JPS6071519A - Manufacture of crystalline aluminosilicate - Google Patents

Manufacture of crystalline aluminosilicate

Info

Publication number
JPS6071519A
JPS6071519A JP17700783A JP17700783A JPS6071519A JP S6071519 A JPS6071519 A JP S6071519A JP 17700783 A JP17700783 A JP 17700783A JP 17700783 A JP17700783 A JP 17700783A JP S6071519 A JPS6071519 A JP S6071519A
Authority
JP
Japan
Prior art keywords
crystalline
seed crystal
crystalline aluminosilicate
org
contg
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
Application number
JP17700783A
Other languages
Japanese (ja)
Inventor
Sachio Asaoka
佐知夫 浅岡
Tadami Kondo
忠美 近藤
Shinichi Nakada
真一 中田
Hiroaki Nishijima
裕明 西島
Isao Suzuki
功 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chiyoda Corp
Chiyoda Chemical Engineering and Construction Co Ltd
Original Assignee
Chiyoda Corp
Chiyoda Chemical Engineering and Construction Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chiyoda Corp, Chiyoda Chemical Engineering and Construction Co Ltd filed Critical Chiyoda Corp
Priority to JP17700783A priority Critical patent/JPS6071519A/en
Publication of JPS6071519A publication Critical patent/JPS6071519A/en
Pending legal-status Critical Current

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  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Catalysts (AREA)

Abstract

PURPOSE:To obtain a product contg. no org. contaminant by preparing crystalline aluminosilicate from crystalline aluminosilicate synthesized using an org. additive as seed crystals and an aqueous starting material mixture contg. no org. additive and by repeating operation using the prepd. aluminosilicate as seed crystals. CONSTITUTION:Part of crystalline aluminosilicate synthesized by using an org. additive as seed crystals and an aqueous starting material mixture contg. an SiO2 source, an AlO3 source and an alkali metallic salt and not contg. an org. additive are held under conditions during hydrothermal synthesis to synthesize crystalline aluminosilicate contg. practically no org. impurities. Part of this aluminosilicate as seed crystals and an aqueous starting material mixture contg. an SiO2 source, an Al2O3 source and an alkali metallic salt and not contg. an org. additive are held under conditions during hydrothermal synthesis. Crystalline aluminosilicate contg. practically no org. additive can be manufactured.

Description

【発明の詳細な説明】 本発明は結晶性アルミノンリケードの新規な製造方法に
関する。特に本発明は有機添加物を含まない原料混合物
を用いて高純度で有機物に汚染されていない結晶性アル
ミノシリケートを製造する方法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel method for producing crystalline aluminonilicades. In particular, the present invention relates to a method for producing crystalline aluminosilicate of high purity and uncontaminated by organic substances using a raw material mixture that does not contain organic additives.

結晶性アルミノシリケートはゼオライトとして天然のも
のや合成されたものが数多く知られている。これらの結
晶性アルミノシリケートは多数の立体構造をなす細孔を
有し、モノキュラーシーブとして吸着剤やガスの分離等
に用いられ、最近はまた、例えば炭化水素のクラッキン
グ、ハイドロクラッキング、異性化等の炭化水素の転換
用触媒等として広く用いられるようになってきた。。
Many natural and synthetic crystalline aluminosilicates are known as zeolites. These crystalline aluminosilicates have many pores forming a three-dimensional structure and are used as monocular sieves for adsorbents and gas separation, and recently they have also been used for cracking, hydrocracking, isomerization, etc. It has come to be widely used as a catalyst for hydrocarbon conversion. .

