NO140914B - SORTING DEVICE FOR POTATO CROPS - Google Patents

SORTING DEVICE FOR POTATO CROPS Download PDF

Info

Publication number
NO140914B
NO140914B NO773243A NO773243A NO140914B NO 140914 B NO140914 B NO 140914B NO 773243 A NO773243 A NO 773243A NO 773243 A NO773243 A NO 773243A NO 140914 B NO140914 B NO 140914B
Authority
NO
Norway
Prior art keywords
water
decalin
peroxide
cyclodecanol
sorting device
Prior art date
Application number
NO773243A
Other languages
Norwegian (no)
Other versions
NO140914C (en
NO773243L (en
Inventor
Johannes Welp
Original Assignee
Grimme Landmaschinenfabrik Fa
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 Grimme Landmaschinenfabrik Fa filed Critical Grimme Landmaschinenfabrik Fa
Publication of NO773243L publication Critical patent/NO773243L/en
Publication of NO140914B publication Critical patent/NO140914B/en
Publication of NO140914C publication Critical patent/NO140914C/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D33/00Accessories for digging harvesters
    • A01D33/04Stone-separating mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/04Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
    • B07B13/05Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size using material mover cooperating with retainer, deflector or discharger

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Harvesting Machines For Root Crops (AREA)
  • Combined Means For Separation Of Solids (AREA)

Description

Fremgangsmåte for fremstilling av cyklodekanol-(l)-on(6). Process for the preparation of cyclodecanol-(1)-one (6).

Dekalin kan brukes som billig og lett Decalin can be used as cheap and easy

tilgjengelig utgangsmaterial for to-kaprinlaktam, som lar seg polymerisere til det teknisk verdifulle polyamid 10, jfr. A. Mul-ler og R. Pfluger, Kunststoffe 50, 1960, side 205. Fra dette blir co-kaprinlaktamet oppnådd ved en fremganksmåte som omfatter flere trinn: available starting material for to-caprine lactam, which can be polymerized into the technically valuable polyamide 10, cf. A. Muller and R. Pfluger, Kunststoffe 50, 1960, page 205. From this, the co-caprine lactam is obtained by a process comprising several steps:

a) Oksydering av dekalin I til dekalinperoksyd II, forestring av dette med eddik-syreanhydrid, b) omlagring av det dekalolperacetat a) Oxidation of decalin I to decalin peroxide II, esterification of this with acetic anhydride, b) rearrangement of the decalol peracetate

III som dannes til acetat av 1-oksy-l, 6-oksido-cyklodekan IV, III which is formed into acetate of 1-oxy-1, 6-oxido-cyclodecane IV,

c) alkalisk forsåpning av dette acetat til cyklodekanol-(l)-on(6) V, som på kjent c) alkaline saponification of this acetate to cyclodecanol-(l)-one(6) V, as in known

måte kan overføres til cyklodekanon VI, manner can be transferred to cyclodecanone VI,

d) oksimering av cyklodekanonet og Beckmann-omlagring av oksimet til d) oximation of the cyclodecane and Beckmann rearrangement of the oxime to

kaprinlaktan VIII. caprine lactan VIII.

Reaksjonsmekanismen for den sure omlagring av estere av dekalinperoksyd II til den tilsvarende 1,6-oksidoforbindelse IV er nærmere undersøkt. The reaction mechanism for the acidic rearrangement of esters of decalin peroxide II to the corresponding 1,6-oxido compound IV has been investigated in more detail.

Det har nå vist seg at denne bekjente syntese av w-kaprinlaktam kan forenkles betydelig ved at enten oksyketonet V frem-stilles ved en ett-trinns reaksjon direkte fra peroksydet II, jfr. eksempel 1, og over-flødiggjør omveien om peracetatet III og oksidoforbindelsen IV, eller ved at peroksydet II først overføres til den bicykliske enoleter IX og denne så forsåpes til oksyketon V, jfr. eksemplene 2 og 3. It has now been shown that this well-known synthesis of w-caprine lactam can be considerably simplified by either producing the oxyketone V in a one-step reaction directly from the peroxide II, cf. example 1, and superfluities the detour about the peracetate III and the oxido compound IV, or by the peroxide II first being transferred to the bicyclic enolet IX and this then being saponified to oxyketone V, cf. examples 2 and 3.

