NO124205B - - Google Patents

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Publication number
NO124205B
NO124205B NO2800/68A NO280068A NO124205B NO 124205 B NO124205 B NO 124205B NO 2800/68 A NO2800/68 A NO 2800/68A NO 280068 A NO280068 A NO 280068A NO 124205 B NO124205 B NO 124205B
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Norway
Prior art keywords
bentonite
sodium carbonate
amount
pellets
strength
Prior art date
Application number
NO2800/68A
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Norwegian (no)
Inventor
C Dorn
Tsung-Ying Shen
G Walford
Original Assignee
Merck & Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Merck & Co Inc filed Critical Merck & Co Inc
Priority to NO315169A priority Critical patent/NO124644B/no
Priority to NO315069A priority patent/NO124643B/no
Publication of NO124205B publication Critical patent/NO124205B/no

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/04—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
    • C07D295/08—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms
    • C07D295/084—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings
    • C07D295/088—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings to an acyclic saturated chain
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/14—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
    • C07C319/20—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides by reactions not involving the formation of sulfide groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D213/28—Radicals substituted by singly-bound oxygen or sulphur atoms
    • C07D213/32—Sulfur atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
    • C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
    • C07D233/66—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D233/72—Two oxygen atoms, e.g. hydantoin
    • C07D233/76—Two oxygen atoms, e.g. hydantoin with substituted hydrocarbon radicals attached to the third ring carbon atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D307/10—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D307/14—Radicals substituted by nitrogen atoms not forming part of a nitro radical
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/44—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D317/46—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
    • C07D317/48—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
    • C07D317/50—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to atoms of the carbocyclic ring
    • C07D317/56—Radicals substituted by sulfur atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
    • C07D333/14—Radicals substituted by singly bound hetero atoms other than halogen
    • C07D333/18—Radicals substituted by singly bound hetero atoms other than halogen by sulfur atoms

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Pyridine Compounds (AREA)

Description

Blanding for fremstilling av pellets av jernmalm. Mixture for the production of iron ore pellets.

Foreliggende oppfinnelse vedrører for-bedringer ved pelletisering av jernmalmer. The present invention relates to improvements in the pelletisation of iron ores.

Anvendelsen av f in-jernmalmer og fin-jernkonsentrater som masovnschargerings-materiale i form av herdede pellets har sta-dig øket. Mengden av masovnsmalm som brukes i denne form vil fortsette å øke, da man mer og mer må ta sin tilflukt til slike kilder for jern som takonitt som, før opp-redningen for å øke innholdet av jernoksyd, må finmales. The use of fine iron ores and fine iron concentrates as blast furnace charging material in the form of hardened pellets has steadily increased. The amount of blast furnace ore used in this form will continue to increase, as more and more recourse must be had to such sources of iron as taconite which, prior to recovery to increase the iron oxide content, must be finely ground.

Ved fremstillingen av pellets for dette øyemed blandes finmalm eller -konsentra-tet med et bindemiddel og fuktighet, og denne pelletiseringsblanding mates til en roterende horisontal trommel eller en an-nen passende innretning for fremstilling av kuler og hvorfra blandingen leveres i form av kuleformede pellets med en relativt lav styrke. De på denne måte fremstilte pellets utsettes deretter for en tørke-behandling ved forhøyet temperatur i en passende ovn. Produktet som fåes fra ovnen er en hård pellet av en tilstrekkelig struk-turell styrke til å kunne motstå virkningen av videre håndtering og forsendelse såvel som avskrapning og lignende i masovnen uten at det finner sted altfor stor nedslit-ning. In the production of pellets for this purpose, fine ore or concentrate is mixed with a binding agent and moisture, and this pelletizing mixture is fed to a rotating horizontal drum or another suitable device for the production of balls and from which the mixture is delivered in the form of ball-shaped pellets with a relatively low strength. The pellets produced in this way are then subjected to a drying treatment at an elevated temperature in a suitable oven. The product obtained from the furnace is a hard pellet of sufficient structural strength to be able to withstand the effects of further handling and shipping as well as scraping and the like in the blast furnace without excessive wear and tear taking place.

Bindemidlet som nå for tiden mest al-minnelig anvendes ved fremstillingen av pelletiseringsblandinger og fremstillingen av jernmalmpellets er bentonitt som er en plastisk leire med utpregede opsvellende og absorberende egenskaper. Bentonitt frem-mer agglomereringen av malmen til kom-pakte kuler og øker i vesentlig grad kulenes såkalte tørre styrke ved opphetning. Denne tørre styrke er av meget stor betydning for å unngå at de fremstilte pellets skal falle fra hverandre til en finpulverisert til-stand som følge av hårdhendt behandling. The binder that is currently most commonly used in the production of pelletizing mixtures and the production of iron ore pellets is bentonite, which is a plastic clay with pronounced swelling and absorbing properties. Bentonite promotes the agglomeration of the ore into compact balls and significantly increases the so-called dry strength of the balls when heated. This dry strength is of very great importance to prevent the manufactured pellets from falling apart into a finely powdered state as a result of heavy-handed processing.

