PO
4)
2Or CaCO
3Precipitation and clarifying process is worsened.
On the other hand, the use of efficient lime finings of the present invention's sugar, do not exist because of the bad and residual lime particle of emulsification, the digestion of avoiding lagging behind raises sugarcane juice pH value or fluctuation, syrup is reached fast and keep stable p H, avoid the hysteresis of residual lime particle to digest the sedimentation that liberated heat has a strong impact on sugarcane juice simultaneously, guarantee that the quality of syrup and clear juice are settled stable, reduce the decomposition of the calcium content and the reducing sugar of clear juice.
Because of the present invention's sugar is few with the impurity of efficient lime finings, active high, speed of response is fast again, and the deposit seeds that obtains is even, solid, high adsorption capacity, and the throw out settling velocity is fast, thereby syrup is as clear as crystal, and quality is good, and settling bowl pressure is little, stable operation.
4, add ash and be easy to control, production smoothing
In the liquid glucose clarifying process, in and pH control very important, manually operated fluctuation is bigger.Because of the present invention sugar is Powdered with the efficient lime finings, be easy to realize adding the automatic control of grey process, make to add grey process stabilization that the pH fluctuation is little, can improve boiling house recovery, minimizing molasses productive rate; But while save operation cost.
Closed Circulation in Sugar Production is particularly clarified workshop section will accelerate the material processing, shortens residence time of material as far as possible, reduces conversion loss and bad variation in the production process.The present invention's sugar uses the efficient lime finings owing to reactive behavior height, milk of lime and SO
2The energy rapid reaction, the deposit seeds settling velocity that obtains is fast, has shortened the residence time of material in the settling vessel, thereby can avoid sugarcane juice to transform loss and bad variation, thereby improves boiling house recovery; Simultaneously, because the minimizing of after reaction, precipitation has reduced the content of inorganics in the syrup fully, makes sweet coefficient thereby reduce, and has improved the rate of recovery.
Two, the present invention's sugar can improve the working environment of workers, preserve the ecological environment with the use of efficient lime finings, has the good social benefit.
1, improve the working environment of workers: tradition is lump lime with common lime as finings, needs the artificial slaking apparatus that adds, work under bad environment, and labour intensity is big, and more seriously lime has corrodibility, and respiratory system and the skin to the people damages easily.And the present invention's sugar with the efficient lime finings owing to be Powdered unslaked lime, can adopt airtight basin to load and add automatically, the workman need not directly to contact with lime, avoids the injury of lime to the people, avoids the generation of occupational illness.
2, preserve the ecological environment
Traditional ordinary student lime can not be cleared up in water fully, a part unslaked lime be not made into milk of lime and and lime mud discharge together, not only make the unslaked lime utilization ratio low, waste is serious, running cost rises, and can cause the bulking effect of lime mud stockyard occurrence of large-area, and influence clearing of lime mud, cause pollution to environment.The present invention's sugar is used the efficient lime finings because the purity height; slake is thorough; the lime lime-ash is few; even a spot of lime mud is arranged; because the unslaked lime do not cleared up of the inside, therefore there is not after reaction yet and causes expansion, not only improved resource utilization; avoid or greatly reduced clearing of lime mud, help the protection of ecotope simultaneously.
Three, using method is easy, adds ash and is easy to control, production smoothing.
In the liquid glucose clarifying process, in and pH control very important, manually operated fluctuation is bigger.Because of the present invention's sugar is Powdered unslaked lime with the efficient lime finings, be easy to realize adding the automatic control of grey process, make to add grey process stabilization that the pH fluctuation is little; But while save operation cost.
Four, the present invention's sugar with the beneficial effect of the making method of efficient lime finings is: simple, the difficult generation given birth to burning and burn-off phenomenon, the active height of the unslaked lime of producing, CaO effective content height.
The present invention's sugar is with the mechanism of the making method of efficient lime finings: the interpolation of NaCl is used, caused the variation of the lime character of burning till, concrete reason is: the NaCl that has added Wingdale weight 0.25 ‰～0.1 ‰ in the limestone calcination process is in Wingdale, NaCl runs into high temperature and scraps fusion and volatilize in when calcining, form a kind of steam, its steam is to CaCO
3And MgCO
3Thermal degradation play the effect of gas bath and heating medium, simultaneously kiln temperature is played the stirring proportionality action, therefore, the giving birth to of lime burnt and burning has reduced;
When calcining belt temperature reached 1100～1300 ℃, NaCl steam was to CaCO
3And MgCO
3Decomposition and crystallization grow and to play the intensive katalysis, therefore decompose and produce thing CO
2Be easy to overflow, thereby accelerated CaCO
3And MgCO
3Decomposition reaction velocity.This crystallization combination is the identical polyhedron of crystallographic dimension, and void content is higher, and specific surface area is big, thereby has increased the reaction area of lime, has improved the activity degree of unslaked lime.The interpolation of NaCl is used, and causes that the variation of the lime character of burning till is in particular in the following aspects.
