CN105858700A - Novel production technique for preparing calcium chloride from carbide slag - Google Patents
Novel production technique for preparing calcium chloride from carbide slag Download PDFInfo
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- CN105858700A CN105858700A CN201610209497.7A CN201610209497A CN105858700A CN 105858700 A CN105858700 A CN 105858700A CN 201610209497 A CN201610209497 A CN 201610209497A CN 105858700 A CN105858700 A CN 105858700A
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- Prior art keywords
- calcium chloride
- filter
- carbide slag
- novel electric
- rock ballast
- 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.)
- Pending
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- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 title claims abstract description 52
- 239000002893 slag Substances 0.000 title claims abstract description 34
- 239000001110 calcium chloride Substances 0.000 title claims abstract description 31
- 229910001628 calcium chloride Inorganic materials 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title abstract description 20
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000706 filtrate Substances 0.000 claims abstract description 18
- 239000012066 reaction slurry Substances 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 230000032683 aging Effects 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000006228 supernatant Substances 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 239000011435 rock Substances 0.000 claims description 12
- 229920002401 polyacrylamide Polymers 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 230000033228 biological regulation Effects 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 238000005202 decontamination Methods 0.000 claims description 5
- 230000003588 decontaminative effect Effects 0.000 claims description 5
- 239000004615 ingredient Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000005987 sulfurization reaction Methods 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 16
- 238000001914 filtration Methods 0.000 abstract 5
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 235000011148 calcium chloride Nutrition 0.000 description 24
- 230000008569 process Effects 0.000 description 13
- 206010018910 Haemolysis Diseases 0.000 description 8
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- 230000008588 hemolysis Effects 0.000 description 8
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 7
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 7
- 239000000047 product Substances 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 4
- 239000000920 calcium hydroxide Substances 0.000 description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 4
- 229910052593 corundum Inorganic materials 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 229910001629 magnesium chloride Inorganic materials 0.000 description 4
- 230000001629 suppression Effects 0.000 description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910014813 CaC2 Inorganic materials 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C01F11/20—Halides
- C01F11/24—Chlorides
- C01F11/28—Chlorides by chlorination of alkaline-earth metal compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a novel production technique for preparing calcium chloride from carbide slag. The technique comprises the following steps: 1) pouring 25-33% technical hydrochloric acid and carbide slag into a reaction tank, and mechanically stirring for 3 hours to perform neutralization reaction, thereby regulating the pH value to 8.5-9.5; 2) filtering and separating the reaction slurry obtained in the step 1) through a filtering machine, thereby preparing a calcium chloride solution; 3) delivering the calcium chloride solution obtained in the step 2) into a first concentrating tower to perform concentration and impurity removal, and standing in an aging tank for 120-168 hours; 4) pouring the supernatant into a second concentrating tower to perform concentration, delivering the concentrated liquid into a secondary filtering machine, and filtering; and 5) finally, passing the filtrate obtained by the secondary filtering machine through a spray vulcanizing drying machine to obtain the anhydrous calcium chloride.
Description
Technical field
The present invention relates to Calcium Chloride Production technology field, refer in particular to a kind of Novel electric rock ballast system
Take Calcium Chloride Production technique.
Background technology
At present, domestic carbide slag year generation amount about 10,000,000 tons, the main path of its comprehensive utilization is to use
Make to produce the raw material of cement.Scarcely possessing the place utilizing condition, these carbide slags can only be discarded
Store up, do not only take up the land resource of preciousness, it is also possible to neighbouring soil and water body are polluted.
Industrial Solid Waste classification carbide slag belongs to the IIth class general industrial solid waste and (specifies according to GB5086
In the leachate that method carries out leaching test and obtains, one or more pollutant levels are had to surpass
Cross GB8978 the highest permission concentration of emission, or the general industry that pH value is outside 6 to 9 scopes
Solid waste).There are some researches show in the content of 8 heavy metal species of carbide slag, the most less element, as
The content of Cd may cause heavy metal beyond the requirement of soil quality grade III Standard substantially without to soil
Pollute.Being equally based on such factor, carbide slag comprehensive utilization possesses the basic condition that it is intrinsic.