これらの結晶性アルミノシリケートは一般にシリカ源、
アルミナ源、アルカリ金属塩等を含む水性混合物を水熱
合成条件下に保持することによって製造しているが目的
とするゼオライトの結晶成長を速め純度の高い(他の結
晶系の混在しない)製品を得るために種々の有機添加物
が用いられている。例えばZMS −5ゼオライトはテ
トラプロピルアンモニウムブロマイド等の四級アンモニ
ウム塩が用いられておシ(米国特許第3.702.38
6号、特公昭46−10064号公報等)、またこのよ
うな四級アンモニウム塩以外の種々の有機添加物を用い
ることも提案されている。
These crystalline aluminosilicates are generally sourced from silica,
It is manufactured by holding an aqueous mixture containing an alumina source, alkali metal salts, etc. under hydrothermal synthesis conditions, which speeds up the crystal growth of the target zeolite and produces a product with high purity (no other crystal systems mixed in). Various organic additives are used to obtain it. For example, ZMS-5 zeolite is produced using quaternary ammonium salts such as tetrapropylammonium bromide (U.S. Pat. No. 3,702,38
6, Japanese Patent Publication No. 46-10064, etc.), it has also been proposed to use various organic additives other than such quaternary ammonium salts.

このような有機添加物の使用は目的とするゼオライトの
成長を速め純度を良くシ、良質の製品が得られると云う
効果があるが、コストが高いと共にその一部には毒性に
問題があるものもあると太う欠点があった。又、含窒素
化合物を有機添加物として用いた場合、焼成操作を施し
ても、その添加物は有機汚染物として残留することが確
昭されている。
The use of such organic additives has the effect of accelerating the growth of the target zeolite and improving its purity, resulting in a high-quality product, but it is costly and some of them have toxicity problems. It also had the disadvantage of making you fat. Furthermore, it has been confirmed that when a nitrogen-containing compound is used as an organic additive, the additive remains as an organic contaminant even after the firing operation.

これらの欠点を除くために有機添加物を用いないでゼオ
ライトを製造する方法が提案されている。
In order to eliminate these drawbacks, methods for producing zeolite without using organic additives have been proposed.

例えば、有機添加物を全く含まないシリカ、アルミナ、
アルキル金属塩等よりなる水性原料混合物を自然圧で8
0〜210℃、4′0〜200時間保持してゼオライト
を生成する方法(特公昭56−49851号公報)や、
上記の如き有機添加物を全く含まない水性原料混合物に
結晶性ゼオライトの粉末を存在させてゼオライi生成す
る方法(特公昭57−7819号公報)が提案されてい
る。
For example, silica, alumina, which does not contain any organic additives,
An aqueous raw material mixture consisting of alkyl metal salts, etc.
A method of producing zeolite by holding at 0 to 210°C for 4'0 to 200 hours (Japanese Patent Publication No. 56-49851),
A method has been proposed (Japanese Patent Publication No. 7819/1983) for producing zeolite i by allowing crystalline zeolite powder to be present in an aqueous raw material mixture that does not contain any organic additives as described above.

しかしながら、前者の方法で得られたゼオライト中には
モルデナイトが共存し、良質のゼオライト結晶が得られ
ず、後者は製造ごとにゼオライト粉末を周章しなければ
ならないという面倒があり、かつ種子として使用された
ゼオライトに起因した有機汚染物を含むという欠点があ
った。
However, mordenite coexists in the zeolite obtained by the former method, making it difficult to obtain high-quality zeolite crystals, and the latter method involves the trouble of having to circulate the zeolite powder each time it is produced, and is not used as seeds. The drawback was that it contained organic contaminants caused by zeolite.

上記後者の方法ではモルデナイト等が共存しない純度の
良いゼオライトが得られるが、これは種結晶として用い
られるゼオライトが、テトラアルキルアンモ巨つム塩等
の有機添加物を使用して得たものであり、種結晶にわす
かに残っている有機添加物が次工程の結晶生成に何らか
の影響を与えているためと考えられたのであるが、本発
明者等はこのようにして得られたゼオライトあるいけ母
液ゲルの少量を種結晶として用い同様な水熱合成反応を
行っても同様にモルデナイト等の共存しない純度の高い
ゼオライトを得ることができることと、次後同様な操作
を〈シ返しても同様に有機汚染物のない高純度のゼオラ
イトが得られることを見出し、本発明を達成した。
In the latter method described above, a zeolite of good purity without the coexistence of mordenite etc. can be obtained, but this is because the zeolite used as the seed crystal is obtained by using organic additives such as tetraalkyl ammonium salts. It was thought that the organic additives slightly remaining in the seed crystals had some influence on the crystal formation in the next step, but the inventors found that the zeolite and crystals obtained in this way Even if a similar hydrothermal synthesis reaction is carried out using a small amount of the mother liquor gel as a seed crystal, it is possible to obtain highly pure zeolite that does not coexist with mordenite, etc.; The present invention was achieved by discovering that highly pure zeolite free of organic contaminants can be obtained.

