SU567664A1 - Method of purifying used sulphuric acid from organic impurities - Google Patents
Method of purifying used sulphuric acid from organic impuritiesInfo
- Publication number
- SU567664A1 SU567664A1 SU7001485917A SU1485917A SU567664A1 SU 567664 A1 SU567664 A1 SU 567664A1 SU 7001485917 A SU7001485917 A SU 7001485917A SU 1485917 A SU1485917 A SU 1485917A SU 567664 A1 SU567664 A1 SU 567664A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- organic impurities
- sulphuric acid
- sulfuric acid
- hypochlorite
- solution
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
1one
Известен способ очистки отработанной серной кислоты от органических примесей 1тутем обработки ее окислителем, в качестве которого используют азотную кислоту ij . Однако в этом случае образуетс значительное количество окислов азота, дл утилизации которых необходима дополнте;гьна стади обработки.A known method of cleaning waste sulfuric acid from organic impurities 1 by processing it with an oxidizing agent, which is nitric acid ij. However, in this case, a significant amount of oxides of nitrogen is formed, for the disposal of which it is necessary to complete the processing stage.
Известен также способ очистки серной лнслоты от органических примесей путем обработки ее хлором при 100 С с последующей фильтрацией 2 .There is also known a method of cleaning sulfuric acid from organic impurities by treating it with chlorine at 100 ° C, followed by filtration 2.
Недостатками этого способа вл ютс наличие xfiopa в отход щих газах, загр знение очищенной серной кислоты хлористым водородом к больша продолжительность процесса {4О час).The disadvantages of this method are the presence of xfiopa in the exhaust gases, the contamination of the purified sulfuric acid with hydrogen chloride to a longer process {4 oh hours).
Цель изоЬ/ютени упрощение и интенсификаци процесса.The goal of an io / ueni is to simplify and intensify the process.
Поставленна пель достигаетс тем,The delivered pell is achieved by
что окисление органических примесей, содержащихс в серной кислоте, ведут раствором гипохлорита натри или калыш .That the oxidation of organic impurities contained in sulfuric acid is carried out with a solution of sodium hypochlorite or calish.
Процесс проводитс при 2О-6О С в те- че1шв 1-2 час, при этом объемное отношение раствора гипохлорита к серной кислоте равно 0,5-2, Используемый раствор гипохлорита имеет концентрацию 1-8%.The process is carried out at 2O-6O C during 1–2 hours, the volume ratio of the hypochlorite solution to sulfuric acid being 0.5–2. The hypochlorite solution used has a concentration of 1–8%.
Пример. Берут отработанную серную кислоту, содержащую 86,2% и . 2,71 % органических примесей, и при 25с обрабатывают 8%-ным раствором гипохлорита кальци при объемном отношении гипохлорита кальци к 0 , равном 1,4.Example. Take waste sulfuric acid containing 86.2% and. 2.71% of organic impurities, and at 25c are treated with an 8% solution of calcium hypochlorite with a calcium hypochlorite volume ratio of 0 to 1.4.
Процесс ведут в течекиэ 1 час. Остаточное I содержание органических примесей в серной кислоте составл ет 0,21%, концентраци кислоты 40,8%.The process is conducted during 1 hour. The residual I content of organic impurities in sulfuric acid is 0.21%, the acid concentration is 40.8%.
Пример 2. Берут «шслотгу такого же состава, как в примере 1, и обрабатыва«ot ее гипохлоритом натри при объемном отношеннн гипохлорита натри к серной кислоте 0,5 - в течение 1,2 час.Example 2. A “schislot of the same composition as in Example 1 was taken, and“ ot ”was treated with sodium hypochlorite with a volume ratio of sodium hypochlorite to sulfuric acid 0.5 for 1.2 hours.
Остаточное содержание органических прим сей составл ет 0,15 %, концентраци кислоты 69,8%.The residual organic content is 0.15%, the acid concentration is 69.8%.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7001485917A SU567664A1 (en) | 1970-10-23 | 1970-10-23 | Method of purifying used sulphuric acid from organic impurities |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7001485917A SU567664A1 (en) | 1970-10-23 | 1970-10-23 | Method of purifying used sulphuric acid from organic impurities |
Publications (1)
Publication Number | Publication Date |
---|---|
SU567664A1 true SU567664A1 (en) | 1977-08-05 |
Family
ID=20458836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU7001485917A SU567664A1 (en) | 1970-10-23 | 1970-10-23 | Method of purifying used sulphuric acid from organic impurities |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU567664A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5547655A (en) * | 1994-11-28 | 1996-08-20 | Chou; Tse-Chaun | Recovery and regeneration of sulfuric acid |
-
1970
- 1970-10-23 SU SU7001485917A patent/SU567664A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5547655A (en) * | 1994-11-28 | 1996-08-20 | Chou; Tse-Chaun | Recovery and regeneration of sulfuric acid |
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