23 research outputs found

    The Relationship between Neuropsychological Performance and Level of Direct Current Potential in Patients with Occupational Diseases from Exposure to Physical Factors

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    The aim of the study was to identify the peculiarities of neuropsychological indices disorders depending on changes in the level of constant potential in patients with occupational diseases as a result of physical factors.Materials and methods. The study involved 60 patients with vibration disease caused by local vibration (group I), 106 patients with vibration disease caused by combined exposure to local and general vibration (group II), 101 civil aviation pilots with an established diagnosis of professional sensorineural hearing loss (group III), and 50 healthy men (group IV, comparison group) who were not exposed to vibration and noise due to the specifics of their professional activities. Methods of neuro-energy mapping and neuropsychological testing were used.Results. In groups I–II, compared with group IV, an increase in local levels of constant potential (DC-potential level) in the central, right temporal, and central frontal parts of the brain (2.3 (6.5–3.8) mV; –0.3 (–2.1–2.1); 2.1 (–3.4–6.8) and –0.3 (–3.1–4.3); –2.24 (–6.4–3.8); 0.9 (–3.1–8.5) mV at p = 0.005, 0.007 and 0.004 respectively). Differences in the values of DC-potential level gradients in individuals of group III when compared with group IV reached the level of significance in the central, temporal, occipital leads relative to the central frontal (–5.0 (–13.1–3.8); –4.1 (–9.4–5.1); –2.1 (–10.9–6.6); –6.3 (–15.3–1.8) and 2.9 (–3.0–10.6); 2.2 (–4.5–13.8); 5.6 (–7.6–14.1); –1.4 (–7.5–3.9) mV at p = 0.008; 0.009; 0.009, and 0.007 respectively). Cognitive disorders in patients of groups I–III when compared with group IV correspond to a mild disorder of dynamic, constructive praxis and expressive speech (1.40 (0–1,6); 1.43 (0–1,7); 1.2 (0–1,5) and 0.3 (0–1); 0.2 (0–1); 0.06 (0–1) points at p = 0.008, 0.008 and 0.009 respectively).Conclusions. A common neurofunctional sign of a mild impairment of the cognitive sphere in occupational diseases caused by physical factors is an increase in direct current potential level in the frontal-central and parieto-occipital regions, predominantly of the left hemisphere of the brain

    Neuropsychological criteria for diagnosing cognitive impairment in patients with occupational diseases caused by physical factors

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    The aim. To identify neuropsychological signs of a decrease in higher mental functions associated with professional exposure to physical factors.Materials and methods. The study involved 40 patients with vibration disease caused by local vibration (Group 1), 50 patients with vibration disease caused by combined exposure to local and general vibration (Group 2), 71 civil aviation pilots with an established diagnosis of occupational sensorineural hearing loss (Group 3), and 38 healthy men (Group 4, control group). Methods of neuropsychological testing were used.Results. In Groups 1–3 the state of functioning of the cognitive sphere is represented by a mildly pronounced nature of impairments. The results of MMSE and FAB tests in patients of Groups 1–2, when compared with Group 4, determine a decrease in the functional activity of the frontal lobes and subcortical structures (25 (24–27), 25 (22–26), 15 (14–16) and 15 (13–16) points respectively). The most informative feature associated with the fact of occupational exposure to local vibration is the indicator of long-term memory (F = 9.41; Ρ€ = 0.003); with combined impact of local and general vibration – short-term memory (F = 11.0; Ρ€ = 0.001); with aircraft noise – objective gnosis (F = 8.48; Ρ€ = 0.001). The obtained features make it possible to track with a high degree of accuracy the development of a decrease in cognitive functions in this contingent (86.1 %, 84.8 % and 72.1 % respectively).Conclusion. Common signs of changes in the cognitive sphere and lesions of the brain structures in patients with vibration disease are a decrease in praxis, impressive speech, for occupational sensorineural hearing loss – the lack of analytical-synthetic and conceptual thinking, object and finger gnosis, characterizing the inferiority of the functioning of the frontal and parietal regions of the left hemisphere

