JPS5734003A - Obtaining method of steam for concentrating phosphoric acid from heat removed from absorption system in sulfuric acid preparing apparatus - Google Patents
Obtaining method of steam for concentrating phosphoric acid from heat removed from absorption system in sulfuric acid preparing apparatusInfo
- Publication number
- JPS5734003A JPS5734003A JP8346280A JP8346280A JPS5734003A JP S5734003 A JPS5734003 A JP S5734003A JP 8346280 A JP8346280 A JP 8346280A JP 8346280 A JP8346280 A JP 8346280A JP S5734003 A JPS5734003 A JP S5734003A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- heat
- sulfuric acid
- heat exchanger
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To recover the unrecovered and dissipated heat energy and obtain a sufficient heat source, by passing a high-temperature gas containing SO3 through a newly installed high-temperature absorbing column, and then passing the gas through a low-temperature absorbing column.
CONSTITUTION: The sensible heat of a high-temperature gas containing SO3 after the completion of the reaction in a converter 6 is recovered by a heat exchanger 9 and an economizer 10 to 220W160°C. The gas is then brought into the countercurrent contact with high-temperature sulfuric acid in a high-temperature absorbing column 11 to absorb the sensible heat of the gas and the heat generated by the condensation and absorption of SO3 by a circulating acid. The discharged gas is then treated with an absorbing column 12 in which sulfuric acid is sprinkled at 75W85°C, and the same operations are carried out in a heat exchanger 13, economizer 14, high-temperature absorbing column 15 and 16 in the same manner as in the apparatus 9W12. The circulating acid heated at a high temperature and concentrated to a high concentration in the columns 11 and 15 is partly fed to a drying column 1 and mostly to a diluting tank 18 where the heat of dilution is generated by the inflow of low-temperature sulfuric acid from the column 1 through a heat exchanger 19 and inflow of the water for adjusting the acid concentration. The resultant sulfuric acid is passed through a heat exchanger 20 and sprinkled from the tops of the columns 11 and 15. Water which received the heat is circulated through an evaporator 22 and the heat exchanger 20 operated at 0.5W20ata, and generated steam is utilized for concentrating phosphoric acid, etc.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8346280A JPS5734003A (en) | 1980-06-21 | 1980-06-21 | Obtaining method of steam for concentrating phosphoric acid from heat removed from absorption system in sulfuric acid preparing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8346280A JPS5734003A (en) | 1980-06-21 | 1980-06-21 | Obtaining method of steam for concentrating phosphoric acid from heat removed from absorption system in sulfuric acid preparing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5734003A true JPS5734003A (en) | 1982-02-24 |
Family
ID=13803124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8346280A Pending JPS5734003A (en) | 1980-06-21 | 1980-06-21 | Obtaining method of steam for concentrating phosphoric acid from heat removed from absorption system in sulfuric acid preparing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5734003A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6036310A (en) * | 1983-07-05 | 1985-02-25 | モンサント コンパニー | Process and device for recovering heat from concentrated sulfuric acid |
| JPS60179113A (en) * | 1984-02-27 | 1985-09-13 | Matsushita Electric Ind Co Ltd | Gas separation apparatus |
| JPS61117105A (en) * | 1984-11-09 | 1986-06-04 | モンサント・コンパニー | Manufacture of sulfuric acid |
| JPH0363434A (en) * | 1989-07-31 | 1991-03-19 | Komatsu Ltd | Dehumidifying or humidifying hollow fiber type membrane unit |
| JP2002053311A (en) * | 2000-08-07 | 2002-02-19 | Hitachi Zosen Corp | Method for recovering heat in sulfuric acid manufacturing equipment |
| CN104229752A (en) * | 2013-06-18 | 2014-12-24 | 天津渤大硫酸工业有限公司 | Acid evaporator heating system |
-
1980
- 1980-06-21 JP JP8346280A patent/JPS5734003A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6036310A (en) * | 1983-07-05 | 1985-02-25 | モンサント コンパニー | Process and device for recovering heat from concentrated sulfuric acid |
| JPH0459243B2 (en) * | 1983-07-05 | 1992-09-21 | Monsanto Co | |
| JPS60179113A (en) * | 1984-02-27 | 1985-09-13 | Matsushita Electric Ind Co Ltd | Gas separation apparatus |
| JPS61117105A (en) * | 1984-11-09 | 1986-06-04 | モンサント・コンパニー | Manufacture of sulfuric acid |
| JPH0472763B2 (en) * | 1984-11-09 | 1992-11-19 | Monsanto Co | |
| JPH0363434A (en) * | 1989-07-31 | 1991-03-19 | Komatsu Ltd | Dehumidifying or humidifying hollow fiber type membrane unit |
| JP2002053311A (en) * | 2000-08-07 | 2002-02-19 | Hitachi Zosen Corp | Method for recovering heat in sulfuric acid manufacturing equipment |
| CN104229752A (en) * | 2013-06-18 | 2014-12-24 | 天津渤大硫酸工业有限公司 | Acid evaporator heating system |
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