JPS63188345A - Gas-absorbing agent - Google Patents
Gas-absorbing agentInfo
- Publication number
- JPS63188345A JPS63188345A JP62018987A JP1898787A JPS63188345A JP S63188345 A JPS63188345 A JP S63188345A JP 62018987 A JP62018987 A JP 62018987A JP 1898787 A JP1898787 A JP 1898787A JP S63188345 A JPS63188345 A JP S63188345A
- Authority
- JP
- Japan
- Prior art keywords
- mixture
- activated carbon
- gas
- sulfuric acid
- gas absorbent
- 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
- 239000006096 absorbing agent Substances 0.000 title abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 48
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000126 substance Substances 0.000 claims abstract description 19
- SXDBWCPKPHAZSM-UHFFFAOYSA-M bromate Inorganic materials [O-]Br(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-M 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000002250 absorbent Substances 0.000 claims description 36
- 230000002745 absorbent Effects 0.000 claims description 36
- 239000003513 alkali Substances 0.000 claims description 16
- SXDBWCPKPHAZSM-UHFFFAOYSA-N bromic acid Chemical compound OBr(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-N 0.000 claims description 16
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 11
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- XUXNAKZDHHEHPC-UHFFFAOYSA-M sodium bromate Chemical group [Na+].[O-]Br(=O)=O XUXNAKZDHHEHPC-UHFFFAOYSA-M 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 2
- 239000001095 magnesium carbonate Substances 0.000 claims description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- -1 alkali metal bromate Chemical class 0.000 abstract description 5
- 244000060011 Cocos nucifera Species 0.000 abstract description 2
- 235000013162 Cocos nucifera Nutrition 0.000 abstract description 2
- 238000010000 carbonizing Methods 0.000 abstract description 2
- 239000003415 peat Substances 0.000 abstract description 2
- 239000002023 wood Substances 0.000 abstract description 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 239000011257 shell material Substances 0.000 abstract 1
- 235000013311 vegetables Nutrition 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 42
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 17
- 239000005977 Ethylene Substances 0.000 description 17
- 238000010521 absorption reaction Methods 0.000 description 12
- 239000000047 product Substances 0.000 description 11
- 235000012055 fruits and vegetables Nutrition 0.000 description 9
- 239000011541 reaction mixture Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000007605 air drying Methods 0.000 description 5
- 238000011056 performance test Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 241000220225 Malus Species 0.000 description 4
- 239000004153 Potassium bromate Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229940094037 potassium bromate Drugs 0.000 description 4
- 235000019396 potassium bromate Nutrition 0.000 description 4
- 239000011343 solid material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- XWNSFEAWWGGSKJ-UHFFFAOYSA-N 4-acetyl-4-methylheptanedinitrile Chemical compound N#CCCC(C)(C(=O)C)CCC#N XWNSFEAWWGGSKJ-UHFFFAOYSA-N 0.000 description 3
- 235000021016 apples Nutrition 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000005070 ripening Effects 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000035613 defoliation Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000005089 fruit drop Effects 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- OCATYIAKPYKMPG-UHFFFAOYSA-M potassium bromate Chemical compound [K+].[O-]Br(=O)=O OCATYIAKPYKMPG-UHFFFAOYSA-M 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Storage Of Fruits Or Vegetables (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はガス吸収剤及びその製造法に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a gas absorbent and a method for producing the same.
更に詳しくは、青果類と直接接触しても、青果類を腐ら
せることのないガス吸収剤及びその製造法に関する。More specifically, the present invention relates to a gas absorbent that does not spoil fruits and vegetables even when it comes into direct contact with the fruits and vegetables, and a method for producing the same.
従来から各種ガス吸収剤が一般に知られている。 Various gas absorbents have been generally known.
特にエチレンガス吸収能の高いガス吸収剤として、活性
炭を臭素酸カリウムで処理した「青果物鮮度保持剤」
（特開昭５６−８８７５２号公報）及び「ガス吸収剤及
びその製造方法」 （特開昭５８−９８１４１号公報）
並びに活性炭を臭素酸ナトリウムで処理したガス吸収剤
の製造法（特開昭６ｌ−２６８３５４）が提案されてい
る。"Fruit and vegetable freshness preservation agent" made by treating activated carbon with potassium bromate as a gas absorbent with particularly high ethylene gas absorption capacity.