    PSYCHIC AND VEGETATIVE CHANGES IN EMPLOYEES AT THE INFLUENCE OF NEUROTOXICANTS

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    As a result of improving the working condition for the employees of chemical productions undergoing to the exposure to the neurotoxicants the clinical picture of the neurotoxications was considerably found to change. The oligosymptomatic forms of the occupational pathology which, may make difficult the differential diagnostics along with, the other diseases of the central nervous system, which, proceed with, the asthenic-vegetative syndrome were revealed, to prevail. The methods of performing the psychological and. vegetative tests which allow to suggest the early manifestations of the occupational intoxication, as well as to form the risk groups have been first introduced, in this paper. The analysis of the findings has allowed, to reveal the cognitive deficiency in the employees with a long-term, working period, in the combination, with the emotional-willing disorders, the polysystemic vegetative dysfunction, of the sympathetic trend, on the background, of the rapidly expressed, disorders in the neurological status. The need, of introducing the approach to performing the periodical medical examinations at the productions of chemical industry is indicated in this paper

    Possibilities of Application of Modern Neurophysiological Methods in Diagnosis of Vibration Disease

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    Vibration disease is one of the leading in the structure of occupational diseases. A more detailed study of the pathogenesis, expanding the possibilities of diagnosis of vibration disease, is necessary. The aim of the study is to determine the diagnostic value of stabilometry, quantitative sensory testing and neuroenergocarting in vibration disease associated with the combined effects of local and general vibration. Materials and methods. Two groups of patients were examined: with the diagnosis of vibration disease associated with the combined effect of local and general vibration – 50 people (age 48.7 Β± 3.1 years), not in contact with vibration – 30 people (age 49.1 Β± 2.8 years). The study of the equilibrium function, the determination of the level of the constant potential of the brain by 12 standard leads and the determination of temperature and pain sensitivity. Statistical processing of the results was carried out using the software package β€œStatistica 6.0” (StatSoft Inc., USA). Differences were considered statistically significant at p < 0.05. Results. In vibration disease, the vertical stance of patients is more unstable than in patients with no contact with vibration. In patients with vibration disease, there is a decrease in the threshold of cold sensitivity and an increase in the threshold of thermal sensitivity and thermal pain compared to the control group. According to our data, the increased level of permanent potential in patients with vibration disease is observed in the central (22.7 (12.6; 30.7) mV) and right central (20.4 (11.5; 27.1) mV), also the average level of permanent capacity in this group is increased – 17.1 (8.4; 25.8) mV.Conclusion. The results obtained indicate the involvement of the neurosensory complex united by single thalamic and cortical centers in the pathological process and confirm the diagnostic value of the methods used

    DISORDERS OF HIGHER PSYCHICAL FUNCTIONS IN ENCEPHALOPATHY OF DIFFERENT GENESIS

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    We examined the patients with encephalopathy of different genesis (vascular from the exposure of mercury and alcohol). Besides the comparison of clinical picture of disease the comparative analysis of psychological and neuropsychological indices was performed. The disorders of higher psychical functions revealed in patients with encephalopathy from different etiological factor may testify the dysfunction of subcortical-frontal systems that take part in the regulation of cognitive functions

    ΠžΡΠΎΠ±Π΅Π½Π½ΠΎΡΡ‚ΠΈ распрСдСлСния уровня постоянного ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»Π° Π³ΠΎΠ»ΠΎΠ²Π½ΠΎΠ³ΠΎ ΠΌΠΎΠ·Π³Π° Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с хроничСской Ρ€Ρ‚ΡƒΡ‚Π½ΠΎΠΉ интоксикациСй