(1) the lime rerum natura changes
Adopt image analyzer, comparative analysis is in the rerum natura of the lime of 1100 ℃ of calcination.The lime that adds the NaCl calcination, pore on average long 6.20 μ m, wide 2.60 μ m, and pore quantity is many, most intercommunications.The lime that does not add the NaCl calcination, pore on average long 3.20 μ m, wide 1.16 μ m, and pore quantity is few.The reason that the former rerum natura is improved is because the lime kilning temperature far surpasses the fusing point of NaCl, thus the NaCl that is evaporated owing to proportion greater than CO
2, and deposition is shrouded on Wingdale or lime surface, even along CaCO
3Decompose and discharge CO
2Passage and spread the cause that penetrates in the CaO crystal, in case enter the NaCl steam in the CaO crystal, on its position, do long-range unordered thermal motion, not only hinder the volumetric shrinkage that the CaO recrystallize takes place, even aggravation crystal grain lack of alignment, intercrystalline is elongated, widens apart from vibrating, and forms the porous crystalline body of opening.
(2) the CaO xln changes
The coarse grain Wingdale is (as 950 ℃) when low temperature of combustion, just can access active higher lime.When higher calcination temperature (as 1100 ℃), just can not get active high lime.Its reason is that this lime discharges CO with regard to decomposing in the time of 950 ℃
2, to 1100 ℃ of continuous temperature-rise periods, CaO recrystallize generation volumetric shrinkage has formed smooth spheroidal or block crystal grain, puts up a bridge mutually and even merges and grow up.Intercrystalline is inlayed and fine and close apart from dwindling, and void content descends, and volumetric shrinkage etc. cause the active decline of lime.The lime that adds the NaCl calcination is exactly with above-mentioned opposite, at CaCO
3Old phase becomes in the CaO cenotype process gradually, and the NaCl steam bath is filled in the CaO cenotype, microscopic checks and intergranule, makes lattice deformability produce bigger defective, hinders that its merging is grown up or crystal shrinks.Because internuclear distance is different in CaO and the NaCl crystal, and NaCl distributes inhomogeneously again in the CaO crystal, and in crystallisation process, the two shrinks the effect of the thermal motion of different and NaCl, forms internal stress, causes lime internal fissure, hole generation.The CaO recrystallize that adds NaCl, with even tiny strip, between abrim the crystal grain of pore pile up to form loose crystalline structure, so the CaO xln that changes causes the active raising of lime.
(3) the lime activity improves with the rising of calcination temperature
Along with the rising of temperature of combustion, do not add the active decline of NaCl incendiary lime.In contrast, add the active raising of NaCl incinerating lime.Its reason is the rising along with calcining temperature, and the NaCl compound partial vapor pressure that is evaporated increases, and the NaCl compounds content that diffusion is infiltrated in the CaO crystal is also just many more, causes that the active degree that improves of lime is also just big more.Moreover, along with temperature of combustion raises, decomposition of limestone speeds up, favourable raising lime output.
Among the present invention, repeatedly test through the contriver, in the calcination process of sugar of the present invention with the making method of efficient lime finings, the NaCl weight of adding only is Wingdale weight 0.25 ‰～0.1 ‰, played both to be difficult for producing giving birth to and burnt and burn-off phenomenon, reach and make active high, the CaO effective content height of the unslaked lime of producing, the good effect that can reduce production costs again; The mixture that has particularly added NaCl and sucrose in crushing process is an additive, and the slake speed of lime is improved greatly, and solubleness also obviously improves, and has further improved sugared quality with the efficient lime finings.
Below, the sugar to the present invention is further described with the technical characterictic that efficient lime finings and making method reach the utilization in the liquid glucose clarification in conjunction with the embodiments.
Description of drawings:
Fig. 1: the accumulating in the application method of efficient lime finings in the liquid glucose clarifying process of embodiment of the invention trisaccharide, loading and unloading, making milk of lime and charging process schematic flow sheet.