(Japanese Unexamined Patent Publication No. 56-88752) and "Gas absorbent and its manufacturing method" (Unexamined Japanese Patent Publication No. 58-98141)
Furthermore, a method for producing a gas absorbent in which activated carbon is treated with sodium bromate (Japanese Patent Laid-Open No. 61-268354) has been proposed.
しかるに、これらガス吸収剤は、エチレンガス吸収能が
高く、優れたものであるが、直接青果類に接触すると、
青果類を腐さらせる場合があるという欠点を有するもの
であった。However, although these gas absorbents have a high ability to absorb ethylene gas and are excellent, when they come into direct contact with fruits and vegetables,
It has the disadvantage that it may cause fruits and vegetables to rot.
そこで本発明は、青果類と直接接触しても青果類を腐せ
ることのないガス吸収剤を提供することにある。Therefore, an object of the present invention is to provide a gas absorbent that does not spoil fruits and vegetables even when it comes into direct contact with the fruits and vegetables.
本発明は、硫酸水溶液と活性炭からなる混合物に臭素酸
アルカリを添加反応させることによって得られた固形物
とアルカリ性物質とを含むガス吸収剤に関する。The present invention relates to a gas absorbent containing an alkaline substance and a solid obtained by adding an alkali bromate to a mixture of an aqueous sulfuric acid solution and activated carbon.
本発明について以下詳細に説明する。The present invention will be explained in detail below.
本発明において使用する「活性炭」としては、市販のも
のがその品質の差異にかかわらず、いずれも支障なく使
用することができる。例えばその形態は粉末状、フレー
ク状、粒状、成形粒状、固形、繊維状、フィルム状等で
あることができ、また、ヤシ穀、泥炭、木材、プラスチ
ック、その他の原料を炭化して得られる各種の活性炭で
あることができる。As the "activated carbon" used in the present invention, any commercially available activated carbon can be used without any problem, regardless of differences in quality. For example, the form can be powder, flake, granule, molded granule, solid, fibrous, film, etc., and various types obtained by carbonizing coconut grain, peat, wood, plastic, and other raw materials. activated carbon.
活性炭は硫酸水溶液と活性炭からなる混合物に臭素酸ア
ルカリを添加反応させることによってエチレン吸収能を
有する固形物とする。Activated carbon is made into a solid substance having ethylene absorption ability by adding an alkali bromate to a mixture of an aqueous sulfuric acid solution and activated carbon.
まず上記活性炭と硫酸水溶液とを混合して混合物とする
。該混合物の調製は、例えば、活性炭に硫酸水溶液を注
ぐ方法、あるいは硫酸水溶液に活性炭を添加する方法等
により行うことができ、その際適宜撹拌しながら行うこ
とができる。使用する硫酸水溶液について特に限定はな
い。しかし、特に硫酸濃度が約１．１〜１．７ Ｎの範
囲であることが好ましい。該範囲内の濃度を有する硫酸
水溶液を使用した場合に、特に良好なエチレン吸収性能
を有する生成物を得ることができる傾向があるからであ
る。First, the activated carbon and an aqueous sulfuric acid solution are mixed to form a mixture. The mixture can be prepared, for example, by pouring an aqueous sulfuric acid solution onto activated carbon, or by adding activated carbon to an aqueous sulfuric acid solution, with appropriate stirring. There are no particular limitations on the sulfuric acid aqueous solution used. However, it is particularly preferred that the sulfuric acid concentration is in the range of about 1.1-1.7N. This is because when an aqueous sulfuric acid solution having a concentration within this range is used, it tends to be possible to obtain a product having particularly good ethylene absorption performance.
また、上記活性炭と硫酸水溶液の混合割合は、活性炭重
量に対し、硫酸水溶液中の水の重量が２〜３倍になるよ
うにすることが好ましい。Further, the mixing ratio of the activated carbon and the sulfuric acid aqueous solution is preferably such that the weight of water in the sulfuric acid aqueous solution is 2 to 3 times the weight of the activated carbon.
