JPH0210696B2 - - Google Patents
Info
- Publication number
- JPH0210696B2 JPH0210696B2 JP58035037A JP3503783A JPH0210696B2 JP H0210696 B2 JPH0210696 B2 JP H0210696B2 JP 58035037 A JP58035037 A JP 58035037A JP 3503783 A JP3503783 A JP 3503783A JP H0210696 B2 JPH0210696 B2 JP H0210696B2
- Authority
- JP
- Japan
- Prior art keywords
- graphite
- acid
- catalyst
- treated
- aqueous solution
- 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.)
- Expired
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 26
- 229910002804 graphite Inorganic materials 0.000 claims description 26
- 239000010439 graphite Substances 0.000 claims description 26
- 239000002253 acid Substances 0.000 claims description 12
- 239000003054 catalyst Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 150000002823 nitrates Chemical class 0.000 claims description 3
- 229910001111 Fine metal Inorganic materials 0.000 claims description 2
- 239000002923 metal particle Substances 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000011949 solid catalyst Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Catalysts (AREA)
Description
【発明の詳細な説明】
この発明は、たとえば有機合成における水素添
加反応等の反応促進添加物として使用される触媒
の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a catalyst which is used as an additive for promoting reactions such as hydrogenation reactions in organic synthesis.
従来、黒鉛を担体とする固体触媒は、その黒鉛
自体が化学的に安定しており、また比表面積が比
較的大きい等によつて担体としては有効な機能を
備えていることが知られている。 Conventionally, solid catalysts using graphite as a carrier are known to have effective functions as a carrier due to the graphite itself being chemically stable and having a relatively large specific surface area. .
しかしながら、黒鉛はその性質上、粉化しやす
いため、固体触媒として用いると反応生成物中に
粉塵として混入するおそれがあり、そのために黒
鉛の形状を粉化したがい形状にしておく等の制約
を受けることが多い。 However, due to its nature, graphite easily pulverizes, so if it is used as a solid catalyst, there is a risk that it will be mixed into the reaction product as dust, and therefore there are restrictions such as keeping the shape of graphite in a shape that is desired to be pulverized. There are many.
そこで、この発明は、触媒としての黒鉛のもつ
優れた特性を残しつつ、前述した黒鉛が有する欠
点、つまり粉塵の発生（粉化を防止）を完全にな
くした触媒の製造方法を提供しようとするもので
ある。 Therefore, the present invention aims to provide a method for producing a catalyst that completely eliminates the above-mentioned disadvantage of graphite, that is, the generation of dust (prevention of powdering), while retaining the excellent properties of graphite as a catalyst. It is something.
すなわち、この発明では、酸処理黒鉛をニツケ
ル、コバルト、パラジウム、白金、鉄等の硝酸塩
類の水溶液に浸漬し、乾燥後加熱することによつ
て、酸処理黒鉛を膨張させると同時に膨張した黒
鉛の表面に前記金属の微粒子を分散担持せしめた
膨張黒鉛を得て、ついでこの膨張黒鉛を加圧成形
することによつてシート状等の如く所望形状にし
た触媒の製造方法である。 That is, in this invention, acid-treated graphite is immersed in an aqueous solution of nitrates such as nickel, cobalt, palladium, platinum, iron, etc., and heated after drying to expand the acid-treated graphite and at the same time, to remove the expanded graphite. This is a method for producing a catalyst, in which expanded graphite having fine particles of the metal described above dispersedly supported on its surface is obtained, and then this expanded graphite is formed into a desired shape, such as a sheet shape, by pressure molding.
この発明の手段に従えば、得られるところの触
媒としては、黒鉛のもつ化学的に安定した性質
はそのまま維持されている。黒鉛を40〜300倍
の体積に膨張できるので、比表面積を10〜100倍
程度に大きくできる。通常の黒鉛成形体の如
く、粉塵の発生が全くなくなる。硝酸塩のよう
な塩類の分解・還元により生じた前述の触媒金属
が、膨張黒鉛成形体に均一分散・付着せしめられ
ているので、反応速度を著じるしく速めることが
できる。等の利点をもつ。 According to the means of this invention, the chemically stable properties of graphite are maintained as a catalyst. Since graphite can be expanded to a volume of 40 to 300 times, the specific surface area can be increased by about 10 to 100 times. Unlike normal graphite compacts, no dust is generated. Since the aforementioned catalytic metal produced by the decomposition and reduction of salts such as nitrates is uniformly dispersed and adhered to the expanded graphite molded body, the reaction rate can be significantly accelerated. It has the following advantages.
以下に、この発明を一実施例に基き詳述する。
まず、酸処理黒鉛は、結晶のよく整つた黒鉛が好
ましく、鱗片状天然黒鉛を選び、この黒鉛を酸に
浸漬することによつて得た。酸としては何んでも
よいが、実施例では、硝酸と硫酸との混酸にて処
理した。なお酸処理後の黒鉛は、水洗して乾燥し
ておくと、次の工程時に作業性を良好にする。こ
のようにして得た酸処理黒鉛は、硝酸塩の水溶液
に浸漬した。実施例では、硝酸塩水溶液として10
％濃度の硝酸ニツケル水溶液に５分間浸漬した。
そして湿潤させた酸処理黒鉛を乾燥後、400〜900
℃の雰囲気中で急加熱することによつて、酸処理
黒鉛を200倍の嵩に膨張させると同時に、硝酸ニ
ツケルの分解・還元により生じた触媒金属として
のニツケル微粒子が、膨張処理された膨張黒鉛の
表面に均一に分散担持されたものが得られる。そ
して金属微粒子（ニツケル微粒子）が、その表面
に分散担持された膨張黒鉛をロールにて連続的に
加圧成形することによつてシート状の触媒を全く
箇便なやり方で製造できた。 This invention will be described in detail below based on one embodiment.
