Invention Grant
US08440159B2 Method for extracting ammonium salt and methanol from a liquid obtained from foul condensates in a cellulose pulp mill
有权
从纤维素纸浆机中得到的粗劣缩合物中得到的液体中提取铵盐和甲醇的方法
- Patent Title: Method for extracting ammonium salt and methanol from a liquid obtained from foul condensates in a cellulose pulp mill
- Patent Title (中): 从纤维素纸浆机中得到的粗劣缩合物中得到的液体中提取铵盐和甲醇的方法
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Application No.: US12744479Application Date: 2008-11-26
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Publication No.: US08440159B2Publication Date: 2013-05-14
- Inventor: Jorg Brucher , Anders Johan Norberg
- Applicant: Jorg Brucher , Anders Johan Norberg
- Applicant Address: SE Gothenburg
- Assignee: Metso Power AB
- Current Assignee: Metso Power AB
- Current Assignee Address: SE Gothenburg
- Agency: Fasth Law Offices
- Agent Rolf Fasth
- Priority: SE0702610 20071126
- International Application: PCT/SE2008/051358 WO 20081126
- International Announcement: WO2009/070110 WO 20090604
- Main IPC: C01B21/20
- IPC: C01B21/20 ; C01C1/18 ; D21C3/20
Abstract:
Desirable chemicals are recovered from a raw material that is formed in substantial amounts during the production of cellulose pulp from renewable lingo-cellulose material. An ammonia/ammonium-containing methanol/water mixture is acidified with an acid that has the ability of forming ammonium salt with the ammonium. The mixture is circulated and passed through an apparatus that has an indirect heat exchanger combined with an storage volume fitted with a gas collection device.
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