Carbide slag comprehensive utilization belongs to the project that national industrial policies are encouraged for many years, not by regulation and political affairs
The special restriction of plan.But, carbide slag composition is complex, wherein, remaining CaC2, CaS,
Ca3P2, Ca3As2 Deng Cheng branch produces poisonous and harmful substance, for its processing and utilization in process
Bring suitable difficulty.So, carbide slag comprehensive utilization rate is the highest.
Domestic production technical grade calcium chloride typically uses lime stone and hydrochloric acid to be raw material at present, due to lime
The ambient influnence that the restriction of ore resources and great amount of carbon dioxide are discharged, the production development of calcium chloride is by relatively
Big impact.Nangang, Xinjiang group intends existing chlor-alkali plant is carried out transition and upgrade technological transformation, utilizes alkaline output
Hydrochloric acid (hydrogen chloride) and the carbide slag industrial calcium chloride of production polyvinyl chloride resin by-product.This is to combine enterprise
Industry is actual, sets up the innovation of Mode of Circular.But carbide slag produces anhydrous technical grade calcium chloride product
The whole nation there is no mature technology.It is higher that carbide slag has impurity content, and aqueous characteristic, produces with it
There is more technical problem in anhydrous calcium chloride.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its main purpose is to provide one
Novel electric rock ballast produces Calcium Chloride Production technique.
For achieving the above object, the present invention uses following technical scheme: a kind of Novel electric rock ballast system
Calcium chloride, comprises the following steps that
1) first the technical hydrochloric acid of 25～33% is poured in reactive tank mechanical agitation 3 hours with carbide slag
Being neutralized reaction, regulation pH value is 8.5～9.5；
2) then, by step 1) in obtained by reaction slurry through filter carry out filter separate,
Produce calcium chloride solution；
3) then, by step 2) in obtained by calcium chloride solution be delivered in the first concentration tower carry out
In ageing tank, 120-168 hour is stood after concentrating decontamination；
4) then, the supernatant after standing is poured in the second concentration tower and is concentrated, the liquid after concentration
Body is delivered in microfroc filter filter；
5) last, the filtrate after being filtered by microfroc filter is anhydrous by preparing in spraying sulfuration drying machine
Calcium chloride.
Described technical hydrochloric acid with carbide slag ingredient proportion is: ratio, HCl/Ca (OH)==2:
1.05。
Acidolysis reaction temperature 85-95 DEG C, reaction slurry liquid-solid ratio 12.5-13.0:1, reaction slurry proportion
1.32-1.35；
Described step 4) in filtrate to carry out being concentrated into proportion be 1～1.5, add activated carbon, auxiliary agent and
Filter aid, is incubated 0.5 hour at 90 DEG C.
Described auxiliary agent is polyacrylamide, and described filter aid is diatomite.
Described step 1) in carbide slag acid hemolysis process:
Ca(OH)2+ 2HCl=CaCl2+2H2O+197.2kJ/mol.K；
Fe2O3+ 6HCl=2FeCl3+3H2O+Q
Al2O3+ 6HCl=2AlCl3+3H2O+Q
MgO+2HCl=MgCl2+H2O+Q
In carbide slag acid hemolysis process, controlled by rational condition, a large amount of dissolutions of suppression impurity,
But partial impurities therein still can be dissolved in liquid；Being concentrated by filtrate makes impurity component become supersaturation
State constantly separates out, and is purified calcium chloride solution by ageing growing the grain and secondary filter.
