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JPS63248436A - Deodorizing material - Google Patents

Deodorizing material

Info

Publication number
JPS63248436A
JPS63248436A JP62079797A JP7979787A JPS63248436A JP S63248436 A JPS63248436 A JP S63248436A JP 62079797 A JP62079797 A JP 62079797A JP 7979787 A JP7979787 A JP 7979787A JP S63248436 A JPS63248436 A JP S63248436A
Authority
JP
Japan
Prior art keywords
deodorizing
mine
fossils
takaoka
shellfish
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
Application number
JP62079797A
Other languages
Japanese (ja)
Other versions
JPH0426895B2 (en
Inventor
Minoru Sano
実 佐野
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP62079797A priority Critical patent/JPS63248436A/en
Publication of JPS63248436A publication Critical patent/JPS63248436A/en
Publication of JPH0426895B2 publication Critical patent/JPH0426895B2/ja
Granted legal-status Critical Current

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  • Treating Waste Gases (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

PURPOSE:To improve deodorizing efficiency of a small amt. of a deodorizing material by prepg. the deodorizing material from fine powder pulverized to <=10mu particle size after evaporating water contained in a fossil of shell produced from a specified district by heating at 200-300 deg.C. CONSTITUTION:Fossils of shell produced from Toyama mine and Kokudo Takaoka mine, which are legal mines in Takaoka City in Toyama Prefecture, are heated at 200-300 deg.C to evaporate the water in the fossils. Then, the fossils are pulverized to <=10mu fine powder, and used as a deodorizing material. The fine pulverized product is added easily to, concretely, film, polyvinyl chloride sheet, foaming material, fiber, nonwoven fabric, paper, food, etc. as a deodorizing material. The obtd. deodorizing material improves deodorizing effect with a small amt. Moreover, since the fossil of shell is weakly alkaline, the deodorizing material can adsorb both acidic compds. (H2S) and basic compds. (trimethylamine) simultaneously.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は脱臭を目的としたフィルム、塩化ビニールシー
ト、発泡材、繊維、不織布、紙、食品、化粧品等に添加
し易く、球状、顕粒に成形し易く、他の脱臭材料との混
合をし易くするため富山県高岡市にある法定鉱物である
富山鉱山と国土高岡鉱山から産出される貝化石及び前記
貝化石の成分と同効成分の貝化石を200℃〜300℃
以内の熱加工により、貝化石の水分を蒸発させ、10ミ
クロン以下の超微粒の粉末に加工した貝化石の超微粒の
粉末より、なる脱臭材に関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention can be easily added to films for the purpose of deodorization, vinyl chloride sheets, foam materials, fibers, nonwoven fabrics, paper, foods, cosmetics, etc. In order to make it easier to mold and mix with other deodorizing materials, we use shellfish fossils produced from the Toyama Mine and Kokudo Takaoka Mine, which are legal minerals located in Takaoka City, Toyama Prefecture, and the same effective ingredients as the shellfish fossils mentioned above. Shell fossils at 200℃~300℃
The present invention relates to a deodorizing material made of ultrafine powder of fossilized shellfish, which is processed into ultrafine powder of 10 microns or less by evaporating the water content of the fossilized shellfish through thermal processing.

[従来の技術] 従来貝化石は土壌改良、水質改良、飼料、肥料等に使用
されていることから、天然上オライドとして認められて
いたものの、貝化石単独の脱臭効果を測定して、原料と
しての利用はなかった。即ち、土壌改良、水質改良、飼
料、肥料等に使用されていたことから貝化石の超微粒の
粉末にする必要性がなく、天然上オライドとして考えら
れる物理的化学的吸着を利用して、大まかな脱臭効果を
利用したものはあるが(例・鶏糞に混入鶏糞の臭いがし
ない肥料)前記産出される貝化石をIOミクロン以下の
超微粒の粉末に加工、単独の脱臭効果を化学試験して、
脱臭を目的とした原料としての技術と利用はなかった。
[Conventional technology] Shellfish fossils have traditionally been recognized as olides in nature because they have been used for soil improvement, water quality improvement, feed, fertilizer, etc., but the deodorizing effect of shellfish fossils alone was measured and it was determined that they could be used as raw materials. was not used. In other words, since it has been used for soil improvement, water quality improvement, feed, fertilizer, etc., there is no need to make ultra-fine powder from shellfish fossils, and it can be roughly Although there are products that utilize the deodorizing effect (e.g., fertilizer that does not smell like chicken manure when mixed with chicken manure), the shellfish fossils produced above are processed into ultra-fine powder of IO microns or less, and chemical tests are conducted to check the deodorizing effect alone. ,
There was no technology or use of it as a raw material for deodorizing purposes.

