PL53146B1 - - Google Patents
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- Publication number
- PL53146B1 PL53146B1 PL112839A PL11283966A PL53146B1 PL 53146 B1 PL53146 B1 PL 53146B1 PL 112839 A PL112839 A PL 112839A PL 11283966 A PL11283966 A PL 11283966A PL 53146 B1 PL53146 B1 PL 53146B1
- Authority
- PL
- Poland
- Prior art keywords
- halogen
- combustion products
- air
- bromate
- iodate
- Prior art date
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- 238000002485 combustion reaction Methods 0.000 claims description 11
- 229910052736 halogen Inorganic materials 0.000 claims description 10
- 150000002367 halogens Chemical class 0.000 claims description 10
- SXDBWCPKPHAZSM-UHFFFAOYSA-M bromate Chemical compound [O-]Br(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-M 0.000 claims description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- CPELXLSAUQHCOX-UHFFFAOYSA-M bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- ICIWUVCWSCSTAQ-UHFFFAOYSA-M iodate Chemical compound [O-]I(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-M 0.000 claims description 4
- XMBWDFGMSWQBCA-UHFFFAOYSA-M iodide Chemical compound [I-] XMBWDFGMSWQBCA-UHFFFAOYSA-M 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 150000002894 organic compounds Chemical class 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910000039 hydrogen halide Inorganic materials 0.000 claims description 3
- 239000012433 hydrogen halide Substances 0.000 claims description 3
- -1 hydrogen halides Chemical class 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 239000008151 electrolyte solution Substances 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 claims description 2
- 231100000719 pollutant Toxicity 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N triclene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- GZUXJHMPEANEGY-UHFFFAOYSA-N Bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 229910052904 quartz Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229960001701 Chloroform Drugs 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Ethylene tetrachloride Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229940102396 methyl bromide Drugs 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
Description
Pierwszenstwo: Opublikowano: 23. III. 1967 53146 KI. 42 1, 4/16 MKP G 01 n i£ C1YTELHIAI •i| mr»w**u Wspóltwórcy wynalazku: mgr inz. Jerzy Waclawik, mgr inz. Stefan Waszak Wlasciciel patentu: Instytut Chemii Ogólnej, Warszawa (Polska) Ciagly sposób oznaczania niewielkich stezen par chlorowcopochod¬ nych zwiazków organicznych i/albo chlorowcowodorów w po¬ wietrzu i innych gazach Wynalazek dotyczy ciaglego sposobu oznaczania par chlorowcopochodnych zwiazków organicznych np. trójchloroetylenu, czterochloroetylenu, chloro¬ formu, bromku metylu, fosgenu i chlorowcowodo¬ rów np. HCL, HBr, HF znajdujacych sie w bada¬ nym powietrzu lub innym gazie w postaci zanie¬ czyszczen w bardzo malych ilosciach rzedu do 0,02 ppm. Sposób ten polega na przeprowadzeniu chlorowca znajdujacego sie w zwiazkach w po¬ staci zwiazanej w wolny chlorowiec, który naste¬ pnie mozna oznaczac znanymi metodami, np. we¬ dlug opisu patentowego nr 50 961.Znane dotychczas sposoby polegaly badz na kolo¬ rymetrycznym oznaczaniu poszczególnych zwiaz¬ ków, badz na absorpcji ich w odpowiednim medium i nastepnie oznaczaniu róznymi metodami perio¬ dycznymi. Metody te jednak nie zapewniaja doklad¬ nego oznaczenia ilosciowego; sa one przewaznie jakosciowe lub pólilosciowe, a poza tym sa bardzo pracochlonne i czasochlonne.Z kolei istniejace ciagle metody oznaczania, zwlaszcza sposoby absorpcji w podczerwieni lub w ultrafiolecie wymagaja bardzo kosztownej apa¬ ratury.Znany jest takze sposób polegajacy na spaleniu wymienionych zwiazków w naczyniu kwarcowym wypelnionym ksztaltkami kwarcowymi lub meta¬ liczna platyna w postaci drutu lub folii. Otrzymana po spaleniu mieszanine chlorowca i chlorowcowodo¬ ru absorbowano w odpowiednim medium a nastep- 10 15 20 25 30 nie kolejno oznaczano poszczególne skladniki. Spo¬ sób ten wymaga stosowania do spalania chlorowco¬ pochodnych bardzo wysokich temperatur rzedu 950—1100°C i nie zapewnia równiez dokladnosci oznaczania.Wad tych mozna uniknac jesli zwiazany w zwiaz¬ kach organicznych chlorowiec przeprowadzi sie w wolna postac sposobem wedlug wynalazku.W tym celu powietrze lub gaz zanieczyszczone chlorowcopochodnymi i/albo chlorowcowodorami przepuszcza sie w sposób ciagly przez piec o tem¬ peraturze okolo 800°C wypelniony katalizatorem palladowym. W piecu nastepuje ilosciowe spalanie zanieczyszczen do wlasciwego chlorowcowodoru lub chlorowca, albo obu jednoczesnie. Produkty spa¬ lania przechodza nastepnie przez rurke wypelniona mieszanina bromku i bromianu, badz jodku i jo¬ danu, lub przez pluczke z ich wodnymi roztwo¬ rami. Podczas tej operacji produkty spalania prze¬ chodza ilosciowo w chlorowiec, który nastepnie oznacza sie sposobem i w urzadzeniu wedlug pa¬ tentu nr 50961, badz znanymi innymi metodami.Korzystnie jest jednakze stosowac do dalszego oznaczania metode elektrochemiczna podana w opi¬ sie patentu nr 50961.Jest to metoda prosta, czula i bardzo dokladna, która nie wymaga stosowania dodatkowo zródla energii elektrycznej a poza tym nadaje sie do wy¬ korzystania w ukladach sygnalizacyjnych.W przypadku stosowania metody galwanicznej 5314653146 3 4 produkty spalania uzyskane sposobem wedlug wy¬ nalazku mozna przeprowadzac bezposrednio do roztworu elektrolitu, który zawiera bromek i bro¬ mian lub jodek i jodan.Przyklad. Powietrze zanieczyszczone parami 5 trójchloroetylenu w ilosci do 3,0 ppm przeplywalo ze stala szybkoscia przez piec o temperaturze 800°C wypelniony katalizatorem palladowym. W piecu tym nastapilo ilosciowe spalanie trójchloroetylenu do dwutlenku wegla, chloru i do chlorowodoru, io „ Produkty spalania przepuszczano nastepnie przez \ugke wypelniona mieszanina bromku i bromianu wydzielajac równowazna ilosc bromu, która naste¬ pnie • oznaczono sposobem i w urzadzeniu wedlug opisu patentowego nr 50961. 