SU1437363A1 - Method of purifying acetic acid in its regeneration in production of cellulose acetates and acetic anhydride - Google Patents

Method of purifying acetic acid in its regeneration in production of cellulose acetates and acetic anhydride Download PDF

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Publication number
SU1437363A1
SU1437363A1 SU864157274A SU4157274A SU1437363A1 SU 1437363 A1 SU1437363 A1 SU 1437363A1 SU 864157274 A SU864157274 A SU 864157274A SU 4157274 A SU4157274 A SU 4157274A SU 1437363 A1 SU1437363 A1 SU 1437363A1
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USSR - Soviet Union
Prior art keywords
regeneration
production
acid
acetic anhydride
acetic acid
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SU864157274A
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Russian (ru)
Inventor
Михаил Васильевич Степанов
Валерий Борисович Рудак
Марьян Петрович Мулява
Сергей Сидорович Левуш
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Предприятие П/Я А-7372
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Abstract

Изобретение относитс  к насьпцен- ным карбоновым кислотам, в частности к очистке уксусной кислоты в процессе регенерировани  ее в производстве ацетатов целлюлозы и уксусного ангидрида Цель - снижение расхода пе- роксида водорода. Очистку ведут путем обработки пероксидом водорода в присутствии добавки полифосфорной кислоты или ее соли при массовом соотношении , равном 1:(О,023-0,22). Процесс ведут в режиме кипени  и предпочтительно в присутствии добавки уксусно- го ангидрида. Расход окислител  снижаетс  в 3 раза (с 0,66 до 0,2;2 мл на 150 г очищаемой кислоты). 1 з,п, ф-лы, 1 табл.The invention relates to applied carboxylic acids, in particular, to the purification of acetic acid during its regeneration in the production of cellulose acetate and acetic anhydride. The goal is to reduce the consumption of hydrogen peroxide. Cleaning lead by treatment with hydrogen peroxide in the presence of additives polyphosphoric acid or its salt with a mass ratio equal to 1: (O, 023-0.22). The process is carried out in a boiling mode and preferably in the presence of an additive of acetic anhydride. The oxidizer consumption is reduced 3 times (from 0.66 to 0.2; 2 ml per 150 g of the acid to be purified). 1 s, n, f-ly, 1 tab.

Description

щества 99-, 2%., OKHCJ V ::. 0,022 г 5кз/л,, пеоканг i: -:99%, 2%., OKHCJ V ::. 0.022 g 5kz / l ,, peokang i: -:

1с) с лэроксиг1о:м : ство 3()%™ног о ::50 ih ,,; -o - скда водороп;а со : ;- j; . 1c) with Lexing: m: leg 3 ()% ™ of legs about: 50 ih ,,; -o - skda zorop; a with:; - j; .

150 г уксусной TTHC IOV:150 g acetic TTHC IOV:

контакта 1 ч: nojiy-ka O : г. держанием олис.гт;-:с;-.к л - роксида водорода UjOn :: О,,022 г-экв/л cf OTBe-p---s ство уксусной i ;i-ir:4Ov iv i f требоза и м l GC i / показaтeл  г. Раг -л: л Г ;- -v; таблице„contact 1 h: nojiy-ka O: g. by holding olis.gt; -: s; -. to l - hydrogen oxide UjOn :: O ,, 022 g-eq / l cf OTBe-p --- s acetic acid i ; i-ir: 4Ov iv if requirement and m l GC i / indicated by Par-l: l G; -v; table „

П р. и i е р -i-A... ,,-:;: вл ют аналогично г;р:- :ча}1:. колкчаства перокслла г.л м  контакта-. Р&-р-лгьта - таблица, Тол-лко -лои .Etc. and i e p -i-A ... ,, -::: are similar to r; p: -: cha} 1 :. Kolkuchstva peroxsl. F & -rg-table, Tol-lko-loi.

2ч к 3 П прсутсггз: ; водорода удалось noj iy : кислоту с г;аг;маа - л ;;- :-: т- отвечающей тпебо:а; пп::-а-: 12h to 3 n prsutsggs: hydrogen succeeded noj iy: acid with r; ar; maa - l ;; -: -: t- with the corresponding tepebo: a; nn :: - a-: 1

П р и м а п 5. К a-rj кислоты с со;ча;г,:. - PRI m and p 5. To a-rj acid with co; cha; g,:. -

есса предлагаемымEssa proposed

сг изить расход аза с О,66 до ч1.г 1-1аемой кислоты.Determine the flow rate aza from 0, 66 to ch1. 1-1 acid.

бb

Р е -Т е н и  R e-T e n i

о C-4;-iCTKi-: уКСуСНОИ КИСЛОс  -оиг енернровагги  ее в е- агтетатор цел/аолозы и мгкдригга путем обработки 1Г Дорода паи повышенной . с т л и ч а ю Д и и - го, с целью снижени  рас- -1да водорода-, процесс осу е; чиме кипени  в присут- fni гголиЛосфорной кислотыabout C-4; -iCTKi-: UNIFICATION ACIDS-the energy source of it into the agitator of the whole / aoloza and mcdrigga by treating 1G Dorida units increased. with tl and chu D and i - go, in order to reduce the expansion of hydrogen, the process of e; the boiling point in the presence of gniol of phosphoric acid

:;ри массовом соотношении ;1: : оа.а : полифосфорна  ьном 1 i О,023-0522„ с пг п, 1 , отличаю- , что процесс ведут в:; At a mass ratio; 1:: oa.a: polyphosphorus ny 1 i О, 023-0522 "with пг п, 1, it is distinguished that the process is carried out in

г;ооавки укс сного ангидd; oax oks

Claims (1)

<claim-text><table border="1"> <tbody><tr><td> Спо-</td><td> Количе-</td><td> ί ]Используемая добавка</td><td> Количе-</td><td> Время</td><td> Массовое</td><td colspan="2"> Содержание в</td></tr> <tr><td> соб</td><td> ство</td><td> !</td><td> СТВО</td><td> кои-</td><td> соотно-</td><td colspan="2"> обработанном</td></tr> <tr><td> по</td><td> 30%-ного</td><td> !</td><td> добав-</td><td> такта,</td><td> шение</td><td colspan="2"> продукте,</td></tr> <tr><td> при-</td><td> перокси-</td><td> ! 1</td><td> ки, г</td><td> ч</td><td rowspan="2"> пероксид: добавка</td><td> г-экв</td><td> /л</td></tr> <tr><td> мерам</td><td> да, мл</td><td> ί</td><td> </td><td> </td><td> Окисля-</td><td> Перок</td></tr> <tr><td> </td><td> </td><td> </td><td> 1 1</td><td> </td><td> </td><td> емых</td><td> сида</td></tr> <tr><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> приме-</td><td> водо-</td></tr> <tr><td> </td><td> </td><td> </td><td> ί д</td><td> </td><td> ________3</td><td> сей</td><td> рода</td></tr> <tr><td> 1</td><td> 0,44</td><td> </td><td> </td><td> 1 .</td><td> </td><td> 0,013</td><td> 0,022</td></tr> <tr><td> 2</td><td> 0,66</td><td> -</td><td> -</td><td> 1</td><td> -</td><td> 0,011</td><td> 0,031</td></tr> <tr><td> 3</td><td> 0,44</td><td> -</td><td> -</td><td> 2</td><td> —</td><td> 0,009</td><td> 0,008</td></tr> <tr><td> 4</td><td> 0,66</td><td> -</td><td> -</td><td> 2</td><td> -</td><td> 0,007</td><td> 0,01</td></tr> <tr><td> 5</td><td> 0,22</td><td> Триполифосфат натрия</td><td> 0,0075</td><td> 2</td><td> 1:0,11</td><td> 0', 006</td><td> -</td></tr> <tr><td> 6</td><td> 0,22</td><td> Тетраполифосфат натрия</td><td> 0,0075</td><td> 2</td><td> 1:0,11</td><td> 0,005</td><td> -</td></tr> <tr><td> 7</td><td> 0,22</td><td> Трйполифосфорная кис-</td><td> 0,0075</td><td> 2</td><td> 1:0,11</td><td> 0,005</td><td> -</td></tr> <tr><td> </td><td> </td><td> лота</td><td> </td><td> </td><td> </td><td> </td><td> </td></tr> <tr><td> 8</td><td> 0,22'</td><td> То же</td><td> 0,,15</td><td> 2</td><td> 1:0,22</td><td> 0,005</td><td> -</td></tr> <tr><td> 9</td><td> 0,22</td><td> _ 11 „ '</td><td> 0,0015</td><td> 2</td><td> 1:0,023</td><td> 0,008</td><td> -</td></tr> <tr><td> 10</td><td> 0,22</td><td> Тетраполифосфорная</td><td> 0,0075</td><td> 2</td><td> 1:0,11</td><td> 0,005·</td><td> -</td></tr> <tr><td> </td><td> </td><td> кислота</td><td> </td><td> </td><td> </td><td> </td><td> </td></tr> </tbody></table><claim-text> <table border = "1"> <tbody> <tr> <td> Spo - </ td> <td> Quantity - </ td> <td> ί ] Used additive </ td> <td> Quantity - </ td> <td> Time </ td> <td> Bulk </ td> <td colspan = "2"> Content in </ td> </ tr> <tr> <td> comp </ td> <td> </ td> <td> ! </ td> <td> STVO </ td> <td> koi - </ td> <td> is relative - </ td> <td colspan = "2"> processed </ td> </ tr> <tr> <td> by </ td> <td> 30% </ td> <td> ! </ td> <td> add - </ td> <td> tact, </ td> <td> sewing </ td> <td colspan = "2"> product </ td> </ tr> <tr> <td> with - </ td> <td> peroxy - </ td> <td> ! 