JPS634847A - Adsorbent for ammonia - Google Patents
Adsorbent for ammoniaInfo
- Publication number
- JPS634847A JPS634847A JP61147809A JP14780986A JPS634847A JP S634847 A JPS634847 A JP S634847A JP 61147809 A JP61147809 A JP 61147809A JP 14780986 A JP14780986 A JP 14780986A JP S634847 A JPS634847 A JP S634847A
- Authority
- JP
- Japan
- Prior art keywords
- ammonia
- carboxyl group
- copper salt
- adsorbent
- polymer
- 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
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 31
- 239000003463 adsorbent Substances 0.000 title claims abstract description 12
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 20
- 229920000642 polymer Polymers 0.000 claims abstract description 15
- 150000001879 copper Chemical class 0.000 claims abstract description 14
- 239000013522 chelant Substances 0.000 claims abstract description 13
- 229920002125 Sokalan® Polymers 0.000 claims abstract description 6
- 239000004584 polyacrylic acid Substances 0.000 claims abstract description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 14
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 3
- 238000005406 washing Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical class [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000530268 Lycaena heteronea Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- YRNNKGFMTBWUGL-UHFFFAOYSA-L copper(ii) perchlorate Chemical compound [Cu+2].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O YRNNKGFMTBWUGL-UHFFFAOYSA-L 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、アンモニア吸着材に関する。更に詳しくは、
カルボキシル基含有重合体系のアンモニア吸着材に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ammonia adsorbent. For more details,
This invention relates to an ammonia adsorbent based on a carboxyl group-containing polymer.
アンモニアを除去するための最も一般的な方法は、それ
を水に吸収させてアンモニア水とする方法あるいは酸水
溶液に吸収させてアンモニア塩とする方法などであり、
この他に硫酸第１鉄水溶液と反応させ硫酸アンモニウム
とする方法なども知られている。しかしながら、これら
の方法は、いずれも不可逆性であって、−旦飽和状態に
達するとそれ以上はアンモニアが吸収されなくなる。The most common methods for removing ammonia include absorbing it in water to form aqueous ammonia or absorbing it in an aqueous acid solution to form ammonia salt.
In addition, a method of reacting with an aqueous ferrous sulfate solution to form ammonium sulfate is also known. However, all of these methods are irreversible; once saturation is reached, no more ammonia is absorbed.
また、固体状のものとしてはポリカルボン酸タイプのも
のが考えられるが、この場合にもそこに含有されるカル
ボキシルｊｊＪ１当量に対し１モルのアンモニアが吸収
されるだけであるので、吸着能力は小さいといえる。In addition, polycarboxylic acid type substances can be considered as solid substances, but in this case as well, only 1 mole of ammonia is absorbed per 1 equivalent of carboxyl jjJ contained therein, so the adsorption capacity is small. It can be said.
そこで、本発明者らは、アンモニアの吸着能力の大きい
ものを求めて検討するに際し、銅塩キレート化合物が銅
塩１モルに対し最大６モルのアンモニアが配位し得るこ
とに着目し、銅塩キレート化合物をカルボキシル基含有
重合体に形成させることにより、かかる課題の解決を図
った。Therefore, when searching for and investigating a compound with a large ammonia adsorption capacity, the present inventors focused on the fact that a copper salt chelate compound can coordinate up to 6 moles of ammonia per 1 mole of copper salt. The inventors attempted to solve this problem by forming a chelate compound into a carboxyl group-containing polymer.
従って１本発明はアンモニア吸着材に係り、このアンモ
ニア吸着材は、カルボキシル基含有重合体の銅塩キレー
ト化物よりなる。Accordingly, the present invention relates to an ammonia adsorbent, which is made of a copper salt chelate of a carboxyl group-containing polymer.
