CA1309268C - Method for the manufacture of slow-release fertilizers - Google Patents
Method for the manufacture of slow-release fertilizersInfo
- Publication number
- CA1309268C CA1309268C CA000561811A CA561811A CA1309268C CA 1309268 C CA1309268 C CA 1309268C CA 000561811 A CA000561811 A CA 000561811A CA 561811 A CA561811 A CA 561811A CA 1309268 C CA1309268 C CA 1309268C
- Authority
- CA
- Canada
- Prior art keywords
- oil
- crosslinking
- coating
- unsaturated
- fertilizer
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 38
- 238000000576 coating method Methods 0.000 claims abstract description 38
- 238000004132 cross linking Methods 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 10
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011630 iodine Substances 0.000 claims abstract description 5
- 229910052740 iodine Inorganic materials 0.000 claims abstract description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 4
- 229920003176 water-insoluble polymer Polymers 0.000 claims abstract description 3
- 239000011785 micronutrient Substances 0.000 claims abstract 2
- 235000013369 micronutrients Nutrition 0.000 claims abstract 2
- 239000003921 oil Substances 0.000 claims description 45
- 235000019198 oils Nutrition 0.000 claims description 45
- 239000008187 granular material Substances 0.000 claims description 30
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 15
- 239000000454 talc Substances 0.000 claims description 11
- 229910052623 talc Inorganic materials 0.000 claims description 11
- 239000007931 coated granule Substances 0.000 claims description 7
- 239000000944 linseed oil Substances 0.000 claims description 7
- 235000021388 linseed oil Nutrition 0.000 claims description 7
- 238000006116 polymerization reaction Methods 0.000 claims description 7
- 235000010333 potassium nitrate Nutrition 0.000 claims description 7
- 239000004323 potassium nitrate Substances 0.000 claims description 7
- 239000003431 cross linking reagent Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 235000012424 soybean oil Nutrition 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 235000019485 Safflower oil Nutrition 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 229910052751 metal Chemical class 0.000 claims description 3
- 239000002184 metal Chemical class 0.000 claims description 3
- 150000002978 peroxides Chemical class 0.000 claims description 3
- 235000005713 safflower oil Nutrition 0.000 claims description 3
- 239000003813 safflower oil Substances 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- OBETXYAYXDNJHR-UHFFFAOYSA-N 2-Ethylhexanoic acid Chemical class CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- 235000019486 Sunflower oil Nutrition 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 150000008049 diazo compounds Chemical class 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 235000013312 flour Nutrition 0.000 claims description 2
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 2
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 2
- 239000002367 phosphate rock Substances 0.000 claims description 2
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 claims description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 2
- 239000002600 sunflower oil Substances 0.000 claims description 2
- 239000004254 Ammonium phosphate Substances 0.000 claims 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims 1
- 235000019289 ammonium phosphates Nutrition 0.000 claims 1
- 235000013877 carbamide Nutrition 0.000 claims 1
- 239000004359 castor oil Substances 0.000 claims 1
- 235000019438 castor oil Nutrition 0.000 claims 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 5
- 239000011247 coating layer Substances 0.000 abstract description 2
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000000203 mixture Substances 0.000 description 13
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 13
- 239000001993 wax Substances 0.000 description 12
- 229920000642 polymer Polymers 0.000 description 8
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 229910002651 NO3 Inorganic materials 0.000 description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 229920006037 cross link polymer Polymers 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 125000005456 glyceride group Chemical group 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000003621 irrigation water Substances 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000002383 tung oil Substances 0.000 description 2
- 239000001195 (9Z,12Z,15Z)-octadeca-9,12,15-trienoic acid Substances 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 241001133760 Acoelorraphe Species 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 235000010919 Copernicia prunifera Nutrition 0.000 description 1
- 244000180278 Copernicia prunifera Species 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- AYFVYJQAPQTCCC-GBXIJSLDSA-N L-threonine Chemical compound C[C@@H](O)[C@H](N)C(O)=O AYFVYJQAPQTCCC-GBXIJSLDSA-N 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- HOKDBMAJZXIPGC-UHFFFAOYSA-N Mequitazine Chemical compound C12=CC=CC=C2SC2=CC=CC=C2N1CC1C(CC2)CCN2C1 HOKDBMAJZXIPGC-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- YIKSCQDJHCMVMK-UHFFFAOYSA-N Oxamide Chemical compound NC(=O)C(N)=O YIKSCQDJHCMVMK-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- 241000212342 Sium Species 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 244000153888 Tung Species 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- QFHMNFAUXJAINK-UHFFFAOYSA-N [1-(carbamoylamino)-2-methylpropyl]urea Chemical compound NC(=O)NC(C(C)C)NC(N)=O QFHMNFAUXJAINK-UHFFFAOYSA-N 0.000 description 1
