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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
Anticoagulation levelling agent Anticoagulation levelling agent
fluorescent whitening agent DMS fluorescent whitening agent DMS C40H38Na2N12O8
4,4'-Diisooctanyldiphenylamine 4,4'-Diisooctanyldiphenylamine C28H43N
Fluorescent brightener OBK Fluorescent brightener OBK
Polyethylene glycol distearate Polyethylene glycol distearate
Antioxidant B215,complex Antioxidant B215,complex
DIMETHYL POLYETHYLENE GLYCOL DIMETHYL POLYETHYLENE GLYCOL CH3O.(C2H4O)n.CH3
POLY(METHYL METHACRYLATE) POLY(METHYL METHACRYLATE) 9010-88-2 C10H16O4
VINYLIDENE CHLORIDE LATEX VINYLIDENE CHLORIDE LATEX 9002-85-1 C2H2Cl2
Polyoxyethylene dilaurate Polyoxyethylene dilaurate
POLY(VINYL METHYL KETONE) POLY(VINYL METHYL KETONE) 25038-87-3 C4H6O
POLYMETHACRYLATE POLYMETHACRYLATE 25087-26-7 C4H6O2
POLY(MALEIC ANHYDRIDE-ALT-1-OCTADECENE) POLY(MALEIC ANHYDRIDE-ALT-1-OCTADECENE) 25266-02-8 C66H114O9X2
CT-8 Resin CT-8 Resin
Epoxy embedding medium
		
	Epoxy embedding medium O**
POLYSTYRENE-BLOCK-POLY(ETHYLENE-RAN-BUTYLENE)-BLOCK-POLYSTYRENE POLYSTYRENE-BLOCK-POLY(ETHYLENE-RAN-BUTYLENE)-BLOCK-POLYSTYRENE 66070-58-4 C12H14
T-Lite SF T-Lite SF
Methyl vinyl MQ resin Methyl vinyl MQ resin
Fluorescent brightener RKH Fluorescent brightener RKH
Antioxidant 245 Antioxidant 245
Fluorescent brightener OB-C Fluorescent brightener OB-C
2-Propenoic acid, 2-methyl-, butyl ester, polymer with 2-(dimethylamino)ethyl 2-methyl-2-propenoate and methyl 2-methyl-2-propenoate 2-Propenoic acid, 2-methyl-, butyl ester, polymer with 2-(dimethylamino)ethyl 2-methyl-2-propenoate and methyl 2-methyl-2-propenoate 24938-16-7 C21H37NO6
Formaldehyde, polymer with 4-(1,1,3,3-tetramethylbutyl)phenol Formaldehyde, polymer with 4-(1,1,3,3-tetramethylbutyl)phenol 26678-93-3 C15H24O2
ACRYLONITRILE/BUTADIENE COPOLYMER ACRYLONITRILE/BUTADIENE COPOLYMER 9003-18-3 C7H9N
POLY(METHYL VINYL ETHER-ALT-MALEIC ANHYDRIDE), CROSS-LINKED WITH 1,9-DECADIENE POLY(METHYL VINYL ETHER-ALT-MALEIC ANHYDRIDE), CROSS-LINKED WITH 1,9-DECADIENE 136392-67-1 C17H26O4
POLY(DIALLYL PHTHALATE) POLY(DIALLYL PHTHALATE) 25053-15-0 C14H14O4
BIOPOL BIOPOL 29435-48-1 (C4H8O3)x
POLY(ETHYLENE GLYCOL) (N) MONOMETHACRYLATE POLY(ETHYLENE GLYCOL) (N) MONOMETHACRYLATE 25736-86-1 C24H46O12
RESORCINOL-FORMALDEHYDE RESIN RESORCINOL-FORMALDEHYDE RESIN 24969-11-7 C7H8O3
POLY(HEXADECYL METHACRYLATE) POLY(HEXADECYL METHACRYLATE) 25986-80-5 C20H38O2
POLY(UREA-CO-FORMALDEHYDE), BUTYLATED POLY(UREA-CO-FORMALDEHYDE), BUTYLATED 68002-19-7 C2H6N2O2
