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Catalyst and Auxiliary

The catalyst can change the reaction rate in the chemical reaction, and the composition and the quality of the catalyst can be kept constant after the reaction. The catalyst that accelerates the reaction is called the positive catalyst, slows down called Negative Catalyst or slow agent. It said catalyst is a positive catalyst for the general correction. This kind of catalyst in the industry, especially the organic chemical industry used more, and has great significance, Such as sulfuric acid prepared by contacting, ammonia, hydrolysis of the ester and polysaccharide, Oil Hydrogenation, etc. Commonly used catalysts are mainly metal, metal oxide and inorganic acid. If the catalyst is solid, the substance of the reaction is gas, to form a multi-phase catalytic reaction, this catalyst, sometimes called catalyst or contact agent. The catalyst is generally selective, it can only make a reaction or a certain type of reaction to speed up. But some reaction can be used for a variety of catalysts, such as the hydrogenation reaction can often be platinum, palladium, nickel, should be carefully chosen. In the catalytic reaction, the catalyst is often added cocatalyst known to enhance catalytic action of the catalyst. For example, iron is a catalyst in ammonia industry, adding a small amount of potassium and aluminum can enhance the catalytic effect of iron. The composition and weight of the catalyst and cocatalyst cannot change before and after the reaction. All of the above are inorganic catalysts. The enzyme is a protein, is very important organic catalyst.

There are many kinds of catalyst, catalyst and reaction system according to the phase of the classification, there are two types of homogeneous and heterogeneous catalysts. Heterogeneous catalysts most widely used, there are 3 kinds of gas, liquid and solid state, the variety and application of solid catalyst. The solid catalyst, which is made of metal (nickel, platinum, palladium, chromium, cobalt, titanium, vanadium, etc.) or metal oxide (copper oxide, vanadium pentoxide, lead oxide), is dispersed and deposited on the carrier in order to obtain a good dispersion effect and increase the specific surface area. The catalyst requires reliable activity, stability, selectivity, long working life, not easy to poisoning and over-burning, easy to regenerate. In order to improve the catalytic efficiency, the pure metal catalysts are made into alloy catalysts (such as nickel aluminium alloy) and composite catalysts (ZieglerNatta). The composite catalyst is composed of main catalyst and co-catalyst. In the new efficient catalysts also add other components. The production and development of high efficiency catalyst have promoted the development of polymer materials, and produced much polymer function and structure material ,which is new generation of high performance and high added value.

With the extensive application of catalyst and a number of new catalysts, we can make a lot of new chemical reactions to achieve industrialization, in order to provide an increasing number of chemical products; also can make some of the original chemical reaction conditions have been improved, in order to improve the production efficiency and product quality, make full use of resources. The important subject in the field of modern chemistry and chemical research is to select and develop more and better catalyst for the new generation. But the role of a catalyst is not beneficial to humans, such as combustion products of supersonic jet fuel as a catalyst can cause the stratosphere (10 to 50 km altitude) decomposition of ozone in the atmosphere, to the sun's ultraviolet absorption decreased, resulting in some areas of skin cancer patients increased. Is developing a new supersonic jet fuel, its combustion products will not become a catalyst,which will cause the ozone decomposition catalyst in the stratosphere.

Additives are added in the industrial and agricultural production, especially in the chemical production of some of the auxiliary chemicals, its role is to improve the production process, improve product quality and yield, or to give the product a unique application performance.

Additive are large class of important chemical in the production of auxiliary raw materials, they can give a special performance to product, improve use of finished products; and can accelerate the chemical reaction rate, improve product yield; they can save raw materials, improve processing efficiency. Additives are widely used in the chemical industry, especially organic synthesis, synthetic material processing and petroleum refining, pesticide, medicine, dye, paint and other industrial sectors. Additives can be divided into synthesized additives and processing additives. Synthetic additives are used in monomer synthesis and polymerization of a variety of auxiliary agents in resin, fiber, rubber, etc. They include catalysts, initiators, solvents, dispersants, emulsifiers, polymerization inhibitors, regulators, termination agents, etc. Processing aid refers to the auxiliary chemicals used in the manufacture of raw rubber, plastics processing, chemical fiber spinning and spinning process, including plasticizers, heat stabilizers, antioxidants, light stabilizers , flame retardants, blowing agents, lubricants, mold release agents, curing agents, accelerators, softeners, anti-scorching agents, surfactants, oils, fillers, etc. In these additives, many of them are dangerous chemicals, Such as benzoyl peroxide, azobisisobutyronitrile, hydrogen peroxide - ferrous blue, alkyl aluminum chloride, titanium and other initiators, catalysts are inflammable and explosive materials, should be required to "chemical Dangerous Goods Safety Management Regulations", for storage, transportation, operation and use.

