3 research outputs found
ΠΠΠ―ΠΠ Π ΠΠΠΠ¦ΠΠ N-{3-[(ΠΠ ΠΠ-1-Π‘Π£ΠΠ€ΠΠΠΠ)ΠΠΠΠΠ]-6-ΠΠΠ‘ΠΠ¦ΠΠΠΠΠΠΠΠ‘Π-1,4-ΠΠΠΠ-1-ΠΠ}ΠΠΠΠΠΠΠΠΠΠ
N-{3-[(Aryl-1-sulfonyl)imino]-6-oxocyclohexa-1,4-dienΠ΅-1-yl}benzamides have been synthesized by the reaction of the corresponding N-(4-oxocyclohexa-2,5-diene-1-ylidene)arylsulfonamides with N-chloramides with a ratio of reagents 1:2 in a solution of propan-2-one in the presence of triethylamine. The products of addition of hydrogen halides with the entry of halogen atoms in position 4 or 5 of the quinoid ring have been obtained as a result of hydrochlorination and hydrobromination of N-{3-[(aryl-1-sulfonyl)imino]-6-oxocyclohexa-1,4-diene-1-yl}benzamides. The possibility of hydrohalogenation and thiocyanation of these benzamides is determined by a steric factor. The presence of bulk substituents in the quinoid ring does not allow the introduction of a halogen atom in the 2 position of the quinoid ring. The product of aromatization of the quinoid cycle, N-{2-hydroxy-3,4-dimethyl-5-[(4-methylbenzene-1-sulfonyl)amino]phenyl}-4-methylbenzamide, was only obtained as a result of the action of hydrogen halides on 4-methyl-N-{4,5-dimethyl-3-[(4-methylbenzene-1-sulfonyl)imino]-6-oxocyclohexa-1,4-dienΠ΅-1-yl}benzamide. The thiocyanate ion addition product was obtained only for 4-chloro-N-{4-methyl-3-[(4-methylbenzene-1-sulfonyl)imino]-6-oxocyclohexa-1,4-dienΠ΅-1-yl}benzamide, which has a freeΒ ortho-position relative to the carbonyl carbon of the quinoid ring. The activitiesΒ Insulysin inhibitor, CTGF expression inhibitor, Glutamyl endopeptidase II inhibitor, Transcription factor STAT3 inhibitorΒ are possible for the products of hydrohalogenation and thiocyanation of N-{3-[(aryl-1-sulfonyl)imino]-6-oxocyclohexa-1,4-dienΠ΅-1-yl}benzamides.N-{3-[(ΠΡΠΈΠ»-1-ΡΡΠ»ΡΡΠΎΠ½ΠΈΠ»)ΠΈΠΌΠΈΠ½ΠΎ]-6-ΠΎΠΊΡΠΎΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°-1,4-Π΄ΠΈΠ΅Π½-1-ΠΈΠ»}Π±Π΅Π½Π·Π°ΠΌΠΈΠ΄Ρ ΡΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½Ρ ΠΏΠΎ ΡΠ΅Π°ΠΊΡΠΈΠΈ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠΈΡ
N-(4-ΠΎΠΊΡΠΎΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°-2,5-Π΄ΠΈΠ΅Π½-1-ΠΈΠ»ΠΈΠ΄Π΅Π½)Π°ΡΠΈΠ»ΡΡΠ»ΡΡΠΎΠ½Π°ΠΌΠΈΠ΄ΠΎΠ² Ρ N-Ρ
Π»ΠΎΡΠ°ΠΌΠΈΠ΄Π°ΠΌΠΈ Ρ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠ΅Π°Π³Π΅Π½ΡΠΎΠ² 1:2 Π² ΡΠ°ΡΡΠ²ΠΎΡΠ΅ ΠΏΡΠΎΠΏΠ°Π½-2-ΠΎΠ½Π° Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ ΡΡΠΈΡΡΠΈΠ»Π°ΠΌΠΈΠ½Π°. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ Π³ΠΈΠ΄ΡΠΎΡ
Π»ΠΎΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ Π³ΠΈΠ΄ΡΠΎΠ±ΡΠΎΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ N-{3-[(Π°ΡΠΈΠ»-1-ΡΡΠ»ΡΠΎΠ½ΠΈΠ»)ΠΈΠΌΠΈΠ½ΠΎ]-6-ΠΎΠΊΡΠΎΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°-1,4-Π΄ΠΈΠ΅Π½-1-ΠΈΠ»}Π±Π΅Π½Π·Π°ΠΌΠΈΠ΄ΠΎΠ² ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ ΠΏΡΠΎΠ΄ΡΠΊΡΡ ΠΏΡΠΈΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ Π³Π°Π»ΠΎΠ³Π΅Π½ΠΎΠ²ΠΎΠ΄ΠΎΡΠΎΠ΄ΠΎΠ² Ρ Π²Ρ
ΠΎΠΆΠ΄Π΅Π½ΠΈΠ΅ΠΌ Π°ΡΠΎΠΌΠΎΠ² Π³Π°Π»ΠΎΠ³Π΅Π½Π° Π² ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ 4 ΠΈΠ»ΠΈ 5 Ρ
ΠΈΠ½ΠΎΠΈΠ΄Π½ΠΎΠ³ΠΎ ΡΠ΄ΡΠ°. ΠΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ Π³ΠΈΠ΄ΡΠΎΠ³Π°Π»ΠΎΠ³Π΅Π½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ ΡΠΎΠ΄Π°Π½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π΄Π°Π½Π½ΡΡ
Π±Π΅Π½Π·Π°ΠΌΠΈΠ΄ΠΎΠ² ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ΅ΡΡΡ ΡΡΠ΅ΡΠΈΡΠ΅ΡΠΊΠΈΠΌ ΡΠ°ΠΊΡΠΎΡΠΎΠΌ. ΠΠ°Π»ΠΈΡΠΈΠ΅ ΠΎΠ±ΡΠ΅ΠΌΠ½ΡΡ
Π·Π°ΠΌΠ΅ΡΡΠΈΡΠ΅Π»Π΅ΠΉ Π² Ρ
ΠΈΠ½ΠΎΠΈΠ΄Π½ΠΎΠΌ ΡΠ΄ΡΠ΅ Π½Π΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ Π²Π²Π΅ΡΡΠΈ Π°ΡΠΎΠΌ Π³Π°Π»ΠΎΠ³Π΅Π½Π° Π²ΠΎ 2 ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ Ρ
ΠΈΠ½ΠΎΠΈΠ΄Π½ΠΎΠ³ΠΎ ΡΠ΄ΡΠ° β Π² ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π³Π°Π»ΠΎΠ³Π΅Π½ΠΎΠ²ΠΎΠ΄ΠΎΡΠΎΠ΄ΠΎΠ² Π½Π° 4-ΠΌΠ΅ΡΠΈΠ»-N-{4,5-Π΄ΠΈΠΌΠ΅ΡΠΈΠ»-3-[(4-ΠΌΠ΅ΡΠΈΠ»Π±Π΅Π½Π·Π΅Π½-1-ΡΡΠ»ΡΡΠΎΠ½ΠΈΠ»)ΠΈΠΌΠΈΠ½ΠΎ]-6-ΠΎΠΊΡΠΎΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°-1,4-Π΄ΠΈΠ΅Π½-1-ΠΈΠ»}Π±Π΅Π½Π·Π°-ΠΌΠΈΠ΄ ΠΏΠΎΠ»ΡΡΠ΅Π½ ΡΠΎΠ»ΡΠΊΠΎ ΠΏΡΠΎΠ΄ΡΠΊΡ Π°ΡΠΎΠΌΠ°ΡΠΈΠ·Π°ΡΠΈΠΈ Ρ
ΠΈΠ½ΠΎΠΈΠ΄Π½ΠΎΠ³ΠΎ ΡΠΈΠΊΠ»Π° β N-{2-Π³ΠΈΠ΄ΡΠΎΠΊΡΠΈ-3,4-Π΄ΠΈΠΌΠ΅ΡΠΈΠ»-5-[(4-ΠΌΠ΅ΡΠΈΠ»Π±Π΅Π½Π·Π΅Π½-1-ΡΡΠ»ΡΡΠΎΠ½ΠΈΠ»)Π°ΠΌΠΈΠ½ΠΎ]ΡΠ΅Π½ΠΈΠ»}-4-ΠΌΠ΅ΡΠΈΠ»Π±Π΅Π½Π·Π°ΠΌΠΈΠ΄. ΠΡΠΎΠ΄ΡΠΊΡ ΠΏΡΠΈΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ ΡΠΈΠΎΡΠΈΠ°Π½Π°Ρ-ΠΈΠΎΠ½Π° ΠΏΠΎΠ»ΡΡΠ΅Π½ ΡΠΎΠ»ΡΠΊΠΎ Π΄Π»Ρ 4-Ρ
