SU91573A1 - The method of obtaining vanillin from lignin obsessive substances - Google Patents

The method of obtaining vanillin from lignin obsessive substances

Info

Publication number
SU91573A1
SU91573A1 SU415923A SU415923A SU91573A1 SU 91573 A1 SU91573 A1 SU 91573A1 SU 415923 A SU415923 A SU 415923A SU 415923 A SU415923 A SU 415923A SU 91573 A1 SU91573 A1 SU 91573A1
Authority
SU
USSR - Soviet Union
Prior art keywords
lignin
substances
vanillin
obsessive
obtaining vanillin
Prior art date
Application number
SU415923A
Other languages
Russian (ru)
Inventor
Н.И. Волынкин
Original Assignee
Н.И. Волынкин
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 Н.И. Волынкин filed Critical Н.И. Волынкин
Priority to SU415923A priority Critical patent/SU91573A1/en
Application granted granted Critical
Publication of SU91573A1 publication Critical patent/SU91573A1/en

Links

Landscapes

  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Description

Дл  ио.чучеии  ванилина из лигнинсодср/кащих веществ обычно в качестЕ5е окислителей примен ютс  KHc;iojK),4 в п зисутствии цветных металлов и ароматические нитросоединени , например, нитробензол с примесью дини робензола и метанитробспзол су.чьфокислый натрий.For vanilla from lignin sods / solids, KHc (iojK), 4 in the presence of non-ferrous metals and aromatic nitro compounds, for example, nitrobenzene with impurity of din robenzene and methanitrobotzol suicine sodium, are usually used as oxidants.

Предлагаемы способ получени  вани,1ина из .тигнинсодержащих веществ посредством обработки последних П1.елочами отличаетс  от известных тем, что в качестве окислител  примен ют так называемым нитролигнин.The proposed method for the production of vanilla, 1 from the tannin-containing substances, is different from the known ones by treating the latter Pylorus from the fact that the so-called nitrolignin is used as the oxidizing agent.

Нитролигнин получают обработкой лигнина азотно кислотой удельного веса 1,3-1,4 при температуре 70°, после чего реакционную смесь разбавл ют водой, а нерастворимый нитролигнин фильтруют и промывают водой.Nitrolignin is obtained by treating the lignin with nitric acid with a specific gravity of 1.3-1.4 at a temperature of 70 °, after which the reaction mixture is diluted with water, and insoluble nitrolignin is filtered and washed with water.

Дл  получени  ванилина лигнинсодержап ие ., вен1,ества подвергают обработке едкой Н1.елочью или едкой известью при нагревании в нрисутствии нитролигнина, как окислител . Затем подкисленный раствор фильтруют дл  очистки его от аминолигнинов и нитролигнинов и экстрагируют взцилин из фил зтрата бензо.том. Полученньп сырой ванилин нерегон ют под вакуумом и ванилиновую фракцию перекристаллнзовывают в гор чей во.че.In order to obtain vanillin lignin containing, veins, the substances are treated with caustic HI with wood or caustic lime when heated in the presence of nitrolignin, as an oxidizing agent. Then the acidified solution is filtered to clean it from aminolignins and nitrolignins and extracted istilin from the filterate with benzo.t. Raw vanillin is not kept under vacuum and the vanillin fraction is recrystallized in hot water.

Пример. 1000 М.1 сульфитпого П1елока, содержащего 60 г лигнина (10 су.хого остатка), обрабатывают 300 г едкой извести при пагрсвамии . Раствор (1)ильт)уют. осадок снова обрабатывают 1100 M.I соды нрн кип чении. После вто 1нчной фильтрации к раствору прибав . 25-50 t нитро.чигнина i нагревают в автоклаве п течение 3 час. при температуре 1-15. После ох/1а кдени  и по.1кис,1ени  экстра1 1р ют вани.пн.Example. 1000 M.1 sulphite P1eloka containing 60 g of lignin (10 s. Xyogo residue), treated with 300 g of caustic lime at pagrsvamiya. Solution (1) ilt coziness. The sludge is again treated with 1,100 M.I soda, boiling boiling. After second filtration, to a solution by adding. 25-50 t nitro.chignin i heated in an autoclave for 3 hours. at a temperature of 1-15. After oh / 1a kdeni and 1 kis, 1 extra 1 1 van van. P.

