SU512A1 - The method of obtaining solid products of formaldehyde compaction with phonons and other substances - Google Patents

Description

Patent L 511 describes a method for producing solid compaction products from a mixture of phenol and formic aldehyde with coal or wood, acid-oil waste, turpentine, rosin, fats and fatty acids, and the process of compaction of all these materials is carried out in the presence of substances possessing large emulsifying and dissolving properties, namely sulfo aromatic acids, sulphurized fats and oils or sulphonic acids, which are formed during sulphonation of oil, its distillates and other carbohydrates Prenatal oils. The inventor has established that in the presence of phenol and formaldehyde, solid products are formed not only with the materials mentioned in the aforementioned main patent, but also with proteinaceous (albumin, casein, gelatin, glue, etc.)

and tannic (tannin, catechu, dyeing extracts, etc.) substances and carbohydrates (starch, dextrin, sugar, syrup, etc.), and in these cases, to obtain perfectly homogeneous plastics according to the proposed method, a certain amount is added to the mixture those mentioned in jYs 511, sulphonated products. If they are usually replaced with commonly used phenol-formaldehyde with mineral acids, for example, sulfuric or hydrochloric, the reaction either does not go at all or proceeds very violently and unevenly, and heterogeneous, more fragile and less technologically advanced materials form.

Example 1. A mixture of 100 grams of sales carbolic acid, 50 g-op 37 -;:. Poir, e) iTHorQ aqueous solution of nephTtitis. Ix sulfonic acids, 20 grams of egg

... ji.iiyMiUi; and 50 kggr. . i - ii in the bath. olat ol ..;. v-i-niHa. but 75 is SO. Nag; spLi)::; and l;:; ets until the albumin dissolves and water (50 g.) added to it evaporates from CNtecu lie. After cooling, 40 grams of commercial formalin is added to the mixture. The reaction occurs at 60 - 80 and is accompanied by a rather vigorous boiling. When it calms down, the mass is heated until about 50 grams more evaporate from it. water, then it is cooled to 25-30 and another 50 g is added to it with stirring. formalin. This produces a completely homogeneous, rather thick liquid, which is poured into tubes or special forms and left alone at an ordinary temperature of 10 to 12 hours. During this time, the product becomes more viscous, almost rigid; the forms are immersed for about 2 hours in water heated to 75, then for 1 to 2 hours to 85--90 and for the same time in boiling water. It turns out about 205 grams. very hard, resilient, non-melting, opaque, bluish-yellow colored product. Its formation is accompanied by the addition of a significant amount of water. Similar material is obtained if E of this example instead of egg albumin H is taken, for example, shelter 110 (1 albumin, uselatin, casein, table glue II and other proteinaceous substances.

Example 2. 100 gr. carbolic; acid, 50 gr. Formalin (40% -0 and 50 grams of a solution (37-percent) of petroleum sulfonic acids are mixed and 30 grams of potato I m / are added to the mixture; -. | giepnchny; paxN a.ia. (mOj; li.;,;; ;; K s to -45, n :::::.; | c; i) ctiKii ,, which is sonically generated by global and vertical; 1 starch is strong, i swells and forms a thick stude .. nssgai mass, which after boil-up stl1 (l; gs boecha than liquid; starch.h with: -lch1M and nida of mucous sediment is released; .net and sits on the bottom of the vessel. At 1 iirppMgiiniiuiHiiii on it forms a homogeneous layer with the mass that is subjected to S-aii heating of the pores.

I don't know yet. Its weight doesn’t evaporate its weight to 55-60 grams. After cooling down I to 20-25, 40 grams of formalin is introduced into it, with which a perfectly homogeneous, fairly thick resinous mass is formed during mixing, which is poured into molds, vyderm {nnuv in nnh at a temperature of 10-12 hours and then subjected to heating as described in example 1m. It turns out 200-215 grams. solid, painted in pink color, non-meltable and elastic material.

Example 3. 100 grams of sales carbolic acid, 30 grams of potato syrup, 20 grams. fatty aromatic sulfonic acids in the form of so-called. reagent Twitchel and 45 gr. Formalin is mixed and heated to 50-70 ° C. After the resin is boiled, the mass is heated until 45-50 grams are evaporated from it. water. Upon cooling, another 45 grams are added to it. Formalin is poured into appropriate vessels, which are left to rest for 10-12 hours and then heated as indicated in the description of Example No. 1. About 190 grams is obtained. a gray colored, opaque solid.

Example 4. A mixture of 100 grams of commercial carbolic acid, 50 grams of a 40 percent solution of petroleum sulfonic acids, 60 grams of a 50 percent aqueous solution of crystalline tannin, and 40 grams. of a commercial 40 percent formalin, it is heated to 60 - 80 °, while the mixture boils as a result of self-heating. When the boiling subsides, the mass is well mixed and continues to be heated until the weight of the materials taken for the reaction due to evaporation is reduced by 1 H1 to 70 - 75 g. By cooling to 20-25 ° C. 50 g are injected into it. formalin, and it looks like a completely homogeneous, oily liquid, which is drained, for example, into glass tubes and left alone for 10-12 hours. Then they are heated, consistently increase the temperature, as described in example 1-m. The contents of the tubes are thus transformed into creative, not