The present invention compared with prior art has clear advantage and a beneficial effect, specifically:
1, the anhydrous calcium chloride I that quality meets standard " industrial calcium chloride " GB/T26520-2011 is obtained
Type product；
2, purification and impurity removal process economics, reliable, medicament is prone to buying, low cost, great marketing
It is worth；
3, the present invention uses carbide slag slurries absorbing hydrogen chloride gas calcium chloride, obtained product purity
Height, and preparation process is pollution-free, process safety, environmental protection are reliable.
Detailed description of the invention
Embodiment 1
A kind of Novel electric rock ballast calcium chloride, comprises the following steps that
1) first pour the technical hydrochloric acid of 30% in reactive tank mechanical agitation with carbide slag to carry out for 3 hours
Neutralizing reaction, regulation pH value is 9；
2) then, by step 1) in obtained by reaction slurry through filter carry out filter separate,
Produce calcium chloride solution；
3) then, by step 2) in obtained by calcium chloride solution be delivered in the first concentration tower carry out
In ageing tank, 120 hours are stood after concentrating decontamination；
4) then, the supernatant after standing is poured in the second concentration tower and is concentrated, the liquid after concentration
Body is delivered in microfroc filter filter；
5) last, the filtrate after being filtered by microfroc filter is anhydrous by preparing in spraying sulfuration drying machine
Calcium chloride.
Described technical hydrochloric acid with carbide slag ingredient proportion is: ratio, HCl/Ca (OH)==2:
1.05。
Acidolysis reaction temperature 85-95 DEG C, reaction slurry liquid-solid ratio 12.5:1, reaction slurry proportion 1.32.
Described step 4) in filtrate to carry out being concentrated into proportion be 1, add activated carbon, polyacrylamide,
Diatomite, is incubated 0.5 hour at 90 DEG C；Filtrate: activated carbon, polyacrylamide, diatomaceous matter
Amount ratio is 1:0.03:0.01:0.02.
Described step 1) in carbide slag acid hemolysis process:
Ca(OH)2+ 2HCl=CaCl2+2H2O+197.2kJ/mol.K；
Fe2O3+ 6HCl=2FeCl3+3H2O+Q
Al2O3+ 6HCl=2AlCl3+3H2O+Q
MgO+2HCl=MgCl2+H2O+Q
In carbide slag acid hemolysis process, controlled by rational condition, a large amount of dissolutions of suppression impurity,
But partial impurities therein still can be dissolved in liquid；Being concentrated by filtrate makes impurity component become supersaturation
State constantly separates out, and is purified calcium chloride solution by ageing growing the grain and secondary filter.
Embodiment 2
A kind of Novel electric rock ballast calcium chloride, comprises the following steps that
1) first pour the technical hydrochloric acid of 30% in reactive tank mechanical agitation with carbide slag to carry out for 3 hours
Neutralizing reaction, regulation pH value is 9；
2) then, by step 1) in obtained by reaction slurry through filter carry out filter separate,
Produce calcium chloride solution；
3) then, by step 2) in obtained by calcium chloride solution be delivered in the first concentration tower carry out
In ageing tank, 168 hours are stood after concentrating decontamination；
4) then, the supernatant after standing is poured in the second concentration tower and is concentrated, the liquid after concentration
Body is delivered in microfroc filter filter；
5) last, the filtrate after being filtered by microfroc filter is anhydrous by preparing in spraying sulfuration drying machine
Calcium chloride.
Described technical hydrochloric acid with carbide slag ingredient proportion is: ratio, HCl/Ca (OH)==2:
1.05。
Acidolysis reaction temperature 95 DEG C, reaction slurry liquid-solid ratio 13:1, reaction slurry proportion 1.35；
Described step 4) in filtrate to carry out being concentrated into proportion be 1.5, add activated carbon, polyacrylamide
Amine, diatomite, be incubated 0.5 hour at 90 DEG C；Filtrate: activated carbon, polyacrylamide, diatomite
Mass ratio be 1:0.03:0.01:0.02.