Among the figure: 1-storage tank car, 2-blower, 3-efficient lime storage tank,
4-frequency conversion worm conveyor, 5-slake bucket 1,6-slake bucket 2,
7-pump, 8-cyclone separator.
Embodiment:
Embodiment one
A kind of sugar efficient lime finings, this active lime finings are a kind of pulverous lime mixtures, and each component concentration is by weight percentage in its mixture:
Effective CaO 〉=85% MgO≤4.5% SiO
2≤ 2.0%
Fe
2O
3≤0.3％ Al
2O
3≤0.5％ CaSO
4≤1.0％
Sucrose≤1 * 10
-3% NaCl≤1 * 10
-3%
Physical and chemical index is as follows:
Activity degree 250～300mL
Granularity≤125 μ m
Embodiment two:
The above-mentioned sugar making method of efficient lime finings comprises following steps:
A, get the raw materials ready: take by weighing following component raw material for standby in proportion, each component content is calculated as with parts by weight:
Wingdale-CaCO
3100 weight parts
Industrial salt-NaCl 0.05 weight part
General industry coal 10 weight parts
B, calcining:
Above-mentioned each component raw material is put into the limestone kiln, calcined 2～6 hours down at 900 ℃～1250 ℃;
C, pulverizing: the unslaked lime after will calcining is put into the grinding machine pulverizing makes its granularity less than 125 μ m;
D, classification: the unslaked lime after will pulverizing is by the grading machine classification, and its granularity is less than the sugar that the is the present invention efficient lime finings of 125 μ m.
A kind of conversion as the embodiment of the invention, the mixture that also can add NaCl and sucrose in the described pulverizing process is an additive, the consumption of this additive is 6～20ppm of unslaked lime weight, the ratio of NaCl and sucrose is 1: 1, the slake speed of lime is improved greatly, and solubleness also obviously improves.
As another conversion of the embodiment of the invention, described industrial salt-NaCl and general industry can also increase or reduce with the consumption of coal, and general industry with salt-NaCl consumption is: 0.025～0.1 weight part, the parts by weight of coal can be 8～12 weight parts.
In the present embodiment, industrial salt-NaCl all adopts common solid NaCl.
Embodiment three
The described sugar of claim 1 is used for the method for clarifying sugar liquid with the efficient lime finings, comprise make milk of lime, interpolation milk of lime, in and operation, described making milk of lime comprises following steps:
A, the first step slake:
Sugar is put into the 1st slake bucket with the efficient lime finings, use the efficient lime finings in sugar: water=100 weight parts: 60 ℃ of hot water of ratio adding of 100 weight parts stir;
B, the second step slake:
Take out the 1st milk of lime that the slake bucket comes out, put into the 2nd slake bucket, and add a certain amount of 30 ℃ cold water, stirring, milk of lime is diluted to 8～20Be;
As a kind of conversion of the embodiment of the invention, in the first step slake operation, sugar with the ratio of efficient lime finings and water can also can be for changing within the specific limits:
Sugar efficient lime finings: water=100 weight parts: 90 weight parts,
Or: sugar efficient lime finings: water=100 weight parts: 110 weight parts,
Or: sugar efficient lime finings: water=100 weight parts: 120 weight parts,
The first step slake can be high slightly or low slightly with the temperature of hot water, and its span is: 55 ℃～70 ℃;
The second step slake also can be high slightly or low slightly with the temperature of cold water, and its span is: 20 ℃～40 ℃.
The method of described interpolation milk of lime be will the 2nd slake bucket stir the milk of lime that obtains be pumped into stream smoke in and operation, add in the liquid glucose.
In described with operation: consistent with traditional method.
In above-mentioned making milk of lime operation, present embodiment is that sugar is stored in the basin with the efficient lime finings, be delivered to the 1st slake bucket (referring to Fig. 1) by worm conveyor, alleviated working strength of workers greatly, certainly, also can carry, and use other manual or self-feeding modes instead without worm conveyor.