次いで、前記混合物に臭素酸す） ＩＪウム、臭素酸カ
リウム等の臭素酸アルカリを添加する。該添加は、混合
物が好ましくは５５℃以下、更に好ましくは５０℃以下
の温度を維持できるように冷却しながら行うことが好ま
しい。冷却は、例えば、混合用容器壁を水道水で冷却す
ること等により行うことができる。Next, an alkali bromate such as bromate, potassium bromate, etc. is added to the mixture. The addition is preferably carried out with cooling so that the mixture is maintained at a temperature preferably below 55°C, more preferably below 50°C. Cooling can be performed, for example, by cooling the wall of the mixing container with tap water.
また、上記臭素酸アルカリの添加は、混合物を適宜撹拌
することにより行うこともできる。Moreover, the addition of the alkali bromate can also be carried out by appropriately stirring the mixture.
添加する臭素酸アルカリは固体自身でも、適当な濃度に
調節した水溶液であることもできる。臭素酸アルカリの
使用量は、活性炭１０重量部に対して約４重量部以上と
することが好ましい。臭素酸アルカリを上記範囲で使用
することによってガス吸収性能がより高く、品質のバラ
ツキのより少ないガス吸収剤を得ることができるからで
ある。The alkali bromate added can be a solid itself or an aqueous solution adjusted to an appropriate concentration. The amount of alkali bromate used is preferably about 4 parts by weight or more per 10 parts by weight of activated carbon. This is because by using the alkali bromate in the above range, a gas absorbent having higher gas absorption performance and less variation in quality can be obtained.
臭素酸アルカリの活性炭及び硫酸水溶液からなる混合物
への添加は、臭素酸アルカリの全量を一時に添加する方
法、あるいは一定の時間内に徐々に添加する方法により
行うことができる。尚、温度コントロールの容易さから
、徐々に添加する方法が特に好ましい。また、徐々に添
加する方法による場合の臭素酸アルカリの添加時間は、
反応の規模によって変化するものであるが、例えば、約
３０〜６０分とすることができる。また、硫酸水溶液、
活性炭、臭素酸アルカリを同時に投入する方法も採用で
きる。The alkali bromate can be added to the mixture consisting of activated carbon and an aqueous sulfuric acid solution by adding the entire amount of the alkali bromate at once, or by gradually adding it over a certain period of time. Note that a method of gradual addition is particularly preferred from the viewpoint of ease of temperature control. In addition, the addition time of alkali bromate when using the gradual addition method is as follows:
Although it varies depending on the scale of the reaction, it can be, for example, about 30 to 60 minutes. In addition, sulfuric acid aqueous solution,
It is also possible to adopt a method in which activated carbon and alkali bromate are added at the same time.
本発明においては、上記添加終了後、混合用容器の冷却
を止めた後に、必要により生成物を一定時間熟成させる
ことができる。該熟成のための時間は、例えば約２〜５
時間とすることができ、熟成させることによってより良
好なガス吸収性能を有する吸収剤が得られる傾向がある
。In the present invention, after the above-mentioned addition is completed and cooling of the mixing container is stopped, the product can be aged for a certain period of time if necessary. The time for this ripening is, for example, about 2 to 5
Aging tends to yield absorbents with better gas absorption performance.
本発明にふいては、前記臭素酸アルカリの添加後（上記
熟成をする場合にはその後に）、生成物を含む混合物を
固液分離することによって固形分として生成物を得、さ
らに該生成物を乾燥する。In the present invention, after the addition of the alkali bromate (after the above-mentioned ripening), the mixture containing the product is subjected to solid-liquid separation to obtain the product as a solid content, and further the product is Dry.
上記乾燥は、例えば固液分離生成物を風乾し、次いで加
熱乾燥する方法等によって行うことができる。より具体
的には、例えば−昼夜風乾後、約８０〜１１５℃の範囲
で加熱乾燥する方法であることができる。特に加熱乾燥
は、低温で長時間行うことが好ましい。また、生成物の
乾燥は、乾燥後の生成物が約３％以下の含有水分となる
まで行うことが好ましい。The above-mentioned drying can be performed, for example, by air-drying the solid-liquid separation product and then drying it by heating. More specifically, for example, after air drying day and night, it can be heated and dried at a temperature in the range of about 80 to 115°C. In particular, heat drying is preferably carried out at low temperatures for a long period of time. Further, the product is preferably dried until the dried product has a moisture content of about 3% or less.