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    The aim of the research was to reveal features of distribution of DC-potential level of the brain in patients with chronic mercury intoxication.Materials and methods. The study involved 33 male patients with chronic mercury intoxication and 38 healthy men (comparison group) who, by the specifics of their professional activities, were not exposed to neurotropic substances. We used the electrophysiological method of neuroenergy mapping.Results. In the group of patients with chronic mercury intoxication, persons with a low level of constant potential prevailed when compared with the comparison group (36 and 11%, respectively). With a decrease in the level of constant potential in the frontal parts, an increase was observed in the central leads (Fpz – Cz = –1,2 (–6,3–12,6) mV), and with an increase in it, a decrease in the occipital (Fpz-Oz = 4,2 (–4,8–21,4) mV) and the right temporal (Fpz-Td = 0,01 (–6,5–16,3) mV) areas.Right hemisphere temporal asymmetry was manifested in an increase in the Td-Ts index (p = 0,03) when compared with that of the comparison group, (0,66 Β± 0,01) and (–4,34 Β± 1,12) mV, respectively. Using discriminant analysis, five reliable diagnostic signs were identified: the values of the parameters of the parietal (Pz), right parietal (Pd), right temporal (Td), central (Cz), occipital (Oz) leads. The most informative sign was the value of the index of the parietal lead (Pz, F = 21,1).Conclusion. A distinctive neurophysiological sign associated with chronic exposure to metallic mercury vapors is an increase in indices of the parietal, right parietal, right temporal, central, occipital leads compared with those inherent in the normal population. ЦСль исслСдования – Π²Ρ‹ΡΠ²ΠΈΡ‚ΡŒ особСнности распрСдСлСния уровня постоянного ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»Π° Π³ΠΎΠ»ΠΎΠ²Π½ΠΎΠ³ΠΎ ΠΌΠΎΠ·Π³Π° Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с хроничСской Ρ€Ρ‚ΡƒΡ‚Π½ΠΎΠΉ интоксикациСй.ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹. Π’ исслСдовании приняли участиС 33 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π° муТского ΠΏΠΎΠ»Π° с хроничСской ртутной интоксикациСй ΠΈ 38 Π·Π΄ΠΎΡ€ΠΎΠ²Ρ‹Ρ… ΠΌΡƒΠΆΡ‡ΠΈΠ½ (Π³Ρ€ΡƒΠΏΠΏΠ° сравнСния), ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΏΠΎ спСцификС ΠΏΡ€ΠΎΡ„Π΅ΡΡΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΉΒ  Π΄Π΅ΡΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ Π½Π΅ ΠΏΠΎΠ΄Π²Π΅Ρ€Π³Π°Π»ΠΈΡΡŒ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡ‚Π²ΠΈΡŽ Π½Π΅ΠΉΡ€ΠΎΡ‚Ρ€ΠΎΠΏΠ½Ρ‹Ρ… вСщСств. Π˜ΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Π»ΠΈΒ ΡΠ»Π΅ΠΊΡ‚Ρ€ΠΎΡ„ΠΈΠ·ΠΈΠΎΠ»ΠΎΠ³ΠΈΡ‡Π΅ΡΠΊΠΈΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ – нСйроэнСргокартированиС.Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. Π’ Π³Ρ€ΡƒΠΏΠΏΠ΅ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с хроничСской Ρ€Ρ‚ΡƒΡ‚Π½ΠΎΠΉ интоксикациСй ΠΏΡ€Π΅ΠΎΠ±Π»Π°Π΄Π°Π»ΠΈ Π»ΠΈΡ†Π° с ΠΏΠΎΠ½ΠΈΠΆΠ΅Π½Π½Ρ‹ΠΌ ΡƒΡ€ΠΎΠ²Π½Π΅ΠΌ постоянного ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»Π° ΠΏΡ€ΠΈ сопоставлСнии с Π³Ρ€ΡƒΠΏΠΏΠΎΠΉ сравнСния (36 ΠΈ 11% соотвСтствСнно). ΠŸΡ€ΠΈ сниТСнии уровня постоянного ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»Π° Π² Π»ΠΎΠ±Π½Ρ‹Ρ… ΠΎΡ‚Π΄Π΅Π»Π°Ρ… Π½Π°Π±Π»ΡŽΠ΄Π°Π»ΠΎΡΡŒΒ ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΠ΅ ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ Π² Ρ†Π΅Π½Ρ‚Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… отвСдСниях (Fpz–Cz = –1,2 (–6,3–12,6) ΠΌΠ’), Π° ΠΏΡ€ΠΈ Π΅Π³ΠΎ ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΠΈ – сниТСниС Π² Π·Π°Ρ‚Ρ‹Π»ΠΎΡ‡Π½ΠΎΠΉ (Fpz-Oz = 4,2 (–4,8–21,4) ΠΌΠ’) ΠΈ ΠΏΡ€Π°Π²ΠΎΠΉ височной (Fpz-Td = 0,01Β (–6,5–16,3) ΠΌΠ’) областях.ΠŸΡ€Π°Π²ΠΎΠΏΠΎΠ»ΡƒΡˆΠ°Ρ€Π½Π°Ρ височная асиммСтрия ΠΏΡ€ΠΎΡΠ²ΠΈΠ»Π°ΡΡŒ Π² ΡƒΠ²Π΅Π»ΠΈΡ‡Π΅Π½ΠΈΠΈ показатСля Td-Ts (Ρ€ = 0,03) при сопоставлСнии с Ρ‚Π°ΠΊΠΎΠ²Ρ‹ΠΌ Π³Ρ€ΡƒΠΏΠΏΡ‹ сравнСния – (0,66 Β± 0,01) ΠΈ (–4,34 Β± 1,12) ΠΌΠ’ соотвСтствСнно. Π‘ ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ дискриминантного Π°Π½Π°Π»ΠΈΠ·Π° выявлСно ΠΏΡΡ‚ΡŒ достовСрных диагностичСских ΠΏΡ€ΠΈΠ·Π½Π°ΠΊΠΎΠ²: значСния ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ ΠΏΠΎ Ρ‚Π΅ΠΌΠ΅Π½Π½ΠΎΠΌΡƒ (Pz), ΠΏΡ€Π°Π²ΠΎΠΌΡƒ Ρ‚Π΅ΠΌΠ΅Π½Π½ΠΎΠΌΡƒ (Pd), ΠΏΡ€Π°Π²ΠΎΠΌΡƒ височному (Td), Ρ†Π΅Π½Ρ‚Ρ€Π°Π»ΡŒΠ½ΠΎΠΌΡƒΒ (Cz), Π·Π°Ρ‚Ρ‹Π»ΠΎΡ‡Π½ΠΎΠΌΡƒ (Oz) отвСдСниям. НаиболСС ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ‚ΠΈΠ²Π½Ρ‹ΠΌ ΠΏΡ€ΠΈΠ·Π½Π°ΠΊΠΎΠΌ Π±Ρ‹Π»ΠΎ Π·Π½Π°Ρ‡Π΅Π½ΠΈΠ΅ показатСля по Ρ‚Π΅ΠΌΠ΅Π½Π½ΠΎΠΌΡƒ ΠΎΡ‚Π²Π΅Π΄Π΅Π½ΠΈΡŽ (Pz, F = 21,1).Π—Π°ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅. ΠžΡ‚Π»ΠΈΡ‡ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌ нСйрофизиологичСским ΠΏΡ€ΠΈΠ·Π½Π°ΠΊΠΎΠΌ, сопряТСнным с Ρ„Π°ΠΊΡ‚ΠΎΠΌ хроничСского воздСйствия ΠΏΠ°Ρ€ΠΎΠ² мСталличСской Ρ€Ρ‚ΡƒΡ‚ΠΈ, являСтся ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΠ΅ ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ ΠΏΠΎ Ρ‚Π΅ΠΌΠ΅Π½Π½ΠΎΠΌΡƒ, ΠΏΡ€Π°Π²ΠΎΠΌΡƒΒ Ρ‚Π΅ΠΌΠ΅Π½Π½ΠΎΠΌΡƒ, ΠΏΡ€Π°Π²ΠΎΠΌΡƒ височному, Ρ†Π΅Π½Ρ‚Ρ€Π°Π»ΡŒΠ½ΠΎΠΌΡƒ, Π·Π°Ρ‚Ρ‹Π»ΠΎΡ‡Π½ΠΎΠΌΡƒ отвСдСниям ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с Ρ‚Π°ΠΊΠΎΠ²Ρ‹ΠΌΠΈ, присущими Π½ΠΎΡ€ΠΌΠ°Π»ΡŒΠ½ΠΎΠΉ популяции