本発明に於て種結晶として使用する上記母液ゲル中ある
いはゼオライトには、その前段の種結晶合成工程に於て
使用する種結晶と異なり、結晶成長促進及び純度向上の
ために用いられる有機添加物ないし有機汚染物が実質的
に含まれないにも拘らず、このような結晶が得られたこ
とけ、驚くべきことである。。
In the mother liquor gel or zeolite used as a seed crystal in the present invention, organic additives are used to promote crystal growth and improve purity, unlike the seed crystal used in the preceding seed crystal synthesis step. It is surprising that such crystals were obtained even though they were substantially free of organic contaminants. .

すなわち、本発明は、有機添加物を用いて合成した結晶
性アルミノシリケートの一部を種結晶とし、これと7リ
カ源、アルミナ源、及びアルカリ金属塩を含み有機添加
物を含まない水性原料混合物を水熱合成条件下に保持し
て実質的に有機添加物ヲ含まない結晶性アルミノンリケ
ードを生成せしめる種結晶合成工程と、その合成工程で
得られた結晶性アルミノンリケードの一部を種結晶とし
、これとシリカ源、アルミナ源、及びアルカリ金属塩を
含み有機添加物を含まない水性原料混合物を水熱合成条
件下に保持して実質的に有機添加物を含まない結晶性ア
ルミノンリケードを製造する製品製造工程からなること
を特徴とする結晶性アルミノンリケードの製造方法であ
る。
That is, in the present invention, a part of crystalline aluminosilicate synthesized using an organic additive is used as a seed crystal, and an aqueous raw material mixture containing this, a 7-liquid source, an alumina source, and an alkali metal salt and containing no organic additives is used. A seed crystal synthesis step in which the crystalline aluminone liquede is maintained under hydrothermal synthesis conditions to produce a crystalline aluminone licade substantially free of organic additives; A crystalline aluminone licade substantially free of organic additives is produced by maintaining the crystals and an aqueous raw material mixture containing a silica source, an alumina source, and an alkali metal salt under hydrothermal synthesis conditions without containing organic additives. A method for producing crystalline aluminonilicade, characterized by comprising a product production process for producing.

本発明で用いられる無機質原料としては、ZSM−5ゼ
オライト等の結晶性アルミノクリケートの製造に用いら
れる材料はすべて用いることができる。
As the inorganic raw material used in the present invention, all materials used in the production of crystalline aluminosilicate such as ZSM-5 zeolite can be used.

すなわち、シリカ源としてはシリカ粉末、けい酸、コロ
イド状シリカ、溶解シリカ等が用いられ、アルミナ源と
してはアルミニウムの硫酸塩、硝酸塩等やアルミン酸ナ
トリウム、コロイド状アルミナ、アルミナ等が用いられ
、′またアルカリ金属塩としては、ナトリワム、力゛リ
ウム、ルビジウム等の水酸化物が用いられる。
That is, as a silica source, silica powder, silicic acid, colloidal silica, dissolved silica, etc. are used, and as an alumina source, aluminum sulfate, nitrate, etc., sodium aluminate, colloidal alumina, alumina, etc. are used. As the alkali metal salt, hydroxides such as sodium hydroxide, hydrium, and rubidium are used.

本発明に於いて使用する種結晶を得るための種結晶合成
工程で用いられる種結晶としては例えばZMS −5ゼ
オライトの如き有機添加物を用いて得られた結晶性アル
ミノシリケート製品の一部であっても、実験室規模で有
機添加物を用いて少量作った結晶性アルミナシリケート
の母液ゲル又はその乾燥物、焼成物であってもよい。(
本発明では、これらを含めて結晶性アルミノシリケート
の一部と総称しである)。即ちこの合成工程で用いられ
る種結晶には有機添加物ないし有機汚染物が含まれてい
るものである。
The seed crystal used in the seed crystal synthesis step to obtain the seed crystal used in the present invention may be a part of a crystalline aluminosilicate product obtained using an organic additive such as ZMS-5 zeolite. Alternatively, it may be a mother liquor gel of crystalline alumina silicate prepared in a small amount on a laboratory scale using organic additives, or a dried or fired product thereof. (
In the present invention, these are collectively referred to as part of crystalline aluminosilicate). That is, the seed crystal used in this synthesis step contains organic additives or organic contaminants.