又、貝化石の50ミクロン以上の粉末を他の脱臭原料、
脱臭材とまぜて消臭効果を高める例はあるが、本発明の
ように貝化石を超微粒の粉末にして、その脱臭効果を生
かし、主たる脱臭原材料としてフィルム、塩化ビニール
シート、発泡材、繊維、不織布、紙、食品、化粧品等に
添加し易(、球状、顕粒に成形し易く、他の脱臭材料と
の混合をし易くした例はない。
In addition, shellfish fossil powder with a size of 50 microns or more can be used as other deodorizing raw materials,
Although there are examples of enhancing the deodorizing effect by mixing it with deodorizing materials, as in the present invention, shell fossils are made into ultra-fine powder and the deodorizing effect is utilized to make use of films, vinyl chloride sheets, foam materials, and fibers as the main deodorizing raw materials. It is easy to add to non-woven fabrics, paper, foods, cosmetics, etc. (it is easy to form into spheres and fine particles, and there is no example where it is easy to mix with other deodorizing materials).

[発明が解決しようとする問題点] 従来の貝化石の粉末は飼料用として約70ミクロンが最
小であり、仮置脱臭効果の目的で使用する場合も、他の
脱臭材料と混ぜて粉末にしており、また悪臭公害のため
の利用から超微粒の粉末にする必要性がなかったため、
本発明の貝化石単独の脱臭効果を生かして、主たる脱臭
原材料としてフィルム、塩化ビニールシート、発泡材、
繊維、不織布、紙、食品、化粧品等に添加し易く、球状
、顕粒に成形し易く、他の脱臭材料との混合をし易く利
用が出来なかった。
[Problems to be solved by the invention] Conventional shellfish fossil powder for feed use has a minimum diameter of about 70 microns, and even when used for the purpose of temporary deodorizing effect, it must be mixed with other deodorizing materials and made into powder. In addition, there was no need to make it into ultra-fine powder because it was used for odor pollution.
Taking advantage of the deodorizing effect of the shellfish fossil alone of the present invention, the main deodorizing raw materials include films, vinyl chloride sheets, foam materials,
It is easy to add to fibers, nonwoven fabrics, paper, foods, cosmetics, etc., it is easy to form into spheres and fine particles, and it is easy to mix with other deodorizing materials, so it could not be used.

[問題点を解決するための手段] 本発明は、富山県高岡市にある法定鉱物である富山鉱山
と国土高岡鉱山から産出される貝化石、及び前記貝化石
の成分と同効成分の貝化石を200℃〜300℃以内の
熱加工により、貝化石の水分を蒸発させ、10ミクロン
以下の超微粒の粉末に加工した貝化石の超微粒の粉末に
して、多孔質粒子の表面積を増大させ、物理化学吸着力
を高めて、主たる脱臭原材料としてフィルム、塩化ビニ
ールシート、発泡材、繊維、不織布、紙、食品、化粧品
等に添加し易く、球状、顕粒に成形し易く、他の脱臭材
料との混合をし易くした脱臭材である。
[Means for Solving the Problems] The present invention provides shell fossils produced from the Toyama Mine and Kokudo Takaoka Mine, which are legal minerals located in Takaoka City, Toyama Prefecture, and shell fossils with the same active ingredients as those of the shell fossils. is thermally processed within 200°C to 300°C to evaporate the water content of the shellfish fossil and process it into ultrafine powder of 10 microns or less to increase the surface area of the porous particles. By increasing the physicochemical adsorption power, it can be easily added to films, vinyl chloride sheets, foam materials, fibers, non-woven fabrics, paper, foods, cosmetics, etc. as the main deodorizing raw material, and can be easily formed into spherical or fine particles, and can be used with other deodorizing materials. This is a deodorizing material that is easy to mix.