Описываемы способ 6o.iec прост в осуиичтв.чеипи. чем известные, а г1римен ем1) в нем окислитель вполне доступен и менее токсичен, чем, напри.мер, нитробензо.к Получаемый ванилин имеет игольчатокристаллическое строение, чистый запах; темие|1ату)а плав. 81-82. Выход ванил11 а в лр.бораторных услови х составл ет на ок)с.1 емы| ванилин.The 6o.iec method described is simple in terms of chipset. than what is known, and em1), the oxidizer in it is quite accessible and less toxic than, for example, nitrobenzo.c. The resulting vanillin has a needle-crystalline structure, a pure smell; temee | 1atu) and melt. 81-82. The output of vanilla 11 in lateral conditions is ca. vanillin.

Предмет изобретени Subject invention

Способ нолучени  ванилина из лигнинсодержащих посредством обработки пос.чедних HieЯо 91573- 2 лочами , отличающийс  тем, ют продукт обработки лигнина -что -В качестве окислител  примени- .азотной кислотой-нитролигнин.The method of obtaining vanillin from lignin-containing by treating the lower HieHono 91573-2 locks, characterized in that, the product of the lignin treatment is that -nitrolignin is used as an oxidizing agent.

SU415923A 1950-04-07 1950-04-07 The method of obtaining vanillin from lignin obsessive substances SU91573A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU415923A SU91573A1 (en) 1950-04-07 1950-04-07 The method of obtaining vanillin from lignin obsessive substances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU415923A SU91573A1 (en) 1950-04-07 1950-04-07 The method of obtaining vanillin from lignin obsessive substances

Publications (1)

Publication Number Publication Date
SU91573A1 true SU91573A1 (en) 1950-11-30

Family

ID=48367507

Family Applications (1)

Application Number Title Priority Date Filing Date
SU415923A SU91573A1 (en) 1950-04-07 1950-04-07 The method of obtaining vanillin from lignin obsessive substances

Country Status (1)

Country Link
SU (1) SU91573A1 (en)

Similar Documents

Publication Publication Date Title
SU91573A1 (en) The method of obtaining vanillin from lignin obsessive substances
Brauns The nature of lignin from Western hemlock (Tsuga heterophylla)
US2187366A (en) Manufacture of vanillin
US1472320A (en) Process for preparing a fodder from straw or other materials characterized by their contents of raw fiber
US2418981A (en) Method of producing tanning materials from waste sulfite liquor
DE971013C (en) Process for the preparation of pure p, p'-dioxydiphenyldimethylmethane
GB280969A (en) Improved process for the purification of lactic acid
DE360691C (en) Process for the production of phthaleins
US1629556A (en) Process of obtaining glue and gelatin
US2035366A (en) Process of recovering strontium
DE517539C (en) Process for the preparation of aromatic oxyaldehydes
US1938390A (en) Tanning process
DE403705C (en) Process for the saccharification of cellulose
US2483559A (en) Process of preparing vanillic acid
US2431419A (en) Recovery of vanillic acid
US2783278A (en) Purification of omicion-nitrodiphenylamine
US1303177A (en) Process of producing ligno tanning material from waste sulfite liquors
US1375759A (en) Manufacture of sulfate pulp
SU48312A1 (en) Anabasin production method
US1298481A (en) Process for the treatment of waste soda liquors.
DE722261C (en) Process for the production of conversion products from peat and lignite
SU608829A1 (en) Method of extracting cotton wax
DE322461C (en) Process for cleaning alkaline waste liquors contaminated and colored by organic additions
US1259486A (en) Process of recovering potassium salts.
SU492574A1 (en) Method for processing xanthate cobalt cakes