JPH062574B2 - Method for producing P-type zeolite - Google Patents
Method for producing P-type zeoliteInfo
- Publication number
- JPH062574B2 JPH062574B2 JP60014565A JP1456585A JPH062574B2 JP H062574 B2 JPH062574 B2 JP H062574B2 JP 60014565 A JP60014565 A JP 60014565A JP 1456585 A JP1456585 A JP 1456585A JP H062574 B2 JPH062574 B2 JP H062574B2
- Authority
- JP
- Japan
- Prior art keywords
- type zeolite
- coal
- hours
- ash
- producing
- 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.)
- Expired - Lifetime
Links
- 239000010457 zeolite Substances 0.000 title claims description 33
- 229910021536 Zeolite Inorganic materials 0.000 title claims description 32
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims description 32
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 239000010883 coal ash Substances 0.000 claims description 16
- 239000007864 aqueous solution Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 3
- 239000003518 caustics Substances 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 27
- 239000003245 coal Substances 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 9
- 235000011121 sodium hydroxide Nutrition 0.000 description 9
- 239000002956 ash Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- 239000002440 industrial waste Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 238000000634 powder X-ray diffraction Methods 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910001388 sodium aluminate Inorganic materials 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 241000700112 Chinchilla Species 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000010882 bottom ash Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、Ｐ型ゼオライトの製造方法に関する。TECHNICAL FIELD The present invention relates to a method for producing a P-type zeolite.
我が国の中間的なエネルギー需給および石炭利用に関す
る見通しは「長期エネルギー需給暫定見通し」（総合エ
ネルギー調査会需給部会、昭和５４年）、「電力需給の
長期見通し」（電気事業審議会需給部会、昭和５４年）
および「石油代替エネルギー昭和６５年の供給目標」
（通商産業省告示第５５１号、昭和５５年）などに示さ
れている。これらのエネルギー需給暫定見通し中間報告
によれば、今後の石炭利用の拡大は、昭和５２年度の石
炭供給量約７，８００万トンを昭和６５年度に１６，３
５０万トン、昭和７０年度には１９，８００万トンと、
年率５％で増加していくものとなっている。For the outlook for intermediate energy supply and demand and coal use in Japan, “Provisional Long-term Energy Supply and Demand” (Summary Committee for Energy Supply and Demand, 1979), “Long-term Outlook for Electricity Supply and Demand” (Supply and Demand Subcommittee, Electricity Business Council, 1979) Year)
And "Oil alternative energy supply target for 1985"
(Ministry of International Trade and Industry Notification No. 551, 1980). According to the interim report on the provisional outlook for energy supply and demand, the expansion of coal utilization in the future is expected to increase from about 78 million tons of coal in 1968 to 163 million in 1985.
500,000 tons, 198 million tons in 1970
It is increasing at an annual rate of 5%.
このような石炭供給量の約半分、たとえば昭和７０年度
の全供給量１９，８００万トンの内９，３５０万トンが
一般炭であり、一般炭利用拡大の大半をになうのが電気
事業である。石炭火力発電を６，６００万トンと全体の
７割強を占め、セメント製造業が１，２００万トン、そ
の他製鋼業、紙、パルプ製造業、繊維、化学工業、非鉄
金属製造業などが１，５００万トンとなっている。About half of this coal supply, for example, 93.50 million tons out of the total supply of 198 million tons in 1970, is steam coal, and electric power accounts for most of the expansion of steam coal use. Is. Coal-fired power generation is 66 million tons, accounting for more than 70% of the total, cement manufacturing industry is 12 million tons, steel manufacturing industry, paper, pulp manufacturing industry, textile industry, chemical industry, non-ferrous metal manufacturing industry, etc. 5 million tons.