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Structure Chemical Name CAS MF
METHOXYPOLY(ETHYLENE GLYCOL) ALDEHYDE METHOXYPOLY(ETHYLENE GLYCOL) ALDEHYDE
ANTIFOAM PE-L ANTIFOAM PE-L 9003-13-8 C10H22O3
POLY(2-HYDROXYPROPYL METHACRYLATE) POLY(2-HYDROXYPROPYL METHACRYLATE) 25703-79-1 C7H12O3
2,2,4-TRIMETHYL-1,3-PENTANEDIOL DIBENZOATE 2,2,4-TRIMETHYL-1,3-PENTANEDIOL DIBENZOATE 68052-23-3 C22H26O4
POLY(VINYLIDENE CHLORIDE-CO-VINYL CHLORIDE) POLY(VINYLIDENE CHLORIDE-CO-VINYL CHLORIDE) 9011-06-7 C4H5Cl3
PEG 400-6000 PEG 400-6000
POLY(VINYL CHLORIDE-CO-VINYL ACETATE-CO-VINYL ALCOHOL) POLY(VINYL CHLORIDE-CO-VINYL ACETATE-CO-VINYL ALCOHOL) 25086-48-0 C8H13ClO3
Polyethylene glycol 800 Polyethylene glycol 800
Tetrakis(hydroxymethyl)phosphonium sulfate urea polymer Tetrakis(hydroxymethyl)phosphonium sulfate urea polymer 63502-25-0 C5H16N2O9PS-
Fluorescent Brightener PS Fluorescent Brightener PS
Molecular sieve 10X Molecular sieve 10X
Polylactic acid Polylactic acid 26023-30-3 (C3H4O2)n
tris(5-tert-butyl-4-hydroxy-o-tolyl)butane tris(5-tert-butyl-4-hydroxy-o-tolyl)butane 35641-51-1 C37H52O3
PPG-12/SMDI COPOLYMER PPG-12/SMDI COPOLYMER 9042-82-4 (C15H22N2O2.(C3H6O)nH2O)x
CHELATING RESIN (IMINODIACETIC ACID) CHELATING RESIN (IMINODIACETIC ACID)
Polyquaternium-2 Polyquaternium-2 68555-36-2 C15H34Cl2N4O2
POLY(BENZYL METHACRYLATE) POLY(BENZYL METHACRYLATE) 25085-83-0 C11H12O2
ISODECYL BENZOATE ISODECYL BENZOATE 131298-44-7 C17H26O2
OCTYLATED DIPHENYLAMINE OCTYLATED DIPHENYLAMINE C20H27N
POLY(ISOBUTYLENE-CO-MALEIC ACID)  SODIU& POLY(ISOBUTYLENE-CO-MALEIC ACID) SODIU& 39612-00-5 C8H10O3
POLY(STYRENE-ALT-MALEIC ACID)  SODIUM POLY(STYRENE-ALT-MALEIC ACID) SODIUM 25736-61-2 C12H10O3
AMBERLITE IRA-400 AMBERLITE IRA-400 122560-63-8 C29H34ClN
METHOXYPOLYETHYLENEGLYCOLGLYCIDYLETHER METHOXYPOLYETHYLENEGLYCOLGLYCIDYLETHER
Polypropylene polyol diphenylmethanediisocyanate prepolymer Polypropylene polyol diphenylmethanediisocyanate prepolymer 9048-57-1 C15H10N2O2.H.(C3H6O)n.OH
Poly(acetaldehyde-resorcinol) Poly(acetaldehyde-resorcinol) 28410-56-2 C8H10O3
disodium 4,4'-bis[[4-anilino-6-[(2-carbamoylethyl)(2-hydroxyethyl)amino]-1,3,5,-triazin-2-yl]amino]stilbene-2,2'-disulphonate disodium 4,4'-bis[[4-anilino-6-[(2-carbamoylethyl)(2-hydroxyethyl)amino]-1,3,5,-triazin-2-yl]amino]stilbene-2,2'-disulphonate 27344-06-5 C42H47N14NaO10S2
Anilino-methyl triethoxy silicane Anilino-methyl triethoxy silicane C13H23NO3Si
Sodium salt of polynaphthalene sulphonic acid Sodium salt of polynaphthalene sulphonic acid 36290-04-7 C11H10O4S
Pigment carbon black Pigment carbon black
POLYIMIDE RESIN POLYIMIDE RESIN 62929-02-6 C35H28N2O7