[作  用] 本発明は、前記の方法で前記貝化石を超微粒の粉末にし
たことで、従来の粉末より物理化学吸着力が約10倍以
上のパワーアップをすることから、単独の脱臭原材料の
効果を発揮する。即ち、微量で脱臭効果を上げることが
できる。又、本発明の貝化石は弱アルカリ性であること
から、他の脱臭原材料弔体では見られない、硫化水素(
酸性系)とトリメチルアミン(アルカリ系)の元素を同
時に吸着作用をする。
[Function] In the present invention, by making the shellfish fossil into ultra-fine powder by the above-described method, the physicochemical adsorption power is increased by about 10 times or more than that of conventional powder. Demonstrates the effect of That is, the deodorizing effect can be improved even with a small amount. In addition, since the shellfish fossils of the present invention are weakly alkaline, hydrogen sulfide (
Simultaneously adsorbs elements such as acidic) and trimethylamine (alkaline).

[実 施 例] この明細書において、貝化石とは、考古学名、有孔虫化
石、地質学名、石灰質砂岩であって、富山県高岡市富山
鉱山岩坪A、B、C採掘場において採掘された試料につ
いて、昭和54年8月7日、名古屋通商産業局より分析
報告(54名通産工業第564号)のあった下記定量分
析第1表と富山県高岡市国土高岡鉱山採掘場において採
掘された試料について、昭和52年IO月20日、名古
屋通商産業局より分析報告(52名通産工業第1071
号)のあった下記定量分析第2表によるものをいう。
[Example] In this specification, shellfish fossils refer to archaeological name, foraminiferal fossil, geological name, and calcareous sandstone, which were mined at Iwatsubo A, B, and C quarries of Toyama Mine, Takaoka City, Toyama Prefecture. The samples were mined at the Kunitachi Takaoka Mine, Takaoka City, Toyama Prefecture, and the following quantitative analysis table 1 was submitted by the Nagoya Bureau of International Trade and Industry on August 7, 1974 (54 people International Trade and Industry No. 564). Regarding the sample, an analysis report was issued by the Nagoya Bureau of International Trade and Industry on January 20, 1972 (52 persons, International Trade and Industry No. 1071).
Quantitative Analysis Table 2 below.

又、富山県高岡市で採掘される貝化石は日本の他の地域
で採掘される貝化石の成分構成と分子集合形態が大きく
違い、特に炭酸カルシウムの占める比率が高いことが特
長である。そのため、他の類する貝化石と異なることか
ら、国の資源として法定鉱物に指定されている。
In addition, the shellfish fossils mined in Takaoka City, Toyama Prefecture are significantly different in composition and molecular assembly form from shellfish fossils mined in other areas of Japan, and are characterized by a particularly high proportion of calcium carbonate. Therefore, since it is different from other similar shellfish fossils, it is designated as a legal mineral as a national resource.

前記の貝化石は、水質改良剤、肥料、土壌改良剤、畜産
用飼料等としては実用化されている。それはこの貝化石
の成分と微細な分子の集合体には一定の有効径をもつ穴
が無数にあり、その穴の結晶水を除去すれば天然上オラ
イドとして、活性吸着凝集し、同時にイオン交換、物理
的化学的作用が並行して促進されるからである。又、ア
ルカリ度はpH7,0〜7.2と安定しており、酸の中
に混入することにより1弱アルカリに安定させる効果機
能を持っているからである。
The shellfish fossils described above have been put to practical use as water quality improvers, fertilizers, soil improvers, livestock feeds, and the like. This is because there are countless holes with a certain effective diameter in the aggregate of fossil shell components and fine molecules, and if the crystal water in these holes is removed, they will naturally form active adsorption and flocculation as olides, and at the same time, ion exchange and This is because physical and chemical actions are promoted in parallel. In addition, the alkalinity is stable at pH 7.0 to 7.2, and when mixed into an acid, it has the effect of stabilizing the pH to 1 weakly alkaline.

