发明名称 |
Apparatus and process for producing (meth) acrylic acid. |
摘要 |
The present invention provides an apparatus for producing (meth)acrylic acid and a process for producing (meth)acrylic acid with this apparatus wherein the apparatus enables the production of (meth)acrylic acid stably for a long period of time by effectively inhibiting the polymerization of (meth)acrylic acid in its production process (for example, in a reboiler). At least a part of the apparatus is made of a nickel-chromium-iron alloy with a molybdenum content of 3 to 20 mass %, but not including 3 mass %, or with a molybdenum content of 1 to 4 mass % and a copper content of 0.5 to 7 mass %. |
申请公布号 |
ZA200007675(B) |
申请公布日期 |
2001.07.13 |
申请号 |
ZA20000007675 |
申请日期 |
2000.12.20 |
申请人 |
NIPPON SHOKUBAI CO, LTD. |
发明人 |
SEI SAKAMOTO NAKAHARA;YUKIHIRO SANADA KAZUHIKO MATSUMOTO;MASATOSHI KENJI UEOKA |
分类号 |
B01D3/00;B01D3/32;B01J19/02;C07B61/00;C07C51/235;C07C51/25;C07C51/44;C07C57/05;C22C38/00 |
主分类号 |
B01D3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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