POLY(ETHYLENE GLYCOL) BIS(2-ETHYLHEXANOATE) POLY(ETHYLENE GLYCOL) BIS(2-ETHYLHEXANOATE) 9004-93-7 C18H34O4
Antioxidant BLE Antioxidant BLE C15H15N
Antioxidant 998 Antioxidant 998
Antioxidant B900 Antioxidant B900
inorganic resin inorganic resin
Methyl  MQ resin Methyl MQ resin
POLY(1,4-BUTYLENE SUCCINATE), EXTENDED WITH 1,6-DIISOCYANATOHEXANE POLY(1,4-BUTYLENE SUCCINATE), EXTENDED WITH 1,6-DIISOCYANATOHEXANE 143606-53-5 C16H28N2O8
POLY(ETHYL ACRYLATE) POLY(ETHYL ACRYLATE) 9003-32-1 C5H8O2
Carfopol resin Carfopol resin
POLY(4-METHYL STYRENE) POLY(4-METHYL STYRENE) 24936-41-2 C9H10
(PHENYLSILSESQUIOXANE)-(DIMETHYLSILOXANE) COPOLYMER (PHENYLSILSESQUIOXANE)-(DIMETHYLSILOXANE) COPOLYMER 73138-88-2
C10E9 C10E9
Uvinul A Plus Granular Uvinul A Plus Granular
4-arM Poly(ethylene glycol) alkyne 4-arM Poly(ethylene glycol) alkyne
Novel 2-arM Methoxypoly(ethylene glycol) thio Novel 2-arM Methoxypoly(ethylene glycol) thio
α,ω-Diazido poly(ethylene glycol) α,ω-Diazido poly(ethylene glycol)
α-Acryloyl-ω-allyl poly(ethylene glycol) α-Acryloyl-ω-allyl poly(ethylene glycol)
α-Acryloyl-ω-Maleinidyl poly(ethylene glycol) α-Acryloyl-ω-Maleinidyl poly(ethylene glycol)
α-Carboxyl-ω-hydroxyl poly(ethylene glycol) α-Carboxyl-ω-hydroxyl poly(ethylene glycol)
α-Methacryloyl-ω-glycidyl poly(ethylene glycol) α-Methacryloyl-ω-glycidyl poly(ethylene glycol)
Poly(ethylene glycol) graft alkyne Poly(ethylene glycol) graft alkyne
α-Methacryloyl-ω-hydroxy poly(ethylene glycol) α-Methacryloyl-ω-hydroxy poly(ethylene glycol)
MCM-22 MCM-22
POLY(STYRENE-CO-MALEIC ACID), PARTIAL CYCLOHEXYL/ISOPROPYL ESTER, CUMENE TERMINATED POLY(STYRENE-CO-MALEIC ACID), PARTIAL CYCLOHEXYL/ISOPROPYL ESTER, CUMENE TERMINATED 160611-51-8 C30H42O5
40W resin 40W resin
Z-COTE HP 1 Z-COTE HP 1
2-arM Methoxypoly(ethylene glycol) succiniMidyl ester (Lysine) 2-arM Methoxypoly(ethylene glycol) succiniMidyl ester (Lysine)
4-arM Poly(ethylene glycol) aMine 4-arM Poly(ethylene glycol) aMine
α-MaleiMidyl-ω-hydroxyl Poly(ethylene glycol) α-MaleiMidyl-ω-hydroxyl Poly(ethylene glycol)
Mercaptopolyethylene glycol monomethyl etherPEG-thiol Mercaptopolyethylene glycol monomethyl etherPEG-thiol 401916-61-8 C7H18O4S
Polyethylene glycol di-p-toluenesulfonate, M.W. 1,000 Polyethylene glycol di-p-toluenesulfonate, M.W. 1,000
Macroporous resin AB-8 Macroporous resin AB-8
Phenyl silicone resin interMediate Phenyl silicone resin interMediate
AiO2 Nanoparticles AiO2 Nanoparticles
Diclofenac resinate Diclofenac resinate
Fluorescent brightener HER-1 Fluorescent brightener HER-1
TBBPA carbonate oligomer BC58 TBBPA carbonate oligomer BC58 71342-77-3 C22H15Br7Cl2O4
Phenol, 4-(1,1-dimethylpropyl)-, polymer with sulfur chloride (S2Cl2) Phenol, 4-(1,1-dimethylpropyl)-, polymer with sulfur chloride (S2Cl2) 68555-98-6 C11H16Cl2OS2