石炭利用の拡大に伴う問題として、管理型産業廃棄物で
ある石炭灰の処理問題は大気汚染と並びに重要であると
考えられる。石炭の中に含まれる１５〜２０％の灰分
は、ボイラーで燃焼石炭灰として、鉄鋼業では高炉スラ
ッグとして、また石炭の液化、ガス化プロセス、コール
クリーニングにおいてもスラッグとして、大量の産業廃
棄物の発生源になる。我が国の石炭火力発電所から発生
する石炭灰の処理実態例は、昭和５３年度で石炭灰の発
生量は２０５万トンであったが、そのうち有効利用量は
５４万トンであったが、そのうち有効利用量は５４万ト
ン弱、利用率は２６．２％であった。有効利用の大部分
はセメント用原材料で、有効利用されなかった１５０万
トン余りの石炭灰は、全量が陸上、内水面および海面で
埋立処分されている。As a problem associated with the expansion of coal utilization, the problem of treating coal ash, which is a managed industrial waste, is considered to be important as well as air pollution. The ash content of 15 to 20% contained in coal is used as combustion coal ash in boilers, as blast furnace slag in the steel industry, and as slag in coal liquefaction, gasification process, and coal cleaning. Become a source. An example of the actual condition of the treatment of coal ash generated from Japan's coal-fired power plants was 50,000 tons of coal ash generated in 1978, of which 540,000 tons were used effectively. The utilization amount was a little less than 540,000 tons, and the utilization rate was 26.2%. Most of the effective use is raw materials for cement, and the 1.5 million tons or more of unused coal ash is completely landfilled on land, inland water and sea.
今後、一般炭の利用拡大によって発生する石炭灰の量
は、電気事業関係分だけでも昭和６０年度で３００万ト
ン、６５年度８００トン、さらに７０年度には１２００
万トンに達すると見積もられる。したがって、石炭灰の
有効利用分野と利用量の拡大を計る開発研究は、今後積
極的かつ大胆に進める必要がある。現在の利用技術の殆
どは、セメント製造ならびにセメント製品関係のもので
将来的にも大幅な需要増は期待できない。また石炭灰の
有効利用の拡大は、単に技術開発のみで達成されるもの
ではなく、加工や輸送に要するコストも重要な因子にな
る。したがって、有効利用問題は石炭灰を発生する地域
の需要特性に強く依存し、また高炉スラッグとの競合に
よっても変化する。In the future, the amount of coal ash generated by the expansion of the use of steam coal will be 3 million tons in 1985, 800 tons in 1985, and 1200 in 1975, even for electricity-related projects
It is estimated to reach 10,000 tons. Therefore, it is necessary to proactively and boldly proceed with the development research for the effective utilization field and expansion of the amount of coal ash. Most of the technologies currently used are related to cement manufacturing and cement products, and we cannot expect a significant increase in demand in the future. Further, the expansion of effective use of coal ash is not achieved simply by technological development, but the cost required for processing and transportation is also an important factor. Therefore, the effective utilization problem depends strongly on the demand characteristics of the area producing coal ash, and also changes due to competition with blast furnace slag.
以上述べた諸情勢を勘案し、石炭灰の有効利用法の拡大
を計り、ひいては石炭利用の円滑な拡大を促進する立場
から、石炭灰中のシリカとアルミナ成分に着目、水熱反
応によるゼオライト化を計画し、合成ゼオライトの廃水
処理、産業廃棄物処理への応用を考えた。Taking into consideration the various situations described above, from the standpoint of expanding the effective utilization method of coal ash and promoting smooth expansion of coal utilization, focusing on silica and alumina components in coal ash, zeolite formation by hydrothermal reaction , And considered the application of synthetic zeolite to wastewater treatment and industrial waste treatment.
従来の合成ゼオライトの製造法は、シリカ源（例えば、
水ガラスあるいはシリカゲル、シリカゾル等）と、アル
ミナ源（酸化アルミニウム、又はアルミン酸ソーダ等）
に苛性ソーダと水を加えて６０゜C−３００゜C程度に数時
間もしくは数１０時間反応させて合成する。ＳｉＯ2，
Ａｌ2Ｏ3，Ｎａ2Ｏの混合比で種類のゼオライト（例え
ばＹ型、Ａ型、Ｐ型など）ができる。Conventional synthetic zeolite production methods are based on silica sources (eg,
Water glass or silica gel, silica sol, etc.) and alumina source (aluminum oxide, sodium aluminate, etc.)
