单词 | Toluene |
例句 | 1. He said that the method can detect toluene in glue sniffers' blood. 2. The ability of currently existing toluene. 3. After modification the content of heptene soluble and toluene insoluble was decreased , the content of asphaltene was increased. 4. The kinetics of hydrodealkylation of toluene into benzene on CrMo catalyst was studied. 5. Taking toluene, chlorosulfonic acid and phosphoryl chloride as raw materials, p-toluenesulfonyl was synthesized. 6. This paper determine tiny benzene and toluene of the waxes by head-space gas chromatograph with Flame Ion Detector. The method is accure,[] rapid and repeatable easily. 7. PVA gel modified with maleic anhydride has been used in dehydration of alkane(n-heptane)and arene(toluene)oil-water systems. 8. The content of releasing toluene and xylene gas in the air. 9. The regioselective nitration of toluene and chlorobenzene with nitrates and supported nitrates on solid acid catalysts and supports in the presence of acetic anhydride is studied. 10. In toluene solution, the esterification reaction of 3,5,6-trichlorosalicylic acid and n-pentanol took place with nano catalyst, and then the 3,5,6-trichlorosalicylic ester was produced. 11. Properties White powders, inodorous, atoxic. Soluble in toluene, acetone and alcohol, insoluble in water. 12. Toluene can be used for gasoline blending components, solvents and through disproportionation and transalkylation of benzene and xylene system, and a variety of synthetic organic chemicals. 13. It is also possible to dilute some Araldite resins with toluene for pre-casting soak. 14. TNT (trinitrotoluene):Pale yellow, solid organic compound made by adding nitrate (-NO2) groups to toluene. 15. The invention provides a catalyst used for preparing para-xylene and low-carbon olefin movable bed by selective methylation of toluene with methanol. 16. From the experimental results, it can be inferred that the process of purifying the waste gas containing toluene in low concentration by using the biofilter is limited by mass transfer. 17. A capillary gas chromatographic method for determination of the residual amounts of acetone, isopropanol and toluene in betaxolol hydrochloride is reported. 18. The water - based polyurethane adhesives were made with the basic raw material of polyetherdi-ol, toluene diisocyanate and dihydroxylmethyl propionic acid. 19. A pulse technique is applied to kinetic study for disproportionation of toluene on mordenite catalysts. 20. It can be presumed that the nucleation rate of HHM will increase with the rise of temperature and supersaturated ratio,() when toluene used as dissolvent. 21. Waterborne polyurethane (WPU) emulsions were synthesized by step-growth addition polymerization from a polyether polylol, toluene diisocyanate, dimethylolpropionic acid. 22. The moisture cured polyurethane was synthesized with mixing polyether diol, toluene diisocyanate (TDI) as main raw materials, epoxy resin and hydroxy acrylic resin as modifiers. 23. An aqueous polyurethane emulsion adhesive was prepared from epoxy resin, toluene diisocyanate (TDI) and dimethylol propionic acid (DMPA). The product structure was characterized by infrared spectrum. 24. Used as a component of solvents in the process of the azeotropism, and could partly replace toluene, xylene and methyl isobutyl ketone (MIBK). 25. First-order stimulated Raman spectrum of carbon sulfide second-order stimulated Raman spectrum of carbon sulfide and fourth-order stimulated Raman spectrum of toluene were observed in the experiments. 26. The synthesis of 1,4 dioxane from diethylene glycol using p toluene sulphonic acid as a catalyst was discussed. 27. Effecrts of calcium modified ZSM-5 zeolites and reaction conditions on the catalytic activity and selectivity of toluene ethylation have been studied. 28. Research progresses in the reduction of dinitrotoluene for the preparation of toluene diamine were reviewed. 29. Solubility of nitrobenzenamine in xylene was higher than that in toluene, but solubility of etherate was nearly the same in the two solvents. 30. The performance of the three catalysts was studied in the catalytic combustion of volatile organic compounds (benzene, toluene and p-xylene) via the Gas Chromatogram analysis. 31. In addition, the company also offers a variety of brands of imported toluene diisocyanate. 