Π»ΠΎΡ-N-{4-ΠΌΠ΅ΡΠΈΠ»-3-[(4-ΠΌΠ΅ΡΠΈΠ»Π±Π΅Π½Π·Π΅Π½-1-ΡΡΠ»ΡΡΠΎΠ½ΠΈΠ»)ΠΈΠΌΠΈΠ½ΠΎ]-6-ΠΎΠΊΡΠΎΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°-1,4-Π΄ΠΈΠ΅Π½-1-ΠΈΠ»}Π±Π΅Π½Π·Π°ΠΌΠΈΠ΄Π°, ΠΊΠΎΡΠΎΡΡΠΉ ΠΈΠΌΠ΅Π΅Ρ ΡΠ²ΠΎΠ±ΠΎΠ΄Π½ΠΎΠ΅ ΠΎΡΡΠΎ-ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ ΠΏΠΎ ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡ ΠΊ ΠΊΠ°ΡΠ±ΠΎΠ½ΠΈΠ»ΡΠ½ΠΎΠΌΡ Π°ΡΠΎΠΌΡ ΡΠ³Π»Π΅ΡΠΎΠ΄Π° Ρ
ΠΈΠ½ΠΎΠΈΠ΄Π½ΠΎΠ³ΠΎ ΡΠ΄ΡΠ°. ΠΠ»Ρ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² Π³ΠΈΠ΄ΡΠΎΠ³Π°Π»ΠΎΠ³Π΅Π½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ ΡΠΎΠ΄Π°Π½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ N-{3-[(Π°ΡΠΈΠ»ΡΡΠ»ΡΠΎΠ½ΠΈΠ»)ΠΈΠΌΠΈΠ½ΠΎ]-6-ΠΎΠΊΡΠΎΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°-1,4-Π΄ΠΈΠ΅Π½-1-ΠΈΠ»}Π±Π΅Π½Π·Π°ΠΌΠΈΠ΄ΠΎΠ² Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎ ΠΏΡΠΎΡΠ²Π»Π΅Π½ΠΈΠ΅ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠ΅ΠΉ Insulysin inhibitor, CTGF expression inhibitor, Glutamyl endopeptidase II inhibitor, Transcription factor STAT3 inhibitor.N-{3-[(ΠΡΠΈΠ»-1-ΡΡΠ»ΡΡΠΎΠ½ΡΠ»)ΡΠΌΡΠ½ΠΎ]-6-ΠΎΠΊΡΠΎΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°-1,4-Π΄ΡΡΠ½-1-ΡΠ»}Π±Π΅Π½Π·Π°ΠΌΡΠ΄ΠΈ ΡΠΈΠ½ΡΠ΅Π·ΠΎΠ²Π°Π½ΠΎ Π·Π° ΡΠ΅Π°ΠΊΡΡΡΡ Π²ΡΠ΄ΠΏΠΎΠ²ΡΠ΄Π½ΠΈΡ
N-(4-ΠΎΠΊΡΠΎΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°-2,5-Π΄ΡΡΠ½-1-ΡΠ»ΡΠ΄Π΅Π½)Π°ΡΠΈΠ»ΡΡΠ»ΡΡΠΎΠ½Π°ΠΌΡΠ΄ΡΠ² Π· N-Ρ
Π»ΠΎΡΠ°ΠΌΡΠ΄Π°ΠΌΠΈ Π·Ρ ΡΠΏΡΠ²Π²ΡΠ΄Π½ΠΎΡΠ΅Π½Π½ΡΠΌ ΡΠ΅Π°Π³Π΅Π½ΡΡΠ² 1:2 Ρ ΡΠΎΠ·ΡΠΈΠ½Ρ ΠΏΡΠΎΠΏΠ°Π½-2-ΠΎΠ½Ρ Π·Π° ΠΏΡΠΈΡΡΡΠ½ΠΎΡΡΡ ΡΡΠΈΠ΅ΡΠΈΠ»Π°ΠΌΡΠ½Ρ. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ Π³ΡΠ΄ΡΠΎΡ
Π»ΠΎΡΡΠ²Π°Π½Π½Ρ Ρ Π³ΡΠ΄ΡΠΎΠ±ΡΠΎΠΌΡΠ²Π°Π½Π½Ρ N-{3-[(Π°ΡΠΈΠ»-1-ΡΡΠ»ΡΠΎΠ½ΡΠ»)ΡΠΌΡΠ½ΠΎ]-6-ΠΎΠΊΡΠΎΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°-1,4-Π΄ΡΡΠ½-1-ΡΠ»}Π±Π΅Π½Π·Π°ΠΌΡΠ΄ΡΠ² ΠΎΡΡΠΈΠΌΠ°Π½ΠΎ ΠΏΡΠΎΠ΄ΡΠΊΡΠΈ 1,4- ΡΠ° 6,3-ΠΏΡΠΈΡΠ΄Π½Π°Π½Π½Ρ Π³Π°Π»ΠΎΠ³Π΅Π½ΠΎΠ²ΠΎΠ΄Π½ΡΠ² Π·Ρ Π²Ρ
ΠΎΠ΄ΠΆΠ΅Π½Π½ΡΠΌ Π°ΡΠΎΠΌΡΠ² Π³Π°Π»ΠΎΠ³Π΅Π½Ρ Ρ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½Π½Ρ 3 Π°Π±ΠΎ 4 Ρ
ΡΠ½ΠΎΡΠ΄Π½ΠΎΠ³ΠΎ ΡΠ΄ΡΠ°. ΠΠΎΠΆΠ»ΠΈΠ²ΡΡΡΡ ΠΏΠ΅ΡΠ΅Π±ΡΠ³Ρ Π³ΡΠ΄ΡΠΎΠ³Π°Π»ΠΎΠ³Π΅Π½ΡΠ²Π°Π½Π½Ρ Ρ ΡΠΎΠ΄Π°Π½ΡΠ²Π°Π½Π½Ρ Π΄Π°Π½ΠΈΡ