銅塩キレート化物を形成させるカルボキシル基含有重合
体としては、カルボキシル基含量の最も多いポリアクリ
ル酸が好んで用いられ、この他エチレンーアクリル酸共
重合体、エチレン−メタアクリル酸共重合体なども用い
られる。As the carboxyl group-containing polymer that forms the copper salt chelate, polyacrylic acid, which has the highest carboxyl group content, is preferably used, and ethylene-acrylic acid copolymers, ethylene-methacrylic acid copolymers, etc. used.
キレート化物を形成させる銅塩としては、例えば硝酸銅
、塩化銅、過塩素酸銅などの第１銅塩が用いられる。こ
れらの銅塩は、重合体中のカルボキシル基に対して約０
．１〜１のモル比で一般に用いられる。As the copper salt for forming the chelate, for example, cuprous salts such as copper nitrate, copper chloride, and copper perchlorate are used. These copper salts have approximately 0
．． Generally used in a molar ratio of 1-1.
キレート化反応物は、約０．０１〜０．１モル濃度の銅
塩水溶液中にカルボキシル基含有重合体を分散、溶解さ
せ、これに０．ＩＮアンモニア水を添加し、ｐＨを１０
．０に調整してゲル化させることにより取得される。ゲ
ル化物として得られたカルボキシル基含有重合体の銅塩
キレート化物は、日別後ｐ）１４．５の塩酸で十分に洗
浄し、乾燥させる。。The chelation reaction product is prepared by dispersing and dissolving a carboxyl group-containing polymer in an aqueous copper salt solution having a concentration of about 0.01 to 0.1 molar, and dissolving the carboxyl group-containing polymer therein. Add IN ammonia water and adjust pH to 10
．． It is obtained by adjusting it to 0 and gelling it. The copper salt chelate of the carboxyl group-containing polymer obtained as a gel is thoroughly washed with hydrochloric acid (p) 14.5 after being separated for a day and dried. .
〔発明の効果〕
本発明に係るアンモニア吸着材は、カルボキシル基含有
重合体を銅塩キレート化することにより、カルボキシル
基１当量に対して３モルのアンモニアを吸着させること
ができ、しかも吸着させたアンモニアは例えばｐＨ４，
５以上の塩酸などで容易に脱離させることができるので
、それをアンモニア吸着用にくり返して使用することが
できるという効果を奏する。具体的には、粉末状のこの
アンモニア吸着材を、悪臭空気中などのアンモニア成分
の優先的な吸着、除去に使用することができる。[Effects of the Invention] The ammonia adsorbent according to the present invention can adsorb 3 moles of ammonia per equivalent of carboxyl group by chelating a carboxyl group-containing polymer with a copper salt. For example, ammonia has a pH of 4,
Since it can be easily desorbed using 5 or more hydrochloric acid, it can be used repeatedly for ammonia adsorption. Specifically, this powdered ammonia adsorbent can be used to preferentially adsorb and remove ammonia components from foul-smelling air.
次に、実施例について本発明を説明する。 Next, the present invention will be explained with reference to examples.
実施例
ポリアクリル酸ナトリウム（東亜合成化学製品）５ｇ（
カルボキシル基として０．０７モル）を、０．０２モル
濃度のＣｕ（ＮＯ，）２−３１１．ｏ Ｉ Ｑ中に分散
、溶解させ、次いで０．ＩＮアンモニア水でｐＨをｌ０
１０に調整してゲルを生成させた。このゲルをロ別後、
Ｐ旧、５の塩酸で十分洗浄し、乾燥させると、青色のポ
リアクリル酸の銅塩キレート化物が得られた。Example Sodium polyacrylate (Toagosei Chemicals) 5g (
0.07 mol as carboxyl group) and 0.02 mol of Cu(NO,)2-311. o Dispersed and dissolved in IQ, then 0. Adjust the pH to 10 with IN ammonia water.
10 to produce a gel. After separating this gel,
After thorough washing with hydrochloric acid and drying, a blue copper salt chelate of polyacrylic acid was obtained.
