SU158284A1 - - Google Patents
Info
- Publication number
- SU158284A1 SU158284A1 SU732334A SU732334A SU158284A1 SU 158284 A1 SU158284 A1 SU 158284A1 SU 732334 A SU732334 A SU 732334A SU 732334 A SU732334 A SU 732334A SU 158284 A1 SU158284 A1 SU 158284A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- yield
- phenols
- lignin
- dry
- plant
- Prior art date
Links
- 239000000463 material Substances 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Natural products OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 229920005610 lignin Polymers 0.000 description 3
- 150000002989 phenols Chemical class 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 230000003301 hydrolyzing Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- CWGBFIRHYJNILV-UHFFFAOYSA-N (1,4-diphenyl-1,2,4-triazol-4-ium-3-yl)-phenylazanide Chemical compound C=1C=CC=CC=1[N-]C1=NN(C=2C=CC=CC=2)C=[N+]1C1=CC=CC=C1 CWGBFIRHYJNILV-UHFFFAOYSA-N 0.000 description 1
- 241000209149 Zea Species 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 235000005824 corn Nutrition 0.000 description 1
- 150000001896 cresols Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Description
Известен способ nOvTy4e m фенолов и других химических продуктов термическим разложением растительных материалов.The known method nOvTy4e m phenols and other chemical products by thermal decomposition of plant materials.
Предложен способ термической переработки растительных материалов и гидролизного лигнииа, по которому ИСХОДНЫ материал обрабатывают 3-10%-ными раство рами шедочей с модулем пропитки не выше трех и подвергают сухой перегонке при температуре около 500° С. При этом выход легких фепольных фракций увеличиваетс в несколько раз по сравиению с выходом этих фракций, получаемых по существующим методам.A method of thermal processing of plant materials and hydrolytic lignia was proposed, according to which the source material is treated with 3-10% shedding solutions with an impregnation module not exceeding three and subjected to dry distillation at a temperature of about 500 ° C. The yield of light fepol fractions increases by several times by comparison with the release of these fractions obtained by existing methods.
Пример. Измельченный растительный материал, например подсолиечна лузга, кукурузна кочерыжка, древесные опилки, гидролизиьп лигнин или другие, пропитывают слабым раствором щелочи (3- 10%-ный раствор ХаОИ или NaoCO,-,) с модулем пропитки от 1 до 3. O6pa6oTannb ii материал загрлжают в реторту, образовавгниес продукты щелочного гидролиза отгон ют прн 460-480° С. Получающийс водный конденсат имеет нейтральную реакцию. Продукты термическото разложени лигнина легко выдс.т ют in конденсата экстрагированием бензолом или беизино. Выход фенолов (преобладают легкокип щие крезольные фракции и гва кол) достигает 10-20--/о в пересчете на сухой лигиии.Example. Chopped plant material, such as salted pod, corn stalk, sawdust, hydrolyzed lignin or others, is impregnated with a weak alkali solution (3-10% solution of XaOI or NaoCO, -,) with an impregnation module from 1 to 3. O6pa6oTannb ii material is loaded In the retort, the alkaline hydrolysis products are formed and the distillate is distilled at 460-480 ° C. The resulting aqueous condensate is neutral. The products of thermal decomposition of lignin are easily squeezed out in the condensate by extraction with benzene or beisino. The yield of phenols (light boiling cresol fractions and gua-col are predominant) reaches 10–20 - / o in terms of dry ligium.
№ 158284- 2 № 158284- 2
Способ получени фенолов из растительного сырь и гидролизного лигнина щелочным гидролизом, отличающийс тем, что, с целью повышени выхода, исходный материал обрабатывают слабыми растворами щелочей с модулем нронитки не выще трех, с последующей сухой ncperotiKofr при температуре около 500° С.The method of obtaining phenols from plant raw materials and hydrolytic lignin by alkaline hydrolysis, characterized in that, in order to increase the yield, the starting material is treated with weak alkali solutions with a modulus of nitron, no more than three, followed by dry ncperotiKofr at a temperature of about 500 ° C.
Предмет изобретени Subject invention
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU158284A1 true SU158284A1 (en) |
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