1 </ td> <td> ki, z </ td> <td> h </ td> <td rowspan = "2"> peroxide: additive </ td> <td> g-eq </ td> <td> / l </ td> </ tr> <tr> <td> measures </ td> <td> yes, ml </ td> <td> ί </ td> <td> </ td> <td> </ td> <td> Oxidized - </ td> <td> Perk </ td> </ tr> <tr> <td> </ td> <td> </ td> <td> </ td> <td> one 1 </ td> <td> </ td> <td> </ td> <td> </ td> <td> sida </ td> </ tr> <tr> <td> </ td> <td> </ td> <td> </ td> <td> </ td> <td> </ td> <td> </ td> <td> applied - </ td> <td> water </ td> </ tr> <tr> <td> </ td> <td> </ td> <td> </ td> <td> ί d </ td> <td> </ td> <td> ________ 3 </ td> <td> this </ td> <td> kind of </ td> </ tr> <tr> <td> 1 </ td> <td> 0.44 </ td> <td> </ td> <td> </ td> <td> 1. </ Td> <td> </ td> <td> 0.013 </ td> <td> 0.022 </ td> </ tr> <tr> <td> 2 </ td> <td> 0.66 </ td> <td> - </ td> <td> - </ td> <td> 1 </ td> <td> - </ td> <td> 0.011 </ td> <td> 0.031 </ td> </ tr> <tr> <td> 3 </ td> <td> 0.44 </ td> <td> - </ td> <td> - </ td> <td> 2 </ td> <td> - </ td> <td> 0.009 </ td> <td> 0.008 </ td> </ tr> <tr> <td> 4 </ td> <td> 0.66 </ td> <td> - </ td> <td> - </ td> <td> 2 </ td> <td> - </ td> <td> 0.007 </ td> <td> 0.01 </ td> </ tr> <tr> <td> 5 </ td> <td> 0.22 </ td> <td> Sodium Tripolyphosphate </ td> <td> 0.0075 </ td> <td> 2 </ td> <td> 1: 0.11 </ td> <td> 0 ', 006 </ td> <td> - </ td> </ tr> <tr> <td> 6 </ td> <td> 0.22 </ td> <td> Sodium tetrapolyphosphate </ td> <td> 0.0075 </ td> <td> 2 </ td> <td> 1: 0.11 </ td> <td> 0.005 </ td> <td> - </ td> </ tr> <tr> <td> 7 </ td> <td> 0.22 </ td> <td> Tripolyphosphate kis - </ td> <td> 0.0075 </ td> <td> 2 </ td> <td> 1: 0.11 </ td> <td> 0.005 </ td> <td> - </ td> </ tr> <tr> <td> </ td> <td> </ td> <td> lot </ td> <td> </ td> <td> </ td> <td> </ td> <td> </ td> <td> </ td> </ tr> <tr> <td> 8 </ td> <td> 0.22 '</ td> <td> Same </ td> <td> 0,, 15 </ td> <td> 2 </ td> <td> 1: 0.22 </ td> <td> 0.005 </ td> <td> - </ td> </ tr> <tr> <td> 9 </ td> <td> 0.22 </ td> <td> _ 11 „'</ td> <td> 0.0015 </ td> <td> 2 </ td> <td> 1: 0.023 </ td> <td> 0.008 </ td> <td> - </ td> </ tr> <tr> <td> 10 </ td> <td> 0.22 </ td> <td> Tetrapolyphosphoric </ td> <td> 0.0075 </ td> <td> 2 </ td> <td> 1: 0.11 </ td> <td> 0.005 · </ td> <td> - </ td> </ tr> <tr> <td> </ td> <td> </ td> <td> acid </ td> <td> </ td> <td> </ td> <td> </ td> <td> </ td> <td> </ td> </ tr> </ tbody> </ table>
SU864157274A 1986-10-09 1986-10-09 Method of purifying acetic acid in its regeneration in production of cellulose acetates and acetic anhydride SU1437363A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5387713A (en) * 1991-01-05 1995-02-07 Bp Chemicals Limited Process for purification of carboxylic acids

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Патент DE № 959456, кл. 12 о 12. опубл, 1957. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5387713A (en) * 1991-01-05 1995-02-07 Bp Chemicals Limited Process for purification of carboxylic acids

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