Described step 1) in carbide slag acid hemolysis process:
Ca(OH)2+ 2HCl=CaCl2+2H2O+197.2kJ/mol.K；
Fe2O3+ 6HCl=2FeCl3+3H2O+Q
Al2O3+ 6HCl=2AlCl3+3H2O+Q
MgO+2HCl=MgCl2+H2O+Q
In carbide slag acid hemolysis process, controlled by rational condition, a large amount of dissolutions of suppression impurity,
But partial impurities therein still can be dissolved in liquid；Being concentrated by filtrate makes impurity component become supersaturation
State constantly separates out, and is purified calcium chloride solution by ageing growing the grain and secondary filter.
Embodiment 3
A kind of Novel electric rock ballast calcium chloride, comprises the following steps that
1) first pour the technical hydrochloric acid of 30% in reactive tank mechanical agitation with carbide slag to carry out for 3 hours
Neutralizing reaction, regulation pH value is 9；
2) then, by step 1) in obtained by reaction slurry through filter carry out filter separate,
Produce calcium chloride solution；
3) then, by step 2) in obtained by calcium chloride solution be delivered in the first concentration tower carry out
In ageing tank, 150 hours are stood after concentrating decontamination；
4) then, the supernatant after standing is poured in the second concentration tower and is concentrated, the liquid after concentration
Body is delivered in microfroc filter filter；
5) last, the filtrate after being filtered by microfroc filter is anhydrous by preparing in spraying sulfuration drying machine
Calcium chloride.
Described technical hydrochloric acid with carbide slag ingredient proportion is: ratio, HCl/Ca (OH)==2:
1.05。
Acidolysis reaction temperature 90 DEG C, reaction slurry liquid-solid ratio 12.8:1, reaction slurry proportion 1.33；
Described step 4) in filtrate to carry out being concentrated into proportion be 1.3, add activated carbon, polyacrylamide
Amine, diatomite, be incubated 0.5 hour at 90 DEG C；Filtrate: activated carbon, polyacrylamide, diatomite
Mass ratio be 1:0.03:0.01:0.02.
Described step 1) in carbide slag acid hemolysis process:
Ca(OH)2+ 2HCl=CaCl2+2H2O+197.2kJ/mol.K；
Fe2O3+ 6HCl=2FeCl3+3H2O+Q
Al2O3+ 6HCl=2AlCl3+3H2O+Q
MgO+2HCl=MgCl2+H2O+Q
In carbide slag acid hemolysis process, controlled by rational condition, a large amount of dissolutions of suppression impurity,
But partial impurities therein still can be dissolved in liquid；Being concentrated by filtrate makes impurity component become supersaturation
State constantly separates out, and is purified calcium chloride solution by ageing growing the grain and secondary filter.
The present invention focuses on: obtains quality and meets standard " industrial calcium chloride " GB/T26520-2011
Anhydrous calcium chloride I type product；Purification and impurity removal process economics, reliable, medicament is prone to buying, low cost,
Great market popularization value；The present invention uses carbide slag slurries absorbing hydrogen chloride gas calcium chloride, made
Product purity high, and preparation process is pollution-free, and process safety, environmental protection are reliable.
The above, be only presently preferred embodiments of the present invention, the not technical scope to the present invention
Impose any restrictions, therefore every technical spirit according to the present invention is to made for any of the above embodiments any trickle
Amendment, equivalent variations and modification, all still fall within the range of technical solution of the present invention.
Claims (5)
1. a Novel electric rock ballast calcium chloride, it is characterised in that: comprise the following steps that
1) first pouring the technical hydrochloric acid of 25～33% in reactive tank mechanical agitation with carbide slag and within 3 hours, be neutralized reaction, regulation pH value is 8.5～9.5；
2) then, by step 1) in obtained by reaction slurry through filter carry out filter separate, produce calcium chloride solution；
3) then, by step 2) in obtained by calcium chloride solution be delivered in the first concentration tower to carry out concentrate decontamination after in ageing tank, stand 120-168 hour；
4) then, the supernatant after standing is poured in the second concentration tower and is concentrated, and the liquid after concentration is delivered in microfroc filter filter；
5) last, the filtrate after being filtered by microfroc filter is by preparing anhydrous calcium chloride in spraying sulfuration drying machine.