32. The method that analyzes the purity of toluene diisocyanate by capillary gas chromatograph was established. 33. The polyester anionic waterborne polyurethane emulsion was synthesized by the reaction of toluene diisocyanate with polyester glycol, hydrophilic extender and other glycol. 34. Lignin based polyurethane films were prepared by solution casting from hydroxypropyl lignin derivatives and hexamethylene diisocyanate (HDI) or toluene diisocyanate (TDI). 35. This is a study of the changes in the haematopoietic system in 4-month-old rats exposed to toluene and xylene. 36. Benotrichloride, benzyl chloride, chloroform, chloromethane, chlorobenzene, 1,4-dichlorobenzene, hexachlorobenzene, pentachlorobenzene, 1,2,4,5-tetrachloroethylene, toluene, carbon tetrachloride. 37. Has injection hole, flame glimmer, it can dissolve in toluene. 38. The deactivation kinetics for the vapor-phase disproportionation of toluene over mordenite catalyst has been studied by using a combined unit of micro-reactor under pressure and gas chromatography. 39. Using phenylamine and acetic acid as raw materials, cyclohexane and toluene - p - acid as dehydration and catalyst respectively. 40. A new solid phase microextraction (SPME) fiber coated with activated charcoal was estimated by determination of benzene, toluene and xylene(BTX)in indoor air. 41. The diluent, such as toluene, was an inhibitor of coke deposition on HZSM - 5 zeo - lite catalyst surface. 42. Starting from toluene diisocyanate (TDI), polypropylene glycol (PPG) and dimethylol propionic acid (DMPA), the anionic water-borne polyurethane emulsion was synthesized. 43. Objective To investigate the feasibility of urinary orthocresol levels as a biological monitoring indicator for toluene exposure. 44. The composition contains in percentage by weight: polyurethane pre-polymer based on toluene diisocyanate and diethylene glycol - 55-35%, polytrifluorochloroethylene - 35-55%, aluminum bronze - 5-10%. 45. Our core products are propylene oxide (PO), tertiary butyl alcohol (TBA), styrene monomer (SM), toluene diisocyanate (TDI) and aliphatic diisocyanates (ADI). 46. Indole catalytic cracking was performed on a fixed-bed microactivity test unit by using toluene, cetane, and tetralin as solvents. 47. A series of polysulfide based thio-polyurea was synthesized, which were based on isophorone diisocyanate, liquid polysulfide and 2,5-diamino-3,6-dimethylmercapto toluene. 48. In toluene disproportionation, the catalytic activity is effected by the acidity and crystal size of catalyst. 49. The reaction was highly para - selective. Ortho - to - para ratio was below 0.58 in the nitration products of toluene with n-propyl nitrate instead of 1.67, as compared with sulfonitric acid. 50. Quinoline catalytic cracking was studied on a fixed-bed microactivity test unit by using toluene, cetane, and tetralin as solvent. 51. In my search for a nail polish with less toxins I came across Loreal Jet Set and Loreal Steel Color which do not contain formaldehyde, toluene or dibutyl phthalate. 52. Chlorization - hydrolysis, electro oxidation and a method using p - nitro - toluene as starting material were described mainly. 53. A nonlinear integrated fault diagnosis and fault-tolerant control strategy is applied to a chemical reactor in which heptane is converted to toluene. The fault types of process are firstly analyzed. 54. The hemisuccination process and reaction kinetics of stigmasterol with succinic anhydride using toluene as a solvent, pyridine as a catalyst were studied. 55. System configuration and experiments results with respective to Toluene, Dichloroethane and Trichloroethane is presented. 56. While the conversion of benzene and toluene increase remarkably for metal catalysts supported on WO 3 co-precipitation. 57. Indirect electrooxidation of toluene to benzaldehyde simultaneously in the cathodic and anodic compartment of a cell has been studied. 58. No osmyl and no taste. Soluble in Benzene, Acetone, C2H4Cl2, CS2, toluene, party soluble in alcohol, diethyl ether, insoluble in water, gasoline. 59. PU paint firming agent, PU Jiaozhanji : floating toluene two different cyanic acid resin (TDI). 60. A process of recovery of the nitric acid and nitro compounds from mononitrotoluene (MNT) waste acid by toluene extraction was introduced. 