CHA As Corrosion Inhibitor-manufacture,factory,supplier from China

Cyclohexylamine (CHA) is a primary amine, can be miscible with water with infinite ratio, the molecule is small, easy to adsorb on the metal surface, its shielding effect is better than long chain primary amine and secondary amine, so it can effectively prevent the invasion of corrosive ions, thereby improving corrosion resistance, especially the ability to inhibit corrosion.The corrosion inhibition of 304 stainless steel by cyclohexylamine in sodium chloride medium was studied in detail.

A vapor phase corrosion inhibitor preparation method, including the following steps :a. Dispersing montmorillonite in deionized water, beating, stirring, and then taking the suspension of the solution to add morpholine, heating the solution to evaporate and precipitate crystals.b. Add formaldehyde to the solution in Step a and let it stand; add dicyclohexylamine and let it stand; then add the mixed solution of benzoic acid and acetone to the solution and let it stand to generate white slurry.

A sulfonate of cyclohexylamine; used as an artificial flavoring in food, beverages, and medicine. Also used as an acid gas absorber. Used as a pH regulator for boiler feed water. Cyclohexylamine is a volatile substance that can easily reach the whole system after dosing.If pH is lower than 8.5, the treatment effect of cyclohexylamine is not good. Synthetic desulfurizer, rubber promoter, dye, antistatic agent, corrosion inhibitor, pesticide fungicide, insecticide and other intermediates. Used as boiler water treatment agent, corrosion inhibitor, rubber promoter, etc.

At present, amine salt type corrosion inhibitors are widely used and have superior effects. Through physical and chemical analysis of the sample, ultraviolet spectrum, infrared spectrum, nuclear magnetic resonance spectroscopy and ion chromatography and other series of analysis and  prediction to determine the role of different ions of dicyclohexylamine salt corrosion inhibitor in steel corrosion analysis, and finally determined that the solid sample may be dicyclohexylamine nitrite. 

Cyclohexylamine, an organic compound with the chemical components of c6h13n, is a drab to yellow liquid, soluble in water and miscible in most organic solvents. It is mainly used as a solvent, and can also be used to prepare desulfurizer, rubber antioxidant, vulcanization accelerator (CZ), cyclamate, medical raw materials, chemical additives for plastics and textiles, boiler feed water treatment agent, metal corrosion inhibitor, emulsifier, preservative, antistatic agent and latex coagulant. 

Cyclohexylamine, an organic compound with the chemical formula of C6H13N, is a colorless to yellow liquid, soluble in water and miscible in most organic solvents. UsageIt is mainly used as solvent, and can also be used to prepare desulfurizer, rubber antioxidant, vulcanization accelerator, chemical additives for plastics and textiles, boiler feed water treatment agent, metal corrosion inhibitor, emulsifier, preservative, antistatic agent, latex coagulant, petroleum additive, bactericide, insecticide and dye intermediate.SpecificationProjectItemBest gradeFirst grade    

To explore the application value of ion chromatography in the detection of cyclohexylamine in workplace air. Workplaces containing cyclohexylamine in the production of raw materials were selected as sampling sites, and the content of cyclohexylamine in workplaces was detected by ion chromatography. At the same time, the precision and recovery rate of ion chromatography, desorption efficiency, sampling efficiency and other cation interference characteristics were analyzed.

DCHA at home and abroad is usually a by-product of CHA production. In the process of CHA synthesis by aniline hydrogenation, about 10% of DCHA can be obtained by by-product. In addition, according to the different catalysts, the yield of DCHA prepared by aniline hydrogenation can reach up to 70%, and the yield of cyclohexylamine (CHA) is 30%.Benzene, cyclohexane, cyclohexanol, N-cyclohexylcyclohexamine, phenylcyclohexylamine and other by-products will be generated in the reaction.

The invention uses nitro-benzene and hydrogen as raw materials. Adding solvent, nitro-benzene and catalyst into the reaction kettle, controlling the reaction pressure of 0.5 ~ 4MPa, reaction temperature of 60 ~ 160℃, reaction for 2 ~ 8h, cyclohexylamine and dicyclohexylamine are obtained, and the catalyst used is Pd/CNTs catalyst or PD-Ni /CNTs catalyst. 

Silicon tetrachloride which chemical formula is SiCl4 is an inorganic compound, because silicon chloride only exists in the form of SiCl4, silicon tetrachloride is also directly called silicon chloride. The appearance of this product is light yellow liquid, and the appearance of high-purity silicon tetrachloride is colorless and transparent liquid, volatile, with special odor, toxicity and corrosion. Silicon tetrachloride can be miscible with benzene, chloroform, ether, carbon tetrachloride and other organic solvents. It can be hydrolyzed in humid air and react violently with water.

A method of cyclohexylamine catalytic production of biodiesel with prickly ash seed oil as raw material is described as follows: prickly ash seed oil is mixed with methanol and the catalyst cyclohexylamine.

