Please be careful when editing not to overwrite the work of others without commenting on why you're doing so. I am again changing alcaloid to alkaloid and a few other things like that, because the former links goes nowhere while the latter one contains the page you intended to link. DMacks 16:00, 12 May 2006 (UTC)[reply]
You had a question about sulphur. The thing is indeed a bit disputable, the convention is, the language used is the language that is used when the article is started (so when a user writing in UK-EN is starting the page, then that spelling should be continued, and vice versa), except when there is a clear reason why a certain spelling is chosen (and well, it does not matter, the other spelling should be a redirect anyway, so you should get to the correct page). With naming of compounds and elements the IUPAC spelling is chosen (hence, for some pages a rename towards the IUPAC recommended spelling should be performed, leaving other spellings to a redirect). By the way, I see no reason to change a pagename because one spelling gets more hits on Google (or whereever) than another. I hope this answers your question. --Dirk BeetstraTC 21:32, 29 July 2006 (UTC)[reply]
Thank you Dirk about this answer, if I had not already done so on your user page, and I am writing again here because I read your pourparler on your page on distillation. I accept your view on the spelling question as reasonable, but cannot accept the contention of V8rik to spell everything à l'americain just because allegedly they are in the majority. I have since your note had a look at what IUPAC says and they recommend sulfur and why should we not accept that? After all, they are international - we think, but they say that Al is definitely aluminium, and not aluminum (I've never known anybody using this latter, but they might in the US) However, I have not checked on Al2O3, alumina, but I presume that that is another matter. Inorganic chemist ought to have written about that, but I have not found it on Wiki. Could I be wrong? Thanks again LouisBB 04:31, 1 December 2006 (UTC)[reply]
Thank you for the feedback on my talk page. The current definition is I think a bit verbose but ultimately accurate enough. Few, if any, textbooks attempt a concise definition, so we have our work cut out for us.
In general, organic chemistry can be satisfactorily described as the chemistry of covalent carbon compounds. This nicely excludes compounds like carbides, which are ionic, but unfortunately is still overly broad, as it encompasses graphite and diamond as well as CO2, none of which are generally thought of as organic compounds. The methane definition is one that I head a while back that I thought best described this branch of chemistry without requiring a tabulation of exclusions.
Think about simple organic compounds. Chloromethane, for example, is a direct halogenation product of methane (this reaction can be carried out with Cl2 and UV light). This can then be readily converted to methanol, for example, which could then be trivially oxidized to formic acids, formates, etc. Such derivatives also formally lead to new C-C bonds, giving rise to higher organic molecules. On the other hand, graphite cannot be formally derived from methane. CO2 is derived by combustion, which is not an "ordinary" reaction in chemistry (heck, it even gets its own special table of reaction enthalpies). For these reasons I believe the methane derivative definition to be the best, albeit perhaps unnecessarily technical.
Finally, I am unclear on which properties paragraphs concern you. Could you clarify this point? Thanks! Shultzc 09:51, 26 October 2006 (UTC)[reply]
Wikipedia:Userboxes at the bottom is a list of current ones and the page describes they style of them.--Jimktrains 20:07, 5 November 2006 (UTC)[reply]
On my userpage, I designed some of the userboxes, or you can look at any other one for how to make a custom one. Also, salsa is a dip (and a type of S. American music?) Thanks--Jimktrains 06:03, 28 November 2006 (UTC)[reply]
A primer is a type of textbook used to teach elementary and basic principles in that topic or subject area; an e-Primer is a way of saying that the books are electronic and online, similarly to how "e-Books" are formed with the addition of "e-" to denote an electronic version. See this for more information. (FYI: primer ([1]) is primarily used in British English, if I am correct; don't take my word on that, though.) Thanks! Flcelloguy (A note?) 22:57, 27 November 2006 (UTC)[reply]
Ah, sorry about the inconsistent capitalization. I'll try and be more careful in the future. Thanks anyways! Flcelloguy (A note?) 23:12, 27 November 2006 (UTC)[reply]
LouisBB, the reason I changed your wording about pumping the feed into a distillation column and instead used the word "routed into" was to make it more general. When the bottoms of a depropanizer column which operates at a much higher pressure flows into a next column such as a debutanizer or depentanizer operating at a much lower pressure, a pump is not needed at all. There are just as many cases of that situation as there are cases of needing a pump. That's why "routing" is a better choice of wording than "pumping". After all, we are concerned in this article with distillation rather than exactly how the the feed is gotten into the column.
The feed does not necessarily begin to boil when it enters a column because it "expands". Columns feeds may be sub-cooled at the column's operating temperature and pressure, or they may be saturated (at their boiling point), or they may be partially vaporized, or they may be superheated as they enter. If they are sub-cooled, then they will be heated and vaporized by the heat input into the column's reboiler. If they are saturated, then they will be boiled and vaorized, again by the reboilers heat input. Only when a feed is at a much higher pressure than the column, will there be any flashing and vaporizing as it enters. Again, to be general rather than specific, we should avoid discussing expansion which is specific to only some cases.