POLY(ETHYLENE-CO-VINYL ACETATE-CO-CARBON MONOXIDE) POLY(ETHYLENE-CO-VINYL ACETATE-CO-CARBON MONOXIDE) 26337-35-9 C7H10O3
POLY(STYRENE-CO-MALEIC ACID), PARTIAL ISOBUTYL ESTER POLY(STYRENE-CO-MALEIC ACID), PARTIAL ISOBUTYL ESTER 28571-95-1 C16H20O4
TRIETHYLENE GLYCOL MONOHEXADECYL ETHER* TRIETHYLENE GLYCOL MONOHEXADECYL ETHER* 4484-59-7 C22H46O4
CUCURBIT(8)URIL CUCURBIT(8)URIL 259886-51-6 C48H48N32O16
POLYETHYLENE GLYCOL(RG) POLYETHYLENE GLYCOL(RG)
POLY(ISOBUTYL VINYL ETHER) POLY(ISOBUTYL VINYL ETHER) 9003-44-5 C6H12O
POLY(CYCLOHEXYL METHACRYLATE) POLY(CYCLOHEXYL METHACRYLATE) 25768-50-7 C10H16O2
Polyquaternium-33 Polyquaternium-33 69418-26-4 C11H21ClN2O3
POLYQUATERNIUM-1 POLYQUATERNIUM-1 75345-27-6 C33H70N5O6X2.5Cl
Antioxidant SP-P Antioxidant SP-P
Fluorescent Brightener DCB Fluorescent Brightener DCB C15H14ClN2O2S
Fluorescentbrighteningagent199 Fluorescentbrighteningagent199 58449-88-0 C24H16N2
4-ArM poly(ethylene glycol) Methacrylate 4-ArM poly(ethylene glycol) Methacrylate
Methoxypoly(ethylene glycol) isocyanate Methoxypoly(ethylene glycol) isocyanate
Y-shape poly(ethylene glycol) acrylate Y-shape poly(ethylene glycol) acrylate
Y-shape poly(ethylene glycol) carboxylic acid Y-shape poly(ethylene glycol) carboxylic acid
α-Acryloyl-ω-azido poly(ethylene glycol) α-Acryloyl-ω-azido poly(ethylene glycol)
α-Acryloyl-ω-succiniMidyl poly(ethylene glycol) α-Acryloyl-ω-succiniMidyl poly(ethylene glycol)
α-Carboxyl-ω-aMino poly(ethylene glycol) α-Carboxyl-ω-aMino poly(ethylene glycol)
α-Carboxyl-ω-Methacryloyl poly(ethylene glycol) α-Carboxyl-ω-Methacryloyl poly(ethylene glycol)
Polyethylene glycol di-p-toluenesulfonate, M.W. 3,400 Polyethylene glycol di-p-toluenesulfonate, M.W. 3,400
Poly(ethylene glycol) graft glycidyl ether Poly(ethylene glycol) graft glycidyl ether
α-SucciniMidyl-ω-hydroxyl poly(ethylene glycol) α-SucciniMidyl-ω-hydroxyl poly(ethylene glycol)
Base Oil Base Oil
THIAMPHENICOL THIAMPHENICOL 2393-92-2 C14H18Cl2N2O6S
Special solvent oil Special solvent oil
Antioxidant 2088 Antioxidant 2088
Complex antioxidant Complex antioxidant
Antioxidant SP-C Antioxidant SP-C
Octyl-phenolic curing resin Octyl-phenolic curing resin
Molecular sieve ZSM-5 Molecular sieve ZSM-5
Thermoset acrylic resin Thermoset acrylic resin
Fluorescent brightener PMB Fluorescent brightener PMB
Fatty acids, C18-unsatd., dimers, reaction products with polyethylenepolyamines Fatty acids, C18-unsatd., dimers, reaction products with polyethylenepolyamines 68410-23-1
STYRENE MALEIC ANHYDRIDE COPOLYMER STYRENE MALEIC ANHYDRIDE COPOLYMER 31959-78-1 (C8H8.C5H6O4.C4H2O3)x
