JPH03215373A - Production of inorganic porous material - Google Patents
Production of inorganic porous materialInfo
- Publication number
- JPH03215373A JPH03215373A JP2005858A JP585890A JPH03215373A JP H03215373 A JPH03215373 A JP H03215373A JP 2005858 A JP2005858 A JP 2005858A JP 585890 A JP585890 A JP 585890A JP H03215373 A JPH03215373 A JP H03215373A
- Authority
- JP
- Japan
- Prior art keywords
- sand
- clay
- diatomaceous earth
- inorganic porous
- porous material
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000011148 porous material Substances 0.000 title abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000000428 dust Substances 0.000 claims abstract description 25
- 239000004576 sand Substances 0.000 claims abstract description 23
- 239000005909 Kieselgur Substances 0.000 claims abstract description 20
- 239000004927 clay Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 238000010304 firing Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000006227 byproduct Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 abstract description 3
- 239000003905 agrochemical Substances 0.000 abstract description 2
- 238000003898 horticulture Methods 0.000 abstract description 2
- -1 mountain sand Chemical compound 0.000 abstract description 2
- 239000008188 pellet Substances 0.000 abstract description 2
- 239000002689 soil Substances 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000008929 regeneration Effects 0.000 abstract 1
- 238000011069 regeneration method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 230000005484 gravity Effects 0.000 description 7
- 239000000440 bentonite Substances 0.000 description 4
- 229910000278 bentonite Inorganic materials 0.000 description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000003516 soil conditioner Substances 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000206761 Bacillariophyta Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 235000021384 green leafy vegetables Nutrition 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
Description
【発明の詳細な説明】 （イ）産業上の利用分野 この発明は、無機多孔質体の製造方法に関する。[Detailed description of the invention] (b) Industrial application fields The present invention relates to a method for manufacturing an inorganic porous body.
この発明による無機多孔質体は、農業分野における土壌
改良材、園芸用培土、農薬担体、ベット産業や畜産分野
における吸着材、スポーツ関係におけるゴルフ場らしく
はテニスコートの土壌改質剤、排水処理分野における濾
過材、建築分野における骨材として有用なしのである。The inorganic porous material according to the present invention can be used as a soil conditioner in the agricultural field, as a potting soil for horticulture, as a carrier for agricultural chemicals, as an adsorbent in the betting industry and in the livestock industry, as a soil conditioner for golf courses in sports, as a soil conditioner for tennis courts, and as a wastewater treatment field. It is useful as a filter material in the industry and as an aggregate in the construction field.
（口）従来の技術及び発明が解決しようとする課題
従来、無機多孔質体としては、多数のものが知られてい
る。たとえば、カオリナイト質、木節粘土などの粘土を
採掘し、これに珪藻土を添加し、焼成して多孔質体とさ
れている。また、鉱山の選鉱廃滓に、珪藻土を添加、焼
成して多孔質体が作られている（特公昭５７−２７８６
４号参照）。これらの多孔質体の製造において、珪藻土
の添加量を増加さすと多孔質体となり易いが、強度の低
下をきたし、実用性に欠けることになる。逆に、珪藻土
の添加量を減少さけると多孔質体となり難いので、添加
量のコントロールを厳密にすることが要求される。一方
、上記の焼成は、一般的にｔｔｏｏ〜１２０Ｇ℃程度を
必要とし、焼成コストが高くなり工婁的に多くの問題を
抱えている。なお、多孔質体とするｆ二めに発．＠剤を
添加しｆニリ、またおが屑や有機物質の添加も行われて
いるが、何れらコスト高となっている。(Example) Problems to be Solved by the Prior Art and the Invention Conventionally, a large number of inorganic porous materials have been known. For example, clays such as kaolinite and Kibushi clay are mined, diatomaceous earth is added to them, and porous materials are created by firing. Additionally, porous bodies are made by adding diatomaceous earth to mine tailings and firing it (Special Publication No. 57-2786
(See No. 4). In the production of these porous bodies, increasing the amount of diatomaceous earth added tends to make the bodies porous, but this results in a decrease in strength and impracticality. On the other hand, if the amount of diatomaceous earth added is avoided, it will be difficult to form a porous body, so it is necessary to strictly control the amount added. On the other hand, the above-mentioned firing generally requires a temperature of about 100 to 120 G°C, which increases the firing cost and poses many problems in terms of engineering. In addition, f second, which is a porous body. Addition of @ agents and addition of sawdust and organic substances have also been carried out, but these methods are expensive.
