SU48305A1 - The method of obtaining resinous condensation products - Google Patents
The method of obtaining resinous condensation productsInfo
- Publication number
- SU48305A1 SU48305A1 SU178859A SU178859A SU48305A1 SU 48305 A1 SU48305 A1 SU 48305A1 SU 178859 A SU178859 A SU 178859A SU 178859 A SU178859 A SU 178859A SU 48305 A1 SU48305 A1 SU 48305A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- condensation products
- resinous condensation
- mixture
- obtaining
- formaldehyde
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 4
- 239000007859 condensation product Substances 0.000 title description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 22
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 239000000203 mixture Substances 0.000 description 7
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 241000779819 Syncarpia glomulifera Species 0.000 description 4
- 239000001739 pinus spp. Substances 0.000 description 4
- 229940036248 turpentine Drugs 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- 235000011116 calcium hydroxide Nutrition 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001662103 Cryptocarya corrugata Species 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 239000011276 wood tar Substances 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
Способ Е П. Орлова (герм. пат. № 191011) получени смол дл лаков путем конденсации скипидара с формальдегидом в присутствии большого избытка серной кислоты не нашел себе практического применени из-за плохого качества образующихс смол: они весьма хрупки, темно окрашены и нестойки к воде. Последнее самое непри тное обсто тельство с точки зрени лаковой индустрии объ сн етс присутствием в смолах большого количества солей сульфоорганических кислот. С точки же зрени литейного дела, наоборот, присутствие солей весьма желательно, так как по наблюдени м авторов сульфосоли, а также и самые сульфокислоты легко разлагаютс (коксуютс ) и в момент коксовани св зывают формовочную землю.Method E P. Orlov (Germ. Pat. No. 191011) of obtaining varnishes for varnishes by condensing turpentine with formaldehyde in the presence of a large excess of sulfuric acid has not found practical application due to the poor quality of the resins formed: they are very fragile, darkly colored and unstable water. The last most unpleasant circumstance from the point of view of the varnish industry is explained by the presence in the resins of a large amount of salts of organo-sulfo-organic acids. From the point of view of the foundry business, on the contrary, the presence of salts is highly desirable, since according to the authors' observations, the sulfosal salts, as well as the sulfonic acids themselves, easily decompose (coke) and, at the time of coking, bind the molding earth.
Лвторы нашли, что продукты, хорошо св зывающие земли, получаютс в результате конденсации с формальдегидом не только скипидара, но и масл ных различных древесных дегтей.Experts have found that products that bind the earth well are obtained by condensation with formaldehyde not only of turpentine, but also of oil various wood tar.
При этом, в противоположность патенту Е. П. Орлова, формальдегида можно брать в реакцию значительно меньше и методику конденсации упростить . Отпадает необходимость применени дл нейтрализации аммиака и нагревани смол (дл разложени сульфосолей ) до высокой температуры. Конденсаты , нейтрализованные содой или известью, могут получатьс как жидкими,At the same time, in contrast to the patent of EP Orlov, formaldehyde can be taken into the reaction much less and the condensation method can be simplified. There is no need to use ammonia to neutralize and heat the resin (to decompose the sulfosalts) to a high temperature. Condensates neutralized by soda or lime can be obtained as liquid,
(121)(121)
так и полужидкими и твердыми в зависимости от вида вз того в реакцию продукта и количества формальдегида.both semi-liquid and solid, depending on the type of product taken into account and the amount of formaldehyde.
Жидкие конденсаты более удобны при изготовлении форм и стержней, так как твердые требуют предварительного растворени .Liquid condensates are more convenient in the manufacture of molds and cores, since solid require prior dissolution.
Пример 1. 500 г скипидара смешивают с 250 г 35%-го формалина. К смеси осторожно небольшими порци ми при энергичном помешивании приливают 250 2 серной кислоты (66° Вё). После того, как вс кислота прилита и смесь начала отстывать, ее оставл ют на 12 часов в покое. Потом одну половину смеси нейтрализуют содой, другую - гашеной известью.Example 1. 500 g of turpentine is mixed with 250 g of 35% formalin. With vigorous stirring, 250 2 of sulfuric acid (66 ° Be) are poured into the mixture in small portions with vigorous stirring. After all the acid had been added and the mixture began to loosen, it was left for 12 hours alone. Then one half of the mixture is neutralized with soda, the other with slaked lime.
Пример 2. 400 t дестиллата еловой смолы с температурой кипени 100- 200° смешивают с 40 г формальдегида. К смеси осторожно приливают 50 г серной кислоты (66° Вё). После 12 часов сто ни половину смеси оставл ют без нейтрализации, но промывают многократно водой, другую половину нейтрализуют известью.Example 2. 400 t distillate spruce resin with a boiling point of 100-200 ° C is mixed with 40 g of formaldehyde. 50 g of sulfuric acid (66 ° Be) are carefully added to the mixture. After 12 hours, one hundred and one half of the mixture is left without neutralization, but washed repeatedly with water, the other half is neutralized with lime.
Пример 3. 650 I трони с температурой кипени 250-350 смешивают с 300 г формалина, к смеси при размешивании небольшими порци ми приливают 300 г серной кислоты (66° Вё). Через 12 часов смесь нагревают /2 часа при 120° и нейтрализуют гашеной известью.Example 3. 650 I, with a boiling point of 250-350, is mixed with 300 g of formalin, and 300 g of sulfuric acid (66 ° Ve) is poured into the mixture while stirring in small portions. After 12 hours, the mixture is heated / 2 hours at 120 ° and neutralized with slaked lime.
Предмет изобретени .The subject matter of the invention.
Способ получени смолообразных продуктов конденсации нагреванием скипидара и аналогичных ему дестиллатовThe method of obtaining resinous condensation products by heating turpentine and similar distillates
древесных смол с формальдегидом и серной кислотой с последующей нейтрализацией продукта реакции, отличающийс тем, что дл нейтрализации примен ют соду или гашеную известь.Formaldehyde and sulfuric acid wood resins, followed by neutralization of the reaction product, characterized in that soda or slaked lime is used for neutralization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU178859A SU48305A1 (en) | 1935-10-23 | 1935-10-23 | The method of obtaining resinous condensation products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU178859A SU48305A1 (en) | 1935-10-23 | 1935-10-23 | The method of obtaining resinous condensation products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU48305A1 true SU48305A1 (en) | 1936-08-31 |
Family
ID=48361272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU178859A SU48305A1 (en) | 1935-10-23 | 1935-10-23 | The method of obtaining resinous condensation products |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU48305A1 (en) |
-
1935
- 1935-10-23 SU SU178859A patent/SU48305A1/en active
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