本発明においては、このようにして得られた工チレンガ
ス吸収能を有する固形物とアルカリ性物質とを混合して
、本発明のガス吸収剤を得る。In the present invention, the gas absorbent of the present invention is obtained by mixing the thus obtained solid material having the ability to absorb ethylene gas with an alkaline substance.
本発明において「アルカリ性物質」の例としては、水酸
化ナトリウム、水酸化カリウム、水酸化マグネシウム、
水酸化カルシウム、炭酸ナトリウム、炭酸水素ナトリウ
ム、炭酸カルシウム、炭酸マグネシウム、炭酸カリウム
等を挙げることができる。特にアルカリ性物質としては
、炭酸カルシウムが好ましい。炭酸カルシウムとしては
重質炭酸カルシウム、沈降性炭酸カルシウム等を用いる
ことができる。又２００メツシユパスのような細イ粒子
の炭酸カルシウムが好ましい。本発明のガス吸収剤は、
これらアルカリ性物質の単独は勿論のこと２以上を含む
こともできる。アルカリ性物質は、ガス吸収剤の１〜５
Ｑｗｔ％、好ましくはｌＯ〜２ Ｑｗｔ％の割合で、
混合することが適当である。In the present invention, examples of "alkaline substances" include sodium hydroxide, potassium hydroxide, magnesium hydroxide,
Examples include calcium hydroxide, sodium carbonate, sodium hydrogen carbonate, calcium carbonate, magnesium carbonate, potassium carbonate, and the like. In particular, calcium carbonate is preferred as the alkaline substance. As the calcium carbonate, heavy calcium carbonate, precipitated calcium carbonate, etc. can be used. Further, calcium carbonate with fine particles such as 200 mesh particles is preferable. The gas absorbent of the present invention is
These alkaline substances may be used alone or in combination of two or more. The alkaline substance is 1 to 5 of the gas absorbent.
Qwt%, preferably at a rate of 1O~2 Qwt%,
Mixing is appropriate.
アルカリ性物質は、乾燥後のエチレン吸収能を有する固
形物に混合して本発明のガス吸収剤とする以外に以下の
様に混合して、本発明のガス吸収剤とすることもできる
。硫酸水溶液と活性炭とからなる混合物と臭素酸アルカ
リとの反応後、固形生成物を固液分離前に、アルカリ性
物質を反応後の混合液に添加して、次いで固液分離し、
乾燥することによって本発明のガス吸収剤を得ることが
できる。また上記固形生成物を固液分離した後、加熱乾
燥前風乾後に、アルカリ性物質を風乾した固形物に混合
し、さらに前記のように加熱乾燥することによって、本
発明のガス吸収剤とすることもできる。風乾後乾燥前の
固形物にアルカリ性物質を添加することによって、乾燥
機の腐食を防止できる。従って、アルカリ性物質を風乾
後と乾燥後の２度に分けて固形物に添加することが特に
好ましい。In addition to mixing the alkaline substance with a dried solid material having ethylene absorption ability to form the gas absorbent of the present invention, the alkaline substance can also be mixed in the following manner to form the gas absorbent of the present invention. After the reaction of a mixture consisting of an aqueous sulfuric acid solution and activated carbon with an alkali bromate, and before solid-liquid separation of the solid product, an alkaline substance is added to the reaction mixture, and then solid-liquid separation is performed,
The gas absorbent of the present invention can be obtained by drying. Furthermore, after solid-liquid separation of the solid product, after air-drying before heat drying, an alkaline substance may be mixed with the air-dried solid and further heat-dried as described above to obtain the gas absorbent of the present invention. can. Corrosion of the dryer can be prevented by adding an alkaline substance to the solid material after air drying and before drying. Therefore, it is particularly preferable to add the alkaline substance to the solid material twice, once after air drying and once after drying.