このような種結晶と前記の7リカ源、アルミナ源、アル
カリ金属塩を含んだ水性混合物を水熱合成条件下、すな
わち、40℃〜250℃、1時間〜100時間の範囲で
ゼオライトが生成するまで保持することによって結晶性
アルミノシリケートft製造する。このようにして得ら
れた結晶性アルミノンリケードは実質的に有機添加物な
いし有機汚染物を含んでおらず且つ種結晶に用いた結晶
性アルミノシリケートと殆んど同様な純度と結晶構造を
有しており、製品として用いることができる。
A zeolite is produced by using an aqueous mixture containing such seed crystals, the above-mentioned 7-liquor source, an alumina source, and an alkali metal salt under hydrothermal synthesis conditions, that is, at 40° C. to 250° C. for 1 hour to 100 hours. Crystalline aluminosilicate ft is produced by holding up to ft. The crystalline aluminosilicate thus obtained is substantially free of organic additives or contaminants and has almost the same purity and crystal structure as the crystalline aluminosilicate used as the seed crystal. and can be used as a product.

すなわち、この系には、種結晶に含まれていた有機添加
物が存在するが、種結晶の量は後記するように極く小量
であるので得られた製品中に存在する有機添加物ないし
有機汚染物の濃度は極めて小さく、“実質的には含まれ
ず“と云うことができる。
In other words, in this system, there are organic additives contained in the seed crystals, but since the amount of the seed crystals is extremely small as described later, the organic additives present in the obtained product are The concentration of organic contaminants is so small that it can be said to be "substantially free."

次いでこのようにして得られた結晶性アルミノンリケー
ドの母液ゲルの一部を種結晶として用い同様な水熱合成
反応を行わせる。この製品製造工程で用いられる種結晶
には前記のように有機添加物ないし有機汚染物は殆んど
含まれていないにも拘わす、純度が高く、種結晶と殆ん
ど同様な結晶構造を有する精品性アルミノンリケードが
得られ、さらに同様な工程、すなわち、この工程で得ら
れた結晶性アルミノンリケードの母液ゲルを種結晶とし
て同様な水熱合成反応を行う工程をくシ返しても同様な
結果が得られる。
Next, a similar hydrothermal synthesis reaction is carried out using a portion of the thus obtained mother liquor gel of crystalline aluminone licade as a seed crystal. Although the seed crystals used in the manufacturing process of this product contain almost no organic additives or organic contaminants as mentioned above, they are highly pure and have a crystal structure almost the same as the seed crystals. By repeating the same process, that is, carrying out a similar hydrothermal synthesis reaction using the mother liquor gel of the crystalline aluminone licade obtained in this process as a seed crystal. Similar results are obtained.

本発明は、上述の如く種結晶合成工程とこれによって得
られた種結晶を用いて製品ゼオライトを製造する製品製
造工程からなシ、製造工程で用いられ種結晶は、合成工
程あるいけ製造工程で得られた結晶性アルミノシリフー
ト1−乾燥又はか焼して粉末状にしたものでもよいが、
操作を連続的に行うためには母液ゲルの状態でその一部
を次工程に移すことが好ましい。すなわち、オートクレ
ーブ等の反応容器の出口から取り出される生成物の母液
ゲルの一部を同容器に入口にもどし、新たな無機質原料
と共に反応系に供給することによって結晶性アルミノン
リケードの製造を連続的に行わせることができる。。
As mentioned above, the present invention does not include the seed crystal synthesis step and the product manufacturing step of manufacturing a product zeolite using the seed crystal obtained thereby, and the seed crystal used in the manufacturing step is used in the synthesis step or the manufacturing step. The obtained crystalline aluminosilicate 1 may be dried or calcined into a powder, but
In order to carry out the operation continuously, it is preferable to transfer a portion of the mother liquid gel to the next step. In other words, a part of the product mother liquor gel taken out from the outlet of a reaction vessel such as an autoclave is returned to the inlet of the same vessel, and is supplied to the reaction system together with new inorganic raw materials to continuously produce crystalline alumino-licade. can be made to do so. .

