CN1045385A - A kind of method of producing lime powder - Google Patents
A kind of method of producing lime powder Download PDFInfo
- Publication number
- CN1045385A CN1045385A CN 89101306 CN89101306A CN1045385A CN 1045385 A CN1045385 A CN 1045385A CN 89101306 CN89101306 CN 89101306 CN 89101306 A CN89101306 A CN 89101306A CN 1045385 A CN1045385 A CN 1045385A
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- China
- Prior art keywords
- lime powder
- lime
- producing
- dyhard
- powder
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- 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.)
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
A kind of method of producing lime powder, this method be utilize to produce lime nitrogen degree slag that Dyhard RU 100 (or trimeric cyanamide) discharged 1000 ℃-1100 ℃ burning decarburizations again through pulverizing, make lime powder, made lime powder effective CaO content more than 80% and the utilization ratio of lime powder be 100%.Economic benefit is obvious.
Description
The present invention relates to a kind of production method of material of construction lime powder, existing method of producing lime powder is to pulverize after calcining and make with Wingdale.
The lime nitrogen waste residue of being discharged when the objective of the invention is production Dyhard RU 100 (or three polyamine) is turned waste into wealth, and removes the pollution of lime nitrogen waste residue to environment, a kind of method of property conscientiously that proposes but the while solves the necessary lime powder of building material industry again.
The physical properties of lime nitrogen waste residue is as follows:
Outward appearance: black has little flavor of smelling, coccoid, unit weight: 900Kg/m
3, fineness 0.088-1mm.
The chemical ingredients of lime nitrogen waste residue is: nitrogen 0.58%, acid non-soluble substance 3.92%, alchlor 2.04%, ferric oxide 2.18%, carbon 24.5%, cyanogen ammonia 1.82%, calcium oxide 9.9%, calcium hydroxide 25.8%, lime carbonate 22.95%, free calcium oxide 6.42%.
The invention ultimate principle is:
So, the present invention seeks to by producing " lime nitrogen slag " that Dyhard RU 100 discharges burning decarburization 1000-1100 ℃ the time, forming main component is the granular solid of CaO, and granular solid is pulverized, and makes lime powder.
The present invention can become the aim that lime powder meets turns waste into wealth with a large amount of waste residues (produce 1 ton of Dyhard RU 100 and need discharge 10 tons of waste residues) of producing Dyhard RU 100 that are hydrolyzed with lime nitrogen, and this production technique is simple.By the lime powder that the present invention produces, the content of free calcium oxide can reach more than 80% and the utilization ratio of lime powder can reach 100%, and economic benefit is obvious.
Embodiment
Through 50 kilograms of the dried lime nitrogen slags of hydrolysis, in Boiling Combustion stove burning decarburization when reaching 500 ℃ of left and right sides, waste residue becomes white by black, slaked lime Ca(OH when temperature is elevated to 600 ℃ of left and right sides in the stove in its waste residue) will resolve into CaO, the CaCO when temperature in the stove continues to be increased to 1000 ℃ of left and right sides in the waste residue
2To all resolve into CaO, the waste residue of this moment has all become white CaO, and weight is 37.8 kilograms.Be lime powder after crushed.
Claims (1)
- A kind of method of producing lime powder: the lime nitrogen slag of being discharged when it is characterized in that utilize producing Dyhard RU 100 (or trimeric cyanamide) decarburization of in the time of 1000 ℃-1100 ℃, burn, through pulverizing, make lime powder again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89101306 CN1045385A (en) | 1989-03-06 | 1989-03-06 | A kind of method of producing lime powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89101306 CN1045385A (en) | 1989-03-06 | 1989-03-06 | A kind of method of producing lime powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1045385A true CN1045385A (en) | 1990-09-19 |
Family
ID=4854222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89101306 Pending CN1045385A (en) | 1989-03-06 | 1989-03-06 | A kind of method of producing lime powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1045385A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063159C (en) * | 1998-06-10 | 2001-03-14 | 冶金工业部鞍山冶金设计研究院 | Acid small ball outer rolling quickline sintering process |
| CN1087007C (en) * | 1997-11-14 | 2002-07-03 | 杨天雨 | Composite high-strength building lime ash and production process therefor |
| CN102795651A (en) * | 2012-09-07 | 2012-11-28 | 宁夏兴平精细化工股份有限公司 | Method for directly producing powdery calcium oxide from dicyandiamide waste residues |
| CN103696014A (en) * | 2013-12-12 | 2014-04-02 | 宁夏贝利特化工有限公司 | Method for producing calcium sulfate whisker and calcium sulfate by using wastes produced during production of nitroguanidine and dicyandiamide |
| CN110776331A (en) * | 2019-12-03 | 2020-02-11 | 山东京博环保材料有限公司 | Light ceramsite prepared from cyanamide slag and preparation method thereof |
| CN111454003A (en) * | 2020-04-29 | 2020-07-28 | 山东海天生物化工有限公司 | Method for recycling return sand in soda production |
| CN114288984A (en) * | 2021-11-16 | 2022-04-08 | 航天凯天环保科技股份有限公司 | Modified lime nitrogen slag composite particle, preparation method thereof and application thereof in stabilized solidification of beryllium-containing solid waste or polluted soil |
| CN114590809A (en) * | 2022-01-06 | 2022-06-07 | 北京科技大学 | Preparation of desulfurizer from cyanamide waste residue and carbide slag and recycling of CO2Method (2) |
-
1989
- 1989-03-06 CN CN 89101306 patent/CN1045385A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087007C (en) * | 1997-11-14 | 2002-07-03 | 杨天雨 | Composite high-strength building lime ash and production process therefor |
| CN1063159C (en) * | 1998-06-10 | 2001-03-14 | 冶金工业部鞍山冶金设计研究院 | Acid small ball outer rolling quickline sintering process |
| CN102795651A (en) * | 2012-09-07 | 2012-11-28 | 宁夏兴平精细化工股份有限公司 | Method for directly producing powdery calcium oxide from dicyandiamide waste residues |
| CN103696014A (en) * | 2013-12-12 | 2014-04-02 | 宁夏贝利特化工有限公司 | Method for producing calcium sulfate whisker and calcium sulfate by using wastes produced during production of nitroguanidine and dicyandiamide |
| CN103696014B (en) * | 2013-12-12 | 2015-12-30 | 宁夏贝利特化工有限公司 | By the method for producing nitroguanidine, the waste of Dyhard RU 100 produces calcium sulfate crystal whiskers and calcium sulfate |
| CN110776331A (en) * | 2019-12-03 | 2020-02-11 | 山东京博环保材料有限公司 | Light ceramsite prepared from cyanamide slag and preparation method thereof |
| CN111454003A (en) * | 2020-04-29 | 2020-07-28 | 山东海天生物化工有限公司 | Method for recycling return sand in soda production |
| CN114288984A (en) * | 2021-11-16 | 2022-04-08 | 航天凯天环保科技股份有限公司 | Modified lime nitrogen slag composite particle, preparation method thereof and application thereof in stabilized solidification of beryllium-containing solid waste or polluted soil |
| CN114288984B (en) * | 2021-11-16 | 2024-06-11 | 航天凯天环保科技股份有限公司 | Modified lime nitrogen slag composite particles, preparation method thereof and application thereof in stabilizing and solidifying beryllium-containing solid waste or polluted soil |
| CN114590809A (en) * | 2022-01-06 | 2022-06-07 | 北京科技大学 | Preparation of desulfurizer from cyanamide waste residue and carbide slag and recycling of CO2Method (2) |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |