NO123396B - - Google Patents
Download PDFInfo
- Publication number
- NO123396B NO123396B NO15760965A NO15760965A NO123396B NO 123396 B NO123396 B NO 123396B NO 15760965 A NO15760965 A NO 15760965A NO 15760965 A NO15760965 A NO 15760965A NO 123396 B NO123396 B NO 123396B
- Authority
- NO
- Norway
- Prior art keywords
- nhs
- ammonium
- phosphate
- calcium
- dicalcium phosphate
- Prior art date
Links
- 235000019739 Dicalciumphosphate Nutrition 0.000 claims description 15
- 239000001506 calcium phosphate Substances 0.000 claims description 15
- 229940038472 dicalcium phosphate Drugs 0.000 claims description 15
- 229910000390 dicalcium phosphate Inorganic materials 0.000 claims description 15
- NEFBYIFKOOEVPA-UHFFFAOYSA-K dicalcium phosphate Chemical compound [Ca+2].[Ca+2].[O-]P([O-])([O-])=O NEFBYIFKOOEVPA-UHFFFAOYSA-K 0.000 claims description 14
- 229910019142 PO4 Inorganic materials 0.000 claims description 13
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 13
- 239000010452 phosphate Substances 0.000 claims description 13
- 239000003337 fertilizer Substances 0.000 claims description 12
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 5
- 238000003776 cleavage reaction Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 230000007017 scission Effects 0.000 claims description 5
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 claims description 4
- 239000004295 calcium sulphite Substances 0.000 claims description 4
- 235000010261 calcium sulphite Nutrition 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 claims description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- ZETCGWYACBNPIH-UHFFFAOYSA-N azane;sulfurous acid Chemical compound N.OS(O)=O ZETCGWYACBNPIH-UHFFFAOYSA-N 0.000 claims description 2
- 229940043430 calcium compound Drugs 0.000 claims 1
- -1 calcium compounds dicalcium phosphate Chemical class 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 10
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 description 8
- 239000000243 solution Substances 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 3
- 239000001099 ammonium carbonate Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 235000012501 ammonium carbonate Nutrition 0.000 description 2
- 229910052586 apatite Inorganic materials 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
- H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
- H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/42—Securing in a demountable manner
- H01R13/422—Securing in resilient one-piece base or case, e.g. by friction; One-piece base or case formed with resilient locking means
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Multi-Conductor Connections (AREA)
- Fertilizers (AREA)
Description
Fremgangsmåte for fremstilling av et gjødningsstoff inneholdende ammoniumnitrat, dikalsiumfosfat og kalsiumsulfit. Method for producing a fertilizer containing ammonium nitrate, dicalcium phosphate and calcium sulphite.
Nærværende oppfinnelse vedrører en The present invention relates to a
fremgangsmåte for fremstilling av et gjød-ningsstoff som inneholder kvelstoff og fosfat, og fosfatet er høyt oppløselig i ammo-niumcitratoppløsning. method for producing a fertilizer that contains nitrogen and phosphate, and the phosphate is highly soluble in ammonium citrate solution.
Det er kjent å spalte et naturlig fosfat ved hjelp av salpetersyre og derpå It is known to split a natural phosphate using nitric acid and then
bunnfelle eventuelt tilstedeværende kalsiumfluorid og dikalsiumfosfat ved å inn-føre gassformet ammoniakk i oppløsningen trap any calcium fluoride and dicalcium phosphate present by introducing gaseous ammonia into the solution
og derpå omdanne fremdeles tilstedeværende, sterkt hygroskopisk kalsiumnitrat and then converting still present, highly hygroscopic calcium nitrate
til ammoniumnitrat ved ytterligere tilsetning av gassformet ammoniakk og kulldioksyd (eller ammoniumkarbonat eller to ammonium nitrate by further addition of gaseous ammonia and carbon dioxide (or ammonium carbonate or
-bikarbonat). -bicarbonate).
På denne måte oppnås et gjødnings-stoff som, ved siden av dikalsiumfosfat og In this way, a fertilizer is obtained which, next to dicalcium phosphate and
ammoniumnitrat, inneholder en stor mengde meget fint fordelt kalsiumkarbonat. ammonium nitrate, contains a large amount of very finely divided calcium carbonate.
En ulempe ved dette gjødningsstoff er A disadvantage of this fertilizer is
at, skjønt dikalsiumfosfatet til å begynne that, though the dicalcium phosphate to begin with
med er fullstendig oppløselig i en ammo-niumcitratoppløsning, har dets ammonium-citratoppløselighet tilbøyelighet til å avta with is completely soluble in an ammonium citrate solution, its ammonium citrate solubility tends to decrease
i jorden på grunn av en reaksjon mellom in the soil due to a reaction between
dikalsiumfosfat og det fint fordelte kalsiumkarbonat, hvilket resulterer i dannel-sen av apatit, som er vanskelig for plantene dicalcium phosphate and the finely divided calcium carbonate, which results in the formation of apatite, which is difficult for the plants
å absorbere. to absorb.
Nu er det funnet at et gjødningsstoff Now it has been found that a fertilizer
med høy og varig ammoniumcitratoppløse-lighet kan oppnås hvis ved fremstillingen with high and lasting ammonium citrate solubility can be achieved if during the preparation
av gjødningsstoff et svoveldioksyd, ammoniumsulfit eller ammoniumbisulfit anven-des istedenfor kulldioksyd, ammoniumkarbonat eller ammoniumbikarbonat. of fertiliser, sulfur dioxide, ammonium sulphite or ammonium bisulphite is used instead of carbon dioxide, ammonium carbonate or ammonium bicarbonate.
Gjødningsstoff et som da oppstår be-står av en blanding av dikalsiumfosfat, ammoniumnitrat og kalsiumsulfit; ved bruk som gjødningsstoff er det funnet at ingen reaksjoner finner sted i jorden som resulterer i en nedsettelse i ammoniumcitrat-oppløseligheten. Fertilizer that is then produced consists of a mixture of dicalcium phosphate, ammonium nitrate and calcium sulphite; when used as a fertilizer, it has been found that no reactions take place in the soil resulting in a reduction in ammonium citrate solubility.
I norsk patent nr. 72 892 er beskrevet en fremgangsmåte ved hvilken spaltningsvæsken oppnådd ved oppløsning av råfosfat ved hjelp av en syre, f. eks. salpetersyre, nøytraliseres enten ved samtidig inn-føring av gassformet ammoniakk og svoveldioksyd eller ved tilsetning av ammoniumsulfit eller -bisulfit. Norwegian patent no. 72 892 describes a method in which the cleavage liquid obtained by dissolving raw phosphate with the aid of an acid, e.g. nitric acid, is neutralized either by the simultaneous introduction of gaseous ammonia and sulfur dioxide or by the addition of ammonium sulphite or bisulphite.
Ved denne kjente fremgangsmåte bunnfelles, i motsetning til fremgangsmåten etter nærværende oppfinnelse, intet dikalsiumfosfat, men et fosfat med apatitstruk-tur. Denne bunnfelling er også meget opp-løselig i ammoniumcitrat; men nærværende fremgangsmåte gir imidlertid den fordel at fosfatet bunnfelles i form av dikalsiumfosfat, et produkt som brukerne er mere for-trolig med, i motsetning til det fosfatapa-titgjødningsstoff, i hvilket PaO-, er tilstede i en uvanlig form. In this known method, in contrast to the method according to the present invention, no dicalcium phosphate is precipitated, but a phosphate with an apatite structure. This precipitate is also very soluble in ammonium citrate; however, the present method gives the advantage that the phosphate is precipitated in the form of dicalcium phosphate, a product with which users are more familiar, in contrast to the phosphate apatite fertilizer, in which PaO- is present in an unusual form.
Ved fremgangsmåten etter oppfinnel-sen oppløses, som ved de kjente fremgangs-måter, råfosfatet i en slik mengde salpetersyre for å gi en spaltningsvæske med et molart HNC>3/CaO-forhold på ca. 2. Der-nest nøytraliseres den sure oppløsning ved innførsel av NHs på en slik måte at nærværende fluorid bunnfelles som CaF2 og fosforsyren som dikalsiumfosfat. Denne prosess utføres fortrinsvis som en kontinuerlig prosess ved samtidig å innføre den sure spaltningsvæske og det gassformede ammoniakk i et reservoar utstyrt med over-løp, og nevnte reservoar er allerede fylt med en nøytralisert spaltningsvæske. In the method according to the invention, as in the known methods, the crude phosphate is dissolved in such an amount of nitric acid to give a cleavage liquid with a molar HNC>3/CaO ratio of approx. 2. Next, the acidic solution is neutralized by introducing NHs in such a way that the fluoride present precipitates as CaF2 and the phosphoric acid as dicalcium phosphate. This process is preferably carried out as a continuous process by simultaneously introducing the acidic cracking fluid and the gaseous ammonia into a reservoir equipped with an overflow, and said reservoir is already filled with a neutralized cracking fluid.
For å bunnfelle ammoniumcitratopp-løselig dikalsiumfosfat er det ønskelig at den kontinuerlige nøytralisasjon med NHs finner sted på en slik måte at der oppnås en suspensjon med CaF* og CaHP04 i delvis nøytralisert spaltningsvæske med et molart forhold NH3/NO3 på ca. 0.6. In order to precipitate ammonium citrate-soluble dicalcium phosphate, it is desirable that the continuous neutralization with NHs takes place in such a way that a suspension of CaF* and CaHP04 is obtained in partially neutralized cracking fluid with a molar ratio NH3/NO3 of approx. 0.6.
Etter fordampning av vann, hvis nød-vendig, nøytraliseres den slik oppnådde svakt sure blanding videre og omdannes med NH:i + SO2, hvoretter massen granuleres og tørkes. After evaporation of water, if necessary, the slightly acidic mixture thus obtained is further neutralized and converted with NH:i + SO2, after which the mass is granulated and dried.
Eksempel 1: 1000 kg kouribgha-fosfat inneholdende 33.8 pst. P2Or„ 51.7 pst. CaO og 4.65 pst. F spaltes med 1900 kg salpetersyre inneholdende 55 vektspst. HNOs. Det molare NOs/ CaO-forhold i spaltningsvæsken vil da være 1.8. Denne spaltningsvæske nøytraliseres kontinuerlig med 165 kg NHs — foran-nevnte og følgende mengder beregnes på 1000 kg råfosfat — med det resultat at det molare NHs/NOs-forhold i den delvis nøy-traliserte masse blir 0.586. Example 1: 1000 kg of kouribgha phosphate containing 33.8% P2Or, 51.7% CaO and 4.65% F are split with 1900 kg nitric acid containing 55% by weight. ENTs. The molar NOs/CaO ratio in the cracking fluid will then be 1.8. This cleavage fluid is continuously neutralized with 165 kg of NHs — the aforementioned and following amounts are calculated on 1000 kg of raw phosphate — with the result that the NHs/NOs molar ratio in the partially neutralized mass becomes 0.586.
