SU567664A1 - Method of purifying used sulphuric acid from organic impurities - Google Patents

Method of purifying used sulphuric acid from organic impurities

Info

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
Application number
SU7001485917A
Other languages
Russian (ru)
Inventor
Раиль Бакирович Валитов
Габдульбар Гарифзянович Гарифзянов
Раишит Минигалеевич Садрисламов
Альберт Мухлисович Тухватуллин
Original Assignee
Терлитамакский Химический Завод
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Терлитамакский Химический Завод filed Critical Терлитамакский Химический Завод
Priority to SU7001485917A priority Critical patent/SU567664A1/en
Application granted granted Critical
Publication of SU567664A1 publication Critical patent/SU567664A1/en

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)

1. Способ очистки отработанной серной кислоты от органических примесей путем1. The method of purification of spent sulfuric acid from organic impurities by ок слвви  их. отличаюшийс  т«м, что, с целью упрошени    интенсификадн  ороцесса, ок слевие ведут раствором г лохлор та натри  иле кальци .ok svvvi them. It is noted that, in order to simplify the intensive process, the liquidation is carried out with a solution of chlorochlorine and sodium calcium. 2. Сп(х:об поп. 1, отличаю- ш и с в тем, что процесс осушествл ют пр  20-60 С в течение 1-2 час и при объемном отношении рйстйора гипохлорита Е сврнсД кислоте 0,5-2.2. Cn (x: about pop. 1, different from the fact that the process takes about 20–60 ° C for 1–2 hours and with a volume ratio of hypochlorite resistor E CrnSD acid 0.5–2. 3. Способ по п. 1, отличаюшийс  тем, что раствор гипохлорита испопьауют с конаен ра1|квй 1-8%.,3. The method according to claim 1, characterized in that the hypochlorite solution is used from 1 to 8%. Источники информации, прин тые во внимание при экспертизе:Sources of information taken into account in the examination: 1.ПатентСША№ 2390316, кл.23-1 73, 1945.1.Patent number 2390316, class 23-1 73, 1945. 2, Авторское свидетельство СССР hfe 169084, кл. С 01 В 17/9О, 1964.2, USSR author's certificate hfe 169084, cl. From 01 to 17 / 9O, 1964.
SU7001485917A 1970-10-23 1970-10-23 Method of purifying used sulphuric acid from organic impurities SU567664A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
FI56400C (en) FOERFARANDE FOER AVSKILJNING AV KVICKSILVER FRAON KVICKSILVERHALTIGA VAERSKEFASER
KR950704187A (en) Process for removing NOx / SOx oxides from gases
EP0008488A1 (en) Process of removing nitrogen oxides from gaseous mixtures
JPS63100918A (en) Simultaneous removing method for mercury and nitrogen oxide in exhaust gas
SU567664A1 (en) Method of purifying used sulphuric acid from organic impurities
GB1021963A (en) A process for working up waste gases containing hydrogen chloride
FR2378722A1 (en) Removing dissolved organic impurities from waste water - by simultaneous adsorption on adsorbent and destructive oxidn. e.g. with ozone
JPS6427683A (en) Method of removing chlorine ion in contaminated solid waste such as incinerated ash containing contaminant of actinide group, etc.
DK149802B (en) PROCEDURE FOR THE REMOVAL OF ORGANIC POLLUTANTS FROM Aqueous PHOSPHORIC ACID SOLUTIONS
US1631823A (en) Purifying gases
JPS55109490A (en) Treating method of cyan-containing waste water
GB1229107A (en)
US2795544A (en) Treatment of liquors containing thiocyanate, thiosulphate, and phenols
JPS58224135A (en) Method for recovering mercury from waste water
SU1080838A1 (en) Method of cleaning waste gases from phenol,formaldehyde and accompanying additives
JPH0194998A (en) Photochemical treatment of waste water
JP3434113B2 (en) Waste acid treatment method
JPH02218417A (en) Method for removing hydrogen sulfide in flue gas
SU569318A1 (en) Method of purifying waste gas
SU1142442A1 (en) Method of removing organic admixtures from used sulfuric acid
RU2098359C1 (en) Method of purifying water
JPH0466191A (en) Water cleaning method by ozone
SU633567A1 (en) Method of cleaning air from hydrogen sulfide
JP3966934B2 (en) Carbon monoxide gas purification method
JPH0117434B2 (en)