（ハ）課題を解決するｆ二めの手段
この発明は、原料として粘土、珪藻土、集塵ダストをそ
れぞれ適当量配合し、これを予め造拉し、加熱焼成して
無機多孔質体を得る方法を提供するものである。(c) Second means for solving the problem This invention is a method of obtaining an inorganic porous body by blending appropriate amounts of clay, diatomaceous earth, and collected dust as raw materials, milling them in advance, and heating and firing them. It provides:
この発明における粘土とは、細かい含水ケイ酸塩鉱物の
集合体を意味する。この発明に好適に使用される粘土に
は、山砂のような原砂から珪砂を製造する際の副産物が
ある。この副産物は、通常原砂から１０〜２０％発生し
、その大部分は原砂を採掘したところに、廃棄物として
埋没しているのが現状である。従って、これを有効に利
用することは、経済的に有利であるばかりでなく、廃棄
物公害を防止する意味からも極めて価値がある。Clay in this invention means an aggregate of fine hydrated silicate minerals. Clays suitably used in this invention include by-products when producing silica sand from raw sand such as mountain sand. This by-product usually occurs in 10 to 20% of the raw sand, and currently most of it is buried as waste where the raw sand is mined. Therefore, making effective use of this is not only economically advantageous, but also extremely valuable in terms of preventing waste pollution.
一方、珪藻土は、多孔質にするための原料として、すで
に多く使用されているが、資源的に少なく、貴重な資源
であり、できるだけ使用量を減少ざ仕るの９・望ましい
。この発明においては、珪藻上の一郎又；よ全部を、集
塵ダストに替えて添加することにより、珪藻土のみを添
加した場合に比較し、資源面の節約に加え、品質面にお
いて優れたものが得られる知見に基づいてなされている
。On the other hand, diatomaceous earth is already widely used as a raw material for making it porous, but it is a rare and valuable resource, and it is desirable to reduce its usage as much as possible. In this invention, by adding all of the diatoms in place of the collected dust, in addition to saving resources, the product is superior in quality compared to the case where only diatomaceous earth is added. This is done based on the knowledge obtained.
集塵ダストとしては、鋳物砂の再生回収時に発生するも
のが好適に用いられる。すなわち、鋳物の生型（一般に
砂、ベントナイト、澱粉、石炭粉末から構成）を使用後
、粉砕、表面磨こうされ、鋳物砂を再生する際に生ずる
集塵ダストを用いることができる。また場合により、有
機鋳型（一般に砂、フラン樹脂から構成）を再生する際
に生ずる集塵ダストを用いることができる。この際は、
ベントナイトを添加したものを集塵ダスト源として用い
るのか好ましい。As the collected dust, dust generated during recycling and recovery of foundry sand is suitably used. That is, after the green casting mold (generally composed of sand, bentonite, starch, and coal powder) is used, it is crushed and the surface polished, and the collected dust generated when the casting sand is recycled can be used. Also, in some cases, the collected dust generated when reclaiming organic molds (generally composed of sand and furan resin) can be used. In this case,
It is preferable to use a material to which bentonite is added as a dust source.
この発明においては原料における粘土、珪藻土、集塵ダ
ストの配合割合量が重要である。粘土４０〜９９重量部
に対し、集塵ダストは１〜３０重量部、好ましくは１０
〜２０重量部配合される。珪藻土は、粘土４０〜９９重
量部に対し、０〜３０部、好ましくは０〜２０重量部配
合されろ。珪藻土の添加は、必ずしも必要と仕ず、また
上記の上限以上加えても経済的らしくは技術効果のメリ
ットがない。In this invention, the blending proportions of clay, diatomaceous earth, and collected dust in the raw materials are important. For 40 to 99 parts by weight of clay, the amount of collected dust is 1 to 30 parts by weight, preferably 10 parts by weight.
~20 parts by weight is blended. Diatomaceous earth is blended in an amount of 0 to 30 parts, preferably 0 to 20 parts by weight, based on 40 to 99 parts by weight of clay. Addition of diatomaceous earth is not necessarily necessary, and adding more than the above-mentioned upper limit does not seem to be economical or provide any technical benefits.
上記の原料は、加熱焼成に当たって、予め造拉される。The above raw materials are milled in advance for heating and firing.