Poly(oxy-1,2-ethanediyl), .alpha.-(2-methyl-1-oxo-2-propenyl)-.omega.-(phosphonooxy)- Poly(oxy-1,2-ethanediyl), .alpha.-(2-methyl-1-oxo-2-propenyl)-.omega.-(phosphonooxy)- 35705-94-3 C6H11O6P
Amberlite LA-2 Amberlite LA-2 11128-96-4
Anoxomer Anoxomer 60837-57-2 (C15H16O2.C10H14O2.C10H14O.C10H10.C7H8O2.C7H8O)x
POLY(METHYL ACRYLATE) POLY(METHYL ACRYLATE) 9003-21-8 C4H6O2
TRIMETHYLOLPROPANE TRIS[POLY(PROPYLENE GLYCOL), AMINE TERMINATED] ETHER TRIMETHYLOLPROPANE TRIS[POLY(PROPYLENE GLYCOL), AMINE TERMINATED] ETHER 39423-51-3 C2H5C[CH2[OCH2CH(CH3)]nNH2]3
Massoniresil Massoniresil 96087-10-4 C20H24O8
DI-N-HEXYL PHTHALATE DI-N-HEXYL PHTHALATE 68515-50-4 C20H30O4
POLY(ACRYLIC ACID), SODIUM SALT-GRAFT-POLY(ETHYLENE OXIDE) POLY(ACRYLIC ACID), SODIUM SALT-GRAFT-POLY(ETHYLENE OXIDE) 27599-56-0 C5H8O3
IMINODIACETIC ACID RESIN IMINODIACETIC ACID RESIN 11139-85-8 NULL
peginterferon alpha-2a peginterferon alpha-2a
T-Lite SF-S T-Lite SF-S
4-arM Poly(ethylene glycol) succiniMidyl este 4-arM Poly(ethylene glycol) succiniMidyl este
Novel 2-arM Methoxypoly(ethylene glycol) Novel 2-arM Methoxypoly(ethylene glycol)
Y-shape poly(ethylene glycol) aldehyde Y-shape poly(ethylene glycol) aldehyde
Y-shape poly(ethylene glycol) glycidyl ether Y-shape poly(ethylene glycol) glycidyl ether
α-Allyl-ω-aMino poly(ethylene glycol) α-Allyl-ω-aMino poly(ethylene glycol)
α-Carboxyl-ω-azido poly(ethylene glycol) α-Carboxyl-ω-azido poly(ethylene glycol)
α-ForMyl-ω-aMino poly(ethylene glycol) α-ForMyl-ω-aMino poly(ethylene glycol)
α-Azido-ω-aMino poly(ethylene glycol) α-Azido-ω-aMino poly(ethylene glycol)
POLY(STYRENE-CO-MALEIC ACID), PARTIAL PROPYL ESTER, CUMENE TERMINATED POLY(STYRENE-CO-MALEIC ACID), PARTIAL PROPYL ESTER, CUMENE TERMINATED 160611-48-3 C24H30O4
HMQ silicone resin HMQ silicone resin
POLY(ETHYLENE-ALT-MALEIC ANHYDRIDE) POLY(ETHYLENE-ALT-MALEIC ANHYDRIDE) 9006-26-2 C18H18O9X2
ADIPIC ACID HEPTYLNONYL ESTER ADIPIC ACID HEPTYLNONYL ESTER 68515-75-3 C22H42O4
POLY(PROPYLENE GLYCOL) (300) MONOMETHACRYLATE POLY(PROPYLENE GLYCOL) (300) MONOMETHACRYLATE 39420-45-6 (C3H6O)nC4H6O2
POLY(2-ETHYLHEXYL METHACRYLATE) POLY(2-ETHYLHEXYL METHACRYLATE) 25719-51-1 C12H22O2
Polyquaternium-32 Polyquaternium-32 35429-19-7 (C9H18NO2.C3H5NO.Cl)x
Polyglycerine Polyglycerine 25618-55-7 C3H8O3
POLY(STYRENE-CO-ALPHA-METHYLSTYRENE) POLY(STYRENE-CO-ALPHA-METHYLSTYRENE) 9011-11-4 C17H18
ABS Resins ABS Resins 9003-56-9 C45H51N3X2
2-(Perfluoroalkyl)ethyl methacrylate 2-(Perfluoroalkyl)ethyl methacrylate 65530-66-7 C7H9F3O2
Nylon 12 Nylon 12 24937-16-4 (C12H23NO)n
AMBERLITE DP-1 AMBERLITE DP-1 64333-21-7
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