Please read the McCabe-Thiele method article and read the section on q-lines that explains the different thermal conditions of a tower's feeds. Also, please read the Flash evaporation article to read about flashing of high-pressure liquids as they expand.
Before I retired after a 50-year career, I quite literally designed hundreds of continuous distillation columns and the cases discussed above (pumping not always needed and various feed thermal conditions) are quite common in any refinery or large petrochemical plants and other industrial facilities.
I am going to change those wordings back as I had edited him and ask you to please keep in mind that the article must be generalized to fit all cases. Also, the linking to other existing article is better in some cases than trying to cover in one article what is already covered in other articles. Besides this Continuous distillation article, there are articles on Distillation, Fractional distillation, Fractionating column, McCabe-Thiele method, Fenske equation, Batch distillation, and many others .... and it is well to keep that in mind. This Continuous distillation article is not meant to cover the entire spectrum of distillation ... only large, industrial continuously operating columns. With best wishes to a fellow retiree, mbeychok 17:05, 2 December 2006 (UTC)[reply]
LouisBB, please read my responses to your suggestions in the "Rearrangement and Expansion" section of the Talk:Continuous distillation page ... before you make any further changes in the article, please. Cheers! - mbeychok 20:31, 2 December 2006 (UTC)[reply]
Louis, my sincere thanks for your comments on my discussion page at User talk:mbeychok. I just finished responding to those comments and you can read them on my discussion page. I hope that I answered your queries adequately. It is now midnight on California and I must get to bed. If you want to email me at any time, my email address is mbeychok@cox.net and I would welcome hearing further from you. Cheers and good night. - mbeychok 07:54, 3 December 2006 (UTC)[reply]
Good morning, Louis. It is Sunday morning here. Just wanted to let you know that I have just finished answering your latest comments on my Talk page at User talk:mbeychok. - mbeychok 20:38, 3 December 2006 (UTC)[reply]
Dear LouisBB, feel free to play around with the version in my sandbox, it is not in mainspace, so don't worry, and I will not revert if you perform a whole set of edits, Milton or I will just try to incorporate things. I have some things in mind that I want to set up in the article, so that you and Milton (and maybe more) can add and shape it into a correct version (in terms of chemical engineering).
It is a bit silly to have two sandbox versions around, on which we all try to improve the things. Just change the things in the sandbox, but try to keep the separate things separate, don't mix them (they can point to each other, a bit as what I did in reflux this morning). Since I am not a chemical engineer, there are many things that I may have misinterpreted, but I will keep on trying to improve the article .. my main target will be to try and get the subject into a line that a high-school student (or someone with even less knowledge) will be able to understand the majority of it. I think it is now in such a state, without telling things wrong.
Thank you Dirk very much for what you say. I am thrashing out my ideas with Milton privately for the moment, as I don't like to offend people and step on people's toes. I do know I can still do it, but unintentionally only. I might come out with something in due course. Kind regards, LouisBB 23:19, 4 December 2006 (UTC)[reply]
Hello! I've marked LouisBB:Sandbox1 for speedy deletion as it appears to be mistakenly created in the article namespace, probably when you meant to creat User:LouisBB/Sandbox1 instead. Just thought I'd let you know, and remind you to double-check before you create an article. Happy editing! —Keakealani 06:03, 12 December 2006 (UTC)[reply]
Really, making two inappropriately namespaced articles is a little excessive, don't you think? You really need to check. —Keakealani 06:13, 12 December 2006 (UTC)[reply]
Louis, it is a good practice to check for existing articles before starting to write on the same subject. You really should become more familiar with how to search Wikipedia. You should make a real effort to learn how to properly use Wikipedia by reading more of the Help pages and the available Tutorials. I realize that it is tedious but it really would help you.
Happy Holidays and regards, - mbeychok 05:37, 17 December 2006 (UTC)[reply]
If I didn't discuss the fate of the reporters, it's because that information isn't known. Furthermore, news agencies may deal with reporters for individual pieces, or on a contract basis. If any of the culprits were of this kind, they're not staff who would be dismissed the way this columnist was, instead the agency would simply decide not to work with them anymore. --Michael Snow 19:04, 13 January 2007 (UTC)[reply]
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Your list on User:LouisBB/WikiProjectChemEng led to something productive :-) . I've been meaning to write something in Wikipedia about inline/online analyzers for a while now and mentioning "inline analyzer" in your list reminded me to do it. I edited the article Analyzer to include chemical analyzers in addition to the data analyzer coverage already there. If you wish, you can check it out: Analyzer. You may have experience with inline analyzers. In my limited experience with such analyzers, I have called any analyzers connected to a processonline analyzers, and inline analyzers were those online ones which had their probes or sensors inserted into the process equipment content without a separate sample stream going to the analyzer. If your experience with online/inline analyzers used different terminology, let me know or change the Analyzer article accordingly.
I think I will soon take out most of last paragraph I put in the Analyzer article on the basis that the instruments for those kind of simple analysis methods are usually not called analyzers. H Padleckas 22:26, 2 April 2007 (UTC)[reply]
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