First, the acid-treated graphite is preferably graphite with well-organized crystals, and flaky natural graphite was selected and obtained by immersing this graphite in acid. Although any acid may be used, in the example, a mixed acid of nitric acid and sulfuric acid was used. Note that the graphite treated with acid should be washed with water and dried to improve workability in the next step. The acid-treated graphite thus obtained was immersed in an aqueous solution of nitrate. In the example, 10 as a nitrate aqueous solution
% concentration of nickel nitrate aqueous solution for 5 minutes.
After drying the wet acid-treated graphite,
By rapidly heating the acid-treated graphite in an atmosphere of It is possible to obtain a substance that is uniformly dispersed and supported on the surface. Then, by continuously press-molding expanded graphite on which fine metal particles (nickel fine particles) were dispersed and supported using a roll, a sheet-shaped catalyst could be manufactured in a completely convenient manner.
以上、詳述した如く、この発明の製造方法によ
つて得られた触媒は、前述したように、主として
〜の利点をもつものである。 As detailed above, the catalyst obtained by the production method of the present invention mainly has the following advantages.
なお、この発明の製造方法は、○イ加熱工程にお
いて、酸処理黒鉛の膨張処理と硝酸塩の分解・還
元が同時にかつ一挙に行える点、○ロ膨張黒鉛の表
面に均一分散担持できる金属微粒子は硝酸塩水溶
液の選定によつてのみ、種々のものをコントロー
ルして製造できる点等の利点を有する。またこの
発明では、加圧成形工程において、シート形状の
みだけでなく、所望の金型にて所望する大きさ、
形状に成形できるものであり、また例えば、シー
ト状に成形した触媒にあつては、必要な大きさに
簡単に切断して用いることもできれば、渦巻状に
巻いて使用することもできる等極めて取扱いの便
利な触媒の製造方法である。 The manufacturing method of the present invention has the following points: (a) In the heating step, the expansion treatment of the acid-treated graphite and the decomposition and reduction of nitrate can be performed simultaneously and at once; It has the advantage that various products can be manufactured in a controlled manner only by selecting the aqueous solution. In addition, in this invention, in the pressure molding process, not only the sheet shape but also the desired size and shape with the desired mold,
It can be molded into any shape, and for example, in the case of a catalyst molded into a sheet, it can be easily cut to the required size or used by winding it into a spiral shape, making it extremely easy to handle. This is a convenient method for producing catalysts.
Claims (1)
燥後加熱することによつて、金属微粒子を分散担
持せしめた膨張黒鉛となし、ついでこれを加圧成
形したことを特徴とする触媒の製造方法。1. A method for producing a catalyst, characterized in that acid-treated graphite is immersed in an aqueous solution of nitrates, dried and heated to form expanded graphite with fine metal particles dispersed thereon, which is then pressure-molded. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58035037A JPS59160538A (en) | 1983-03-03 | 1983-03-03 | Manufacture of catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58035037A JPS59160538A (en) | 1983-03-03 | 1983-03-03 | Manufacture of catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59160538A JPS59160538A (en) | 1984-09-11 |
| JPH0210696B2 true JPH0210696B2 (en) | 1990-03-09 |
Family
ID=12430850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58035037A Granted JPS59160538A (en) | 1983-03-03 | 1983-03-03 | Manufacture of catalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59160538A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020246304A1 (en) | 2019-06-03 | 2020-12-10 | 大王製紙株式会社 | Household thin-paper storing container |
| WO2020246287A1 (en) | 2019-06-03 | 2020-12-10 | 大王製紙株式会社 | Household thin paper storing container |
| WO2020246308A1 (en) | 2019-06-03 | 2020-12-10 | 大王製紙株式会社 | Household thin-paper storing container |
| WO2020246311A1 (en) | 2019-06-03 | 2020-12-10 | 大王製紙株式会社 | Household thin-paper storing container |
| WO2021161888A1 (en) | 2020-02-14 | 2021-08-19 | 大王製紙株式会社 | Household tissue storage container |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2578545B2 (en) * | 1990-04-11 | 1997-02-05 | ソシエテ・ナシオナル・エルフ・アキテーヌ | Active complex and use of the complex as reaction medium |
| EP1700853A4 (en) * | 2003-12-19 | 2009-07-22 | Ube Industries | Processes for producing tetrahydropyran-4-one and pyran-4-one |
-
1983
- 1983-03-03 JP JP58035037A patent/JPS59160538A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020246304A1 (en) | 2019-06-03 | 2020-12-10 | 大王製紙株式会社 | Household thin-paper storing container |
| WO2020246287A1 (en) | 2019-06-03 | 2020-12-10 | 大王製紙株式会社 | Household thin paper storing container |
| WO2020246308A1 (en) | 2019-06-03 | 2020-12-10 | 大王製紙株式会社 | Household thin-paper storing container |
| WO2020246311A1 (en) | 2019-06-03 | 2020-12-10 | 大王製紙株式会社 | Household thin-paper storing container |
| WO2021161888A1 (en) | 2020-02-14 | 2021-08-19 | 大王製紙株式会社 | Household tissue storage container |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59160538A (en) | 1984-09-11 |
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