Antioxidant ZYB215,ZYB225 Antioxidant ZYB215,ZYB225
(chloromethyl)-oxiran reaction products with polyethylene glycol (chloromethyl)-oxiran reaction products with polyethylene glycol 72207-80-8 (C3H5ClO.(C2H4O)nH2O)x
Benzenesulfonic acid, dimethyl-, polymer with formaldehyde, sodium salt Benzenesulfonic acid, dimethyl-, polymer with formaldehyde, sodium salt 70788-40-8 C9H12NaO4S
POLY(1-DECENE) POLY(1-DECENE) 68037-01-4 [CH2CH[(CH2)7CH3]]n
Polyethylene glycol monomethyl ether tosylate Polyethylene glycol monomethyl ether tosylate 58320-73-3 C10H14O4S
α-Azido-ω-hydroxyl poly(ethylene glycol) α-Azido-ω-hydroxyl poly(ethylene glycol)
α-ForMyl-ω-Mercapto poly(ethylene glycol) α-ForMyl-ω-Mercapto poly(ethylene glycol)
α-Methacryloyl-ω-aMino poly(ethylene glycol) α-Methacryloyl-ω-aMino poly(ethylene glycol)
Fluorescent brightener  121 Fluorescent brightener 121 12224-11-2 C15H14ClN3O2S
Polyethylene glycol 1800 Polyethylene glycol 1800
Polyethylene glycol 15000 Polyethylene glycol 15000
Polyethylen glycol 1000 Polyethylen glycol 1000 HOCH2(CH2OCH2)nCH2OH
tetraoctyl pyromellitate tetraoctyl pyromellitate C42H70O8
N,N'-Di-2-napthyl-p-phenylene-diamine N,N'-Di-2-napthyl-p-phenylene-diamine C26H20N2
Release agent No.8 Release agent No.8
Styrene-indene resin Styrene-indene resin
POLY(PROPYLENE-CO-ETHYLENE) POLY(PROPYLENE-CO-ETHYLENE) 9010-79-1 (C3H6.C2H4)x
FEMA 2501 FEMA 2501 8023-91-4
Medioresil Medioresil 40957-99-1 C21H24O7
TS-1 TS-1
Liquid Terpene Resin Liquid Terpene Resin
Tinosorb S Tinosorb S
Methoxypoly(ethylene glycol) alkyne Methoxypoly(ethylene glycol) alkyne
Novel 2-arM Methoxypoly(ethylene glycol) aldehyde Novel 2-arM Methoxypoly(ethylene glycol) aldehyde
Y-shape poly(ethylene glycol) aMine Y-shape poly(ethylene glycol) aMine
Y-shape poly(ethylene glycol) MaleiMide Y-shape poly(ethylene glycol) MaleiMide
α-Acryloyl-ω-glycidyl poly(ethylene glycol) α-Acryloyl-ω-glycidyl poly(ethylene glycol)
α-Allyl-ω-carboxyl poly(ethylene glycol) α-Allyl-ω-carboxyl poly(ethylene glycol)
α-ForMyl-ω-succiniMidyl poly(ethylene glycol) α-ForMyl-ω-succiniMidyl poly(ethylene glycol)
Polyethylene glycol di-p-toluenesulfonate, M.W. 8,000 Polyethylene glycol di-p-toluenesulfonate, M.W. 8,000
Organosilicone resin Microspheres Organosilicone resin Microspheres
ETHYLENE/ETHYL ACRYLATE COPOLYMER ETHYLENE/ETHYL ACRYLATE COPOLYMER 9010-86-0 C21H36O6X2
POLY(2-ETHYLHEXYL ACRYLATE) POLY(2-ETHYLHEXYL ACRYLATE) 9003-77-4 C11H20O2
Butyl acrylate resin Butyl acrylate resin 9003-49-0 C7H12O2
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