本発明では、また一つの反応容器を用いてパッチ式に操
作してもよく、さらに二つ又はそれ以上の反応容器を用
いて準連続式に行ってもよい。
The present invention may also be operated in a patch manner using one reaction vessel, or may be operated in a semi-continuous manner using two or more reaction vessels.

本発明で用いられる種結晶の址は、何れの工程において
もゼオライト基準で水性原料混合物の0.1〜3重険係
程度で十分である。種結晶の旨が余シ少ないと、純度の
高い製品が得られず、また余〕多いと収量を下げること
になシ好ましくない。
The amount of seed crystals used in the present invention is sufficient in any process to be about 0.1 to 3 times higher than the aqueous raw material mixture based on the zeolite. If the amount of seed crystals is too small, a product with high purity cannot be obtained, and if there is too much, the yield will be lowered, which is undesirable.

以上のべたように、本発明によるときは、最初の種結晶
として有機添加物ないし有機汚染物を含んだ結晶性アル
ミノシリケートを少量用いるだけとができ、また生成物
の母液ゲルの一部を種結晶としてフィードバックする態
様を採れば、有機添加物ないし有機汚染物を含まない良
質の結晶性アルミノンリケードを連続的に製造すること
ができる。
As described above, according to the present invention, only a small amount of crystalline aluminosilicate containing organic additives or organic contaminants can be used as the initial seed crystal, and a part of the product mother liquor gel can be used as the seed crystal. By employing the mode of feeding back as crystals, it is possible to continuously produce high quality crystalline aluminium non-licade containing no organic additives or organic contaminants.

又、本発明の方法を連続操作で行う場合、滞留時間、温
度、圧力等の操作条件を選択することによジスタートア
ップ時のみ有機添加物を用いて結晶性アルミノンリケー
ドを生成し、その後は有機添加物を全く添加することな
く良質の結晶性アルミノシリケートを連続的に製造する
こともできる。
In addition, when the method of the present invention is carried out continuously, by selecting operating conditions such as residence time, temperature, and pressure, organic additives are used only at the time of di-startup to produce crystalline aluminonricade, and thereafter. It is also possible to continuously produce high quality crystalline aluminosilicate without adding any organic additives.

以下、実施例によって本発明を説明する。The present invention will be explained below with reference to Examples.

比較例1 アルミン酸ソーダ(和光紬薬工業製A□a原子比0.7
8)2.42F、カセイソーダ(和光紬薬工業製 特級
) 9.1 Ofを水296fに溶解し、この溶液ヘン
リカゾル溶液(8産化学工業製スノーテックス30の1
56tf:水296 ftLc希釈したもの)452t
を添加混合し母液ゲルを調合した。
Comparative Example 1 Sodium aluminate (manufactured by Wako Tsumugi Kogyo A□a atomic ratio 0.7
8) Dissolve 2.42F, caustic soda (special grade manufactured by Wako Tsumugi Kogyo Co., Ltd.) 9.1 Of in 296 F of water, and add this solution to Henricasol solution (Snowtex 30, manufactured by 8 San Kagaku Kogyo Co., Ltd.).
56tf: 296 ftLc diluted water) 452t
were added and mixed to prepare a mother liquid gel.

この母液ゲルをパイレックス製オートクレーブにセット
し、180℃にて3日間自己発生圧力下に保持しゼオラ
イト化を行なわしめた。反応終了後、生成物の濾過を行
い、更に毎回1tの蒸留水にて3回洗浄した。その後1
20℃で乾燥後空気気流中5socで3時間焼成した。
This mother liquor gel was placed in a Pyrex autoclave and kept under self-generated pressure at 180° C. for 3 days to form a zeolite. After the reaction was completed, the product was filtered and washed three times with 1 ton of distilled water each time. then 1
After drying at 20° C., it was fired for 3 hours at 5 soc in an air stream.

