CN1712125A - Defluorinating ionic sieve of drinking water and production thereof - Google Patents
Defluorinating ionic sieve of drinking water and production thereof Download PDFInfo
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- CN1712125A CN1712125A CN 200510013392 CN200510013392A CN1712125A CN 1712125 A CN1712125 A CN 1712125A CN 200510013392 CN200510013392 CN 200510013392 CN 200510013392 A CN200510013392 A CN 200510013392A CN 1712125 A CN1712125 A CN 1712125A
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- polynite
- defluorinating
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- ionic sieve
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Abstract
An ionic sieve for defluorinating the drinking water is compased of the powder of montmorillonite column compound as carrier and one or more of Cu, Ag, Ce and Gd as active component. Its preparing process includes such steps as preparing Ti columning agent, mixing with montmorillonite, calcining, immersing in the solution of said metals, and heating.
Description
Technical field
The present invention relates to defluorinating ionic sieve of a kind of tap water and preparation method thereof, belong to impurity purification techniques in the tap water.
Background technology
Fluorine is as a kind of important trace element, what of intake useful or injurious effects be decided by to health, main rely on underground water as the Rural areas of tap water because the content overproof of fluorine in the drinking-water, cause endemic fluorine poisoning, for this reason, in the report in 1993 years of the World Health Organization fluorine content in the tap water strict regulation have been done, when the content of fluorine is for 0.5-1.0mg/L in pointing out to drink water is needed by human, can prophylaxis of teeth and skeletal diseases, but when the content of fluorine in the solution will be during greater than 1.5mg/L to the toxic effect of human body.Particularly in recent years, because modern industry and Agricultural Development, the application of fluorine and fluorochemicals is increasingly extensive, the amount that fluorine enters in the environment also increases gradually, show the scientific effort day of reducing fluoride content and improving water quality important, carried out the research of using sorbing materials such as gac, aluminum oxide, silico-aluminate that fluorine is adsorbed, these materials all have good adsorption to fluorine in the tap water.
Summary of the invention
The object of the present invention is to provide defluorinating ionic sieve of a kind of tap water and preparation method thereof.Described defluorinating ionic sieve adsorbs fluorion at ambient temperature in tap water, with fluorion absorption in the tap water and reach the purification purpose, its preparation method is simple.
The present invention is realized by following technical proposals.A kind of defluorinating ionic sieve of tap water is characterized in that, at cheating engaging layer post compound powder, load quality is one or both or three kinds or four kinds of copper, silver, cerium or the gadolinium of 0-2% on it.
The preparation method of above-mentioned defluorinating ionic sieve, its process comprise that selecting polynite is base material, and it is pillared to carry out titanium under certain thermodynamic condition, in conjunction with microwave irradiation technology, it is characterized in that comprising the following steps:
1.TiCl
4Be dissolved in the HCl solution of 0.1-5mol/L concentration, then through diluting to such an extent that contain the pillaring solution that Ti concentration is 0.4-0.9mol/L.
2. with the ratio formulated suspension of polynite according to quality 1%-5%, the median size of polynite is the 5-50 micron, pillaring solution slowly is added dropwise to institute joins in the suspension, stirs while dripping.After stirring end, suspension is placed pressure vessel, under 0-5MPa pressure and 10-300 ℃ of temperature condition, left standstill 0-48 hour respectively.Leach then, under 100-120 ℃ of condition, dry.
3. sample is placed muffle furnace, any under room temperature-860 ℃ condition or the heating of a plurality of temperature spot 1-8 hour, furnace cooling, being ground to granularity is the 80-200 order.
4. the polynite with roasting is immersed in respectively under room temperature in ammonium copper sulfate solution, silver nitrate solution, cerous nitrate solution or the gadolinium oxide solution of 0.01mol/L-0.5mol/L, soaks 1-48 hour, filters and takes out.
5. above sample was shone 1-60 minute oven dry under the microwave of 370W.
6. the polynite that step 5 is obtained places muffle furnace to heat 1-8 hour down in 300-400 ℃, makes defluorinating ionic sieve.
7. if polynite is dipped in the silver nitrate solution in 4 set by step, add formaldehyde 5%-10% (wt), soaks after 1-48 hour, left standstill 5 hours in 70-90 ℃ of following lucifuge, to filter and take out, oven dry gets the argentiferous defluorinating ionic sieve.
The invention has the advantages that defluorinating ionic sieve can use at ambient temperature, result of use is good, has the function to absorption of the fluorion degree of depth and purification in the tap water.
Embodiment
Embodiment 1:
TiCl just
4Be dissolved in the HCl solution of 3mol/L, then through diluting to such an extent that Ti concentration is 0.86mol/L; HCl concentration is the pillaring solution of 0.7mol/L, in Ti/ polynite=20meq/g ratio pillaring solution is slowly dripped in 2% montmorillonite suspension liquid that is made under constantly stirring, and the median size of polynite is the 5-50 micron.Through after stirring, leave standstill 12h, solid-liquid separation again, simultaneously with distilled water wash for several times to not having the Cl ion and in 100 ℃ of oven dry down.At last in 600 ℃-650 ℃ following calcining 5h, through grind the titanium pillared montmorillonite, the concentration of titanium pillared montmorillonite with 4% (wt) is immersed in respectively in the ammonium copper sulfate solution of 0.1mol/L, leave standstill 12h after, filtering, dry in 100 ℃.Result of study shows that defluorinating ionic sieve has good adsorption effect to fluorion in the tap water.