その形状は特に限定されず、顆粒状、ペレット状、球状
などの何れかであってもよい。造粒方法は、公知の方法
を用いて行うことができる。The shape is not particularly limited, and may be granular, pellet, spherical, or the like. The granulation method can be performed using a known method.
次いで、焼成は、この発明の方法によれば通常より低温
度領域たとえば８００〜１０００℃で十分である。１２
００℃のような高温領域で短い時間の焼成が考えられる
が、上記の低温度領域が好ましいことを見出している。Then, according to the method of the present invention, it is sufficient to carry out the firing at a lower temperature range than usual, for example, 800 to 1000°C. 12
Although firing for a short time in a high temperature range such as 00°C is conceivable, it has been found that the above-mentioned low temperature range is preferable.
この焼成は、通常の焼成装置を用いて行うことができる
。This firing can be performed using a normal firing apparatus.
この発明によって得られる多孔質体は、その形態を電子
顕微鏡で確認することができる。The morphology of the porous body obtained by this invention can be confirmed using an electron microscope.
次にこの発明を実施例によって説明する。Next, the invention will be explained by way of examples.
（二）実施例
以下に用いた帖十は一宵舘府の原砂上りｉｌｌ生した粘
土である。集帳ダストは生型より砂を再生する際に副生
じたしのである。各原料の化学成分｛よ、表１に示す通
りである。(2) The choju used in the examples below is clay made from Ichiyokanfu's original sand. The dust is a by-product when the sand is recycled from the green mold. The chemical components of each raw material are shown in Table 1.
表１
（％（Ｗ））
比較例１
この発明の集塵ダストを添加しない場合の通常の骨材の
性状に及ぼす焼成温度の影響について検討した。Table 1 (% (W)) Comparative Example 1 The influence of calcination temperature on the properties of ordinary aggregates without the addition of the collected dust of the present invention was investigated.
（以下余白）
表１
嵩比重の測定は、ＬＯｚｘΦの球状品を成型し、これを
各温度で焼成後、測定した。多孔質体の嵩比重と気孔率
とは比例するものであるので、本試験では嵩比重で表示
した。破壊強度の測定は、上記試料に荷重をかけ測定し
た。(The following is a blank space) Table 1 Bulk specific gravity was measured after molding a spherical product of LOzxΦ and firing it at each temperature. Since the bulk specific gravity and porosity of a porous body are proportional, the bulk specific gravity was used in this test. The breaking strength was measured by applying a load to the sample.
表１の結果で明らかなように、粘土と珪藻土のみでは多
孔質とするための珪藻土の添加量が嵩比重から見て３０
％を必要とし、また破壊荷重強度から見て１２００℃の
焼成温度が要求される。As is clear from the results in Table 1, when using only clay and diatomaceous earth, the amount of diatomaceous earth added to make it porous is 30% in terms of bulk specific gravity.
%, and a firing temperature of 1200°C is required in terms of fracture load strength.
通常工業的には粘土と珪藻土とを原料にした多孔質木の
製造には、焼成温変１２００〜１ ３ ０ ０ ０Ｃて
行っていろが、かかる高温焼成の必要なこと；よ、上記
からし実証される。Normally, industrially, porous wood made from clay and diatomaceous earth is produced at a firing temperature of 1,200 to 1,300 degrees Celsius, but such high-temperature firing is necessary; Proven.
実施例ｌ
粘土、珪藻土、集塵ダストからなる原料を顆粒状に造拉
し、多孔質体の性状と焼成温度の影響を調べた。Example 1 Raw materials consisting of clay, diatomaceous earth, and collected dust were milled into granules, and the effects of the properties of the porous body and firing temperature were investigated.
表２
表２の結果から、集塵ダストを添加した場合は、工業的
に優れた多孔質体が容易に得られ、強度の高い、しかも
嵩比重小さいものが、８００〜１０００℃の焼成温度で
もって製造することができた。Table 2 From the results in Table 2, when dust collection is added, industrially excellent porous bodies can be easily obtained, and those with high strength and low bulk specific gravity can be obtained at sintering temperatures of 800 to 1000°C. I was able to manufacture it.
