Showing posts with label Chemical. Show all posts
Showing posts with label Chemical. Show all posts

Chemical Engineering - A Convincing Argument


Professor: So...You are interested in studying Chemical Engineering?

Student: Mmmm. Dunno, all that pollution and stuff is pretty bad.

Professor: You think the industry is the source of most pollution then?

Student: Obviously.

Professor: You have done research into this?

Student: Hummph. No need to, everyone knows that is true.

Professor: Really? My research tells me differently. Tell me, what do you mean when you say pollution?

Student: Smells, poisoned ...







Keywords:



chemical engineer, engineering,chemical,chemistry







Article Body:



Professor: So...You are interested in studying Chemical Engineering?

Student: Mmmm. Dunno, all that pollution and stuff is pretty bad.

Professor: You think the industry is the source of most pollution then?

Student: Obviously.

Professor: You have done research into this?

Student: Hummph. No need to, everyone knows that is true.

Professor: Really? My research tells me differently. Tell me, what do you mean when you say pollution?

Student: Smells, poisoned streams and people dying.

Professor: And you think this all comes down to the chemical industry?

Student: Yes.

Professor: What about all the gases that come from your boiler at home? What about the gases that come out of your car? What about all the gases that come out of the power station to produce the electricity for your lights or air-conditioning at home? What about...

Student: Yeah, yeah, whatever.

Professor: You insult me by picking an argument, and then refusing to listen to an opposing view. I do not want you on my course anyway, move along and let the next person in please.

Student: What do you mean, you don’t want me? Huh?

Professor: Exactly that, move along now.

Student: OK, convince me that the people running those chemical plants are all good guys who produce no air pollution

Professor: That was not what I said. They do produce pollution, but much less of it than they used to and much less than any power station does. There are controls on what gases they can release into the air, and how much of each gas. The companies have to monitor their emissions and tell the government if they release too much.

Student: Very likely.

Professor: The government send inspectors around to check that the monitoring is in place. These officials make unannounced visits and if they find any missing data there had better be a good explanation.

Student: Mmmm

Professor: The companies are set five year targets to reduce their emissions below current levels. When they hit those targets, even if they hit them after two years, the government sets them another reduction target that has to be reached within another five years

Student: That’s not very fair.

Professor: It seems unfair at times, but the constant drive for reduced emissions makes the company invest in research and new processes to reduce the amount of waste gases it releases. It encourages the company to find uses for those waste gases.

Student: That sounds pretty good.

Professor: Technology is moving on all the time. Processes become more efficient and pollution is reduced. No industry can ever reduce its pollution to zero, though.

Student: Why not?

Professor: It’s a law of diminishing returns. 90% of the emissions can be removed at low cost. That leaves 10%. A further 9% can be removed at high cost, still leaving 1%. An extremely high cost is needed to remove the next 0.9%, but there is still 0.1% of the original amount. You can see that the removal cost is increasing, but the pollution reduction is becoming more and more marginal.

Student: Right. So is chemical engineering a good choice then?

Professor: It depends... You need to be good at solving problems, to be able to think laterally. You need to be able to work as part of a team, too.

Student: Right...

Professor: You also need to be interested in a career in management

Student: Huh, why’s that?

Professor: Technology moves along fast in this field and within ten years of gaining your degree your knowledge will be out-dated. There will be new graduates competing for the jobs you will have been doing, who have up to date knowledge. Most chemical engineers move into management after about twelve years in the job. Their background of engineering is still useful, but they recognize that they are no longer at the cutting edge.

Student: But management can be a good career to, can’t it?

Professor: It can, indeed. Are you interested in finding out more then?

Student: Definitely, and thanks.

Chemical etching - An innovative process for your all nameplate requirements


The article deals with chemical etching as a skilled printing process, method of chemical etching, and different types of metal etchings and varied uses of etched name plates or name tags.







Keywords:



Chemical etching, nameplate, nameplates, custom name plates, industrial name plates, personalized name plates, name tags, custom labels, identification tags, custom name tags







Article Body:



Chemical etching is a skilled practice of engraving your brand name on a nameplate. Texas Nameplate Company etches your emblem directly or indirectly on the metallic or non-metallic base and makes it more pliable to any lacerations. Chemical etching can be a substitute for embossing. The chemical etched nameplates are made by masking certain areas of metal by acid resistant material and then taking off desired amount of exposed material by acid. Widely custom name plates are etched on aluminum, stainless steel, brass, alloys etc and then baked after stuffing with varnishes for a perfect finish. The depth of industrial name plates etching varies from 0.0015 to 0.003 inches, depending on the height and stroke of letters and the type of metal or alloy. Along with chemicals gas and electric processes can also etch these wide ranges of metals.