    Possibilities of neurophysiological methods of study in encephalopathy of occupational and non-occupa-tional genesis

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    The diagnostic possibilities of the neurophysiological study methods were studied in the process of examining the patients with chronic mercury intoxication, discirculatory encephalopathy and chronic alcoholism to reveal the disorders of the bioelectrical activity, indicating the organic brain injury in the encephalopathy of the occupational and non-occupational genesis. 36 patients with the postponed chronic mercury intoxication (CMI) working at the chemical enterprise in shop on manufacture soda and chlorine a method mercury electrolyses (group I) were chosen for study. The average age of the patients in this group was 50,8 Β± 6,0, average work period -14,7 Β± 1,05years. The second group consisted of 30 patients with discirculatory encephalopathy (DE) (average age - 50,8 Β± 5,2 years old). The third group consisted of 30 persons with chronic alcoholism (average time period of the alcoholization was 16,7 Β± 2,1 years, average age - 47,5 Β± 6,6 years old). The control group consisted of 30 practically healthy men (average age - 50,8 Β± 5,2 years old, average total working period -14,2 Β± 1,2 years) who were not occupationally exposed to the harmful substances (group IV). The persons examined in all the groups were males. The complex analysis of the available neurophysiological indices allowed to reveal the expression of the brain deficiency, to assess the specificity of the disorders revealed in the encephalopathies of different genesis. The multinidus brain injuries were revealed indigently of the etiological factor in encephalopathies. The presence of the equivalent sources of pathological activity in the field of the dyencefalic structures which may be clinically characterized by the emotional and cognitive disorders was found to be a common sing. The injury of the corny body was considered as the specific character for mercury-induced encephalopathy evidenced by the presence of the expressed depressive responses. More frequent presence of the pathological nidus activity in the cerebellar field which were clinically followed by the cerebellar disorders were presented as the characteristic difference for alcohol encephalopathy. The temporal brain regions were considered as the more typical source of the pathological activity in the discirculatory encephalopathy

    STATE OF MINERAL BONE TISSUE DENSITY IN EMPLOYEES ATTENDING TO SEVEROMUISKI TUNNEL

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    The results of the examination of employees realizing the exploitation of the Severomuiski distance of railway in serving of the tunnels of the East-Siberian railway concerning studying the state of mineral bone tissue density are presented in this paper. Examined patients (66 men) were divided into two age groups β€” up to 50 years old. and. older than 50 years old. The double-energetic x-ray absorptiometry (osteodensitometry) was performed. The reduction in the mineral bone tissue density was found to be in both studied groups

    CΡ€Π°Π²Π½ΠΈΡ‚Π΅Π»ΡŒΠ½Π°Ρ характСристика ΠΊΠΎΠ³Π½ΠΈΡ‚ΠΈΠ²Π½Ρ‹Ρ… Π½Π°Ρ€ΡƒΡˆΠ΅Π½ΠΈΠΉ Ρƒ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с токсичСской (Ρ€Ρ‚ΡƒΡ‚Π½ΠΎΠΉ) ΠΈ сосудистой (дисциркуляторной) энцСфалопатиСй

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    The neurophysiological (the registration of induced potentials P300) and the psychological examinations of 70 patients, males, with chronic mercury intoxications (ChMI) and discirculatory encephalopathy (DE) have been performed with aim to reveal the features of cognitive disorders (CD). The study results have shown the presence of light CD and small demention in the patients of both groups, preferably, of subcork type for the patients with ChMI and preferably of cork type – for the patients with DE.ΠŸΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΎ нСйрофизиологичСскоС (рСгистрация Π²Ρ‹Π·Π²Π°Π½Π½Ρ‹Ρ… ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΠΎΠ² Π 300) ΠΈ психологичСскоС обслСдованиС 70 ΠΌΡƒΠΆΡ‡ΠΈΠ½ с хроничСской Ρ€Ρ‚ΡƒΡ‚Π½ΠΎΠΉ интоксикациСй (Π₯РИ) ΠΈ дисциркуляторной энцСфалопатиСй (Π”Π­) с Ρ†Π΅Π»ΡŒΡŽ выявлСния особСнностСй ΠΊΠΎΠ³Π½ΠΈΡ‚ΠΈΠ²Π½Ρ‹Ρ… Π½Π°Ρ€ΡƒΡˆΠ΅Π½ΠΈΠΉ (КН). Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ исслСдования ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ Π½Π°Π»ΠΈΡ‡ΠΈΠ΅ Π»Π΅Π³ΠΊΠΈΡ… КН ΠΈ Π»Π΅Π³ΠΊΠΎΠΉ Π΄Π΅ΠΌΠ΅Π½Ρ†ΠΈΠΈ Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² ΠΎΠ±Π΅ΠΈΡ… Π³Ρ€ΡƒΠΏΠΏ, прСимущСствСнно ΠΏΠΎΠ΄ΠΊΠΎΡ€ΠΊΠΎΠ²ΠΎΠ³ΠΎ Ρ‚ΠΈΠΏΠ° для Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… Π₯РИ ΠΈ ΠΊΠΎΡ€ΠΊΠΎΠ²ΠΎΠ³ΠΎ - для ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с Π”Π­