かりに工業的骨材としては、嵩比重１．３以下で、破壊
荷重強度７０Ｋｇ／ｆｌ以上が多孔質体の基準としｒ二
場合、この発明の集塵ダストの効果は大きく優れた添加
材であることが分かる。However, as an industrial aggregate, if the bulk specific gravity is 1.3 or less and the breaking load strength is 70 kg/fl or more as standards for porous bodies, the dust collection dust of the present invention is highly effective and is an excellent additive material. I understand that.
この作用は、集塵ダストに含まれる残留ベントナイトが
強度を高め、残留石炭扮及び澱粉が多孔質化を促進した
ためと考えられる。This effect is thought to be because the residual bentonite contained in the collected dust increased the strength, and the residual coal and starch promoted porosity.
実施．例２
この発明の集塵ダストの効果を、更に詳細に知るために
焼成温度９００℃での添加量を変えた場合の性状を調べ
た。implementation. Example 2 In order to understand the effects of the collected dust of the present invention in more detail, the properties were investigated when the amount added was varied at a firing temperature of 900°C.
（以下余白）
表３
表３の結果から、集塵ダストの添加量を増加するに従っ
て嵩比重を大きくすることなく骨材の強度が高くなり、
その効果は極めて優秀である。(Margins below) Table 3 From the results in Table 3, it can be seen that as the amount of added dust increases, the strength of the aggregate increases without increasing the bulk specific gravity.
The effect is extremely excellent.
珪藻土の添加をしなくても集塵ダスト２０％添加、９０
０℃の焼成温度で多孔質骨材の性状を満足させることが
出来る。Even without adding diatomaceous earth, 20% of collected dust is added, 90
The properties of porous aggregate can be satisfied at a firing temperature of 0°C.
（ホ）発明の効果
以上の説明から明らかなように、この発明にかかる多孔
質体は、従来産業廃棄物として処理されていた山砂等の
原砂から珪砂を製造する時に分離離発生する粘土、珪藻
土、鋳物砂の再生回収時の集塵ダストとから構成ざ４−
，、安価で且つ性状の優れたものを工業的に得ることが
でき、その効果は大きい。(e) Effects of the Invention As is clear from the above explanation, the porous body according to the present invention is made of clay that is separated and generated when silica sand is produced from raw sand such as mountain sand, which was conventionally treated as industrial waste. , diatomaceous earth, and dust collected during recycling and recovery of foundry sand
, It is possible to obtain a product industrially that is inexpensive and has excellent properties, and its effects are large.
また用途としてゴルフ場のグリーンに用いた場合、鋳物
砂の再生回収時の集塵ダストに含まれるベントナイトの
モンモリナイト系粘土鉱物が芝の育成に役立つと言われ
ていることから、この発明の多孔質体は極めてその効果
は大きい。Furthermore, when used on golf course greens, the montmorinite clay mineral of bentonite contained in the dust collected during the recycling and recovery of foundry sand is said to be useful for the growth of grass. The effect on the body is extremely large.
Claims (1)
塵ダスト１〜３０重量部からなる原料を、造粒し、つい
で加熱焼成して無機多孔質体を得ることを特徴とする無
機多孔質体の製造方法。 ２、原料が粘土６０〜９０重量部、珪藻土０〜２０重量
部、集塵ダスト１０〜２０重量部からなる請求項１記載
の方法。 ３、粘土が山砂のような原砂から珪砂を製造する時に発
生した粘土である請求項１又は２記載の方法。 ４、加熱焼成が８００〜１０００℃で行われる請求項１
〜３の何れかに記載の方法。[Claims] 1. A raw material consisting of 40 to 99 parts by weight of clay, 0 to 30 parts by weight of diatomaceous earth, and 1 to 30 parts by weight of collected dust is granulated and then heated and fired to obtain an inorganic porous body. A method for producing an inorganic porous body, characterized by: 2. The method according to claim 1, wherein the raw materials consist of 60 to 90 parts by weight of clay, 0 to 20 parts by weight of diatomaceous earth, and 10 to 20 parts by weight of collected dust. 3. The method according to claim 1 or 2, wherein the clay is clay generated during the production of silica sand from raw sand such as mountain sand. 4.Claim 1, wherein the heating and firing is performed at 800 to 1000°C.