Π±Π΅Π½Π·Π°ΠΌΡΠ΄ΡΠ² Π²ΠΈΠ·Π½Π°ΡΠ°ΡΡΡΡΡ ΡΡΠ΅ΡΠΈΡΠ½ΠΈΠΌ ΡΠ°ΠΊΡΠΎΡΠΎΠΌ. ΠΠ°ΡΠ²Π½ΡΡΡΡ ΠΎΠ±βΡΠΌΠ½ΠΈΡ
Π·Π°ΠΌΡΡΠ½ΠΈΠΊΡΠ² Π² Ρ
ΡΠ½ΠΎΡΠ΄Π½ΠΎΠΌΡ ΡΠ΄ΡΡ Π½Π΅ Π΄ΠΎΠ·Π²ΠΎΠ»ΡΡ Π²Π²Π΅ΡΡΠΈ Π°ΡΠΎΠΌ Π³Π°Π»ΠΎΠ³Π΅Π½Ρ Ρ 6 ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½Π½Ρ Ρ
ΡΠ½ΠΎΡΠ΄Π½ΠΎΠ³ΠΎ ΡΠ΄ΡΠ° β Π² ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ Π΄ΡΡ Π³Π°Π»ΠΎΠ³Π΅Π½ΠΎΠ²ΠΎΠ΄Π½ΡΠ² Π½Π° 4-ΠΌΠ΅ΡΠΈΠ»-N-{4,5-Π΄ΠΈΠΌΠ΅ΡΠΈΠ»-3-[(4-ΠΌΠ΅ΡΠΈΠ»Π±Π΅Π½Π·Π΅Π½-1-ΡΡΠ»ΡΡΠΎΠ½ΡΠ»)ΡΠΌΡΠ½ΠΎ]-6-ΠΎΠΊΡΠΎΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°-1,4-Π΄ΡΡΠ½-1-ΡΠ»}Π±Π΅Π½Π·Π°ΠΌΡΠ΄ ΠΎΡΡΠΈΠΌΠ°Π½ΠΎ ΡΡΠ»ΡΠΊΠΈ ΠΏΡΠΎΠ΄ΡΠΊΡ Π°ΡΠΎΠΌΠ°ΡΠΈΠ·Π°ΡΡΡ Ρ
ΡΠ½ΠΎΡΠ΄Π½ΠΎΠ³ΠΎ ΡΠΈΠΊΠ»Ρ β N-{2-Π³ΡΠ΄ΡΠΎΠΊΡΠΈ-3,4-Π΄ΠΈΠΌΠ΅ΡΠΈΠ»-5-[(4-ΠΌΠ΅ΡΠΈΠ»Π±Π΅Π½Π·Π΅Π½-1-ΡΡΠ»ΡΡΠΎΠ½ΡΠ»)Π°ΠΌΡΠ½ΠΎ]ΡΠ΅Π½ΡΠ»}-4-ΠΌΠ΅ΡΠΈΠ»Π±Π΅Π½Π·Π°ΠΌΡΠ΄. ΠΡΠΎΠ΄ΡΠΊΡ ΠΏΡΠΈΡΠ΄Π½Π°Π½Π½Ρ ΡΡΠΎΡΡΠ°Π½Π°Ρ-ΡΠΎΠ½Ρ ΠΎΡΡΠΈΠΌΠ°Π½ΠΎ ΡΡΠ»ΡΠΊΠΈ Π΄Π»Ρ 4-Ρ
Π»ΠΎΡ-N-{4-ΠΌΠ΅ΡΠΈΠ»-3-[(4-ΠΌΠ΅ΡΠΈΠ»Π±Π΅Π½Π·Π΅Π½-1-ΡΡΠ»ΡΡΠΎΠ½ΡΠ»)ΡΠΌΡΠ½ΠΎ]-6-ΠΎΠΊΡΠΎΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°-1,4-Π΄ΡΡΠ½-1-ΡΠ»}Π±Π΅Π½Π·Π°ΠΌΡΠ΄Ρ, ΡΠΊΠΈΠΉ ΠΌΠ°Ρ Π²ΡΠ»ΡΠ½Π΅ ΠΎΡΡΠΎ-ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½Π½Ρ ΠΏΠΎ Π²ΡΠ΄Π½ΠΎΡΠ΅Π½Π½Ρ Π΄ΠΎ ΠΊΠ°ΡΠ±ΠΎΠ½ΡΠ»ΡΠ½ΠΎΠ³ΠΎ Π°ΡΠΎΠΌΡ ΠΠ°ΡΠ±ΠΎΠ½Ρ Ρ
ΡΠ½ΠΎΡΠ΄Π½ΠΎΠ³ΠΎ ΡΠ΄ΡΠ°. ΠΠ»Ρ ΠΏΡΠΎΠ΄ΡΠΊΡΡΠ² Π³ΡΠ΄ΡΠΎΠ³Π°Π»ΠΎΠ³Π΅Π½ΡΠ²Π°Π½Π½Ρ Ρ ΡΠΎΠ΄Π°Π½ΡΠ²Π°Π½Π½Ρ N-{3-[(Π°ΡΠΈΠ»ΡΡΠ»ΡΠΎΠ½ΡΠ»)ΡΠΌΡΠ½ΠΎ]-6-ΠΎΠΊΡΠΎΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°-1,4-Π΄ΡΡΠ½-1-ΡΠ»}Π±Π΅Π½Π·Π°ΠΌΡΠ΄ΡΠ² ΠΌΠΎΠΆΠ»ΠΈΠ²ΠΈΠΉ ΠΏΡΠΎΡΠ² Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠ΅ΠΉ Insulysin inhibitor, CTGF expression inhibitor, Glutamyl endopeptidase II inhibitor, Transcription factor STAT3 inhibitor
Efficient two-frequency ultrasound extraction of Ξ²-carotene from the fungus Blakeslea trispora
Carotenoids are known for their lower environmental pollution, lower costs, shorter extraction time compared to regular extraction methods and higher extraction efficiency. Ultrasound has significant advantages in the extraction of a great number of biologically active compounds including carotenoids. Benefits of using ultrasound for extraction of various compounds are numerous and