CN107162938B - 用卧式板框过滤机过滤双氰胺渣的双氰胺生产方法 - Google Patents
用卧式板框过滤机过滤双氰胺渣的双氰胺生产方法 Download PDFInfo
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- CN107162938B CN107162938B CN201710371596.XA CN201710371596A CN107162938B CN 107162938 B CN107162938 B CN 107162938B CN 201710371596 A CN201710371596 A CN 201710371596A CN 107162938 B CN107162938 B CN 107162938B
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- dicyandiamide
- washing
- filter press
- flame filter
- cyanamide
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C277/00—Preparation of guanidine or its derivatives, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
- C07C277/08—Preparation of guanidine or its derivatives, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups of substituted guanidines
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- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
实施例 | 氰胺液的进料温度 | 洗涤前高压空气进气时间 | 洗涤后高压空气进气时间 |
实施例2 | 63℃ | 10min | 5min |
实施例3 | 65℃ | 8min | 8min |
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CN201710371596.XA CN107162938B (zh) | 2017-05-24 | 2017-05-24 | 用卧式板框过滤机过滤双氰胺渣的双氰胺生产方法 |
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CN201710371596.XA CN107162938B (zh) | 2017-05-24 | 2017-05-24 | 用卧式板框过滤机过滤双氰胺渣的双氰胺生产方法 |
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CN107162938A CN107162938A (zh) | 2017-09-15 |
CN107162938B true CN107162938B (zh) | 2019-08-16 |
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CN115286011A (zh) * | 2022-07-21 | 2022-11-04 | 宁夏嘉峰化工有限公司 | 一种高效、节能的氰胺回收工艺及系统 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102126989A (zh) * | 2010-12-31 | 2011-07-20 | 张胜勇 | 一种利用双氰胺废渣制备双氰胺、氯化钠和炭的方法 |
CN102936211A (zh) * | 2012-11-13 | 2013-02-20 | 宁夏宝马化工集团有限公司 | 连续生产双氰胺的方法 |
CN103011161A (zh) * | 2012-12-19 | 2013-04-03 | 宁夏兴平精细化工股份有限公司 | 一种氰胺废渣的综合利用方法 |
CN105294509A (zh) * | 2015-12-07 | 2016-02-03 | 上海弗鲁克科技发展有限公司 | 一步法合成双氰胺的系统与方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102126989A (zh) * | 2010-12-31 | 2011-07-20 | 张胜勇 | 一种利用双氰胺废渣制备双氰胺、氯化钠和炭的方法 |
CN102936211A (zh) * | 2012-11-13 | 2013-02-20 | 宁夏宝马化工集团有限公司 | 连续生产双氰胺的方法 |
CN103011161A (zh) * | 2012-12-19 | 2013-04-03 | 宁夏兴平精细化工股份有限公司 | 一种氰胺废渣的综合利用方法 |
CN105294509A (zh) * | 2015-12-07 | 2016-02-03 | 上海弗鲁克科技发展有限公司 | 一步法合成双氰胺的系统与方法 |
Non-Patent Citations (1)
Title |
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双氰胺渣浆在立式压滤机上的试验;何军等;《过滤与分离》;20071231;第17卷(第4期);31-33页 |
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Effective date of registration: 20190225 Address after: 753000 Ningxia Hui Autonomous Region Shizuishan Eco-economic Development Zone Belite Chemical Co., Ltd. Applicant after: BEILITE CHEMICAL CO., LTD. Applicant after: Ningxia Baillet biological science and Technology Co Ltd Applicant after: Ningxia Belite Cyanamide Industry Development Co., Ltd. Address before: 753400 Belite Chemical Co., Ltd. of Shizuishan Eco-economic Development Zone, Ningxia Hui Autonomous Region Applicant before: BEILITE CHEMICAL CO., LTD. |
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