Claims (3)
1. a sugar is used for the method for clarifying sugar liquid with the efficient lime finings, comprise make milk of lime, add milk of lime, in and operation, it is characterized in that: described sugar is a kind of pulverous lime mixture with the efficient lime finings, and each component concentration is by weight percentage in its mixture:
Effective CaO 〉=85% MgO≤4.5% SiO
2≤ 2.0%
Fe
2O
3≤0.3％ Al
2O
3≤0.5％ CaSO
4≤1.0％
Sucrose≤1 * 10
-3% NaCl≤1 * 10
-3%
Physical and chemical index is as follows:
Activity degree 250～300mL
Granularity≤125 μ m;
Described making milk of lime operation comprises following steps:
A, the first step slake:
Sugar is put into the 1st slake bucket with the efficient lime finings, use the efficient lime finings in sugar: water=100 weight parts: 55 ℃～70 ℃ hot water of ratio adding of 90～120 weight parts stir;
B, the second step slake:
Take out the 1st milk of lime that the slake bucket comes out, put into the 2nd slake bucket, and add a certain amount of 20 ℃～40 ℃ cold water, stirring, milk of lime is diluted to 8～20Be.
2. a kind of sugar according to claim 1 is used for the method for clarifying sugar liquid with the efficient lime finings, it is characterized in that: in the described making milk of lime operation, be that sugar is stored in the basin with the efficient lime finings, be delivered to the 1st slake bucket by worm conveyor.
3. a kind of sugar according to claim 1 and 2 is used for the method for clarifying sugar liquid with the efficient lime finings, it is characterized in that: the method for described interpolation milk of lime is to stir the milk of lime that obtains with being pumped in the stove drying and operation at the 2nd slake bucket, adds in the liquid glucose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100066688A CN100427611C (en) | 2005-01-25 | 2005-01-25 | Efficient lime clarifier for sugar solution and its prepn and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100066688A CN100427611C (en) | 2005-01-25 | 2005-01-25 | Efficient lime clarifier for sugar solution and its prepn and use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1810993A CN1810993A (en) | 2006-08-02 |
| CN100427611C true CN100427611C (en) | 2008-10-22 |
Family
ID=36844109
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100066688A Expired - Fee Related CN100427611C (en) | 2005-01-25 | 2005-01-25 | Efficient lime clarifier for sugar solution and its prepn and use |
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| CN (1) | CN100427611C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104710116B (en) * | 2015-03-02 | 2017-03-15 | 南宁苏格尔科技有限公司 | A kind of sulfurous method sugaring lime cream device for formulating and preparation method |
| CN104928403B (en) * | 2015-04-29 | 2019-05-10 | 广西农垦糖业集团防城精制糖有限公司 | A kind of compound lime emulsifier and its preparation method and application |
| CN106011319A (en) * | 2016-06-27 | 2016-10-12 | 广西农垦糖业集团红河制糖有限公司 | Sulphur fumigation neutralization reaction device |
| CN106319098B (en) * | 2016-09-26 | 2019-10-18 | 广西科技大学 | A kind of sugar juice decoloring agent and the method for clarifying syrup decoloration |
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|---|---|---|---|---|
| SU1708851A1 (en) * | 1988-10-18 | 1992-01-30 | Воронежский технологический институт | Diffusion juice cleaning method |
| CN1023996C (en) * | 1991-05-14 | 1994-03-16 | 齐鲁乙烯无机化工厂 | Method for producing highly active calcium oxide |
-
2005
- 2005-01-25 CN CNB2005100066688A patent/CN100427611C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1708851A1 (en) * | 1988-10-18 | 1992-01-30 | Воронежский технологический институт | Diffusion juice cleaning method |
| CN1023996C (en) * | 1991-05-14 | 1994-03-16 | 齐鲁乙烯无机化工厂 | Method for producing highly active calcium oxide |
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| Title |
|---|
| 加食盐燃烧提高石灰活性的机理研究. 朱英雄，冯启成，高文清，李永秋，李文秀，王庆吉，余兆贤.东北大学学报（自然科学版），第15卷第6期. 1994 |
| 加食盐燃烧提高石灰活性的机理研究. 朱英雄，冯启成，高文清，李永秋，李文秀，王庆吉，余兆贤.东北大学学报（自然科学版），第15卷第6期. 1994 * |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN1810993A (en) | 2006-08-02 |
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Application publication date: 20060802 Assignee: LIUZHOU YIPUKE CHEMICAL TECHNOLOGY DEVELOPMENT CO.,LTD. Assignor: Huang Yongchun|Lan Shengyu|Zhang Lubin|Liang Fenghai Contract record no.: 2009450000112 Denomination of invention: Efficient lime clarifier for sugar solution and its prepn and use Granted publication date: 20081022 License type: Exclusive License Record date: 20091201 |
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