このものの粉末X1fM回折結果、ゼオライトの結晶性
は低くかつZSM −5とモルデナイトの混在するもの
であった。
As a result of powder X1 fM diffraction of this product, the crystallinity of the zeolite was low and ZSM-5 and mordenite were present together.

比較例2 比較例1の同様の操作ではあるが母液ゲルに更に有機添
加物としてテトラプロピルアンモニウムブロマイド19
5tを加えてはげしく攪拌したものを母液ゲルとして使
用した場合には、高結晶性のzsM −5(粉末X線回
折にて確認)が得られた。
Comparative Example 2 Same operation as Comparative Example 1, but tetrapropylammonium bromide 19 was added to the mother liquor gel as an organic additive.
When 5t was added and vigorously stirred and used as a mother liquor gel, highly crystalline zsM-5 (confirmed by powder X-ray diffraction) was obtained.

しかし、このZSM −5は、FT−工Rで測定したと
ころ1404.−1および1470−一1に残留する有
機物に起因する吸収が確認された。
However, this ZSM-5 measured 1404. Absorption caused by residual organic matter in -1 and 1470-1 was confirmed.

実施例 アルミン酸ソーダ(和光紬薬工業製AIAa原子比α7
8)2.42f、カセイソーダ(和光紬薬工業製、特級
) 9.10 tを水296 tT/C溶解し、この溶
液へ7リカゾル溶液(8産化学製、スノーテックス30
の1561Ft−水296fにて希釈したもの)452
fを添加混合し有機添加物を含まない母液ゲルt−調合
した。これに比較例2で得られたZSM −5を1.0
を種結晶として添加しこの液をパイレックス製オートク
レーブにセットし、180℃にて24時間自己発生圧力
下に保持ゼオライト化を行い沈殿として得られた含水ゼ
オライトの一部2fを別途調合した上記有機添加物を含
まない母液ゲル中に添加し同様に180℃で24時間保
持した。反応終了後生成物の濾過を行い、更に毎回1t
の蒸留水にて3回洗浄した。その後130℃で乾燥後空
気気液中s s ’o cで3時間焼成した。
Example Sodium aluminate (AIAa atomic ratio α7 manufactured by Wako Tsumugi Kogyo Co., Ltd.
8) Dissolve 2.42f, caustic soda (manufactured by Wako Tsumugi Kogyo Co., Ltd., special grade) 9.10 t in water at 296 tT/C, and add 7 Likasol solution (manufactured by Sansan Kagaku, Snowtex 30) to this solution.
1561Ft - diluted with 296F of water) 452
A mother liquor gel t-free without organic additives was prepared by adding and mixing f. To this, 1.0% of ZSM-5 obtained in Comparative Example 2 was added.
was added as a seed crystal, this liquid was set in a Pyrex autoclave, and held under self-generated pressure at 180°C for 24 hours to form a zeolite. Part 2f of the hydrous zeolite obtained as a precipitate was separately prepared from the above organic additive. It was added to the mother liquor gel which did not contain substances, and similarly maintained at 180°C for 24 hours. After the reaction is completed, the product is filtered, and 1 t is added each time.
Washed three times with distilled water. Thereafter, it was dried at 130° C. and fired for 3 hours in an air/liquid atmosphere.

このものの粉末X線回折の結果、比較例1とは著しく異
なり非常に結晶性の高いZEIM −5だけからなりモ
ルデナイトなど他のゼオライトおよび無定形化合物の混
在は見られなかった。またFT(Hの測定の結果、比較
例2で得られたものとは異なり、1350〜1550.
−1に有機物に起因する吸収が全く存在しなく、有機汚
染物がゼオライト中に残留しないことが確認された。
As a result of powder X-ray diffraction of this product, it was found that, unlike Comparative Example 1, it consisted only of highly crystalline ZEIM-5, and no other zeolites such as mordenite or amorphous compounds were observed. Moreover, the results of measurement of FT(H) were 1350 to 1550.
It was confirmed that there was no absorption caused by organic substances in -1, and that no organic contaminants remained in the zeolite.