[効   果] 本発明は前記の構成により、天然上オライドのもつ物理
化学吸着力の増大で、少量で硫化水素(酸性系)とトリ
メチルアミン(アルカリ系)の元素を同時に吸着作用を
する。即ち、脱臭材の原材料としては幅広く応用するこ
とが出来、他の脱臭材と比較して低コストの実用価値の
高い素材に生まれ変る。
[Effects] With the above configuration, the present invention can adsorb hydrogen sulfide (acid type) and trimethylamine (alkaline type) elements at the same time in a small amount by increasing the physicochemical adsorption power of the natural olide. In other words, it can be widely used as a raw material for deodorizing materials, and can be reborn as a material with high practical value at a lower cost than other deodorizing materials.

(財団法人化学品検査協会の試験報告書)1、試験期間 自 昭和62年3月 2日 至 昭和62年3月10日 2、試験目的及び項目 貝化石超微粒の粉末(5ミクロン)、0゜28gによる
硫化水素、トリメチルアミンの脱臭効率把握 3、試験方法 貝化石超微粒の粉末(5ミクロン)、0゜28gをテト
ラハック(11)に入れ、封じ、各試験ガス(硫化水素
−15,9ppm、トリメチルアミン−10,8ppm
)を封入し、20分後、60分後の各試験ガス濃度をガ
スクロマトグラフ法により分析する。
(Test report of Japan Chemical Inspection Association) 1. Test period From March 2, 1988 to March 10, 1988 2. Test purpose and items Ultrafine shellfish fossil powder (5 microns), 0 Ascertaining the deodorizing efficiency of hydrogen sulfide and trimethylamine using 28g of hydrogen sulfide 3, test method Put 0.28g of shellfish fossil ultrafine powder (5 microns) into a Tetrahack (11), seal it, and test each test gas (hydrogen sulfide - 15.9ppm). , trimethylamine - 10,8 ppm
) is sealed, and the concentration of each test gas is analyzed by gas chromatography after 20 minutes and 60 minutes.

4、試験結果 (資源) 富山鉱山 第99号鉱区 25,011  アール国土
高岡鉱山 第104号鉱区 29.008  アール上
記両鉱山の殆どは海抜50メートル以内の山林で、山林
の地肌数メートル下から貝化石の層であり、海抜地下2
0〜30メートル位までの厚い層を形成しており、採掘
は露天掘、天然資源は有限ではあるが、豊富にあり資源
活用は有意義である。日本の他の地域で産出される貝化
石は、含有する炭酸カルシウムが28%より数%以上下
回り、ケイ酸の含有が非常に高く、アルカリ度も、pH
8〜以上と高い。又、法定鉱物として認められていない
。即ち、富山県高岡市の両鉱山から産出される貝化石は
、現在のところ、日本のどこにもない化学的な機能と成
分をもった法定鉱物である。
4. Test results (resources) Toyama Mine Block No. 99 25,011 Earl Kokudo Takaoka Mine Block No. 104 29.008 Earl Both of the above mines are mostly located in mountain forests within 50 meters above sea level, and shellfish can be found several meters below the surface of the mountain forest. A layer of fossils, below sea level 2
It forms a thick layer ranging from 0 to 30 meters, and mining is done through open pit mining, and although natural resources are limited, they are abundant and resource utilization is meaningful. Shellfish fossils produced in other areas of Japan contain calcium carbonate that is several percentage points lower than 28%, contain very high silicic acid, and have low alkalinity and pH.
It is high at 8 or more. Also, it is not recognized as a legal mineral. In other words, the shellfish fossils produced in both mines in Takaoka City, Toyama Prefecture are currently legal minerals with chemical functions and components that cannot be found anywhere else in Japan.