Vi har oppdaget at den styrkende virkning av bentonitten i høy grad økes hvis det tilsettes en mengde natriumkarbonat av ikke over 0,9 kg til 1 tonn av jernoksyd til blandingen før pelletiseringsprosessen. Den nøyaktige årsak til dette har vi ikke kunnet bringe på det rene, men resultatet er utenfor enhver tvil. We have discovered that the strengthening effect of the bentonite is greatly increased if an amount of sodium carbonate not exceeding 0.9 kg to 1 ton of iron oxide is added to the mixture prior to the pelletizing process. We have not been able to establish the exact reason for this, but the result is beyond any doubt.

Når natriumkarbonatet tilsettes til pelletiseringsblandingen i en riktig mengde økes både råstyrken og den tørre styrke av de fremstilte pellets. When the sodium carbonate is added to the pelletizing mixture in the right amount, both the raw strength and the dry strength of the produced pellets are increased.

Vi har også oppdaget at utover en bestemt mengde vil tilsetningen av mere natriumkarbonat til pelletiseringsblandingen ikke mere bevirke noen ytterligere gunstig effekt og kan faktisk, hvis tilsetningen økes ytterligere, ha en ugunstig effekt. We have also discovered that beyond a certain amount, the addition of more sodium carbonate to the pelletizing mixture will no longer produce any further beneficial effect and may in fact, if the addition is further increased, have an adverse effect.

Vi har videre oppdaget at den optimale mengde natriumkarbonat som skal tilsettes ikke står i noe bestemt forhold til mengden av bentonitt i blandingen, men er helt ut avhengig av mengden av tilstedeværende jernkonsentrat. Uten hensyn til mengden av anvendt bentonitt synes således tilsetningen av ikke over 0,9 kg, og fortrinnsvis bare ca. 0,45 kg, natriumkarbonat pr. tonn jernkonsentrat i blandingen i de fleste til-feller å medføre en optimal virkning. We have also discovered that the optimal amount of sodium carbonate to be added is not in any specific relation to the amount of bentonite in the mixture, but is entirely dependent on the amount of iron concentrate present. Without regard to the amount of bentonite used, the addition of no more than 0.9 kg, and preferably only approx. 0.45 kg, sodium carbonate per tonnes of iron concentrate in the mixture in most cases to bring about an optimal effect.

For å klargjøre det foran anførte er det i det følgende anført 3 tabeller som viser virkningen av varierende mengder natriumkarbonat pr. tonn tørt jernkonsentrat når det tilsettes blandinger som inneholder resp. 1,8 kg, 3,6 kg og 6,4 kg bentonitt pr. tonn tørt jernkonsentrat. In order to clarify the above, 3 tables are listed below which show the effect of varying amounts of sodium carbonate per tonnes of dry iron concentrate when mixtures containing resp. 1.8 kg, 3.6 kg and 6.4 kg of bentonite per tons of dry iron concentrate.

Av de foran anførte tabeller fremgår det at mens avslutningsstyrken av de fremstilte pellets økes ved større tilsetning av bentonitt opnåes for en viss mengde bentonitt den optimale effekt av natriumkarbonat når natriumkarbonatet tilsettes i en mengde av 0,45 kg til 1 tonn av tørt jernkonsentrat. From the above tables, it appears that while the final strength of the manufactured pellets is increased by greater addition of bentonite, for a certain amount of bentonite the optimum effect of sodium carbonate is achieved when the sodium carbonate is added in an amount of 0.45 kg to 1 tonne of dry iron concentrate.

Mens den gunstige virkning av natriumkarbonatet oppnåes uten hensyn til mengden anvendt bentonitt fremgår det av tabellene at det oppnåes større relativ øk-ning av styrken av pelletene i blandinger hvor mengden av bentonitt er på den lave side. Av tabell I, hvor det ble anvendt 1,8 kg bentonitt, fremgår det at tilsetningen av 0,45 kg natriumkarbonat resulterer i en pellet med en styrke som svarer til styrken av en pellet som inneholder 5,4 kg bentonitt uten noe natriumkarbonat. Av tabell III vil man se at med 6,4 kg bentonitt gir tilsetningen av 0,45 kg natriumkarbonat en styrke som svarer til den som oppnåes med 9,1 kg bentonitt uten noe natriumkarbonat. While the beneficial effect of the sodium carbonate is achieved regardless of the amount of bentonite used, it appears from the tables that a greater relative increase in the strength of the pellets is achieved in mixtures where the amount of bentonite is on the low side. From table I, where 1.8 kg of bentonite was used, it appears that the addition of 0.45 kg of sodium carbonate results in a pellet with a strength that corresponds to the strength of a pellet containing 5.4 kg of bentonite without any sodium carbonate. From table III it will be seen that with 6.4 kg of bentonite the addition of 0.45 kg of sodium carbonate gives a strength which corresponds to that obtained with 9.1 kg of bentonite without any sodium carbonate.

Det tør være klart at erkjennelsen i henhold til oppfinnelsen medfører vesent-lige fordeler og en av hovedfordelene er den avgjorte besparelse som oppnåes ved hjelp av oppfinnelsen, da man nå kan fremstille en pellet av en ønsket styrke ved anvendelse av en meget mindre mengde bentonitt en den som kreves når det ikke anvendes natriumkarbonat. It should be clear that the recognition according to the invention entails significant advantages and one of the main advantages is the decided saving that is achieved with the help of the invention, as one can now produce a pellet of a desired strength by using a much smaller amount of bentonite than that required when sodium carbonate is not used.

Det skal bemerkes at det i og for seg er kjent å bruke natriumkarbonat ved fremstilling av jernmalmpellets, se f. eks. britisk patent nr. 727 315 som går ut på å framstille pellets ved utsprøyting av en vandig oppløsning av natriumkarbonat og/ eller natriumhydroksyd på malmen som skal overføres på pellets. Det framgår imid-lertid ikke av patentskriftet at en liten mengde av plastisk leirebindemiddel som bentonitt, som bindemiddel for jernmalmen økes i en overraskende grad ved tilsetning av en passende mengde natriumkarbonat. It should be noted that it is known per se to use sodium carbonate in the production of iron ore pellets, see e.g. British patent no. 727 315 which involves producing pellets by spraying an aqueous solution of sodium carbonate and/or sodium hydroxide onto the ore to be transferred onto pellets. However, it does not appear from the patent that a small amount of plastic clay binder such as bentonite, as a binder for the iron ore, is increased to a surprising extent by the addition of a suitable amount of sodium carbonate.

Virkningen av natriumkarbonatet ved foreliggende framgangsmåte er ikke bare additiv, men er prinsippielt korrigerende og virker på en så overraskende måte at tilsetningen muliggjør bruken av store mengder av lavverdig bentonitt. Det er store forskjeller med hensyn til kvaliteten av rå bentonitt. Høyverdige bentonitter er ganske sjeldne og temmelig kostbare, særlig i de mengder som kreves for stor-tek-nisk pelletisering av jernmalm. Med natur-lig høyverdig bentonitt kreves det mindre av bentonitten når det relativt billige natriumkarbonat er tilstede i passende mengde. Det henvises således til den foranstående tabell 1 hvorav det framgår at med 1,8 kg bentonitt og med 0,454 kg natriumkarbonat pr. tonn tørt jernkonsentrat, oppnås der en ekvivalent virkning til 5,4 kg bentonitt. Det skal gjøres oppmerksom på at i det britiske patenskrift dreier det seg om mengder av størrelsesorden 5 kg natriumkarbonat pr. tonn. Mens natriumkarbonat således i en sterk grad forbedrer bindeegenskapene av f. eks. bentonitt, kan ikke natriumkarbonatet alene, selv i meget store mengder, anvendes for fullstendig å erstatte bentonitten. The effect of the sodium carbonate in the present method is not only additive, but is in principle corrective and works in such a surprising way that the addition enables the use of large quantities of low-quality bentonite. There are great differences with regard to the quality of raw bentonite. High-quality bentonites are quite rare and rather expensive, especially in the quantities required for high-tech pelletisation of iron ore. With natural high-quality bentonite, less of the bentonite is required when the relatively cheap sodium carbonate is present in the appropriate quantity. Reference is thus made to the preceding table 1, from which it appears that with 1.8 kg of bentonite and with 0.454 kg of sodium carbonate per tonne of dry iron concentrate, an equivalent effect to 5.4 kg of bentonite is achieved. It should be noted that in the British patent it is about quantities of the order of 5 kg of sodium carbonate per ton. While sodium carbonate thus greatly improves the binding properties of e.g. bentonite, the sodium carbonate alone, even in very large quantities, cannot be used to completely replace the bentonite.