    Π’ΠΎΡΡΡ‚Π°Π½ΠΎΠ²ΠΈΡ‚Π΅Π»ΡŒΠ½Π°Ρ дСгидратация биоспиртов – пСрспСктивный ΠΏΡƒΡ‚ΡŒ получСния ΠΌΠΎΡ‚ΠΎΡ€Π½Ρ‹Ρ… Ρ‚ΠΎΠΏΠ»ΠΈΠ²

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    The reaction of reduction dehydratation of aliphatic alcohols into the hydrocarbons is the perspective approach for receiving liquid fuel. It opens ways to the industrial method of one-study receiving linear and cyclic alkanes, being high-energy components of aviation fuel, from bioalcohols (ethanol, butanols, pentanols). It has been found that combinated systems based on hydrides of intermetallic compounds are sufficiently effective catalysts and lead to the formation mixture of hydrocarbons with considerable content of isoalkanes. It has been appeared synergetic effect in formation of alkanes in the presence of two-component composition consisting of hydride intermetallic compound and alumoplatinum catalyst.РСакция Π²ΠΎΡΡΡ‚Π°Π½ΠΎΠ²ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Π΄Π΅Π³ΠΈΠ΄Ρ€Π°Ρ‚Π°Ρ†ΠΈΠΈ алифатичСских спиртов Π² ΡƒΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡ€ΠΎΠ΄Ρ‹ являСтся пСрспСктивным ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ΠΎΠΌ ΠΊ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½ΠΈΡŽ ΠΆΠΈΠ΄ΠΊΠΎΠ³ΠΎ Ρ‚ΠΎΠΏΠ»ΠΈΠ²Π°. Она ΠΎΡ‚ΠΊΡ€Ρ‹Π²Π°Π΅Ρ‚ ΠΏΡƒΡ‚ΠΈ ΠΊ ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½ΠΎΠΌΡƒ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρƒ одностадийного получСния Π»ΠΈΠ½Π΅ΠΉΠ½Ρ‹Ρ… ΠΈ цикличСских Π°Π»ΠΊΠ°Π½ΠΎΠ², ΡΠ²Π»ΡΡŽΡ‰ΠΈΡ…ΡΡ высококалорийными ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚Π°ΠΌΠΈ Π°Π²ΠΈΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ Ρ‚ΠΎΠΏΠ»ΠΈΠ²Π°, ΠΈΠ· биоспиртов (этанола, Π±ΡƒΡ‚Π°Π½ΠΎΠ»ΠΎΠ², ΠΏΠ΅Π½Ρ‚Π°Π½ΠΎΠ»ΠΎΠ²). ВыявлСно, Ρ‡Ρ‚ΠΎ ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Π΅ систСмы Π½Π° основС Π³ΠΈΠ΄Ρ€ΠΈΠ΄ΠΎΠ² интСрмСталличСских соСдинСний ΡΠ²Π»ΡΡŽΡ‚ΡΡ достаточно эффСктивными ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°Ρ‚ΠΎΡ€Π°ΠΌΠΈ ΠΈ приводят ΠΊ ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΡŽ смСси ΡƒΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡ€ΠΎΠ΄ΠΎΠ² со Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹ΠΌ содСрТаниСм ΠΈΠ·ΠΎΠ°Π»ΠΊΠ°Π½ΠΎΠ². ΠžΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½ синСргичСский эффСкт Π² ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠΈ Π°Π»ΠΊΠ°Π½ΠΎΠ² ΠΏΡ€ΠΈ использовании Π΄Π²ΡƒΡ…ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚Π½ΠΎΠΉ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ†ΠΈΠΈ, состоящСй ΠΈΠ· Π³ΠΈΠ΄Ρ€ΠΈΠ΄Π° интСрмСталличСского соСдинСния ΠΈ Π°Π»ΡŽΠΌΠΎΠΏΠ»Π°Ρ‚ΠΈΠ½ΠΎΠ²ΠΎΠ³ΠΎ ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°Ρ‚ΠΎΡ€Π°
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