15 PLPriority: Published: 23. III. 1967 53146 KI. 42 1, 4/16 MKP G 01 n i £ C1YTELHIAI • i | mr »w ** u Inventors: Jerzy Waclawik, MSc, Stefan Waszak, MSc. Patent owner: Institute of General Chemistry, Warsaw (Poland) Continuous method of determination of small concentrations of halogenated organic compounds and / or halogenated vapors in the air and other gases. The invention relates to a continuous method of determining the vapors of halogenated organic compounds, e.g., trichlorethylene, tetrachlorethylene, chloroform, methyl bromide, phosgene and halogenated hydrocarbons, e.g. HCl, HBr, HF, contained in the test air or other gas in the form of a vapor. ¬ cleanings in very small amounts, down to 0.02 ppm. This method consists in converting a halogen in a compound in a bound form into a free halogen, which can then be determined by known methods, e.g. according to the patent specification No. 50,961. The methods known so far consisted in the color-symmetric determination of individual compounds, or by absorbing them in a suitable medium and then determining them by various periodical methods. These methods, however, do not provide accurate quantification; they are usually qualitative or semi-quantitative, and besides, they are very laborious and time-consuming. In turn, the existing continuous methods of determination, especially methods of infrared or ultraviolet absorption, require very expensive equipment. There is also a known method involving the combustion of the above-mentioned compounds in a quartz vessel filled with quartz or metal platinum in the form of wire or foil. The mixture of halogen and hydrogen halide obtained after combustion was absorbed in a suitable medium, and then the individual components were successively determined. This method requires the use of very high temperatures, in the order of 950-1100 ° C, for the combustion of halogen derivatives, and also does not ensure the accuracy of the determination. These disadvantages can be avoided if the halogen bound in organic compounds is converted into free form according to the invention. For the purpose, air or gas contaminated with halogenated and / or hydrogen halides is continuously passed through a furnace at a temperature of about 800 ° C., filled with a palladium catalyst. The furnace quantitatively burns the pollutants to the appropriate hydrogen halide or halogen, or both. The combustion products then pass through a tube filled with a mixture of bromide and bromate or iodide and iodate, or through a rinse with their aqueous solutions. During this operation, the combustion products are converted quantitatively into halogen, which is then determined by the method and apparatus according to patent No. 50961, or by other methods. It is preferable, however, to use the electrochemical method for further determination, given in patent No. 50961. is a simple, sensitive and very accurate method, which does not require the use of an additional source of electricity and is also suitable for use in signaling systems. When using the galvanic method 5314653146 3 4 the combustion products obtained by the method according to the invention can be carried out directly to electrolyte solution, which contains bromide and bromine or iodide and iodate. Air contaminated with trichlorethylene vapors up to 3.0 ppm was passed at a constant rate through an oven at 800 ° C filled with palladium catalyst. In this furnace, the quantitative combustion of trichlorethylene to carbon dioxide, chlorine and hydrogen chloride took place, and the combustion products were then passed through a gulley filled with a mixture of bromide and bromate, giving off an equivalent amount of bromine, which was then determined by the method and apparatus according to patent description No. 50961. 15 PL
Claims (2)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19671598641 DE1598641A1 (en) | 1966-02-08 | 1967-02-06 | Continuous method for the determination of small amounts of fumes from halogen derivatives of organic compounds and hydrogen halides in air and other gases |
| GB5708/67A GB1172262A (en) | 1966-02-08 | 1967-02-07 | An Improved Method for Continuously Determining Concentrations of Gaseous Halogenated Organic Compounds and of Hydrogen Halide in Air or in Other Gases |
| NL6701901A NL6701901A (en) | 1966-02-08 | 1967-02-08 | |
| FR94148A FR1510628A (en) | 1966-02-08 | 1967-02-08 | Method for continuously determining low concentrations of gaseous halogenated organic compounds and hydrogen halides in gases |
| US614537A US3546079A (en) | 1966-02-08 | 1967-02-08 | Method for determining continuously small concentrations of gaseous halogenated compounds and of hydrogen halides in air and in other gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL53146B1 true PL53146B1 (en) | 1967-02-25 |
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