以上のようにして得られた本発明のガス吸収剤は、その
まま成型等することなしに、あるいは粉末、粒状、フレ
ーク状、顆粒状などの所望の形状に成型してガス吸収剤
として商品とすることができる。The gas absorbent of the present invention obtained as described above can be used as a commercial product as a gas absorbent without being molded or molded into a desired shape such as powder, granules, flakes, or granules. be able to.
上記のように、本発明のガス吸収剤の用途としては、青
果物の鮮度保持剤、（老化防止剤）、花弁の萎凋防止剤
、球根の発芽、発根防止剤、植物の黄化、落葉、落果防
止剤、植物の成長分化調整剤等を挙げられるほか、脱臭
剤や２重又は３重結合を持つか、反応によってこれを生
ずる揮発性の有機化合物の吸収剤としても好適に使用で
きるものである。As mentioned above, the gas absorbent of the present invention can be used as a freshness-preserving agent for fruits and vegetables, (an anti-aging agent), an agent for preventing wilting of flower petals, an agent for preventing bulb germination and rooting, yellowing of plants, defoliation, In addition to being used as a fruit drop prevention agent and a plant growth differentiation regulator, it can also be suitably used as a deodorizing agent and an absorbent for volatile organic compounds that have double or triple bonds or that are generated through reactions. be.
以下、本発明を実施例によりさらに詳細に説明する。Hereinafter, the present invention will be explained in more detail with reference to Examples.
参考例１
容量１ ｍ＋のグラスライニング製反応槽に水８００１
を入れこれに濃度９８％の硫酸５０’ｋｇを添加し、充
分撹拌後市販活性炭（工材化学製ＣＧ６１０Ａ）３１５
ｋｇを加えてさらに撹拌をつづけた。次いて、水道水で
反応槽を冷却しながら、臭素酸す） ＩＪウム１４０ｋ
ｇを徐々に加え、１２０分で添加を完了した。反応槽の
最高温度は４５℃であった。冷却を停止しさらに１８０
分熟成させて反応混合液を得た。Reference example 1 Water 8001 in a glass-lined reaction tank with a capacity of 1 m+
To this was added 50 kg of sulfuric acid with a concentration of 98%, and after thorough stirring, commercially available activated carbon (CG610A manufactured by Kozai Kagaku) 315
kg was added and stirring was continued. Next, while cooling the reaction tank with tap water, add bromine (IJum 140k)
g was gradually added and the addition was completed in 120 minutes. The maximum temperature of the reactor was 45°C. Stop cooling and add 180
A reaction mixture was obtained by aging for several minutes.
実施例１
参考例１で得た反応混合液を脱液して得られた固形分を
一昼夜風乾した後、得られた風乾生成物１ｋｇに表２の
アルカリ物質を表２の重量で添加後、鉄製回転式乾燥機
（１２０℃）で６時間乾燥して本発明のガス吸収剤を得
た。該ガス吸収剤、のエチレン吸収性能試験結果を表２
に示す。Example 1 The solid content obtained by deliquifying the reaction mixture obtained in Reference Example 1 was air-dried for a day and night. After adding the alkaline substance shown in Table 2 in the weight shown in Table 2 to 1 kg of the obtained air-dried product, The gas absorbent of the present invention was obtained by drying in an iron rotary dryer (120° C.) for 6 hours. Table 2 shows the ethylene absorption performance test results of the gas absorbent.
Shown below.
（エチレン吸収性能試験方法）
ガス吸収剤試料１ｇを密栓付け１３０１＋１ｊ！容量フ
ラスコに採取し、３０℃に保ち、別に用意した１３０ｍ
ｊ！容量フラスコに水を張り、フラスコ内にエチレンガ
スを充満させ密栓する。試料入りフラスコからｌＱ＋＋
＋ｊ！の空気を抜いた後、エチレンガス入りフラスコか
ら、１０１ＴＩＩｌのエチレンを採取し、試料入りフラ
スコ内に注入し、注入完了時点をスタート時として２０
分、４０分、６０分経過した後の試料入りフラスコ内の
ガスをＱ、５ｍｊ！採取し、ガスクロマトグラフにより
エチレンガスの残留量を測定し、最初のエチレンガス注
入量に対する％で表わす。(Ethylene absorption performance test method) 1g of gas absorbent sample is sealed with a stopper 1301+1j! The sample was collected in a volumetric flask, kept at 30℃, and a separately prepared 130m
j! Fill a volumetric flask with water, fill the flask with ethylene gas, and seal the flask tightly. lQ++ from sample flask
+j! After removing the air, 101 TIIl of ethylene was collected from the flask containing ethylene gas and injected into the flask containing the sample.
