China Chemical Auxiliary & Catalyst - Page 4

1. Brief introduction

The rare-earth elements (REE) are the elements Sc (scandium) Y (yttrium) and the 15 lanthanide elements with atomic numbers 57 through 71, namely, La (lanthanum), Ce (cerium), Pr (praseodymium), Nd (neodymium), Pm (promethium), Sm (samarium), Eu (europium), Gd (gadolinium), Tb (terbium), Dy (dysprosium), Ho (holmium), Er (erbium), Tm (thulium), Yb (ytterbium), and Lu (lutetium).

2. The application of rare-earth

In the traditional industrial field, rare-earth is mainly used in agriculture, metallurgy, petrochemical industry, glass, ceramics and electric light industry. With the research of rare-earth developing, rare-earth is gradually applied in high and new technology industry, used as luminescent material in display, magnetic material, hydrogen storage material, laser material, high temperature superconducting material, fine ceramic and catalyst.

3. The application of rare-earth in automotive exhaust gas

With the growth of automotive quantity, the exhaust emission becomes the flowing resource of pollution, which is a serious harm for atmosphere. To deal with the emission exhaust, we generally adopt to fit purifying equipment. The key of the purifying equipment is catalyst. At present, the widely used catalyst is normally composed by noble metal Pd, Pt, Rh. Though this kind of catalyst posses the advantage of high activity, favorable thermal stability, long service life, its cost is expensive. Since put forward of using catalyst with rare-earth in purifying off-gas, its own catalytic capability has attracted all catalyst researchers attention. Such kind catalyst has high activity, favorable thermal stability, long service life as noble metal catalyst; And the rare-earth can improve the activity of catalyst, storage and release the oxide, resist the lead poisoning, furthermore, this kind catalyst is not expensive...

Our company freshly have successfully explored rare-earth complex catalyst, which is a reasonable formula of rare-earth and zirconic oxide. Its particulate is limited about one micron. Because the fine structure of the coat has been controlled, deformation of alumina in high temperature dispersibility of the noble metal, agglomeration of the noble metal particulate s deformation have been improved greatly. With the rare-earth complex catalyst, the catalytic converter can reach Euro3 and Euro4 emission standard, meanwhile, the quantity of noble metal is decreased, which evidently reduce the cost for company. In addition rare-earth complex catalyst has other advantages as follows:

(1) avoid the atmosphere pollution of NOx due to the traditional progress of sintering the rare-earth nitrate.

(2)simplify the coat technics.

(3) raise the conversion temperature of r-alumina to ?-alumina

Except for purifying off-gas, rare-earth complex material is also applied to deal with industrial exhaust gas and purify the indoor air.

Chemical Name: Glycerol Monostearate

Abbrev: GMS

Technical Indexes:

Appearance: White flakes/lump/powder solid

Iodine Value gl2/100g: d2.0

Freezing Point: e54.0

Dissociated Acid (stearic acid): d2.0

Arsenic (As)%: d0.0001

Heavy Metal (Pb)%: d0.0005

Content %: 40/38/32

Color and Luster gl2/ml: d15

Iron (Fe)%: d0.002

Property and Application:

It is a kind of additive and emulsifier, which is the most widely used in grease chemical industry and daily chemicals industry. Its hydrophile lipophile balance (HLB Value) is 3.6-4.2. It is oil soluble. Besides emulsification, it also has function to re

It is a wax solid with white or light yellow color. It is used as emulsifier and surfactant in food or cosmetics, and also is lubricant of PVC transparent grain. It dissolves in hot grease, paraffine, ethanol, chloroform, acetone and aether, but is insolu.

It is mainly applied in the following fields:

1, Additive in food candy, emulsifier to add in chocolate, margarin, ice cream etc. Or surfactant.

2, Material to make cosmetics, skin care balsam, cold cream, hair oil and etc.

3, Excellent emulsifier for drug ointment.

4, Lubricant for plastic processing.

Packing: 25 kg / weaving bag (carton/paper bag)

Decoloring powder: 155.0%min. (tech grade) 180.0%min. (food grade)

Activity Degree(m mol/kg): 180min.

Packing: 25kg net PP woven bag outer with PE bag inner

Usage:

Food grade: It's widely used in the decolorization of animal and vegetable oil. It can absorb and eliminate the pigment, aflatoxin and the carcinogenic substance of 3-4 benzpyrene in vegetable oil, in addition, it has strong ability of oil decolorization, high speed of filtering oil and low oil retention of filter cake.

Tech grade: It is widely used in absorption and refinement of lubricant, paraffin wax and Vaseline. It can absorb and eliminate mineral materials ans pitch, neutral colloid, sulfide and olefinenaphthenic acid in lubrication to improve the durability and photo stability of the lubricant and to increase the ability of corrosion-resisting.

Our modified starch including many modle is used in papermaking, such as cationic starch, oxidized starch and so on.

LX-210 is a high efficiency corrosion inhibitor aim at two kinds corruption medium of H2S and HCL. Along with sulfur and salt content in crude oil move up continuously, condensation system of crude oil tower etch strictness increasingly, this will influence production and oil quality. On the condition of cooperating inject ammonia or neutralizing corrosion inhibitor, High Efficiency Corrosion Inhibitor LX-210 can formed fine and close protective foil on the face of metal, prevent corruption medium get in touch with metal, thereby to reach the goal of restraining corruption.

KT8803B Poly-?-olefin Pour Point Depressant

KT8803C Poly-?-olefin Pour Point Depressant

KT8602 PMA Polymethacrylate

Highly active, instant fermentation rate

Good fermentation ability

Fine fungus, white color on finished products

Providing high capacity desiccant -silica gel sachets in a heat-sealed non-woven fabric. They are available in a wide range of size suitable for use with a wide range of application. If you are interested in them, please feel free to contact us. Thank you.

We provide silica gel, mixed gel, moulding gel, gel additives. Quality of products is in line or beyond the domestic and foreign producers.We have successfully developed series of silica gel products in recent years. Research workers have made a breakthrough in the fields of high tear resistance and transparent properties of air phase gel, super high or low hardness and functional mixed gel, especially a major breakthrough for vulcanized silicone rubber under room temperature. Thus a new RTV-( ) products series has come out. Tests shows that its prominent properties reach the advanced level of the same type of products domestically or internationally made. The newly developed silicone rubber has the following features:

- Environment friendly products

- Non-poisonous, non-odour

- Transparency without colour change

- Higher tear strength and excellent electrical properties

The brand spray paint is made of acrylic acid with high technology. It is easy applying, good dispersing with advantages of weather-resistant, knock bearing, toughness, tight adherence and color durable. Among the serials, special mentioned are. Plate-chrome paint, nice mirror effect, and fluorescent paint can change UV into seeable light being luminous under super ultraviolet ray.