CN1289433C - Efficien SO4 2- removing agent and its production method - Google Patents
Efficien SO4 2- removing agent and its production method Download PDFInfo
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- CN1289433C CN1289433C CN 200510040069 CN200510040069A CN1289433C CN 1289433 C CN1289433 C CN 1289433C CN 200510040069 CN200510040069 CN 200510040069 CN 200510040069 A CN200510040069 A CN 200510040069A CN 1289433 C CN1289433 C CN 1289433C
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- remover
- efficient
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- limestone
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Abstract
The present invention relates to an SO4<2-> remover with high efficiency, and a preparation method thereof. The method comprises the following steps that more than five grades of bauxite ore and limestone are pulverized, sieved with a 200-mesh sieve, fully and uniformly mixed according to a weight proportion of (1:2)to (1:4), calcined at a high temperature of 1360 to 1400 DEG C, quickly cooled after being taken out of a furnace, and pulverized into less than 200 meshes after being cooled, and the alumina in the bauxite ore and the Calcium carbonate in the limestone are calcined. The present invention has the advantages of wide sources of the raw materials, low price, short flow of the production technology, easy operation, good hydration flocculability of water processing agent, and wide application range; flocculating precipitates can be recovered and used as raw materials for cement production, and have no secondary pollution.
Description
Technical field
The invention belongs to scavenging agent field used in the water treatment industry, refer in particular to a kind of efficient SO
4 2-Remover and production method, this treatment agent product is mainly used in domestic water, the purifying treatment of process water and waste water.
Background technology
Along with development of industry and agriculture, the discharging of a large amount of undressed sanitary sewages, basin non-point source trade effluent etc., the Freshwater resources of China are more and more deficienter, especially in western part of China, because a large amount of down-hole waste water of coal mining enterprise's discharging, make SO in the water body
4 2-, F-, NO
2-wait negatively charged ion and heavy metal ion to exceed standard, people's drinking water source is subjected to bigger threat, handles the healthy of bad direct harm people.
Process is consulted domestic water treatment technology aspect, and domestic existing relevant SO is found in the research of pertinent literature
4 2-The technology of remover has following several:
<1〉belong to the flocculation agent aspect of pharmaceutical chemicals, class such as polymerize aluminum chloride, polymeric ferric salt, polymer aluminium silicate etc. have been characterized in good throwing out, can effectively remove suspended particle in the water body and colourity etc., reduce COD, but for SO in the water body
4 2--removal effect is bad.
<2〉belong to the electrochemistry aspect, class such as osmosis, reverse osmosis, electric floating, ion-exchange etc., though removal effect is more satisfactory, its technical requirements height, costing an arm and a leg makes these methods not to be extensive use of.
<3〉domestic have a patent application 97116888.1, and it adopts bauxite and Wingdale is raw material, mixed by weight 3: 6, generate through twice calcining of low temperature, firing temperature is 700 ℃, and firing time needs 3-8 hour approximately. this treatment agent effect is better, but it is complicated that sintering technology shows, and the time is longer.
Summary of the invention
The purpose of this invention is to provide a kind of SO efficiently
4 2-Remover, the flow process that simplifies the operation effectively reduces cost. and this remover cooperates corresponding treatment process and working method, to the SO in the water body
4 2-Extraordinary removal effect is arranged, can reach the standard of the tap water of national regulation after the processing, simultaneously to F
-, NO
2 -, Cl
-, Cr, Mo, Se, As, organic acid ion and heavy metal ion etc. also have treatment effect preferably.
Realize that technical scheme of the present invention is:
<1〉be a kind of by the bauxitic ore and the Wingdale that adopt more than the Pyatyi, by weight 1: 2~1: 4 proportioning, through the inorganic complex that high-temperature calcination generates, its main composition was Ca
3Al
2O
6, Ca
4Al
2O
7, Ca
12Al
14O
33, its total content 〉=60%.
<2〉its production method is as follows:
Raw material adopts the above bauxitic ore of Pyatyi, its Al
2O
3Content 〉=58%, Al/Si 〉=4, at first above-mentioned bauxitic ore and limestone powder are broken to by 200 mesh sieves, even according to 1: 2~1: 4 proportioning thorough mixing of weight ratio, under 1360 ℃~1400 ℃ high temperature, calcine 1.5h~2h, carry out chilling after coming out of the stove, be crushed to after cooling below 200 orders, at this moment aluminum oxide (the Al in the bauxitic ore
2O
3) with Wingdale in lime carbonate (CaCO
3) after calcining, generated a kind of inorganic complex that contains aluminium, calcium ion, be efficient SO
4 2-Remover.
This remover in water after fully stirring aquation and with water body in SO
4 2-Form stable indissoluble thing, good flocculation sediment effect is arranged simultaneously.
Advantage of the present invention and effect:
This efficient SO
4 2-The technological process of production of remover is simple, easy and simple to handle, the processing parameter that is adopted requires low, production time is short, and relative cost is very cheap. can aquation after this remover adds in the entry and throwing out is arranged, can interact with negatively charged ion, heavy metal ion in the water simultaneously, form stable indissoluble thing, and with the flco precipitation, thereby make water quality be purified, reach drinking water standard.