A kind of Novel electric rock ballast calcium chloride, it is characterised in that: described technical hydrochloric acid with carbide slag ingredient proportion is: ratio, HCl/Ca (OH)==2:1.05.
A kind of Novel electric rock ballast calcium chloride, it is characterised in that: acidolysis reaction temperature 85-95 DEG C, reaction slurry liquid-solid ratio 12.5-13.0:1, reaction slurry proportion 1.32-1.35.
A kind of Novel electric rock ballast calcium chloride, it is characterised in that: described step 4) in filtrate to carry out being concentrated into proportion be 1～1.5, add activated carbon, auxiliary agent and filter aid, 90 DEG C of insulations 0.5 hour.
A kind of Novel electric rock ballast calcium chloride, it is characterised in that: described auxiliary agent is polyacrylamide, and described filter aid is diatomite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610209497.7A CN105858700A (en) | 2016-04-06 | 2016-04-06 | Novel production technique for preparing calcium chloride from carbide slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610209497.7A CN105858700A (en) | 2016-04-06 | 2016-04-06 | Novel production technique for preparing calcium chloride from carbide slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105858700A true CN105858700A (en) | 2016-08-17 |
Family
ID=56627305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610209497.7A Pending CN105858700A (en) | 2016-04-06 | 2016-04-06 | Novel production technique for preparing calcium chloride from carbide slag |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330045A (en) * | 2019-07-17 | 2019-10-15 | 曲靖众一合成化工有限公司 | A method of calcium chloride in recycling permanent violet refined wastewater |
| CN111822480A (en) * | 2020-05-22 | 2020-10-27 | 西北矿冶研究院 | Method for removing carbon from waste carbide slag |
| CN114159963A (en) * | 2021-12-01 | 2022-03-11 | 山东海化集团有限公司 | Method for producing calcium chloride solution by using waste residues generated in alkali preparation through ammonia-soda process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817651A (en) * | 2010-05-17 | 2010-09-01 | 乌海市巨能环保科技开发有限公司 | Recycling method of carbide slag |
| CN102910665A (en) * | 2012-11-06 | 2013-02-06 | 荣殿相 | Method for producing industrial grade calcium chloride by taking calcium carbide slurry as raw material |
-
2016
- 2016-04-06 CN CN201610209497.7A patent/CN105858700A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817651A (en) * | 2010-05-17 | 2010-09-01 | 乌海市巨能环保科技开发有限公司 | Recycling method of carbide slag |
| CN102910665A (en) * | 2012-11-06 | 2013-02-06 | 荣殿相 | Method for producing industrial grade calcium chloride by taking calcium carbide slurry as raw material |
Non-Patent Citations (2)
| Title |
|---|
| 孙尔康等: "《高分子化学与物理实验》", 30 June 2014, 南京大学出版社 * |
| 田蕾等: ""利用电石渣中和工业酸性废水提取氯化钙研究"", 《盐业与化工》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330045A (en) * | 2019-07-17 | 2019-10-15 | 曲靖众一合成化工有限公司 | A method of calcium chloride in recycling permanent violet refined wastewater |
| CN111822480A (en) * | 2020-05-22 | 2020-10-27 | 西北矿冶研究院 | Method for removing carbon from waste carbide slag |
| CN114159963A (en) * | 2021-12-01 | 2022-03-11 | 山东海化集团有限公司 | Method for producing calcium chloride solution by using waste residues generated in alkali preparation through ammonia-soda process |
| CN114159963B (en) * | 2021-12-01 | 2023-05-16 | 山东海化集团有限公司 | Method for producing calcium chloride solution from waste residues generated in alkali preparation by ammonia-soda process |
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Application publication date: 20160817 |