After minutes, 40 minutes, and 60 minutes have passed, the gas in the sample flask is Q, 5mj! The residual amount of ethylene gas was measured using a gas chromatograph and expressed as a percentage of the initial amount of ethylene gas injected.
表 １
実施例２
参考例１で得た反応混合液を脱液して得られた固形分を
一昼夜風乾し、次いで得られた乾燥生成、 物１．０
ｋｇを送風乾燥機（１２０℃）で６時間乾燥した後、
乾燥生成物６５ｇに表２のアルカリ性物質を混合して本
発明のガス吸収剤を得た。該ガス吸収剤のエチレン吸収
性能試験結果を表３に示す。Table 1 Example 2 The solid content obtained by deliquifying the reaction mixture obtained in Reference Example 1 was air-dried for a day and night, and then the dried product obtained was 1.0
After drying kg in a blow dryer (120℃) for 6 hours,
The alkaline substances shown in Table 2 were mixed with 65 g of the dry product to obtain the gas absorbent of the present invention. Table 3 shows the ethylene absorption performance test results of the gas absorbent.
表 ２
実施例３
水５ｇで濡らしたガス吸収剤１０ｇをリンゴに直接接触
させ、リンゴの傷み具合について調べた。Table 2 Example 3 10 g of the gas absorbent moistened with 5 g of water was brought into direct contact with apples to examine the degree of damage to the apples.
リンゴの傷み率（％）＝ テスト条件 温度＝２０℃ リンゴ：富士 試験個数＝５コ 結果を表３に示す。Apple damage rate (%) = Test conditions Temperature = 20℃ Apple: Fuji Number of test pieces = 5 pieces The results are shown in Table 3.
表 ３
参考例２
参考例１の臭素酸ナトリウム１４０ｇに替えて、臭素酸
カリウム１５６ｇを用い、１８０分で添加を完了し、か
つ反応槽の最高温度を８℃とした他は、参考例１と同様
にして反応混合物を得た。Table 3 Reference Example 2 Same as Reference Example 1 except that 156 g of potassium bromate was used instead of 140 g of sodium bromate in Reference Example 1, the addition was completed in 180 minutes, and the maximum temperature of the reaction tank was 8°C. A reaction mixture was obtained in the same manner.
実施例４
反応混合液として参考例２のものを用いた他は実施例１
と同様にしてガス吸収剤を調製し、かつエチレン吸収性
能試験を行った。Example 4 Example 1 except that the reaction mixture used in Reference Example 2 was used.
A gas absorbent was prepared in the same manner as above, and an ethylene absorption performance test was conducted.
表 ４
「
参考例３
参考例１の臭素酸ナトリウム１４０ｇの替りに、臭素酸
ナトリウム７０ｋｇと臭素酸カリウム７８ｋｇの混合物
を用い、１８０分で添加を完了し、かつ反応槽の最高温
度を４８℃とした他は参考例１と同様に操作して反応混
合液を得た。Table 4 Reference Example 3 A mixture of 70 kg of sodium bromate and 78 kg of potassium bromate was used in place of 140 g of sodium bromate in Reference Example 1, and the addition was completed in 180 minutes, and the maximum temperature of the reaction tank was 48°C. A reaction mixture was obtained in the same manner as in Reference Example 1 except for the above steps.
実施例５
反応混合液として参考例３のものを用いた他は実施例１
と同様にして、ガス吸収剤を調製し、かつエチレン吸収
性能試験を行った。Example 5 Example 1 except that the reaction mixture used in Reference Example 3 was used.
A gas absorbent was prepared in the same manner as above, and an ethylene absorption performance test was conducted.