61. Main products are anthracene, naphthalene, bitumen, crude carbolic acid, benzene, toluene and xylene etc. 62. The gas-phase oxidative acetoxylation of toluene with acetic acid to benzyl acetate over the Pd-Sn-K/SiO_2 catalyst was investigated in a fixed-bed flow reactor. 63. Diagnostic criteria and principles of management of occupational acute toluene poisoning. 64. In this paper, the synthesis methods and processes from naphthalene, methylnaphthalene, toluene and xylene as starting materials were introduced. 65. Methods Less toxic solvents such as cyclohexane, n-hexane, petroleum ether and chloroform were compared with benzene and toluene. 66. Aicohol mutipurpose glycollic hexanl mutipurpose benzene , toluene and xylene. 67. BCATI, abbreviation for 4-Butoxy Carbonyl Amino Toluene 2-Tsocyanate, was reacted with the active hydrogen atom in hydroxy of epoxy resin E-20 and then the modified epoxy resin was obtained. 68. A survey of the health condition of 308 cases of workers exposed to benzene, toluene, xylol and mixed derivatives of benzene is presented. 69. There were not n-hexane, benzene, toluene and xylene, o-xylene, styrene and other organic solvent residue in the purification of apple polyphenol by the headspace gas chromatograph. 70. The polyurethane was synthesized by modified lignin substituting part of glycol and toluene diisocyananate or diphenylmethane diisocyanate. 71. Glycerol triacetate was synthesized from glycerol and acetic acid using p -toluene sulphonic acid as catalyst and toluene as water-carrying agent. 72. The pure silica mesoporous molecular sieve(MCM-41) was modified on the surface by trimethylchlorosilane in polar solvent(acetone) and apolar solvent(toluene). 73. The experimental data obtained for the oxidation of toluene represents one of the most extensive data. 74. Red marabou flower can absorb the ammonia in xylene, toluene and consist in chemical fibber, paint. 75. In the workplace, their mothers had come into contact with such solvents as toluene, xylene, mineral spirits, isopropyl alcohol and trichloroethylene. 76. The 3500 organic vapour monitor was used as a new device to collect air samples containing benzene, toluene and o-xylene. 77. A description of the apparatus and its performance are presented. Preliminary experimental results on the photodissociation of toluene and benzene are given. 78. A moisture curable one component waterproof coatings was prepared from polyether polyols, petroleum asphalt, toluene diisocyanate, diluent and a compatibility modifier, etc. 79. The most representative in studying base on material of catalytic combustion was toluene. 80. Some organosilane polymers with high molecular weights have been synthesized by cocondensation of organosilicon dihalide monomers with sodium metal in toluene. 81. This paper presents a new method of regenerating activated carbon with toluene by microwave radiation. 82. Ethylene oxide(EO) tetrahydrofuran(THF)copolyether reacted with 2,4 toluene diisocyanate, and inert oligomeric cyclic ether(OCE) was extracted with diethyl ether. 83. Its branch chains having double bond can copolymerize with vinyl monomers (such as styrene or vinyl toluene) forming a thermosetting resin. 84. Two oxidation products of the reaction of C60 with O3 in toluene or dichlorobenzene were obtained in dependence on the amount of ozone absorbed by the solution and the reaction time. 85. Conclusion The method was simple, rapid and accurate, which was suit-able for the determination of free toluene diisocyanate in paint. 86. To effectively enhance the contraposition selectivity of chlorinating reaction the p-chlorotoluene was prepared by direct chlorination of toluene and chlorine gas in the presence of zeolite catalyst. 87. Toluene is used as azeotrope in the preparation of ketal. 88. The route for synthesizing the prepolymer based on toluene diisocyanate(TDI), trimethylol propane(TMP) and 1,4 butanediol(1,4 BD) in presence of catalyst has been described . 89. The kinetics of the vapor phase catalytic oxidation of toluene over V-H-3 catalyst has been studied in a vibrative internal recycle reactor. 90. Hydrogenation-dehydrogenation and acidic functions of hydrocracking catalysts were characterized by the use of model compounds of toluene and n-octane in a microreactor. 91. Ethyl cellulose was synthesized successfully in one-step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent. 92. Toluene diisocyanate (TDI) is one of the most useful kinds of isocyanateth that is produced by the method of phosgenation of amine. 