Derpå fullføres nøytralisasj onen ved samtidig innføring av 120 kg NHs og 200 kg SO2, med det resultat at det molare NHs/NOs-forhold i massen økes til ca. 1. Massen, som fremdeles inneholder 20 pst. vann, blandes derpå med en tilstrekkelig mengde tørret, siktet grit som stammer fra en lignende tidligere prosess for å mulig-gjøre granulering, hvoretter granulene tør-res videre med varm luft til et fuktighets-innhold på 1 pst. The neutralization is then completed by the simultaneous introduction of 120 kg NHs and 200 kg SO2, with the result that the NHs/NOs molar ratio in the mass is increased to approx. 1. The pulp, still containing 20 percent water, is then mixed with a sufficient quantity of dried, screened grit derived from a similar earlier process to enable granulation, after which the granules are further dried with hot air to a moisture content of 1 percent
Ved analyse, bortsett fra 18.6 pst. N, viser granulene å inneholde 13.6 pst. P2O-,, som er omtrent utelukkende tilstede som dikalsiumfosfat og av hvilket 99.3 pst. er oppløselig i en 2 pst. ammoniumcitratopp-løsning. On analysis, apart from 18.6 per cent N, the granules show to contain 13.6 per cent P2O-, which is almost exclusively present as dicalcium phosphate and of which 99.3 per cent is soluble in a 2 per cent ammonium citrate solution.
Eksempel 2: 1000 kg florida pebble-fosfat inneholdende 34.0 vektspst. P2O», 48.1 vektspst CaO og 3.5 vektspst. F spaltes med 1655 kg salpetersyre inneholdende 55 vektspst. HNO:i og som gir en spaltningsvæske med et molart NO,,/CaO-forhold på 1.65. Den flytende masse nøytraliseres kontinuerlig med NHs på slik måte at — ved innførsel av 162 kg NHs pr. 1000 kg råfosfat — oppnås et molart NHs/NOs-forhold på 0.65. Example 2: 1000 kg Florida pebble phosphate containing 34.0 wt. P2O', 48.1 wt% CaO and 3.5 wt% F is split by 1655 kg nitric acid containing 55 wt. HNO:i and which gives a cleavage liquid with a molar NO,,/CaO ratio of 1.65. The liquid mass is continuously neutralized with NHs in such a way that - when importing 162 kg of NHs per 1000 kg of raw phosphate — a molar NHs/NOs ratio of 0.65 is achieved.
Derpå konsentreres svakt den sure suspensjon av dikalsiumfosfat i en blanding av ammoniumnitrat og kalsiumni-tratoppløsning, som er oppnådd på denne måte, ved fordampning og behandles derpå med 75 kg NHs og 180 kg SO2, og gir en ammoniumnitratmasse med ca. 20 pst. vann i hvilken dikalsiumfosfat og kalsiumsulfit er suspendert. Denne masse granuleres derpå og tørres på den måte som er beskrevet i eksempel 1. Sluttproduktet inneholder da 18.5 pst. N og 16 pst. P2O3, av hvilket 98.7 pst. er oppløselig i en 2 pst. ammoniumcitratoppløsning. The acidic suspension of dicalcium phosphate in a mixture of ammonium nitrate and calcium nitrate solution, which has been obtained in this way, is then slightly concentrated by evaporation and then treated with 75 kg of NHs and 180 kg of SO2, giving an ammonium nitrate mass of approx. 20 percent water in which dicalcium phosphate and calcium sulphite are suspended. This mass is then granulated and dried in the manner described in example 1. The end product then contains 18.5% N and 16% P2O3, of which 98.7% is soluble in a 2% ammonium citrate solution.