Embodiment
Below be embodiments of the invention:
Embodiment 1:
With the above bauxite (Al of Pyatyi
2O
3Content 68%, SiO
2Content 14%) and Wingdale separated pulverizing to 200 order carry out thorough mixing by 1: 4 weight ratio, 1360 ℃ temperature lower calcinations 1.5 hours, come out of the stove to be chilled to normal temperature and to be crushed to 200 orders and promptly produce efficient S0
4 2-Remover.The bittern of sulphate-containing ion concentration 4500mg/L adds this efficient remover 4 grams after Calx preconditioning, can make that sulfate ion concentration is reduced to 202mg/L in the water.
Embodiment 2:
With the above bauxite (Al of Pyatyi
2O
3Content 68%, SiO
2Content 14%) and Wingdale separated pulverizing to 200 order carry out thorough mixing by 1: 2.5 weight ratio, at 1400 ℃ of temperature lower calcinations after 1.5 hours, come out of the stove be chilled to normal temperature and be crushed to 200 orders after packing be efficient SO
4 2-Remover, these efficient remover 3 grams add in the waste water of mine of Shanxi sulfur-bearing acid group 565mg/L the treated 50mg/L that is reduced to.
Embodiment 3:
With the above bauxite (Al of Pyatyi
2O
3Content 64%, SiO
2Content 11%) and Wingdale separated pulverizing to 200 order carry out thorough mixing by 1: 2 weight ratio, at 1380 ℃ temperature lower calcinations after 1.5 hours, coming out of the stove is chilled to normal temperature and is crushed to 200 orders and promptly produces efficient SO
4 2-Remover, this efficient remover 4g adds in the Zhenjiang power plant river on every side, and sulfur-bearing acid group 700mg/L can be reduced to 30mg/L after the processing in the river.
Embodiment 4:
With the above bauxite (Al of Pyatyi
2O
3Content 58%, SiO
2Content 12%) and Wingdale separated pulverizing to 200 order carry out thorough mixing by 1: 3.5 weight ratio, at 1360 ℃ temperature lower calcinations after 2 hours, coming out of the stove is chilled to normal temperature and is crushed to 200 orders and promptly produces efficient SO
4 2-Remover, this efficient remover 4g adds in the waste water of certain sulfur-bearing acid group 550mg/L, can be reduced to 100mg/L after treatment.
Embodiment 5:
With the above bauxite (Al of Pyatyi
2O
3Content 58%, SiO
2Content 12%) and Wingdale separated pulverizing to 200 order carry out thorough mixing by 1: 2 weight ratio, at 1400 ℃ temperature lower calcinations after 2 hours, coming out of the stove is chilled to normal temperature and is crushed to 200 orders and promptly produces efficient S0
4 2-Remover, this efficient remover 3g adds in the waste water of mine of Shanxi sulfur-bearing acid group 565mg/L, can be reduced to 80mg/L after treatment.
Claims (2)
1. efficient SO
4 2-Remover is characterized in that being a kind of inorganic complex through the high-temperature calcination generation that its main composition is Ca
3Al
2O
6, Ca
4Al
2O
7, Ca
12Al
14O
33, its total content 〉=60%.
2. according to the described efficient SO of claim 1
4 2-The production method of remover is characterized in that:
(1) raw material adopts the above bauxitic ore of Pyatyi, its Al
2O
3Content 〉=58%, Al/Si 〉=4 at first are broken to above-mentioned bauxite and limestone powder by 200 mesh sieves, and are even according to 1: 2~1: 4 proportioning thorough mixing of weight ratio;
(2) under 1360 ℃~1400 ℃ high temperature, calcine 1.5h~2h, carry out chilling after coming out of the stove;
(3) be crushed to below 200 orders after the cooling, can get efficient SO
4 2-Remover.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200510040069 CN1289433C (en) | 2005-05-18 | 2005-05-18 | Efficien SO4 2- removing agent and its production method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200510040069 CN1289433C (en) | 2005-05-18 | 2005-05-18 | Efficien SO4 2- removing agent and its production method |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1709825A CN1709825A (en) | 2005-12-21 |
CN1289433C true CN1289433C (en) | 2006-12-13 |
Family
ID=35706121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200510040069 Expired - Fee Related CN1289433C (en) | 2005-05-18 | 2005-05-18 | Efficien SO4 2- removing agent and its production method |
Country Status (1)
Country | Link |
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CN (1) | CN1289433C (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102806145A (en) * | 2012-07-27 | 2012-12-05 | 中国铝业股份有限公司 | Method for performing beneficiation and desulfurization on bauxite |
CN102730813A (en) * | 2012-07-31 | 2012-10-17 | 北京盖雅技术中心有限公司 | Efficient cation/anion remover and preparation method thereof |
CN107758959A (en) * | 2017-10-11 | 2018-03-06 | 镇江市中运城市环境治理股份有限公司 | A kind of processing method of industrial wastewater |
CN108640175A (en) * | 2018-05-24 | 2018-10-12 | 焦作市远润环保科技有限公司 | A kind of production method of purifying agent |
-
2005
- 2005-05-18 CN CN 200510040069 patent/CN1289433C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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CN1709825A (en) | 2005-12-21 |
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PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061213 |