include effective mixing and micro-mixing, more efficient energy transfer, reduced thermal and concentration gradients, reduced temperature. The aim of this work was to investigate the influence of two-frequency ultrasound main parameters such as ultrasonic intensity, sonication time, and temperature. Application of two-frequency ultrasound (simultaneous influence of ultrasound with frequency of 20β46 kHz, intensity of 1.5β2.5 W/cm2 and frequency of 1.0β2.0 MHz, intensity of 2.0β3.0 W/cm2) raises the percentage of Ξ²-carotene extraction from biomass of the fungus Blakeslea trispora from 90β92% up to 98β99% in comparison with one frequency ultrasound. The recommended oil temperature for the extraction process is 35Β°C, because lower temperature leads to reduction of percentage of Ξ²-carotene extraction, and higher temperature promotes unjustified increase of expenditure of energy
Cold Rolling of Steel Strips with Metal-Working Coolants
The efficiency of cold rolling of steel strip in the main depends on the quality of technological lubricant and its cost. In this regard, it is important to develop new compositions of effective metalworking coolants that are low cost and provide maximum reduction in the friction coefficient. We developed and tested the new compositions of metalworking coolants on the basis of vegetable oil and chicken fat. The metalworking coolants were tested in Donbas State Engineering Academy (DSEA) on a laboratory rolling mill, 100 × 100, in cold rolling of 08Kp steel. The efficiency of the coolants was determined by the stretch ratio λ and the friction coefficient μ in the deformation zone, which was found by the forward slip method. We found the metalworking coolant with 100% concentration of boric acid esters of mono- and diglycerides is the most effective in the rolling of thin steel strips. Thus, the new metalworking coolants (MWC) on the basis of boric acid esters of mono- and diglycerides, synthesized on the basis of sunflower oil, can be recommended for use in the rolling of structural steels on account of its availability, high efficiency and low cost