2890633688

   产品分类 PRODUCTS
XRF样品粘结剂
    发布时间: 2019-08-14 20:14    

美国Chemplex公司专业从事样品前处理设备、XRF耗材研发和生产,是X荧光光谱仪(XRF)配件耗材领域的全球知名厂商。

Grinding, Blending And Pelletizing Additives

● Improve powdered sample preparations

● Reduce particles to uniform size and distribution
● Promote sample homogeneity
● Transform powders into “Plasticized” pellets
● Resolve sample pellet chipping or flaking


Chemplex® additives are formulated with the proper balance of abrasive and lubricious constituents that promote the grinding and pelletizing processes. The resulting sample pellets when the Chemplex® additives are used are characterized with unblemished smooth surface appearing “plasticized”. The Chemplex® additives are available in a variety of formats that make them very simple to use: bulk powder, pre-weighted ¼ and ½ gram tablets. The Chemplex® additives also work well as a diluting agent but the effects of dilution can be minimized by using the least amount of additive.

Grinding/Briquetting Additive Profiles:

Additive

Chemical Composition

X-Ray Mix®

C: 48.7%; O: 42.6%; H: 8.1%; B: 0.6%

SpectroBlend®

C: 81.0%; O: 2.9%; H: 13.5%; N: 2.6%

Boric Acid

O: 77.6% H: 4.9%; B: 17.5%

 Note: Some additives may contain trace elements that may potentially interfere with a given analysis. It is suggested that a "Blank" is run to evaluate the presence and interference level prior to an analytical investigation.

 ® X-Ray Mix, SpectroBlend and Chemplex are registered trademarks of Chemplex Industries, Inc.

Generally, samples deficient in hard abrasive particles evade the effects of grinding and generally tend to agglomerate. The underlying sample particles protected by the outer layers of a sample elude comminution resulting in an increase in heterogeneity. Many other types of samples are comprised of very hard particles, deficient in cohesiveness that tends to resist pelletizing and exhibit fissure development, chipping or flaking apart during handling or analysis. The lubricious constituents of Chemplex® additives impart binding to the sample and conduciveness to briquette formation. The resultant sample pellets are characterized with unblemished smooth surfaces appearing “plasticized.” Frequently, the metallic grinding media is influential to the comminution process. The frictional heat generated by the grinding media tends to soften the sample creating a “caking” effect shielding the underlying mass from further comminution. The recommended starting point is to evaluate a 1 to 2-1/2 wt.% additive-to-sample weight (e.g. 0.1 to 0.25gm additive to 10gm sample). Adjust the additive-to-sample weight ratio until the optimum grinding and briquetting combination is achieved. Reference materials should similarly be prepared for matrix compatibility.

TYPICAL APPLICATIONS

Cement ■ Raw Mix ■ Sinters ■ Slags ■ Catalysts ■ Ores ■ Refractories ■ Fertilizers ■ Soil ■ Phosphate Rock ■ Oxides ■ Alumina ■ Bauxite ■ Carbonates ■ Silicates ■ Organics ■ Inorganics ■ And many other types of sample substances exhibiting difficulty in particle size reduction, distribution and briquetting

Additive

Prominent Characteristics

X-Ray Mix®

General purpose grinding agent. Balanced for abrasiveness and lubricity to aid in grinding dissimilar particles of moderate hardness for relatively short times. Highly “plasticizes” and firmly bonds samples together under briquetting pressure. Available in pre-weighed ¼ and ½ gm tablets for ease of dispensing.

SpectroBlend®

 

A 44µm powder well suited for blending and as a diluent for high concentrations. Well balanced with abrasive and lubricious constituents for grinding most sample materials emphasizing difficult-to-process samples requiring long grinding cycles in metallic comminution vials or dishes. Resistant to degradation by thermal and irradiation exposure. Samples have “plasticized” surfaces. Available in bulk powder and ½ gm pre-weighed tablets for ease of dispensing.

Boric Acid

Abrasive substance for processing samples with strong re-welding tendencies. Sample pellets fairly to moderately bond together. Frequently used in conjunction with other additives to impart increased abrasiveness to the grinding process.


订货信息:


Cat.No.
Description
600
X-Ray Mix®, Powder; 1lb per bottle
625
X-Ray Mix®, 1/4gm Tablets; 500 tablets per bottle
650
X-Ray Mix®, 1/2gm Tablets; 500 tablets per bottle
660
SpectroBlend®, 44µm Powder; 1lb per bottle
690
SpectroBlend®, 1/2gm Tablets; 500 tablets per bottle
750
Boric Acid,1/2gm Tablets; 1000 tablets per bottle