特許出願人   佐 野   実 手続補正書 昭和63年6月ノP日 特許庁長官  吉 1)文 毅 殿 1、事件の表示 昭和62年特許願第079797号 2、発明の名称 脱臭材 3、補正をする者 °■件との関係 特許出願人 佐  野     天 4、代理人〒105 住所 東京都港区虎ノ門1丁目1番15号電話 f03
) 504i441  f代) −特許請求の範囲、発
明の詳細な説明 7、補正の内容 別紙のとおり 1、特許請求の範囲を別紙の通り訂正する。
Patent Applicant: Sano Actual Procedural Amendment Written on June 1988, Director General of the Patent Office Yoshi 1) Tsuyoshi Moon 1, Indication of the Case 1988 Patent Application No. 079797 2, Name of Invention Deodorizing Material 3, Amendment Relationship with the case: Patent applicant: Ten 4 Sano, Agent: 105 Address: 1-1-15 Toranomon, Minato-ku, Tokyo Telephone: f03
) 504i441 f) -Claims, Detailed Description of the Invention 7, Contents of Amendments As shown in Attachment 1, the scope of claims is amended as shown in Attachment 1.

2、明細書第2頁第8行目、第9行目、第16行目、第
3頁第1行目、第6行目、第16行目、第4頁第9行目
の「超微粒の粉末」の字句を「粉体」と補正する。
2. "Super The word ``fine powder'' is corrected to ``powder''.

3、同書第3頁第4行目、第13行目、第15行目の「
粉末」の字句を「粉体」と補正する。
3. The same book, page 3, line 4, line 13, line 15, “
The word "powder" is corrected to "powder".

4、同書第3頁第17行目〜第18行目の「貝化石(i
独の」の字句を「貝化石の単独の」と補正する。
4. "Shell fossils (i.
The word "Germany" is corrected to "single fossil shellfish."

5、同書第4頁第9行目、第18行目の「粉末」の字句
を、「粉体」と補正する。
5. The word "powder" in lines 9 and 18 of page 4 of the same book is corrected to "powder".

6、同書第4頁第19行目の「約10倍以上の」の字句
を「数倍以上の」と補正する。
6. In the same book, page 4, line 19, the phrase ``approximately 10 times or more'' is corrected to ``several times or more.''

7、同書第5頁第2行目「弱アルカリ性であることから
、」の字句を削除する。
7. In the second line of page 5 of the same book, delete the phrase ``Because it is weakly alkaline.''

8、同書同頁第3行目の「脱臭原料単体」の字句を、「
鉱物の脱臭原材料の単体」と補正する。
8. In the third line of the same page of the same book, the phrase “deodorizing raw material alone” was changed to “
It has been corrected to "single mineral deodorizing raw material."

9、同書第7頁第13行目〜第16行目の「又、アルカ
リ度は一一一一持っているからである。」の字句を削除
する。
9. Delete the phrase ``Also, because the alkalinity is 1111.'' on page 7, lines 13 to 16 of the same book.

10、同書第8頁第5行目から第9頁第1行目及び図表
の「(財団法人化学品検査協会の試験報告書)」の字句
から第9頁1行目迄の「4.試験結果」の字句及び図表
までを次の通り補正する。
10. "4. Tests" from page 8, line 5 of the same book to page 9, line 1, and from the words "(Test report of the Chemical Inspection Association)" to page 9, line 1 of the diagram. The text and figures of "Results" have been corrected as follows.

(財団法人化学品検査協会の試験報告書)No、78−
0022 1、試験期間 自 昭和62年4月 1日 至 昭和62年4月11日 2、試験目的及び項目 貝化石粉体(5ミクロン)、貝化石粒体(74ミクロン
)による硫化水素、トリメチルアミンの脱臭効率把握 3、試験方法 (1)硫化水素(15,9ppm) (2)トリメチルアミン(I 0.8 ppm)(受付
No、68−0538) 特許請求の範囲 (1)富山県高岡市にある法定鉱物である富山鉱山と国
土高岡鉱山から産出される貝化石を200 ’C〜30
0℃以内の熱加工により、貝化石の水分を蒸発させ、1
0ミクロン以下の粉体に加工した貝化石の粉体よりなる
脱臭材。
(Test report of the Chemical Inspection Association) No. 78-
0022 1. Test period From April 1, 1988 to April 11, 1986 2. Test purpose and items Hydrogen sulfide and trimethylamine using shell fossil powder (5 microns) and shell fossil granules (74 microns) Deodorizing efficiency understanding 3, test method (1) Hydrogen sulfide (15.9 ppm) (2) Trimethylamine (I 0.8 ppm) (Reception No. 68-0538) Scope of patent claims (1) Statutory facility located in Takaoka City, Toyama Prefecture Mineral shellfish fossils produced from the Toyama Mine and the National Takaoka Mine are heated to 200'C to 30'C.
The moisture in the shellfish fossils is evaporated by thermal processing at temperatures below 0°C, and 1
A deodorizing material made from shellfish fossil powder processed into a powder of 0 microns or less.