- 3. The method according to any one of 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP585890A JP3006620B2 (en) | 1990-01-12 | 1990-01-12 | Method for producing inorganic porous body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP585890A JP3006620B2 (en) | 1990-01-12 | 1990-01-12 | Method for producing inorganic porous body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03215373A true JPH03215373A (en) | 1991-09-20 |
| JP3006620B2 JP3006620B2 (en) | 2000-02-07 |
Family
ID=11622676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP585890A Expired - Fee Related JP3006620B2 (en) | 1990-01-12 | 1990-01-12 | Method for producing inorganic porous body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3006620B2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05287751A (en) * | 1992-04-06 | 1993-11-02 | Toko Kensetsu Kk | Vegetation base material |
| WO1994022555A1 (en) * | 1993-03-29 | 1994-10-13 | Lukopat Ag | Microfilter plate and process for making it |
| EP0790070A1 (en) * | 1996-02-16 | 1997-08-20 | Advanced Minerals Corporation | Composite filtration media |
| KR20010016633A (en) * | 2000-12-30 | 2001-03-05 | 유한웅 | Method for manufacturing a porous sinter-ceramic |
| JP2006315925A (en) * | 2005-05-13 | 2006-11-24 | Nippon Home Products Kk | Ceramic using diatom earth as material and method of manufacturing the same |
| JP2006345825A (en) * | 2005-06-20 | 2006-12-28 | Keiichi Sugino | Vegetation soil using diatomaceous shale, pavement structure, and water-retaining function article and the like containing diatom shale and |
| RU2472727C1 (en) * | 2011-09-30 | 2013-01-20 | Юлия Алексеевна Щепочкина | Mixture for producing porous aggregate |
| RU2472728C1 (en) * | 2011-09-30 | 2013-01-20 | Юлия Алексеевна Щепочкина | Mixture for producing porous aggregate |
| RU2507168C1 (en) * | 2012-10-05 | 2014-02-20 | Юлия Алексеевна Щепочкина | Charge for production of porous filling agent |
| JP5719464B1 (en) * | 2013-10-31 | 2015-05-20 | 有限会社ソルチ | Ware making method and ware |
| JP2019058134A (en) * | 2017-09-27 | 2019-04-18 | 群馬県 | Granulated soil |
| CN110683839A (en) * | 2019-10-25 | 2020-01-14 | 深圳麦克韦尔科技有限公司 | Porous ceramic and preparation method and application thereof |
-
1990
- 1990-01-12 JP JP585890A patent/JP3006620B2/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05287751A (en) * | 1992-04-06 | 1993-11-02 | Toko Kensetsu Kk | Vegetation base material |
| WO1994022555A1 (en) * | 1993-03-29 | 1994-10-13 | Lukopat Ag | Microfilter plate and process for making it |
| EP0790070A1 (en) * | 1996-02-16 | 1997-08-20 | Advanced Minerals Corporation | Composite filtration media |
| WO1997029829A1 (en) * | 1996-02-16 | 1997-08-21 | Advanced Minerals Corporation | Composite filtration media |
| CN1064856C (en) * | 1996-02-16 | 2001-04-25 | 先进矿物公司 | Composite filtration media |
| KR20010016633A (en) * | 2000-12-30 | 2001-03-05 | 유한웅 | Method for manufacturing a porous sinter-ceramic |
| JP2006315925A (en) * | 2005-05-13 | 2006-11-24 | Nippon Home Products Kk | Ceramic using diatom earth as material and method of manufacturing the same |
| JP2006345825A (en) * | 2005-06-20 | 2006-12-28 | Keiichi Sugino | Vegetation soil using diatomaceous shale, pavement structure, and water-retaining function article and the like containing diatom shale and |
| RU2472727C1 (en) * | 2011-09-30 | 2013-01-20 | Юлия Алексеевна Щепочкина | Mixture for producing porous aggregate |
| RU2472728C1 (en) * | 2011-09-30 | 2013-01-20 | Юлия Алексеевна Щепочкина | Mixture for producing porous aggregate |
| RU2507168C1 (en) * | 2012-10-05 | 2014-02-20 | Юлия Алексеевна Щепочкина | Charge for production of porous filling agent |
| JP5719464B1 (en) * | 2013-10-31 | 2015-05-20 | 有限会社ソルチ | Ware making method and ware |
| JP2019058134A (en) * | 2017-09-27 | 2019-04-18 | 群馬県 | Granulated soil |
| CN110683839A (en) * | 2019-10-25 | 2020-01-14 | 深圳麦克韦尔科技有限公司 | Porous ceramic and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| JP3006620B2 (en) | 2000-02-07 |
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