A device and method for recovering methanesulfonic acid
A methanesulfonic acid and recovery tower technology, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve the problems of unsuitable waste MSA recovery, long route, high energy consumption, etc., and achieve efficient and environmentally friendly recycling , the effect of lowering the temperature
Active Publication Date: 2017-06-13
PETROCHINA CO LTD
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
These methods are mainly used in the purification of the MSA of primary production, and raw material is relatively simple, and distillation efficiency is lower, and route is longer, and energy consumption is also higher, especially to water content higher (about 50% water), but is not suitable for Recovery of spent MSA containing other high-boiling impurities (such as using MSA as a catalyst for recovery of MSA after Friedel alkylation reaction)
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0047] This embodiment provides a device for recovering methanesulfonic acid, the structure of which is as follows figure 1 As shown, the device for recovering methanesulfonic acid includes: a raw material buffer tank 1, a scraper preheater 2, a scraper evaporator 3, a scraper separation column 4 and an MSA recovery tower 8;
[0048] Among them, the raw material buffer tank 1, the scraper preheater 2, and the scraper evaporator 3 are connected in sequence;
[0049] The scraped evaporator 3 includes heating equipment and separation equipment. The top of the scraped evaporator 3 communicates with the scraped separation column 4, and the top of the scraped separation column 4 communicates with the scraped primary condenser 5. The scraped primary condenser The top of 5 communicates with scraper secondary condenser 6;
[0050]The scraped evaporator 3 communicates with the MSA recovery tower 8, and a scraped cooler 7 is arranged between the liquid phase outlet of the scraped evapor...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| melting point | aaaaa | aaaaa |
| boiling point | aaaaa | aaaaa |
Login to View More
Abstract
The invention provides a device and method for recovering methanesulfonic acid. The device includes: raw material buffer tank, scraper preheater, scraper evaporator, scraper separation column and MSA recovery tower; raw material buffer tank, scraper preheater, scraper evaporator connected in sequence; scraper evaporator The top is connected with the scraper separation column; the bottom of the scraped evaporator is connected with the MSA recovery tower; the top of the MSA recovery tower is connected with the recovery tower condenser, and both sides of the bottom of the MSA recovery tower are respectively connected with the MSA cooler and the recovery tower reboiler Connected; the MSA recovery tower is connected with the raw material buffer tank. The present invention also provides a method for recovering methanesulfonic acid realized by using the above-mentioned device. The device and method for recovering methanesulfonic acid provided by the invention can effectively remove water and impurities in acid water, and efficiently and environmentally friendly recover and utilize methanesulfonic acid.
Description
technical field [0001] The invention relates to a device and method for recovering methanesulfonic acid, belonging to the technical field of petrochemical separation. Background technique [0002] Methanesulfonic acid (MSA) is a colorless or slightly brown oily liquid, solid at low temperature, strong acid with high boiling point, melting point 20°C, boiling point 167°C (13.33kPa), relative density 1.4812 (18°C), soluble in water It will release a lot of heat when it is mixed with alcohol and ether. It is insoluble in alkanes, benzene, toluene, etc., does not decompose in boiling water and hot lye, and has a strong corrosive effect on metal iron, copper, and lead. It is a raw material for medicine and pesticides. Used as dehydrating agent, paint curing accelerator, fiber treatment agent, solvent, alkylation, esterification and polymerization catalyst. [0003] Because MSA is widely used, used in a large amount, and expensive, it is very necessary to recycle MSA. [0004] I...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C07C309/04C07C303/44
Inventor 王红庄周朝辉张群孙成斌蔡红岩毛学峰
Owner PETROCHINA CO LTD