Caustic soda and water are added to the mixture and the mixture is reacted at about 60 ° C to 300 ° C for several hours or several tens of hours to synthesize. SiO 2 ,
Mixture ratios of Al 2 O 3 and Na 2 O can produce various kinds of zeolites (for example, Y type, A type, P type, etc.).
例えば原料のシリカゲルは、非常に高価でありアルミナ
も共に高価であり、したがって従来の合成ゼオライトは
極めて高価なものであった。For example, silica gel as a raw material is very expensive, and alumina is also expensive, so that the conventional synthetic zeolite was extremely expensive.
本発明の目的は、非常に安価なＰ型ゼオライトの製造方
法およびこの製造方法によって作られたＰ型ゼオライト
の用途を提供するものである。An object of the present invention is to provide a very inexpensive method for producing P-type zeolite and use of the P-type zeolite produced by this method.
本発明のＰ型ゼオライトの製造方法は、原料の石炭灰
（フライアッシュ、クリンカアッシュ（ボトムアッシ
ュ）、単一の石炭燃焼灰等）を微粉砕して、１〜４Ｎ程
度の苛性アルカリ水溶液中で６０゜C〜２００゜Cに１０数
時間加熱する。得られた反応混合物から固形物をろ別
し、水洗後乾燥すると、目的とするＰ型ゼオライトが得
られる。The method for producing a P-type zeolite of the present invention is to pulverize raw material coal ash (fly ash, clinker ash (bottom ash), single coal combustion ash, etc.) into a caustic aqueous solution of about 1 to 4 N. Heat to 60-200 ° C for 10 hours. The solid matter is filtered off from the obtained reaction mixture, washed with water and dried to obtain the desired P-type zeolite.
原料の石炭灰は、固形物であるよりは、２００メッシュ
程度に粉砕することが好ましい。粉末の方が反応し易い
からである。The raw material coal ash is preferably pulverized to about 200 mesh rather than being a solid. This is because the powder is easier to react.
反応はアルカリ水溶液中で行うが、水溶液中のアルカリ
度が大きい程反応し易く、しかし、４Ｎを越えると副反
応が起きやすくなるので好ましくない。アルカリとして
は、Ｎａ源を得る目的から苛性ソーダを用いることがで
きる。The reaction is carried out in an alkaline aqueous solution. The greater the alkalinity in the aqueous solution is, the easier the reaction is, but if it exceeds 4N, side reactions are likely to occur, which is not preferable. As the alkali, caustic soda can be used for the purpose of obtaining a Na source.
加熱温度は、６０゜C〜２００゜Cである。６０゜Cよりも低
いと反応が進み難く、２００゜Cを越えると熱的に不経済
となるので好ましくない。加熱時間は加熱温度によって
変わるが１０時間〜２０時間である。The heating temperature is 60 ° C to 200 ° C. If it is lower than 60 ° C, the reaction is difficult to proceed, and if it exceeds 200 ° C, it is thermally uneconomical, which is not preferable. The heating time varies depending on the heating temperature, but is 10 hours to 20 hours.
このようにして生成したＰ型ゼオライトは、例えば走査
電子顕微鏡写真によって確認することができ、その純度
は、例えば粉末Ｘ線回折図によって検定することができ
る。The P-type zeolite thus produced can be confirmed by, for example, a scanning electron micrograph, and its purity can be assayed by, for example, a powder X-ray diffraction pattern.
また、本発明の製造方法により石炭灰から製造したＰ型
ゼオライトは、重金属イオンの選択吸着剤としての用途
に優れた効果を奏する。Further, the P-type zeolite produced from coal ash by the production method of the present invention has an excellent effect as a selective adsorbent for heavy metal ions.
以下、本発明を実施例により説明する。Hereinafter, the present invention will be described with reference to examples.