得られたポリアクリル酸の銅塩キレート化物３ｇを０．
１％アンモニア蒸気にさらしてアンモニアを飽和吸着さ
せたものを、容ｊｌＱのテトラパックに入れ、そこにア
ンモニア５００ｐｐｍを送り込んだ、 ２０分間経過後
のテトラパック中のアンモニア濃度を検知管により測定
したが、濃度に変化は見られなかった。3 g of the obtained copper salt chelate of polyacrylic acid was added to 0.
The ammonia was saturated and adsorbed by exposure to 1% ammonia vapor, and then placed in a Tetra Pak with a volume of JlQ, and 500 ppm of ammonia was introduced into it.After 20 minutes had elapsed, the ammonia concentration in the Tetra Pak was measured using a detection tube. , no change in concentration was observed.
このようにしてアンモニアを飽和状態迄吸着させたポリ
アクリル酸硝酸銅キレート化物を、ｐＨ４゜５の塩酸で
洗浄することによりアンモニアを脱離させたものを乾燥
した後、上記と同様にしてテトラパック中で５００ｐｐ
ｍのアンモニアと接触させると、２０分間経過後のテト
ラパック中のアンモニア濃度は１１００ｐｐに低下して
いた。The polyacrylic acid copper nitrate chelate with ammonia adsorbed to a saturated state in this way was washed with hydrochloric acid of pH 4.5 to remove ammonia, and after drying, Tetra Pak was prepared in the same manner as above. 500pp inside
When the Tetra Pak was brought into contact with ammonia of m, the ammonia concentration in the Tetra Pak decreased to 1100 pp after 20 minutes.
比較例
実施例で用いられたポリアクリル酸ナトリウム５ｇを、
Ｐ旧、０の塩酸水溶液１００ａ＋ Ｑ中に加え、生成し
たゲルを０別、乾燥した。Comparative Example 5 g of sodium polyacrylate used in the example,
P was added to 100a+Q of an aqueous solution of hydrochloric acid, and the resulting gel was separated and dried.
このゲル化物３ｇを容量ＩＱのテトラパックに入れ、そ
こに５００ｐｐｍのアンモニアを送り込み、２０分間経
過後のアンモニア濃度を測定すると、その値は３００ｐ
ｐｍであった。Put 3g of this gelled product into a Tetra Pak with a capacity of IQ, feed 500ppm of ammonia into it, and measure the ammonia concentration after 20 minutes.The value is 300ppm.
It was pm.
Claims (1)
なるアンモニア吸着材。 ２、カルボキシル基含有重合体がポリアクリル酸である
特許請求の範囲第１項記載のアンモニア吸着材。[Scope of Claims] 1. An ammonia adsorbent comprising a copper salt chelate of a carboxyl group-containing polymer. 2. The ammonia adsorbent according to claim 1, wherein the carboxyl group-containing polymer is polyacrylic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61147809A JPS634847A (en) | 1986-06-24 | 1986-06-24 | Adsorbent for ammonia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61147809A JPS634847A (en) | 1986-06-24 | 1986-06-24 | Adsorbent for ammonia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS634847A true JPS634847A (en) | 1988-01-09 |
Family
ID=15438703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61147809A Pending JPS634847A (en) | 1986-06-24 | 1986-06-24 | Adsorbent for ammonia |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS634847A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63200837A (en) * | 1987-02-17 | 1988-08-19 | Mishima Seishi Kk | Deodorant and sheet-shaped deodorizing material |
| WO2000040324A1 (en) * | 1998-12-31 | 2000-07-13 | Kemira Agro Oy | Process for separation of ammonia gas and a solid adsorbent composition |
-
1986
- 1986-06-24 JP JP61147809A patent/JPS634847A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63200837A (en) * | 1987-02-17 | 1988-08-19 | Mishima Seishi Kk | Deodorant and sheet-shaped deodorizing material |
| WO2000040324A1 (en) * | 1998-12-31 | 2000-07-13 | Kemira Agro Oy | Process for separation of ammonia gas and a solid adsorbent composition |
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