Det er fra det tyske patent nr. 960.459 kjent å omlagre dekalinperoksyd surt, nem-lig i nærvær av alkohol. I henhold til foreliggende oppfinnelse er det imidlertid bare nødvendig med en vandig syreoppløsning, hvilket er mer økonomisk og fører til et renere omlagringsprodukt. I henhold til den kjente prosess må det ønskede oksyketon isoleres, som oksim, mens det i henhold til foreliggende oppfinnelse bare ekstraheres med vann og det oppnådde råprodukt kan renses ved en eneste omkrystallisering fra cykloheksan. It is known from German patent no. 960,459 to store decalin peroxide in an acidic manner, namely in the presence of alcohol. According to the present invention, however, only an aqueous acid solution is required, which is more economical and leads to a cleaner re-storage product. According to the known process, the desired oxyketone must be isolated, as an oxime, while according to the present invention it is only extracted with water and the crude product obtained can be purified by a single recrystallization from cyclohexane.

I henhold til foreliggende oppfinnelse behandles dekalinperoksydet II med sure omlagringskatalysatorer i nærvær av vann, hvorved oksyketonet V dannes direkte, eller omlagringen foretas uten nærvær av vann, hvorved det dannes det destillerbare mel-lomprodukt bicyklisk enoleter IX (7-oksa-(4,4,1) bicyklo-undecen-(l,2)), som kan forsåpes til oksyketon V ved hjelp av for-tynnede syrer. According to the present invention, the decalin peroxide II is treated with acidic rearrangement catalysts in the presence of water, whereby the oxyketone V is formed directly, or the rearrangement is carried out without the presence of water, whereby the distillable intermediate bicyclic enol ether IX (7-oxa-(4,4 ,1) bicyclo-undecene-(1,2)), which can be saponified to oxyketone V by means of dilute acids.

Eksempel 1. Example 1.

5,0 g dekalinperoksyd ble oppløst i 375 ml 67 pst. eddiksyre og oppløsningen oppvarmet til koking i to timer på tilbakeløps-kjøler. Etter avkjøling ble det foretatt inn-damping til tørr tilstand i vakuum (30 mm Hg, maksimaltemperatur 40° C). Fra de-stilleringsresten ble det ved ekstrahering med vann oppnådd rått cyklodekanol-(l)-on(6), som kan omkrystalliseres fra cykloheksan til et rent produkt med smp. 69— 70° C (lit. 70° C). 5.0 g of decalin peroxide was dissolved in 375 ml of 67% acetic acid and the solution was heated to boiling for two hours on a reflux condenser. After cooling, evaporation to dryness was carried out in vacuum (30 mm Hg, maximum temperature 40° C). From the distillation residue crude cyclodecanol-(1)-one (6) was obtained by extraction with water, which can be recrystallized from cyclohexane to a pure product with m.p. 69— 70° C (lit. 70° C).

Utbyttet var 2,65 g, tilsvarende "53 pst. av det teoretisk mulige. The yield was 2.65 g, corresponding to 53 per cent of the theoretically possible.

Eksempel 2. Example 2.

10,0 g dekalinperoksyd ble oppløst i 100 ml benzen og til oppløsningen ble det satt 0,15 g kons. svovelsyre. Den sure oppløs-ning ble oppvarmet i 20 timer til koking på en tilbakeløpskjøler som var forsynt med 10.0 g of decalin peroxide was dissolved in 100 ml of benzene and 0.15 g of conc. sulfuric acid. The acidic solution was heated for 20 hours to boiling on a reflux condenser equipped with

vannutskiller for å fjerne reaksjonsvannet, og etter avkjøling vasket nøytralt med vann. Deretter ble oppløsningsmidlet og re-aksjonsproduktet enoleter IX skilt fra hver-andre ved fraksjonert destillering. Det ble oppnådd 6,45 g enoleter, kp. 94° C ved 14 mm Hg, tilsvarende et utbytte på 72 pst. water separator to remove the water of reaction, and after cooling washed neutrally with water. Then the solvent and the reaction product enolet IX were separated from each other by fractional distillation. 6.45 g of enolet were obtained, b.p. 94° C at 14 mm Hg, corresponding to a yield of 72 per cent.

