CN1486966A - 四塔串联加工轻苯的生产工艺 - Google Patents
四塔串联加工轻苯的生产工艺 Download PDFInfo
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- CN1486966A CN1486966A CNA031439845A CN03143984A CN1486966A CN 1486966 A CN1486966 A CN 1486966A CN A031439845 A CNA031439845 A CN A031439845A CN 03143984 A CN03143984 A CN 03143984A CN 1486966 A CN1486966 A CN 1486966A
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Application Number | Priority Date | Filing Date | Title |
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CN 03143984 CN1226248C (zh) | 2003-08-07 | 2003-08-07 | 四塔串联加工轻苯的生产工艺 |
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CN 03143984 CN1226248C (zh) | 2003-08-07 | 2003-08-07 | 四塔串联加工轻苯的生产工艺 |
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CN1486966A true CN1486966A (zh) | 2004-04-07 |
CN1226248C CN1226248C (zh) | 2005-11-09 |
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CN 03143984 Expired - Fee Related CN1226248C (zh) | 2003-08-07 | 2003-08-07 | 四塔串联加工轻苯的生产工艺 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106278896A (zh) * | 2015-06-12 | 2017-01-04 | 中国石油化工股份有限公司 | 合成草酸二甲酯过程中分离碳酸二甲酯的装置 |
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2003
- 2003-08-07 CN CN 03143984 patent/CN1226248C/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106278896A (zh) * | 2015-06-12 | 2017-01-04 | 中国石油化工股份有限公司 | 合成草酸二甲酯过程中分离碳酸二甲酯的装置 |
CN106278896B (zh) * | 2015-06-12 | 2019-09-06 | 中国石油化工股份有限公司 | 合成草酸二甲酯过程中分离碳酸二甲酯的方法 |
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CN1226248C (zh) | 2005-11-09 |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: Baotou Baotou Steel Factory the Inner Mongolia Autonomous Region Queensland coking plant of Baotou Steel Patentee after: NeiMenggu BaoGang GangLian Co., Ltd. Coking Factory Address before: Baotou Baotou Steel Factory the Inner Mongolia Autonomous Region Queensland coking plant of Baotou Steel Patentee before: Coking Plant, Baotou Iron &. Steel Corp. |
|
C56 | Change in the name or address of the patentee |
Owner name: NEIMENGGU BAOGANG GANGLIAN CO., LTD. COKING FACTOR Free format text: FORMER NAME: BAOGANG COKING FACTORY |
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C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051109 |