CN204690123U - 一种高纯度四甲基氢氧化铵的提取设备 - Google Patents
一种高纯度四甲基氢氧化铵的提取设备 Download PDFInfo
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- CN204690123U CN204690123U CN201520150629.4U CN201520150629U CN204690123U CN 204690123 U CN204690123 U CN 204690123U CN 201520150629 U CN201520150629 U CN 201520150629U CN 204690123 U CN204690123 U CN 204690123U
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- tetramethylammonium hydroxide
- hydrogen carbonate
- purification tower
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- ammonium hydrogen
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CN114570307A (zh) * | 2022-03-18 | 2022-06-03 | 西安吉利电子新材料股份有限公司 | 一种从碳酸二甲酯直接生产电子级四甲基氢氧化铵制备***及方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN114570307A (zh) * | 2022-03-18 | 2022-06-03 | 西安吉利电子新材料股份有限公司 | 一种从碳酸二甲酯直接生产电子级四甲基氢氧化铵制备***及方法 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Four methyl ammonium hydroxide's of high -purity equipment that draws Effective date of registration: 20170407 Granted publication date: 20151007 Pledgee: The Bank of Cangzhou West Branch of Limited by Share Ltd. Pledgor: CANGZHOU SUNHEAT CHEMICALS CO.,LTD. Registration number: 2017990000274 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20181130 Granted publication date: 20151007 Pledgee: The Bank of Cangzhou West Branch of Limited by Share Ltd. Pledgor: CANGZHOU SUNHEAT CHEMICALS CO.,LTD. Registration number: 2017990000274 |
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CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: 061108 Cangzhou Lingang Chemical Park, Cangzhou City, Hebei Province Patentee after: Xinlian Electronic Materials Technology Co.,Ltd. Address before: 061108 Cangzhou Lingang Chemical Park, Cangzhou City, Hebei Province Patentee before: CANGZHOU SUNHEAT CHEMICALS CO.,LTD. |