5,0 g av enoleteren ble oppløst i 50 ml 50 pst. eddiksyre og etter koking av opp-løsningen på tilbakeløpskjøler i to timer ble det som forsåpingsprodukt oppnådd cyklodekanol-(l)-on(6). Dette kan isoleres og renses slik som beskrevet i eksempel 1. Det ble på denne måten oppnådd 5,3 g av oksyketonet, smp. 69—70° C, tilsvarende et utbytte på 95 pst. 5.0 g of the enol ether was dissolved in 50 ml of 50% acetic acid and after boiling the solution in a reflux condenser for two hours, cyclodecanol-(1)-one (6) was obtained as a saponification product. This can be isolated and purified as described in example 1. In this way, 5.3 g of the oxyketone were obtained, m.p. 69-70° C, corresponding to a yield of 95 per cent.

Eksempel 3. Example 3.

10,0 g dekalinperoksyd ble oppløst i 100 ml aceton og oppløsningen blandet med 0,1 g kons. svovelsyre. Etter koking i en time på tilbakeløpskjøler ble oppløsnings-midlet destillert fra, resten opptatt i eter, vasket nøytralt med vann og destillert i vakuum. Det ble på denne måten oppnådd 5,65 g enoleter IX, kp. 94° C ved 14 mm Hg, tilsvarende 63 pst. av det teoretisk mulige. 10.0 g decalin peroxide was dissolved in 100 ml acetone and the solution mixed with 0.1 g conc. sulfuric acid. After boiling for one hour in a reflux condenser, the solvent was distilled off, the residue taken up in ether, washed neutrally with water and distilled in vacuo. In this way, 5.65 g of enolet IX, bp. 94° C at 14 mm Hg, corresponding to 63 percent of what is theoretically possible.

5,0 g av enoleteren ble oppløst i 100 ml 50 pst. eddiksyre og etter koking av oppløs-ningen på tilbakeløpskjøler ble det som forsåpningsprodukt oppnådd cyklodekanol-(l)-on(6). Dette kan isoleres og renses slik som angitt i eksempel 1. Det ble på denne måten oppnådd 5,37 g av oksyketonet, smp. 69—70° C, tilsvarende et utbytte på 96 pst. 5.0 g of the enol ether was dissolved in 100 ml of 50% acetic acid and after boiling the solution in a reflux condenser, cyclodecanol-(1)-one (6) was obtained as a saponification product. This can be isolated and purified as indicated in example 1. In this way, 5.37 g of the oxyketone were obtained, m.p. 69-70° C, corresponding to a yield of 96 per cent.

Claims (1)

Fremgangsmåte for fremstilling av cyklodekanol-(l)-on(6) ved sur omlagring av dekahydronaftalin-hydroperoksyd, karakterisert ved at omlagringen fo-regår i ett trinn ved hjelp av sure kata-lysatorer og i nærvær av vann, eller at dekahydronaftalin-hydroperoksydet først om-lagres ved hjelp av en sur katalysator og uten nærvær av vann til en enoleter (7-oksa- (4,4,1) -bicykloundecen- (1,2)) som deretter forsåpes til cyklodekanol-(l)-on(6) ved behandling med vandige syrer.Process for the production of cyclodecanol-(1)-one (6) by acidic rearrangement of decahydronaphthalene hydroperoxide, characterized in that the rearrangement takes place in one step using acidic catalysts and in the presence of water, or that the decahydronaphthalene hydroperoxide first re-stored with the aid of an acidic catalyst and without the presence of water to an enol ether (7-oxa-(4,4,1)-bicycloundecene-(1,2)) which is then saponified to cyclodecanol-(1)-one (6) by treatment with aqueous acids.
NO773243A 1976-12-16 1977-09-21 SORTING DEVICE FOR POTATO CROPS NO140914C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2656913A DE2656913C3 (en) 1976-12-16 1976-12-16 Separating device for potato harvesters

Publications (3)

Publication Number Publication Date
NO773243L NO773243L (en) 1978-06-19
NO140914B true NO140914B (en) 1979-09-03
NO140914C NO140914C (en) 1979-12-12

Family

ID=5995635

Family Applications (1)

Application Number Title Priority Date Filing Date
NO773243A NO140914C (en) 1976-12-16 1977-09-21 SORTING DEVICE FOR POTATO CROPS

Country Status (9)

