GB495328A - Improved manufacture of calcium nitrate from ammoniacal gases - Google Patents
Improved manufacture of calcium nitrate from ammoniacal gasesInfo
- Publication number
- GB495328A GB495328A GB1330737A GB1330737A GB495328A GB 495328 A GB495328 A GB 495328A GB 1330737 A GB1330737 A GB 1330737A GB 1330737 A GB1330737 A GB 1330737A GB 495328 A GB495328 A GB 495328A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonium nitrate
- liquor
- ammonia
- nitric acid
- gases
- 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.)
- Expired
Links
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 title abstract 10
- 239000007789 gas Substances 0.000 title abstract 7
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 14
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 abstract 8
- 229910021529 ammonia Inorganic materials 0.000 abstract 7
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 6
- 229910017604 nitric acid Inorganic materials 0.000 abstract 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract 3
- 235000012255 calcium oxide Nutrition 0.000 abstract 3
- 239000000292 calcium oxide Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 238000010521 absorption reaction Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 1
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 1
- 239000003570 air Substances 0.000 abstract 1
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 1
- YAECNLICDQSIKA-UHFFFAOYSA-L calcium;sulfanide Chemical compound [SH-].[SH-].[Ca+2] YAECNLICDQSIKA-UHFFFAOYSA-L 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 239000003500 flue dust Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 239000004571 lime Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000011269 tar Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/36—Nitrates
- C01F11/38—Preparation with nitric acid or nitrogen oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
In a method for the production of calcium nitrate, ammoniacal gases obtained by the distillation or gasefication of fuels or similar ammoniacal gases, after being freed from flue dust, tar, and hydrogen sulphide, are treated with aqueous nitric acid or ammonium nitrate liquor containing nitric acid, the ammonium nitrate liquor produced is converted by burnt lime into calcium nitrate liquor and gaseous ammonia, and the latter catalytically oxidized to nitric acid which serves for the absorption of more ammonia. In a modification, hydrogen sulphide is first removed from the gases by milk of lime, and the calcium hydrosulphide solution formed reacted with the ammonium nitrate obtained by absorbing the ammonia to produce a calcium nitrate liquor and a mixture of hydrogen sulphide and ammonia. From the mixture ammonia may be washed out by cold water, and air or gases containing oxygen be passed through the ammoniacal liquor to obtain a gas mixture which is converted to nitric acid. In the ammonia absorption step, the gases may first be treated in countercurrent with the ammonium nitrate liquor produced, then with ammonium nitrate liquor containing nitric acid, and finally be treated with alkaline ammonium nitrate liquor to absorb entrained nitric acid. The gaseous ammonia obtained by reacting the ammonium nitrate liquor with burnt lime may be freed from water vapour by contacting it with cold ammonium nitrate liquor, whereby the latter is heated prior to its reaction with the lime. The calcium nitrate liquor, which preferably contains an excess of calcium oxide, is worked up in known manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1330737A GB495328A (en) | 1937-05-10 | 1937-05-10 | Improved manufacture of calcium nitrate from ammoniacal gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1330737A GB495328A (en) | 1937-05-10 | 1937-05-10 | Improved manufacture of calcium nitrate from ammoniacal gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB495328A true GB495328A (en) | 1938-11-10 |
Family
ID=10020573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1330737A Expired GB495328A (en) | 1937-05-10 | 1937-05-10 | Improved manufacture of calcium nitrate from ammoniacal gases |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB495328A (en) |
-
1937
- 1937-05-10 GB GB1330737A patent/GB495328A/en not_active Expired
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