Etching, also termed as ‘milling’ is of different types like laser etching, abrasive etching in which abrasives are used, photo chemical etching which is quite inexpensive and a high quality etching method. Photo chemically etched metals thus produced can be used as cost effective name tags, custom labels, panel boards, personalized name tags, industrial name plates for commercial uses and personalized name plate. Electro etching in which electric current is used instead of chemicals, dry etching does not use chemicals at all, Reactive ion etching which uses electric circuits and gas having chlorine or fluorine as iodized particles and vapor phase etching which also make use of reactive gases and many others to add to the list.

Chemical etching is preferred for practical applications and product identification tag. Name Tags made by chemical etching are durable items, which withstand even the harsh surroundings. Chemical etching makes your custom name tags withstand toughest
environments, high temperatures and extreme outdoor conditions. Thus solve your purpose year after year. Texas Nameplate Company compliments the etching with screen-printing to avoid splitting or other form of wear and tear. Various adhesives are also added to etched metal name tags according to your specifications for pasting or welding. You can use our chemical etching nameplates on truck, tankers and trailer, control panels, dials and gauges of aircrafts, asset and property plates; and operating and warning signs for numerous electronics, military vehicles, and machinery etc. Chemical etching is also used to create stencils for commercial art and woodworks.

You can always depend upon TNC for any queries regarding the etching of your nameplates and sort out material suiting your specific requirements.

Chemical Directory Can Come in Two Flavors


This kind of chemical directory allows finding a chemical by its molecular formula, common name, or other technical specification. It is a directory for those with technical familiarity of chemicals.







Keywords:



Businessmagnet Directory Ltd , Business To Business Directory







Article Body:



A chemical directory can come in one of two different flavors, technical and commercial.





Technically Oriented Chemical Directories





This kind of chemical directory allows finding a chemical by its molecular formula, common name, or other technical specification. It is a directory for those with technical familiarity of chemicals.





Once you specify a name, formula etc. the directory takes you to a page that lists the chemicals meeting the search criteria. Against each, supplier names are also given. You can then get more details of a particular supplier, or a particular chemical.





Links would also be available for getting an offer from a particular supplier for a chemical.





Such a technically oriented chemical directories would typically have other technical features, such as chemical calculators that calculates different properties such as molecular mass from a formula or other information.





Another valuable technical feature is a property explorer that calculates drug-relevant properties from valid chemical structures. This helps identify high-risk side effects of the structure. You can identify toxicity for example.





Commercially Oriented Chemical Directories





This kind of directory lists suppliers of particular chemicals in the conventional manner. For example, you can find suppliers for absorbents, acids and so on in alphabetical order. Some directories might also allow you to find suppliers in different countries.





Forwarding a request for quotation - RFQ - to suppliers is a facility that a chemical directory might offer. At least one directory allows you to send enquiries wholesale to many suppliers with just one RFQ form. You can select the companies you want the RFQ to be sent.





There are also chemical suppliers databases in print and computer readable media formats. You can buy these databases against payment. Alternatively, you might pay a monthly or such fee and access their online databases.





While some directories charge the buyers to access their databases of suppliers, others might allow free access to buyers and charge sellers for including their information. In the latter case, only those sellers who pay for inclusion might be included in the directory, i.e., it would be a less comprehensive directory than the other kind.





Regional Chemical Directories





Regional chemical directories seek to promote the chemical industries of different regions. It would also help buyers to find sources near them, or low cost suppliers from all over the world. For examples, lower cost manufacturers in, say, India and China can supply chemicals that meet specifications at lower costs.





Conclusion





The chemical industry is discovering new formulations continuously. The chemicals have different properties and effects. Many might be drugs that can have side effects along with specific curative properties.





To serve users in this industry, chemical directories need to incorporate some unique features. Thus you can find directories where you can search for chemicals by their molecular formula or CAS number, as well as by name.





The technically oriented directories might also provide chemical calculators and details of reactions based on the chemical structure.





Then there is the conventional chemical directory where you find suppliers for each kind of chemical, whom you can contact directly or through the directory publishers.