(2)富山県高岡市にある富山鉱山と国土高岡鉱山以外
の地域から産出される貝化石であって、その成分が富山
鉱山、国土高岡鉱山から産出される貝化石の成分と同一
又は類似した貝化石の特許請求の範囲第1項記載の粉体
よりなる脱臭材。同一又は類似した成分とは、炭酸カル
シウムが28%以上含有している法定鉱物として認定さ
れる貝化石のことを指す。
(2) Shellfish fossils produced in areas other than the Toyama Mine and the Kokudo Takaoka Mine in Takaoka City, Toyama Prefecture, whose components are the same or similar to those of shellfish fossils produced from the Toyama Mine and the Kokudo Takaoka Mine. A deodorizing material comprising shellfish fossil powder according to claim 1. The same or similar components refer to shellfish fossils that are certified as legal minerals and contain 28% or more of calcium carbonate.

Claims (2)

【特許請求の範囲】[Claims] (1)富山県高岡市にある法定鉱物である富山鉱山と国
土高岡鉱山から産出される貝化石を200℃〜300℃
以内の熱加工により、貝化石の水分を蒸発させ、10ミ
クロン以下の超微粒の粉末に加工した貝化石の超微粒の
粉末よりなる脱臭材。
(1) Shellfish fossils produced from the Toyama Mine and Kokudo Takaoka Mine, which are legal minerals in Takaoka City, Toyama Prefecture, are heated to 200℃ to 300℃.
A deodorizing material made of ultra-fine powder of fossil shells that has been processed into ultra-fine powder of 10 microns or less by evaporating the water content of fossil shells through thermal processing.
(2)富山県高岡市にある富山鉱山と国土高岡鉱山以外
の地域から産出される貝化石であって、その成分が富山
鉱山、国土高岡鉱山から産出される貝化石の成分と同一
又は類似した貝化石の特許請求の範囲第1項記載の超微
粒の粉末よりなる脱臭材。同一又は類似した成分とは炭
酸カルシウムが28%以上含有している法定鉱物として
認定される貝化石のことを指す。
(2) Shellfish fossils produced in areas other than the Toyama Mine and the Kokudo Takaoka Mine in Takaoka City, Toyama Prefecture, whose components are the same or similar to those of shellfish fossils produced from the Toyama Mine and the Kokudo Takaoka Mine. A deodorizing material made of ultrafine powder of fossil shellfish according to claim 1. The same or similar components refer to shellfish fossils that are certified as legal minerals and contain 28% or more of calcium carbonate.
JP62079797A 1987-04-02 1987-04-02 Deodorizing material Granted JPS63248436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62079797A JPS63248436A (en) 1987-04-02 1987-04-02 Deodorizing material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62079797A JPS63248436A (en) 1987-04-02 1987-04-02 Deodorizing material

Publications (2)

Publication Number Publication Date
JPS63248436A true JPS63248436A (en) 1988-10-14
JPH0426895B2 JPH0426895B2 (en) 1992-05-08

Family

ID=13700206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62079797A Granted JPS63248436A (en) 1987-04-02 1987-04-02 Deodorizing material

Country Status (1)

Country Link
JP (1) JPS63248436A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02257618A (en) * 1989-03-29 1990-10-18 Mitsubishi Electric Corp Semiconductor device and its manufacture
JP2013066698A (en) * 2011-09-05 2013-04-18 Yoshiko Shiraishi Powder for health promotion and environmental improvement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02257618A (en) * 1989-03-29 1990-10-18 Mitsubishi Electric Corp Semiconductor device and its manufacture
JP2013066698A (en) * 2011-09-05 2013-04-18 Yoshiko Shiraishi Powder for health promotion and environmental improvement

Also Published As

Publication number Publication date
JPH0426895B2 (en) 1992-05-08

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