SU414191A1 - - Google Patents

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Publication number
SU414191A1
SU414191A1 SU1813433A SU1813433A SU414191A1 SU 414191 A1 SU414191 A1 SU 414191A1 SU 1813433 A SU1813433 A SU 1813433A SU 1813433 A SU1813433 A SU 1813433A SU 414191 A1 SU414191 A1 SU 414191A1
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SU
USSR - Soviet Union
Prior art keywords
hydrogen sulfide
ammonium
solution
sulphide
column
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Application number
SU1813433A
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Russian (ru)
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Priority to SU1813433A priority Critical patent/SU414191A1/ru
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Publication of SU414191A1 publication Critical patent/SU414191A1/ru

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Description

1one

Изобретение относитс  к области производства сернистого аммони .This invention relates to the production of ammonium sulphide.

Известен способ получени  сульфита аммони  путем взаимодействи  газа с содержанием 85-87% сероводорода с 25% раствором аммиачной воды с последующим донасыщеиием слабого раствора сернистого аммони  сероводородо.м при рН-9 в течение часа.A method of producing ammonium sulfite is known by reacting a gas with a content of 85-87% hydrogen sulfide with a 25% solution of ammonia water, followed by additionally saturating a weak solution of ammonium sulfide with hydrogen sulfide at pH-9 for an hour.

Недостатком известного способа  вл етс  большое содержание сероводорода в отход щих газах (4-5%).The disadvantage of this method is the high content of hydrogen sulfide in the exhaust gases (4-5%).

С целью сокращени  потерь сероводорода и предотвращени  вредных выбросов в ат.мосферу донасыщение раствора сернистого аммони  сероводородом ведут до рН, равного 9,7-10,5.In order to reduce the loss of hydrogen sulfide and prevent harmful emissions into the atmosphere, dosing the ammonium sulfide solution with hydrogen sulfide is carried out to a pH of 9.7-10.5.

Предлагаемый способ дает возможность снизить содержание сероводорода в отход щих газах до 0,02% и тем самым ликвидировать вредные выбросы в атмосферу.The proposed method makes it possible to reduce the content of hydrogen sulfide in the exhaust gases to 0.02% and thereby eliminate harmful emissions into the atmosphere.

Кроме того, проведение донасыщени  в таком узком интервале рН интенсифицирует процесс, поскольку не требуетс  длительного пребывани  раствора в зоне реакции, которое требовалось до получени  рН, равного 9.In addition, dosing in such a narrow pH range intensifies the process, since it does not require a long residence of the solution in the reaction zone, which was required before obtaining a pH of 9.

22

При м е р. В колонну подают 5 л/час аммиачной воды концентрацией 25%. Одновременно в низ колонны подают газ с содержанием сероводорода 86,3%. Полученный раствор сернистого аммони  направл ют на донасыщение во вторую колонну, в низ которой подают сероводородсодержащин газ после прохождени  им первой колонны. Сероводород подают в колонну до получени  сернистого аммони  с рН, равным 10,1. Содержание сероводорода в отход щем из второй колонны газа составл ет 0,015% нротив 4,4% по известному способу, а потери сероводорода не превышают 0,1%, то есть сокращаютс  в 50 раз.An example. In the column serves 5 l / h of ammonia water with a concentration of 25%. At the same time, gas with hydrogen sulfide content of 86.3% is fed to the bottom of the column. The resulting ammonium sulphide solution is sent to the second column for saturation, to the bottom of which hydrogen sulfide-containing gas is fed after passing through the first column. Hydrogen sulfide is fed to the column until ammonium sulphide is obtained with a pH of 10.1. The hydrogen sulfide content in the waste gas from the second column is 0.015% versus 4.4% by the known method, and the loss of hydrogen sulfide does not exceed 0.1%, i.e., reduced by 50 times.

Предмет изобретени Subject invention

Способ получени  сернистого ам.мони  путем взаимодействи  водного раствора аммиака с сероводородом с последующим донасыщением образующегос  раствора сернистого аммони  сероводородом, о т л и ч а ю щ и и с   тем, что, с целью сокращени  потерь сероводорода и предотвращени  вредных выбросов в атмосферу, донасыщение раствора сернистого аммони  сероводородом ведут до рН, равного 9,7- 10,5.The method of obtaining ammonium sulphide by reacting an aqueous solution of ammonia with hydrogen sulphide followed by saturating the resulting solution of ammonium sulphide with hydrogen sulphide, in order to reduce losses of hydrogen sulphide and prevent harmful emissions into the atmosphere ammonium sulfide solution with hydrogen sulfide lead to a pH of 9.7 to 10.5.

SU1813433A 1972-07-21 1972-07-21 SU414191A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1813433A SU414191A1 (en) 1972-07-21 1972-07-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1813433A SU414191A1 (en) 1972-07-21 1972-07-21

Publications (1)

Publication Number Publication Date
SU414191A1 true SU414191A1 (en) 1974-02-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1813433A SU414191A1 (en) 1972-07-21 1972-07-21

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SU (1) SU414191A1 (en)

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