Country Link
AT (1) AT372814B (en)
CH (1) CH625672A5 (en)
DE (1) DE2656913C3 (en)
DK (1) DK143581C (en)
FR (1) FR2373955A1 (en)
GB (1) GB1547680A (en)
IT (1) IT1081150B (en)
NO (1) NO140914C (en)
SE (1) SE441641B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1110499A1 (en) * 1982-06-18 1984-08-30 Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Льна Method of cleaning seeds
DE3411606A1 (en) * 1984-03-29 1985-10-03 Lindemann Maschinenfabrik GmbH, 4000 Düsseldorf DEVICE FOR PRESORTING SOLID MATERIAL MIXTURES
ES2112117B1 (en) * 1994-03-28 1998-12-01 Ikerlan S Coop APPARATUS TO SEPARATE THE TERRONS IN A POTATO COMBINE.
GB2481471B (en) * 2011-01-31 2012-06-20 Frito Lay Trading Co Gmbh Apparatus and method for separating food slices
FR3025731B1 (en) * 2014-09-16 2018-07-20 Alfyma Industrie DEVICE FOR SEPARATING MATERIALS
CN109013343A (en) * 2018-08-03 2018-12-18 北京宜城环保科技有限公司 Material separator
RU208434U1 (en) * 2021-05-04 2021-12-17 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный агротехнологический университет имени П.А. Костычева" (ФГБОУ ВО РГАТУ) SEPARATING DEVICE FOR ROOT CUTTING MACHINE

Also Published As

Publication number Publication date
DK143581C (en) 1982-02-15
IT1081150B (en) 1985-05-16
AT372814B (en) 1983-11-25
SE7708909L (en) 1978-06-17
DE2656913A1 (en) 1978-06-22
NO140914C (en) 1979-12-12
SE441641B (en) 1985-10-28
DK37777A (en) 1978-06-17
DE2656913C3 (en) 1980-01-10
GB1547680A (en) 1979-06-27
FR2373955B3 (en) 1980-06-13
ATA885577A (en) 1983-04-15
DK143581B (en) 1981-09-14
FR2373955A1 (en) 1978-07-13
NO773243L (en) 1978-06-19
DE2656913B2 (en) 1979-04-26
CH625672A5 (en) 1981-10-15

Similar Documents

Publication Publication Date Title
Kupchan et al. Schoenocaulon Alkaloids. I. Active Principles of Schoenocaulon officinale. Cevacine and Protocevine1, 2
NO140914B (en) SORTING DEVICE FOR POTATO CROPS
Gardner Organic Peracid Oxidation of Some Enol Esters Involving Rearrangement1
US4480107A (en) Pyranic derivatives useful as intermediates in making muscone
Huisman et al. A investigations in the vitamin A‐series. II. Allylic rearrangements in the vitamin A‐series
US3387003A (en) Process for the production of 3-methyl-2-cyclopentene-4-ol-1-ones
US3133940A (en) Process for the separation of delta-1, 4-3-keto steroid compounds from mixtures thereof with other 3-keto steroids
Feuer et al. The Chemistry of Maleic Hydrazide. II. 1 The Course of the Michael-type Addition2
US2275752A (en) Cyclic condensation products and process of making same
US3192265A (en) Process for the manufacture of cyclodecanol-(1)-one (6)
Grenda et al. A convenient synthesis of 2-methylcyclopentane-1, 3-dione
US2773060A (en) Steroid ketals
US3472885A (en) Novel process for preparation of optically active keto steroids
US2811558A (en) Preparation of z-methyl i
US2749356A (en) Method of isolating and purifying keto steroids and new keto steroid compounds
US3176032A (en) 17alpha, 21-diacyloxy derivatives of 6alpha-methyl-delta1, 4-pregnadien-3, 20-dione and of 6alpha-methyl-delta4-pregnen-3, 20-dione
US3139428A (en) Benzylideneyohimbanes
US2989551A (en) New cyclo-pregnanes and process for their manufacture
US4360468A (en) Preparation of 13-oxabicyclo[10.3.0]pentadecane
US3280132A (en) Process for the production of homoyohimbones
De Facile Beckmann rearrangement of ketoximes mediated by yttrium triflate
US2751381A (en) Process of producing epoxy steroid compounds
MAGERLEIN et al. CHEMICAL STUDIES WITH 11-OXYGENATED STEROIDS. IV1, 2 THE REACTION OF HYPOHALOUS ACIDS WITH STEROID ENOL ACETATES
Eck et al. The Preparation of▵ 6, 8 (14)-,▵ 7, 9 (11)-,▵ 7, 14-and▵ 8, 14-Cholestadienes1
Testa et al. Synthesis of β-Lactones from β-Hydroxy Acids