En mengde kaliumsalt kan tilsettes til den nøytraliserte masse før granuleringen og tørringen for å oppnå et N.P.K, gjød-ningsstoff. A quantity of potassium salt can be added to the neutralized mass before granulation and drying to obtain an N.P.K., fertilizer.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US35913364A | 1964-04-13 | 1964-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO123396B true NO123396B (en) | 1971-11-08 |
Family
ID=23412455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO15760965A NO123396B (en) | 1964-04-13 | 1965-04-09 |
Country Status (8)
| Country | Link |
|---|---|
| CH (1) | CH446469A (en) |
| DE (1) | DE1465163B2 (en) |
| DK (1) | DK129679B (en) |
| GB (1) | GB1099872A (en) |
| IL (1) | IL23344A (en) |
| NL (1) | NL6504710A (en) |
| NO (1) | NO123396B (en) |
| SE (1) | SE323123B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2727591A1 (en) * | 1976-06-25 | 1978-01-05 | Bunker Ramo | OUTSIDE CONDUCTOR CONNECTION FOR COAXIAL CONNECTOR |
| GB2137824A (en) * | 1983-04-07 | 1984-10-10 | Bicc Plc | Cable terminations |
| US10718910B2 (en) * | 2017-05-03 | 2020-07-21 | Senko Advanced Components, Inc | Field terminated ruggedized fiber optic connector system |
| CN108400477B (en) * | 2018-04-04 | 2023-10-10 | 浙江红星电业有限公司 | Spring self-locking type radio frequency coaxial connector |
| AU2020321357A1 (en) * | 2019-07-29 | 2022-03-03 | John Mezzalingua Associates, LLC | Passive two-piece inner conductor for compression connector |
-
1965
- 1965-04-09 NO NO15760965A patent/NO123396B/no unknown
- 1965-04-12 SE SE475065A patent/SE323123B/xx unknown
- 1965-04-12 IL IL2334465A patent/IL23344A/en unknown
- 1965-04-12 DK DK185165A patent/DK129679B/en unknown
- 1965-04-13 DE DE19651465163 patent/DE1465163B2/en active Pending
- 1965-04-13 CH CH514765A patent/CH446469A/en unknown
- 1965-04-13 NL NL6504710A patent/NL6504710A/xx unknown
- 1965-04-13 GB GB1580465A patent/GB1099872A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6504710A (en) | 1965-10-14 |
| GB1099872A (en) | 1968-01-17 |
| SE323123B (en) | 1970-04-27 |
| DE1465163B2 (en) | 1973-04-05 |
| DK129679C (en) | 1975-04-14 |
| DE1465163A1 (en) | 1969-02-13 |
| IL23344A (en) | 1969-05-28 |
| CH446469A (en) | 1967-11-15 |
| DK129679B (en) | 1974-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6419887B1 (en) | Process for the treatment of residual liquors from the ammoniation and carbonation of alkali metal salts | |
| NO123396B (en) | ||
| US2037706A (en) | Manufacture of ammoniated superphosphates | |
| NO123669B (en) | ||
| US2944882A (en) | Process of producing a phosphate fertilizer | |
| US2555634A (en) | Production of phosphate materials | |
| US1913791A (en) | Process of making a fertilizer | |
| Beeson et al. | Preparation of Physiologically Neutral Fertilizer Mixtures-Reactions of Monoammonium Phosphate with Limestone and with Dolomite | |
| SU806661A1 (en) | Method of producing noncaking fertilizer | |
| SU105992A1 (en) | The method of obtaining concentrated nitrogen-phosphate fertilizer | |
| GB339340A (en) | Improvements in and relating to the treatment of phosphate rock and the like | |
| DE3446787A1 (en) | Process for obtaining marketable mineral fertilisers | |
| US3121004A (en) | Process of preparing a compound fertilizer containing nitrogen, calcium and phosphate, and resultant product | |
| RU2221759C1 (en) | Process of production of mixed fertilizer with sulfate additive | |
| GB727770A (en) | Improvements in digestion of phosphate rock | |
| FR2137507A1 (en) | Extraction of aluminium and fluorine - from dil aqs solns,by pptn as ammonium fluoroaluminate | |
| DE608576C (en) | Process for the production of mixed fertilizers | |
| GB315485A (en) | Improvements in the manufacture and production of mixed fertilizers | |
| SU952829A1 (en) | Process for producing complex fertilizers | |
| SU1685901A1 (en) | Method for obtaining complex fertilizer | |
| SU1498744A1 (en) | Method of producing complex slowly-soluble fertilizers | |
| US1821309A (en) | Process of manufacturing compound fertilizers | |
| SU969697A1 (en) | Process for producing complex fertilizer | |
| SU444408A1 (en) | The method of obtaining complex fertilizers | |
| SU13590A1 (en) | The method of obtaining phosphate fertilizers |