Distillation is the use of SiCl4, and the difference between the relative volatility of impurities components, through several partial gasification and partial condensation process, to achieve the separation of mixed liquid, so as to obtain high purity silicon tetrachloride products.

Devices that use tail gas to recover cyclohexylamine are characterized in that they include: spray tower, circulating pump, condenser, defogger, photooxygen catalytic oxidizer, ozone treatment device, blower, chimney. Described in the circulating pump and spray the bottom connection, as described in the other side of the circulating pump are connected to the condenser, the condenser and the upper spray tower connection, described in the spray tower are connected to the top of demister, described in the mist bottom and photocatalytic oxidation, photocatalytic oxidation is described, ozone

The basic principle of solid adsorption is adsorption separation based on the different polarity of chemical bonds of each component in a compound. Silicon tetrachloride is a symmetric molecule with no dipole moment. In contrast, the contained impurities such as BCl3, AlCl3, FeCl3, PCl3, etc. are asymmetric molecules with considerable dipole moments, which strongly tend to form additive chemical bonds and are easily adsorbed by the adsorbent.

Nitrocyclohexane reduction method: This method takes nitrocyclohexane and hydrogen as raw materials, using reducing agent to generate cyclohexylamine, because nitrocyclohexane raw materials are difficult to obtain, this method is basically eliminated. Moreover, the process has some defects, such as low one-way conversion of aniline and poor selectivity of dicyclohexylamine.

Colorless liquid with smelly odor. it'll decompose with water and dissolve in carbon disulfide, carbon tetrachloride, chloroform, benzene, and plenty of others. flammable, can spontaneously ignite within the air. toxic!It could go through an addition response with olefins.The hydrosilylation response of ethylene is as follows: cl3si-h + h2c=ch2 → cl3si-ch2-ch3 .

Colorless liquid with stinky scent. it's going to decompose with water and dissolve in carbon disulfide, carbon tetrachloride, chloroform, benzene, and lots of others. flammable, can spontaneously ignite in the air. poisonous!It may undergo an addition reaction with olefins.The hydrosilylation reaction of ethylene is as follows: cl3si-h + h2c=ch2 → cl3si-ch2-ch3 .

It is obtained by catalytic hydrogenation of aniline and can be divided into atmospheric pressure method and pressure method. In addition, cyclohexamine can be prepared by catalytic ammonolysis of cyclohexane or cyclohexanol, reduction of nitrocyclohexane, and catalytic ammonolysis of cyclohexanone in the presence of hydrogen.The refining process often contains impurities such as aniline and water.

High temperature hydrogenation of silicon tetrachloride is an important method to treat silicon tetrachloride as a by-product of polysilicon. High temperature hydrogenation is silicon tetrachloride and hydrogen as raw materials, heated by 1200 ~ 1250℃ graphite heater, thermal reduction reaction to produce  trichlorosilane. The advantages of the process are that the whole system is closed circulation, suitable for continuous and stable operation; Trichlorosilane products of high purity, need to distillation links less.

A high purity trichlorosilane differential pressure coupled distillation process, using the high pressure tower top steam as the heat source of the low pressure tower reboiler, realized the energy integration and process optimization. Chemical simulation software PRO/Ⅱ8.1 was used to simulate the design parameters of two columns of high purity trichlorosilane differential pressure coupled distillation process and three columns of high purity trichlorosilane differential pressure coupled distillation process.

SiCl4 is one of the most important inorganic silicon compounds, is a colorless, transparent, flowing smoke liquid, with suffocating odor, soluble in benzene, ether, chloroform and other most organic solvents. Silicon tetrachloride is a volatile liquid with strong asphyxiating odor. It can be used as raw materials for the production of gaseous silica, high purity silicon and organosilicide. The upstream of the silicon tetrachloride industry chain is the raw material market, mainly silicon powder, ferrosilicon, hydrogen chloride, etc.

The mixture of trichlorosilane and polysilicon, which is a by-product of the recombination from the bottom of the distillation column in the production of trichlorosilane and polysilicon, was used as raw material to prepare silica by gas phase hydrolysis. The effects of gasification temperature, flow rate and flow ratio of water vapor and chlorosilane mixture on physicochemical properties of the products were investigated.

By controlling the parameters in each step, such as time, temperature, pressure, etc.The yield of cyclohexylamine products is high, the product yield is more than 99%, the quality is stable, the yield is high, the production capacity is large, the side reaction is less, and a small amount of by-product dicyclohexylamine in the reaction can be recovered and purified, and the added value of the products can be increased.

Chlorine hydrogenation technology is to add HCl on the basis of low temperature hydrogenation technology to further reduce the reaction temperature and increase the yield of trichlorosilane. Chlorine hydrogenation reaction principle is as follows: 2SiCl4(g)+H2(g)+HCl(g)+Si(s)=3SiHCl3(g). Hydrogen plasma is generated by hydrogen discharge, which is passed into the reactor to react with silicon tetrachloride gas. Since hydrogen is dissociated into hydrogen atoms, the reactivity is greatly increased and it can easily react with silicon tetrachloride to form trichlorosilane.