Embodiment 2:
With TiCl
4Be dissolved in the HCl solution of 3mol/L, then through diluting to such an extent that Ti concentration is 0.86mol/L; HCl concentration is the pillaring solution of 0.7mol/L, in Ti/ polynite=20meq/g ratio pillaring solution is slowly dripped in 2% (wt) montmorillonite suspension liquid that is made under constantly stirring, and the median size of polynite is the 5-50 micron.After 3 hours stirring, suspension is inserted in the high pressure vessel airtight, be to leave standstill 12h under 300 ℃ of conditions in temperature, suspension takes out after solid-liquid separation, simultaneously with distilled water wash for several times to not having the Cl ion and in 100 ℃ of oven dry down.Calcine 5h down in 600 ℃-650 ℃ at last, through grind the titanium pillared montmorillonite, the concentration of titanium pillared montmorillonite with 4% (wt) is immersed in the silver nitrate solution of 0.1mol/L, after leaving standstill 12h, filtering, in 370 watts of microwave oven internal radiations 10 minutes, in 120 ℃ of oven dry down, make defluorinating ionic sieve again.Result of study shows that the fluorion sieve has good adsorption effect to fluorion in the tap water.
Claims (2)
1. a defluorinating ionic sieve that is used for tap water is characterized in that, at cheating engaging layer post compound powder, load quality is one or both or three kinds or four kinds of copper, silver, cerium or the gadolinium of 0-2% on it.
2. preparation method by the described defluorinating ionic sieve of claim 1, its process comprises that selecting polynite is base material, it is pillared to carry out titanium under certain thermodynamic condition, in conjunction with microwave irradiation technology, it is characterized in that comprising the following steps:
1). with TiCl
4Be dissolved in the HCl solution of 0.1-5mol/L concentration, then through diluting to such an extent that contain the pillaring solution that Ti concentration is 0.4-0.9mol/L;
2). with the ratio formulated suspension of polynite according to quality 1%-5%, the median size of polynite is the 5-50 micron, pillaring solution slowly is added dropwise to institute joins in the suspension, stirs while dripping.After stirring end, suspension is placed pressure vessel, under 0-5MPa pressure and 10-300 ℃ of temperature condition, left standstill 0-48 hour respectively.Leach then, under 100-120 ℃ of condition, dry;
3). sample is placed muffle furnace, any under room temperature-860 ℃ condition or the heating of a plurality of temperature spot 1-8 hour, furnace cooling, being ground to granularity is the 80-200 order;
4). the polynite of roasting is immersed in respectively under room temperature in ammonium copper sulfate solution, silver nitrate solution, cerous nitrate solution or the gadolinium oxide solution of 0.01mol/L-0.5mol/L, soaked 1-48 hour, filter and take out;
5). above sample was shone 1-60 minute oven dry under the microwave of 370W;
6). the polynite that step 5) is obtained places muffle furnace to heat 1-8 hour down in 300-400 ℃, makes defluorinating ionic sieve;
7) if. set by step 4) in polynite is dipped in the silver nitrate solution, add formaldehyde 5%-10% (wt), soaks after 1-48 hour, left standstill 5 hours in 70-90 ℃ of following lucifuge, filter and take out, oven dry gets the argentiferous defluorinating ionic sieve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200510013392 CN1712125A (en) | 2005-04-30 | 2005-04-30 | Defluorinating ionic sieve of drinking water and production thereof |
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| CN 200510013392 CN1712125A (en) | 2005-04-30 | 2005-04-30 | Defluorinating ionic sieve of drinking water and production thereof |
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| CN1712125A true CN1712125A (en) | 2005-12-28 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698710A (en) * | 2012-06-14 | 2012-10-03 | 深圳市华水环保科技有限公司 | Method for preparing nickel removing ion sieve and device for processing nickel wastewater |
| CN102814170A (en) * | 2012-05-30 | 2012-12-12 | 深圳市华水环保科技有限公司 | Preparation method of chromium removal composite ion sieve |
| CN103071452A (en) * | 2013-02-04 | 2013-05-01 | 合肥工业大学 | Method for preparing lanthanum or cerium pillared montmorillonite fluorine removal agent |
| CN104692483A (en) * | 2015-03-19 | 2015-06-10 | 王林双 | Preparation method of compound ion sieve structure filter core |
| CN109012564A (en) * | 2018-07-10 | 2018-12-18 | 北京工业大学 | A method of preparing lithium ion sieve adsorbant |
-
2005
- 2005-04-30 CN CN 200510013392 patent/CN1712125A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814170A (en) * | 2012-05-30 | 2012-12-12 | 深圳市华水环保科技有限公司 | Preparation method of chromium removal composite ion sieve |
| CN102814170B (en) * | 2012-05-30 | 2014-04-09 | 深圳市华水环保科技有限公司 | Preparation method of chromium removal composite ion sieve |
| CN102698710A (en) * | 2012-06-14 | 2012-10-03 | 深圳市华水环保科技有限公司 | Method for preparing nickel removing ion sieve and device for processing nickel wastewater |
| CN102698710B (en) * | 2012-06-14 | 2015-06-03 | 深圳市华水环保科技有限公司 | Method for preparing nickel removing ion sieve and device for processing nickel wastewater |
| CN103071452A (en) * | 2013-02-04 | 2013-05-01 | 合肥工业大学 | Method for preparing lanthanum or cerium pillared montmorillonite fluorine removal agent |
| CN103071452B (en) * | 2013-02-04 | 2014-10-15 | 合肥工业大学 | Method for preparing lanthanum or cerium pillared montmorillonite fluorine removal agent |
| CN104692483A (en) * | 2015-03-19 | 2015-06-10 | 王林双 | Preparation method of compound ion sieve structure filter core |
| CN109012564A (en) * | 2018-07-10 | 2018-12-18 | 北京工业大学 | A method of preparing lithium ion sieve adsorbant |
| CN109012564B (en) * | 2018-07-10 | 2021-03-05 | 北京工业大学 | Method for preparing lithium ion sieve adsorbent |
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