SU110937A1 - The method of alkaline melting of benzene metadisulfonic acid in the production of resorcinol - Google Patents

The method of alkaline melting of benzene metadisulfonic acid in the production of resorcinol

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Publication number
SU110937A1
SU110937A1 SU570582A SU570582A SU110937A1 SU 110937 A1 SU110937 A1 SU 110937A1 SU 570582 A SU570582 A SU 570582A SU 570582 A SU570582 A SU 570582A SU 110937 A1 SU110937 A1 SU 110937A1
Authority
SU
USSR - Soviet Union
Prior art keywords
benzene
resorcinol
acid
production
metadisulfonic
Prior art date
Application number
SU570582A
Other languages
Russian (ru)
Inventor
К.К. Петухова
Т.Д. Шишкина
Original Assignee
К.К. Петухова
Т.Д. Шишкина
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 К.К. Петухова, Т.Д. Шишкина filed Critical К.К. Петухова
Priority to SU570582A priority Critical patent/SU110937A1/en
Application granted granted Critical
Publication of SU110937A1 publication Critical patent/SU110937A1/en

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Description

Известные способы проведени  щелочного плавлени  дипатриевоп соли метадисульфокислоты бензола дают недостаточно высокие выходь( резорцина в плаве (до 76%) или обильное вспепиванне, не позвол ющее практически реакцию до конца.The known methods for carrying out alkaline melting of the dipatriev salt of benzene methadisulfonic acid give an insufficiently high yield (resorcinol in water (up to 76%) or abundant consumption, which does not allow practically the reaction to the end).

Описываемый снособ П1,елочного плавлени  устран ет обильное вспенивание плава, сокращает продолжительность процесса и увеличивает выход резорцина. Способ отличаетс  одновременной загрузкой едкогО иатра и водного раствора динатриевой соли метадисульфокислоты бензола с добавкой контакта Петрова в количестве до 1 % от веса сульфосоли и последующим растворением плава в воде, содержаи1,ей до 1% от веса плава поверхностно-активных 15еп1,еств ОП-7 или ОП-10.The described P1, fir-tree melting method eliminates abundant foaming of the water, shortens the process time and increases the yield of resorcinol. The method is characterized by simultaneous loading of edcdO2 of iatr and an aqueous solution of benzene disodium salt of methadisulfonic acid with the addition of Petrov contact in an amount of up to 1% by weight of sulfosal and followed by dissolution of the melt in water, containing up to 1% of the weight of the melt surfactant or OP-10.

Пример. В котел с мешалкой и термометром внос т 75 г, чеп1уйчатого едкого натра, 100 г 60%-ного водного раствора динатриевой соли нетадисульфокислоты бензола (полученной из 17.6 i бензола) и массу нагревают до 310-330°. При температуре около 180 масса начинает пенитьс  и дл  гашени  пены внос т по капл м 1 мл контакта Петрова. При 220-250- вспенивание прекращаетс . При температуре 310-330 дают выде)жку в продолжение 30 минут п затем готовьи п.шв выливают в 160 мл воды, содержащей 0,8 г ОП-7 или ОП-10. Выделивщийс  сульфит отфильтровывают и промывают водой. Вес плава 128 с; содержание в нем резорцина 15%. Выход резорцина по стадии щелочного плавлени  - 82% от теоретического.Example. 75 g of potassium hydroxide solution, 100 g of a 60% aqueous solution of benzene non-disulfonic acid disodium salt (obtained from 17.6 i benzene) and the mass are heated to 310-330 ° are introduced into the boiler with a stirrer and thermometer. At a temperature of about 180, the mass begins to foam and 1 ml of Petrov contact is added dropwise to quench the foam. At 220-250, foaming ceases. At a temperature of 310-330, the extract is given for 30 minutes for a further 30 minutes and then the prepared p.shv is poured into 160 ml of water containing 0.8 g OP-7 or OP-10. The separated sulphite is filtered off and washed with water. Weight pava 128 s; its resorcinol content is 15%. The output of resorcinol at the stage of alkaline melting is 82% of the theoretical.

П р е д .1 е т изобретени Prev. 1 et of invention

Способ Н1елочного п,лав. еи11Я .могадисульфокислоты бензола в производстве резорцина, о т л п ч а ю щ п йс   тем, что. с целью снижени  расхода сырь , п,1,елочное п.чавление ведут путем одновременной загрузки едкого натра и водного раствора дипатриовой соли метадисульфокислоты бензола с добавкой контакта Петро№ 110937 ва в количестве до 1 % от веса раствора су..ти с последующи растворением п.тава в воде, содержашеи до J % от веса плава поверхностмо-актмвных вещест ОП-7 и ОП-10.The method of molten p, lav. eu.I.mogadisulphonic acid of benzene in the production of resorcinol, about that l. In order to reduce the consumption of raw materials, p, 1, fir-tree boiling is carried out by simultaneous loading of caustic soda and an aqueous solution of benzene dipatriate methadisulfonic acid with the addition of Petro No. 110937 contact in an amount up to 1% by weight of the solution su., followed by dissolving p .tava in water, containing up to J% of the weight of the melt of surface-active substances OP-7 and OP-10.

SU570582A 1957-02-20 1957-02-20 The method of alkaline melting of benzene metadisulfonic acid in the production of resorcinol SU110937A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU570582A SU110937A1 (en) 1957-02-20 1957-02-20 The method of alkaline melting of benzene metadisulfonic acid in the production of resorcinol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU570582A SU110937A1 (en) 1957-02-20 1957-02-20 The method of alkaline melting of benzene metadisulfonic acid in the production of resorcinol

Publications (1)

Publication Number Publication Date
SU110937A1 true SU110937A1 (en) 1957-11-30

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Family Applications (1)

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SU570582A SU110937A1 (en) 1957-02-20 1957-02-20 The method of alkaline melting of benzene metadisulfonic acid in the production of resorcinol

Country Status (1)

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