また2段目のゼオライト合成の母液ゲルへ添加する種子
ゼオライトを含水ゼオライト2fのflに洗浄、乾燥、
焼成したもの1fを用いて同様の操作を行っても本実施
例で得られたものとはy同一のものが得られた。
In addition, the seed zeolite to be added to the mother liquor gel in the second stage of zeolite synthesis is washed with 2F of hydrous zeolite, dried,
Even when the same operation was performed using the fired product 1f, a product y identical to that obtained in this example was obtained.

Claims (1)

【特許請求の範囲】 1)有機添加物を用いて合成した結晶性アルミノシリケ
ートの一部を種結晶とし、これとシリカ源、アルミナ源
、及びアルカリ金属塩を含み有機添加物を含まない水性
原料混合物を水熱合成条件下に保持して実質的に有機不
純物を含まない結晶性アルミノンリケード1生成せしめ
る種結晶合成工程と、該合成工程で得られた結晶性アル
ミノシリケートの一部を種結晶とし、これとシリカ源、
アルミナ源、及びアルカリ金属塩を含み有機添加物を含
まない水性混合物を水熱合成条件下に保持して結晶性ア
ルミノンリケードを製造する製品製造工程とからなるこ
とを特徴とする結晶性アルミノンリケードの製造方法。 2)該製品製造工程が少くとも2つの工程を含み、最初
の工程のみけ該種結晶合成工程において得られた結晶性
アルミノシリケートの一部を種結晶として用い、以下前
工程において得られた結晶性アルミノシリケートの一部
を次の工程の種結晶として用いる特許請求の範囲第1)
項に記載の結晶性アルミノンリケードの製造方法。 3)種結晶の量がゼオライト基準でこれと共に加える水
性原料混合物の約α1〜3重量係である特許請求の範囲
第1)項乃至第、?、)項の何れかの項に記載の結晶性
アルミノンリケードの製造方法。
[Scope of Claims] 1) A part of crystalline aluminosilicate synthesized using organic additives is used as a seed crystal, and this and an aqueous raw material containing a silica source, an alumina source, and an alkali metal salt and containing no organic additives. A seed crystal synthesis step in which the mixture is held under hydrothermal synthesis conditions to produce crystalline aluminosilicate 1 substantially free of organic impurities; and a seed crystal synthesis step in which a portion of the crystalline aluminosilicate obtained in the synthesis step is seeded. This and the silica source,
A product manufacturing process comprising an alumina source and an aqueous mixture containing an alkali metal salt and no organic additives under hydrothermal synthesis conditions to produce crystalline aluminone licade. How to make cades. 2) The product manufacturing process includes at least two steps, and only in the first step, a part of the crystalline aluminosilicate obtained in the seed crystal synthesis step is used as a seed crystal, and the crystals obtained in the previous step are used as seed crystals. Claim 1) in which a part of the aluminosilicate is used as a seed crystal for the next step
The method for producing the crystalline aluminium non-licade described in Section 1. 3) Claims 1) to 3) in which the amount of seed crystals is about α1-3 by weight of the aqueous raw material mixture added together with the seed crystals, based on the zeolite. , ) A method for producing a crystalline aluminonilicade according to any one of the following items.
JP17700783A 1983-09-27 1983-09-27 Manufacture of crystalline aluminosilicate Pending JPS6071519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17700783A JPS6071519A (en) 1983-09-27 1983-09-27 Manufacture of crystalline aluminosilicate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17700783A JPS6071519A (en) 1983-09-27 1983-09-27 Manufacture of crystalline aluminosilicate

Publications (1)

Publication Number Publication Date
JPS6071519A true JPS6071519A (en) 1985-04-23

Family

ID=16023533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17700783A Pending JPS6071519A (en) 1983-09-27 1983-09-27 Manufacture of crystalline aluminosilicate

Country Status (1)

Country Link
JP (1) JPS6071519A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268162A (en) * 1991-05-17 1993-12-07 Asahi Kasei Kogyo Kabushiki Kaisha Method for producing a particulate zeolite and a particulate zeolite produced thereby

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268162A (en) * 1991-05-17 1993-12-07 Asahi Kasei Kogyo Kabushiki Kaisha Method for producing a particulate zeolite and a particulate zeolite produced thereby

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