93. The p-xylene selectivity of toluene disproportionation reaction on deactivated HZSM-5 increases with the increase of coke content. 94. The application result showed that the recovery rates of methyl ethyl ketone and toluene were higher than 95% attributed to the advanced technique design and the good adsorption materials adopted. 95. Nitration of toluene with fluorous biphase system was studied by using the perfluorous nonene as solvent. 96. The synthesis of ethyl cellulose was studied by one-step method, with toluene as diluent and orthogonal test was adopted. 96. try its best to gather and create good sentences. 97. The viscous oily prepolymers can be satisfactorily crosslinked with toluene diisocyanate and glycerine to form rubbery elastomers. 98. The chemicals formaldehyde, toluene and dibutyl phthalate are used in most nail polishes. 99. Determination of toluene of reformate by on-line NIR is described in the paper. 100. At the same time the company coating line, coating toluene recovery equipment. 101. Results Those samples ingredients easy to volatilize were mainly toluene, butanone, gasoline, ethyl acetate, acetone, etc. All of them were rated as low toxic for their acute toxicity. 102. Using 5-Norbornene-2,3-dicarboxylic anhydride(NA), and methanol as raw materials, toluene as water entrainer, phosphate as catalyzer, 5-norbornene-2,3-dicarboxylic acid dimethyl ester was synthesized. 103. The organic solvents can impact the activity strongly. The transesterification activity of enzyme in toluene, isooctane and pyridine has been investigated. 104. HZSM-5 zeolite catalyst was treated with aqueous H_3BO_3 and the catalytic activity of the prepared catalysts was investigated by the alkylation of toluene with ethanol. 105. The effects of the catalyst dosage and the preparation conditions of HZ-1 zeolite, for example, number of exchange times on the benzoylation of toluene were studied. 106. The N-methyl-2-pyrrolidone is chosen as polycondensation media and toluene as carrier of water. 107. And the excess volume of toluene - pyridine was measured with the dilatometer. 108. A polyisocyanate curing agent, which is mainly composed of toluene diisocyanate (TDI) trimer, was prepared in the presence of the base metal carboxylate K-1000. The reaction conditions were studied. 109. The di- octadecanol maleic was prepared with maleic anhydride and octadecanol as raw materials and p - toluene sulphonic acid as catalyst. 110. Ethyl 1,3 oxathiolane was synthesized by the reaction of 2 mercaptoethanol and propyl aldehyde in the presence ofp toluene sulfonic acid, with benzene as azeotropic dehydrating agent. 111. The synthetic process of a prepolymer based on benzoic acid modified hydroxyl alkyd resin and toluene diisocyanate (TDI) prepolymer and the coatings made from this prepolymer has been described. 112. The solubility curves of OGO in both solvents were measured. The growth conditions of crystals in toluene were discussed. 113. Diglycol diacetate had been obtained with sulfuric acid or toluene - p - sulfonic acid as catalyst in lab. 114. Solubility: Soluble in methanol, ethanol. Hardly soluble in toluene, xylene. 115. METHOD Under the same conditions of microwave power and extraction time, methanol, alcohol, toluene, acetone and hexamethylene were used as the extractant to carry out intermittent extraction. 116. Based on liquid chromatographic (LC) monolithic columns, the high-permeable monolithic columns can be applied in GC through changing the ratio of toluene and dodecanol. 117. It is readily soluble in toluene, MEK, acetone and other solvents commonly used in adhesive and coating systems. 118. The reason for leakage of condensate pipeline from toluene diisocyanate(TDI) flash tank to deaerator is analyzed and the solution is put forward. 119. Conclusion: This method has been successfully used for the detection of residual acetonitrile and toluene as organic solvents in fluvoxamine. 120. A aqueous polyurethane emulsion has been prepared based on polyether polyols and toluene diisocyanate. 121. 122. 123. 124. 125. 126. 127. 128. 129. 130. 130. try its best to gather and make good sentences. 131. 132. 133. 134. 135. 136. 137. 138. 139. 140. 141. 142. 143. 144. 145. |
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