実施例１ フライアッシュ５０ｇ、３ＮのＮａＯＨ水溶液５００ｃ
ｃを混合し、９０〜１００゜Cで約１８時間加熱し、反応
終了後、固形分をろ別し、水で洗浄液のpHが１０．５に
なるまで充分に洗浄する。そして、１１０゜Cで２４時間
乾燥する。結晶化度約４５％のＰ型ゼオライトが４７．
２ｇ得られた。Example 1 Fly ash 50g, 3N NaOH aqueous solution 500c
c is mixed and heated at 90 to 100 ° C. for about 18 hours. After completion of the reaction, the solid content is separated by filtration and washed thoroughly with water until the pH of the washing solution becomes 10.5. Then, it is dried at 110 ° C for 24 hours. P-type zeolite having a crystallinity of about 45% is 47.
2 g were obtained.
Ｐ型ゼオライトの生成は、走査電子顕微鏡写真により従
来の水ガラス、アルミン酸ナトリウム、水酸化ナトリウ
ムから合成したＰ型ゼオライトと比較して確認した。ま
た、その純度は粉末Ｘ線回折図のＡＳＴＭカードを用
い、ｄ＝３．１８のピーク面積（cm2）で検定した。The formation of P-type zeolite was confirmed by scanning electron micrographs in comparison with conventional P-type zeolite synthesized from water glass, sodium aluminate and sodium hydroxide. The purity was tested by using an ASTM card for powder X-ray diffraction pattern and the peak area (cm 2 ) at d = 3.18.
実施例２ クリンカアッシュ５０ｇ、３ＮのＮａＯＨ水溶液５００
ｃｃを混合し、９０〜１００゜Cで約１８時間加熱し、反
応終了後、固形分をろ別し、水で洗浄液のpHが１０．５
になるまで充分に洗浄する。そして、１１０゜Cで２４時
間乾燥する。結晶化度約４５％のＰ型ゼオライトが４
８．５ｇ得られた。Example 2 Clinker ash 50 g, 3N NaOH aqueous solution 500
cc was mixed and heated at 90 to 100 ° C for about 18 hours. After the reaction was completed, the solid content was filtered off, and the pH of the washing solution was adjusted to 10.5 with water.
Wash thoroughly until. Then, it is dried at 110 ° C for 24 hours. P-type zeolite with a crystallinity of about 45% is 4
8.5 g was obtained.
なお、得られたＰ型ゼオライトの生成および純度は実施
例１と同様の方法で確認した。The production and purity of the obtained P-type zeolite were confirmed by the same method as in Example 1.
実施例３ ウォロンデリー（Wollondily）炭の燃焼灰５０ｇ、２Ｎ
のＮａＯＨ水溶液５００ｃｃを混合し、９０〜１００゜C
で約１６時間加熱し、反応終了後、固形分をろ別し、水
で洗浄液のpHが１０．５になるまで充分に洗浄する。そ
して、１１０゜Cで２４時間乾燥する。結晶化度約７０％
のＰ型ゼオライトが４６．７ｇ得られた。Example 3 Combustion ash of Wollondily charcoal 50 g, 2N
500 cc of NaOH aqueous solution of 90 to 100 ° C
After heating for about 16 hours, the solid content is filtered off after completion of the reaction, and washed sufficiently with water until the pH of the washing liquid becomes 10.5. Then, it is dried at 110 ° C for 24 hours. Crystallinity about 70%
46.7 g of P-type zeolite of was obtained.
なお、得られたＰ型ゼオライトの生成および純度は実施
例１と同様の方法で確認した。The production and purity of the obtained P-type zeolite were confirmed by the same method as in Example 1.
実施例４ 池島炭の燃焼灰５０ｇ、２ＮのＮａＯＨ水溶液５００ｃ
ｃを混合し、９０〜１００゜Cで約２０時間加熱し、反応
終了後、固形分をろ別し、水で洗浄液のpHが１０．５に
なるまで充分に洗浄し、１１０゜Cで２４時間乾燥する。
結晶化度約３５％のＰ型ゼオライトが４３．３ｇ得られ
た。Example 4 Combustion ash of Ikeshima charcoal 50 g, 2N NaOH aqueous solution 500 c
c is mixed and heated at 90 to 100 ° C for about 20 hours. After the reaction is completed, the solid content is separated by filtration, washed thoroughly with water until the pH of the washing solution becomes 10.5, and then at 110 ° C for 24 hours. Dry for an hour.
43.3 g of P-type zeolite having a crystallinity of about 35% was obtained.