Sluttelig skal bemerkes at når det i de foranstående tabeller er brukt uttrykket 18" «grønn» dråpeprøve, refererer det her seg til det antall frie fall som såkalt «grønn» eller «rå» fuktig pellets kan utsettes for ved fritt fall fra en høyde av 18" Finally, it should be noted that when the expression 18" "green" drop test is used in the preceding tables, it refers here to the number of free falls to which so-called "green" or "raw" moist pellets can be exposed when free falling from a height of 18"

(45,7 cm) på et hårdt underlag uten at der finner sted noen nevneverdig brekkasje. Denne prøve gir altså uttrykk for slagstyr-ken. Svake pellets kan naturligvis ikke på en tilfredsstillende måte chargeres til en ovn eller behandles i denne og de pellets som fås ved foreliggende framgangsmåte har en særlig stor styrke. (45.7 cm) on a hard surface without any significant breakage occurring. This test therefore expresses the impact strength. Weak pellets cannot of course be satisfactorily loaded into a furnace or processed in it, and the pellets obtained by the present method have a particularly high strength.

Claims (2)

1. Pelletiseringsblanding inneholdende jernoksyd og et plastisk leirebindemiddel f. eks. bentonitt, i en liten men effektiv mengde, eller en herdet pellet framstilt herav, karakterisert ved at den inneholder natriumkarbonat i en mengde av ikke over 0,9 kg til 1 tonn av jernoksyd.1. Pelletizing mixture containing iron oxide and a plastic clay binder, e.g. bentonite, in a small but effective quantity, or a hardened pellet produced from it, characterized in that it contains sodium carbonate in an amount of not more than 0.9 kg to 1 ton of iron oxide. 2. Pelletiseringsblanding i henhold til påstand 1, karakterisert ved at natriumkarbonatet er tilstede i en mengde av ca. 0,45 kg til 1 tonn jernoksyd.2. Pelletizing mixture according to claim 1, characterized in that the sodium carbonate is present in an amount of approx. 0.45 kg to 1 ton of iron oxide.
NO2800/68A 1967-07-26 1968-07-15 NO124205B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NO315169A NO124644B (en) 1967-07-26 1969-07-31
NO315069A NO124643B (en) 1967-07-26 1969-07-31

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65604167A 1967-07-26 1967-07-26
US72835168A 1968-05-10 1968-05-10

Publications (1)

Publication Number Publication Date
NO124205B true NO124205B (en) 1972-03-20

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JP (1) JPS5019543B1 (en)
BE (1) BE718559A (en)
CH (1) CH534138A (en)
DE (1) DE1768964A1 (en)
ES (4) ES356488A1 (en)
FR (2) FR1586146A (en)
GB (1) GB1191042A (en)
IE (1) IE32515B1 (en)
IL (1) IL30369A (en)
NL (1) NL144484B (en)
NO (1) NO124205B (en)
SE (1) SE364040B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE733993A (en) * 1968-06-14 1969-12-03
US4315031A (en) * 1977-09-01 1982-02-09 Science Union Et Cie Thiosubstituted amino acids
FR2434149A1 (en) * 1978-06-22 1980-03-21 Parcor NEW L-CYSTEIN DERIVATIVES
US4246263A (en) * 1979-10-15 1981-01-20 Pfizer Inc. Antiinflammatory and immunoregulatory pyrimidines, their method of use and pharmaceutical compositions
DE3303344A1 (en) * 1983-02-02 1984-08-02 Hoechst Ag, 6230 Frankfurt METHOD FOR PRODUCING N-ALKYLATED AMINO ACIDS AND THEIR ESTERS
DE10045831A1 (en) * 2000-09-14 2002-04-04 Gruenenthal Gmbh Anticonvulsant, anxiolytic and especially analgesic medicaments, comprising new or known beta-thio-alpha-aminoacid compounds having strong affinity for gabapentin binding site
MXPA03002090A (en) 2000-09-14 2003-06-19 Gruenenthal Gmbh szlig;-THIO-AMINO ACIDS.
US8833328B2 (en) 2010-12-29 2014-09-16 Ford Global Technologies, Llc Structural frame

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GB1191042A (en) 1970-05-06
IE32515B1 (en) 1973-09-05
CH534138A (en) 1973-02-28
BE718559A (en) 1969-01-27
DE1768964A1 (en) 1972-01-27
IE32515L (en) 1969-01-26
SE364040B (en) 1974-02-11
JPS5019543B1 (en) 1975-07-08
IL30369A0 (en) 1968-09-26
ES372357A1 (en) 1972-01-16
FR1586146A (en) 1970-02-13
NL144484B (en) 1975-01-15
ES372358A1 (en) 1971-10-16
ES372359A1 (en) 1971-10-16
NL6809834A (en) 1969-01-28
IL30369A (en) 1973-08-29
FR7960M (en) 1970-06-01
ES356488A1 (en) 1970-04-01

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