SU72264A1 - A method of processing nitrous gases - Google Patents

A method of processing nitrous gases

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Publication number
SU72264A1
SU72264A1 SU39579A SU39579A SU72264A1 SU 72264 A1 SU72264 A1 SU 72264A1 SU 39579 A SU39579 A SU 39579A SU 39579 A SU39579 A SU 39579A SU 72264 A1 SU72264 A1 SU 72264A1
Authority
SU
USSR - Soviet Union
Prior art keywords
nitrate
lead
nitrite
solution
absorption
Prior art date
Application number
SU39579A
Other languages
Russian (ru)
Inventor
В.Ф. Гогин
Original Assignee
В.Ф. Гогин
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 В.Ф. Гогин filed Critical В.Ф. Гогин
Priority to SU39579A priority Critical patent/SU72264A1/en
Application granted granted Critical
Publication of SU72264A1 publication Critical patent/SU72264A1/en

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  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Description

Изобретение преследует цель обеспечить полное улавливание окислов азота из хвостовых нитрозных газов азотпокислотных установок. От обычно прил ен емого поглощени  нитрозных газов содовым раствором или известковым молоком предлагаемый способ отличаетс  исключением расхода дефицитной соды, отсутствием громоздкого известкового хоз йства и выпуском аммиачной селитры вместо менее ценных натриевой или кальциевой . Способ заключаетс  в поглощении нитрозных газов гидроокисью свинца и последующей ее регенерации . Схема процесса следующа .The invention aims to ensure the complete trapping of nitrogen oxides from the tail nitrous gases of nitric acid plants. The proposed method differs from the usually applied absorption of nitrous gases by soda solution or lime milk, with the exception of the consumption of deficient soda, the absence of cumbersome lime economy and the release of ammonium nitrate instead of less valuable sodium or calcium. The method consists in the absorption of nitrous gases by lead hydroxide and its subsequent regeneration. The process diagram is as follows.

Claims (5)

1.Окислы азота пропускаютс  через скрубер, орошаемый суспензией гидроокиси свинца в насыщенном растворе нитрита и нитрата натри .1. Nitrogen oxides are passed through a scrubber irrigated with a suspension of lead hydroxide in a saturated solution of nitrite and sodium nitrate. 2.Образовавшиес  основные нитрит и нитрат свинца отдел ютс  от маточного щелока и обрабатываютс  азотной кислотой дл  превращени  нитрита в нитрат. Выдел ющиес  при этом окислы азота используютс  дл  донасыщени  продукционной азотной кислоты.2. The basic lead nitrite and nitrate formed are separated from the mother liquor and treated with nitric acid to convert the nitrite to nitrate. The nitrogen oxides released during this process are used to saturate the production nitric acid. 3.Маточный щелок после отделени  кристаллов по п. 2 смешиваетс 3. Master liquor after separation of the crystals according to claim 2 is mixed с гидроокисью свинца и поступает обратно в процесс по п. 1.with lead hydroxide and goes back into the process of claim 1. 4.Получившийс  по п. 2 раствор нитрата свинца, содержащий часть нитрата в виде кристаллов, обрабатываетс  раствором нитрата аммони  дл  растворени  кристаллов п затем аммиаком дл  перевода нитрата свинца в нитрат ал .дмони .4. The lead nitrate solution obtained under item 2, containing a portion of the nitrate in the form of crystals, is treated with an ammonium nitrate solution to dissolve the crystals and then ammonia to convert the lead nitrate to ammonium nitrate. 5.Выдел юща с  по п. 4 гидроокись свинца отдел етс  от жидкости и после промывки водой возвращаетс  в процессы, по п. 3. Оставша с  жидкость представл ет собой насыщенный раствор нитрата ал .люни  и направл -.етс  на выпарку.5. The lead hydroxide separated according to claim 4 is separated from the liquid and returned to the processes after washing with water, according to claim 3. The remaining liquid is a saturated solution of alumina nitrate and sent to evaporation. Изменением описанной схемы  вл етс  способ, по которому полученные основные нитрит и нитрат свинца разлагают кислым раствором, ,полученным поглощениел нитрозных газов нитратол свинца.A variation of the scheme described is the way in which the resulting basic nitrite and lead nitrate are decomposed by an acidic solution, the absorption of nitrous gases by lead nitrata obtained. П р е д Л е т изобретени P re d Invention 1. Способ переработки нитрозных газов поглощением гидратом окиси свинца, отличающийс  тем, что поглощение производ т суспензией гидроокиси свинца в растворе1. A method of processing nitrous gases by absorption of lead oxide by hydrate, characterized in that the absorption is carried out by suspension of lead hydroxide in solution 4747
SU39579A 1940-12-27 1940-12-27 A method of processing nitrous gases SU72264A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU39579A SU72264A1 (en) 1940-12-27 1940-12-27 A method of processing nitrous gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU39579A SU72264A1 (en) 1940-12-27 1940-12-27 A method of processing nitrous gases

Publications (1)

Publication Number Publication Date
SU72264A1 true SU72264A1 (en) 1947-11-30

Family

ID=48248845

Family Applications (1)

Application Number Title Priority Date Filing Date
SU39579A SU72264A1 (en) 1940-12-27 1940-12-27 A method of processing nitrous gases

Country Status (1)

Country Link
SU (1) SU72264A1 (en)

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