得られたＰ型ゼオライトの生成および純度は実施例１と
同様の方法で確認した。The production and purity of the obtained P-type zeolite were confirmed by the same method as in Example 1.
実施例５ チンチラ炭の燃焼灰５０ｇ、２ＮのＮａＯＨ水溶液５０
０ｃｃを混合し、９０〜１００゜Cで約１８時間加熱し、
反応終了後、固形分をろ別し、水で洗浄液のpHが１０．
５になるまで充分に洗浄し、１１０゜Cで２４時間乾燥す
る。結晶化度約６０％のＰ型ゼオライトが４５．９ｇ得
られた。Example 5 Combustion ash of chinchilla charcoal 50 g, 2N NaOH aqueous solution 50
Mix 0 cc and heat at 90-100 ° C for about 18 hours,
After the reaction was completed, the solid content was filtered off, and the pH of the washing liquid was adjusted to 10.
Wash thoroughly to 5 and dry for 24 hours at 110 ° C. 45.9 g of P-type zeolite having a crystallinity of about 60% was obtained.
なお、得られたＰ型ゼオライトの生成および純度は実施
例１と同様の方法で確認した。The production and purity of the obtained P-type zeolite were confirmed by the same method as in Example 1.
実施例６ ワララ炭の燃焼灰５０ｇ、２ＮのＮａＯＨ水溶液５００
ｃｃを混合し、９０〜１００゜Cで約２０時間加熱し、反
応終了後、固形分をろ別し、水で洗浄液のpHが１０．５
になるまで充分に洗浄し、１１０゜Cで２４時間乾燥す
る。結晶化度約５５％のＰ型ゼオライトが４４．８ｇ得
られた。Example 6 Combustion ash of Wallara charcoal 50 g, 2N NaOH aqueous solution 500
cc was mixed and heated at 90 to 100 ° C for about 20 hours. After the reaction was completed, the solid content was filtered off and the pH of the washing solution was adjusted to 10.5 with water.
It is thoroughly washed until it becomes dry and dried at 110 ° C for 24 hours. 44.8 g of P-type zeolite having a crystallinity of about 55% was obtained.
なお、得られたＰ型ゼオライトの生成および純度は実施
例１と同様の方法で確認した。The production and purity of the obtained P-type zeolite were confirmed by the same method as in Example 1.
以上の各実施例において、加熱温度を６０〜２００゜Cの
範囲で変えることによって、この範囲内で所望のＰ型ゼ
オライトが得られることが実験により確かめられた。In each of the above examples, it was confirmed by experiments that the desired P-type zeolite can be obtained within this range by changing the heating temperature within the range of 60 to 200 ° C.
以上説明したように本発明によれば、廃棄物となる石炭
灰を利用するので、従来の合成Ｐ型ゼオライトに比べて
非常に安価なＰ型ゼオライトが得られる。As described above, according to the present invention, since coal ash, which is a waste, is used, a P-type zeolite that is much cheaper than the conventional synthetic P-type zeolite can be obtained.
また、本発明の製造方法により製造されたＰ型ゼオライ
トは、従来のＰ型ゼオライトと同様に、重金属、特にＰ
ｂ、Ｃｄ等に対する選択的吸着性が大である。従って、
種々の金属イオンを含む、例えば産業排水（廃水）、産
業廃棄物よりの浸出水等から安価にＰｂやＣｄなどを除
去できる。また、さらに電炉ダスト等の重金属含有量の
高い産業廃棄物または活性汚染等の金属封入剤としても
利用できる。In addition, the P-type zeolite produced by the production method of the present invention, like the conventional P-type zeolite, contains heavy metals, especially P-type zeolite.
The selective adsorption of b, Cd, etc. is large. Therefore,
Pb, Cd, etc. can be inexpensively removed from, for example, industrial wastewater (wastewater), leachate from industrial waste, etc., containing various metal ions. Further, it can also be used as a metal encapsulant for industrial waste having a high content of heavy metals such as electric furnace dust or active pollution.