表 ５
実施例６
実施例４及び５で調製したガス吸収剤を用いて、実施例
３の方法と同様にしてリンゴの傷み率を求めた。Table 5 Example 6 Using the gas absorbents prepared in Examples 4 and 5, the damage rate of apples was determined in the same manner as in Example 3.
表 ６
〔発明の効果〕
本発明のガス吸収剤は、優れたエチレンガス吸収能を有
すると同時に、青果類の腐りの発生も防げるものである
。Table 6 [Effects of the Invention] The gas absorbent of the present invention has excellent ethylene gas absorption ability and at the same time can prevent the occurrence of rot in fruits and vegetables.
Claims (4)
カリを添加反応させることによって得られた固形物とア
ルカリ性物質とを含むガス吸収剤。(1) A gas absorbent containing an alkaline substance and a solid obtained by adding an alkali bromate to a mixture of an aqueous sulfuric acid solution and activated carbon.
求の範囲第１項記載のガス吸収剤。(2) The gas absorbent according to claim 1, wherein the alkali bromate is sodium bromate.
ウム、水酸化マグネシウム、水酸化カルシウム、炭酸ナ
トリウム、炭酸水素ナトリウム、炭酸カルシウム、炭酸
マグネシウム、炭酸カリウムからなる群から選ばれる少
なくとも一種の化合物である特許請求の範囲第１項記載
のガス吸収剤。(3) A patent in which the alkaline substance is at least one compound selected from the group consisting of sodium hydroxide, potassium hydroxide, magnesium hydroxide, calcium hydroxide, sodium carbonate, sodium bicarbonate, calcium carbonate, magnesium carbonate, and potassium carbonate. The gas absorbent according to claim 1.
ルカリを添加反応させ、次いで該添加後の生成物から固
形分を分離し、乾燥して得られた固形物とアルカリ性物
質とを混合することから構成されるガス吸収剤の製造法
。(4) Adding and reacting an alkali bromate to a mixture consisting of an aqueous sulfuric acid solution and activated carbon, then separating the solid content from the product after the addition, and mixing the solid obtained by drying and an alkaline substance. A method for producing a gas absorbent consisting of.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62018987A JPS63188345A (en) | 1987-01-29 | 1987-01-29 | Gas-absorbing agent |
| NZ22332888A NZ223328A (en) | 1987-01-29 | 1988-01-27 | Gas absorbent containing alkaline substance and active carbon treated with alkali metal bromate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62018987A JPS63188345A (en) | 1987-01-29 | 1987-01-29 | Gas-absorbing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63188345A true JPS63188345A (en) | 1988-08-03 |
| JPH0413972B2 JPH0413972B2 (en) | 1992-03-11 |
Family
ID=11986934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62018987A Granted JPS63188345A (en) | 1987-01-29 | 1987-01-29 | Gas-absorbing agent |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS63188345A (en) |
| NZ (1) | NZ223328A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5238053A (en) * | 1975-09-16 | 1977-03-24 | Tomita Pharma | Method of maintaining freshness of unripe fruit during storing |
| JPS5570340A (en) * | 1978-11-20 | 1980-05-27 | Takeda Chem Ind Ltd | Package of low-molecular organic gas adsorbent |
| JPS61268354A (en) * | 1985-05-20 | 1986-11-27 | Honshu Paper Co Ltd | Preparation of gas absorbent |
-
1987
- 1987-01-29 JP JP62018987A patent/JPS63188345A/en active Granted
-
1988
- 1988-01-27 NZ NZ22332888A patent/NZ223328A/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5238053A (en) * | 1975-09-16 | 1977-03-24 | Tomita Pharma | Method of maintaining freshness of unripe fruit during storing |
| JPS5570340A (en) * | 1978-11-20 | 1980-05-27 | Takeda Chem Ind Ltd | Package of low-molecular organic gas adsorbent |
| JPS61268354A (en) * | 1985-05-20 | 1986-11-27 | Honshu Paper Co Ltd | Preparation of gas absorbent |
Also Published As
| Publication number | Publication date |
|---|---|
| NZ223328A (en) | 1990-05-28 |
| JPH0413972B2 (en) | 1992-03-11 |
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