Claims (1)
カリ水溶液中で６０゜C〜２００゜Cに１０時間〜２０時間
加熱結晶化させ、反応混合物から固形物をろ取し、水洗
後乾燥することを特徴とするＰ型ゼオライトの製造方
法。1. Coal ash is finely pulverized, heated and crystallized at 60 ° C. to 200 ° C. for 10 to 20 hours in a caustic aqueous solution of 1 to 4 N, and a solid matter is collected from the reaction mixture by filtration. A method for producing a P-type zeolite, which comprises washing with water and then drying.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60014565A JPH062574B2 (en) | 1985-01-30 | 1985-01-30 | Method for producing P-type zeolite |
| JP9234085A JPS61174945A (en) | 1985-01-30 | 1985-05-01 | Selective adsorbent of metallic ion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60014565A JPH062574B2 (en) | 1985-01-30 | 1985-01-30 | Method for producing P-type zeolite |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9234085A Division JPS61174945A (en) | 1985-01-30 | 1985-05-01 | Selective adsorbent of metallic ion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61178416A JPS61178416A (en) | 1986-08-11 |
| JPH062574B2 true JPH062574B2 (en) | 1994-01-12 |
Family
ID=11864674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60014565A Expired - Lifetime JPH062574B2 (en) | 1985-01-30 | 1985-01-30 | Method for producing P-type zeolite |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH062574B2 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6424014A (en) * | 1987-07-21 | 1989-01-26 | Nippon Steel Corp | Production of zeolite composition from fly ash |
| JPH01138115A (en) * | 1987-11-25 | 1989-05-31 | Terunaito:Kk | Method for producing faujasite type zeolite |
| JP2577166B2 (en) * | 1992-07-27 | 1997-01-29 | 新日本製鐵株式会社 | Coal ash reforming method |
| JP2001089133A (en) * | 1999-09-28 | 2001-04-03 | Akio Henmi | Iron-containing artificial zeolite and method for producing the same |
| JP2002029812A (en) * | 2000-07-14 | 2002-01-29 | Akio Henmi | A method to reduce heavy metal elution from cemented solidified soil using artificial zeolite |
| DE102006053921B4 (en) | 2006-11-15 | 2016-11-24 | Dürr Systems Ag | Varnishing machine with a nebulizer and associated operating method |
| JP2010029851A (en) * | 2008-07-04 | 2010-02-12 | Ehime Univ | Coal ash composition and manufacturing method thereof |
| CN106698587A (en) * | 2016-11-25 | 2017-05-24 | 环境保护部华南环境科学研究所 | Phenanthrene and fluoranthene photocatalytic degradation method using fly-ash zeolite load |
| CN106745470A (en) * | 2016-11-25 | 2017-05-31 | 环境保护部华南环境科学研究所 | A kind of zeolite-loaded doped by rare-earths TiO of modified coal ash2The method that catalytic degradation removes anthracene |
| CN108946763B (en) * | 2018-08-27 | 2021-09-28 | 昆明理工大学 | Synthetic method of pentavalent arsenic p-type zeolite adsorbent |
| CN112850726B (en) * | 2021-01-21 | 2023-12-01 | 西安建筑科技大学华清学院 | Geopolymer molecular sieve, preparation method and application |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU775049A1 (en) * | 1978-05-31 | 1980-10-30 | Институт Физической И Органической Химии Им.П.Г.Меликишвили Ан Грузинской Сср | Method of producing philipsite type zeolite |
| JPS56149313A (en) * | 1980-04-22 | 1981-11-19 | Denpatsu Furaiatsushiyu Kk | Manufacture of porous substance |
| JPS5845110A (en) * | 1981-09-10 | 1983-03-16 | Murakashi Sekkai Kogyo Kk | Manufacture of synthetic zeolite using tuffaceous mineral as starting material |
| JPS5935019A (en) * | 1982-08-17 | 1984-02-25 | Sumitomo Sekitan Kogyo Kk | Preparation of zeolite |
| JPS5986687A (en) * | 1982-11-08 | 1984-05-18 | Akio Henmi | Preparation of zeolite-based soil conditioner from coal ash |
-
1985
- 1985-01-30 JP JP60014565A patent/JPH062574B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61178416A (en) | 1986-08-11 |
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