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 description 1
- 235000020661 alpha-linolenic acid Nutrition 0.000 description 1
- 229940094070 ambien Drugs 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- JPNZKPRONVOMLL-UHFFFAOYSA-N azane;octadecanoic acid Chemical class [NH4+].CCCCCCCCCCCCCCCCCC([O-])=O JPNZKPRONVOMLL-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- JLQUFIHWVLZVTJ-UHFFFAOYSA-N carbosulfan Chemical compound CCCCN(CCCC)SN(C)C(=O)OC1=CC=CC2=C1OC(C)(C)C2 JLQUFIHWVLZVTJ-UHFFFAOYSA-N 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 229920001688 coating polymer Polymers 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000002194 fatty esters Chemical class 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 125000005908 glyceryl ester group Chemical group 0.000 description 1
- PYGSKMBEVAICCR-UHFFFAOYSA-N hexa-1,5-diene Chemical group C=CCCC=C PYGSKMBEVAICCR-UHFFFAOYSA-N 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000000400 lauroyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 150000002888 oleic acid derivatives Chemical class 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 150000003626 triacylglycerols Chemical class 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- ZAFYATHCZYHLPB-UHFFFAOYSA-N zolpidem Chemical compound N1=C2C=CC(C)=CN2C(CC(=O)N(C)C)=C1C1=CC=C(C)C=C1 ZAFYATHCZYHLPB-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL81975A IL81975A0 (en) | 1987-03-24 | 1987-03-24 | Method for the manufacture of slow-release fertilizers |
| IL81975 | 1987-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1309268C true CA1309268C (en) | 1992-10-27 |
Family
ID=11057641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000561811A Expired - Fee Related CA1309268C (en) | 1987-03-24 | 1988-03-18 | Method for the manufacture of slow-release fertilizers |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4880455A (enExample) |
| AU (1) | AU605843B2 (enExample) |
| CA (1) | CA1309268C (enExample) |
| CH (1) | CH676980A5 (enExample) |
| DE (1) | DE3809022A1 (enExample) |
| GB (1) | GB2202523B (enExample) |
| IL (1) | IL81975A0 (enExample) |
| ZA (1) | ZA881680B (enExample) |
Families Citing this family (61)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL81311A (en) * | 1987-01-20 | 1990-11-29 | Haifa Chemicals Ltd | Method for the manufacture of slow release fertilizers |
| US5127933A (en) * | 1991-04-15 | 1992-07-07 | Hallett Arne L | Complete fertilizer and fungus nutrient material with low solubility and method for making same |
| JPH0687684A (ja) * | 1992-08-13 | 1994-03-29 | Chisso Corp | 被覆粒状肥料 |
| GB2305914B (en) * | 1995-10-06 | 1999-12-15 | Chown Peter A C | A slow release fertilizer product |
| US5803946A (en) * | 1996-06-20 | 1998-09-08 | Planet Polymer Technologies, Inc. | Controlled release plant nutrients |
| IL121073A (en) * | 1997-06-13 | 2000-07-16 | Contrix Ltd | Method for production of controlled release chemicals by encapsulation |
| MY120571A (en) * | 1998-05-22 | 2005-11-30 | Sumitomo Chemical Co | Granular coated fertilizer and method for producing the same |
| US6039781A (en) * | 1998-06-09 | 2000-03-21 | Oms Investments, Inc. | Precoated controlled release fertilizers and processes for their preparation |
| US6391454B1 (en) | 1999-04-06 | 2002-05-21 | Agway Inc. | Controlled release urea-based products |
| ZA200204423B (en) * | 1999-12-22 | 2004-01-26 | Kemira Growhow Oy | Seed coating for improving the efficiency of plant nutrients and coated seed. |
| BR0208366A (pt) * | 2001-03-28 | 2004-03-09 | Luzenac America Inc | Composição de fertilizante seco e método de preparo do mesmo |
| FI114080B (fi) * | 2001-06-21 | 2004-08-13 | Kemira Agro Oy | Pinnoitettu siemen ja menetelmä siemenen pinnoittamiseksi |
| US6787234B2 (en) * | 2002-05-15 | 2004-09-07 | Oms Investments, Inc. | Triggered start products and processes for the production and use thereof |
| US20040016276A1 (en) * | 2002-07-26 | 2004-01-29 | Wynnyk Nick P. | Controlled release fertilizer having improved mechanical handling durability and method for production thereof |
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|---|---|---|---|---|
| GB954555A (en) * | 1959-10-13 | 1964-04-08 | Archer Daniels Midland Co | Improvements in or relating to delayed action granular fertilizers |
| US3096171A (en) * | 1960-10-10 | 1963-07-02 | Int Minerals & Chem Corp | Process for preparing slow release fertilizer composition |
| US3223518A (en) * | 1961-08-18 | 1965-12-14 | Archer Daniels Midland | Granular fertilizer having a plurality of coatings and the process of making |
| US3158462A (en) * | 1963-06-24 | 1964-11-24 | George W Helme Company | Fungistatic non-caking, substantially dust free, water leachable fertilizer |
| US3242237A (en) * | 1963-09-11 | 1966-03-22 | Sun Oil Co | Method of preparing slow release fertilizer particles |
| US3285223A (en) * | 1963-12-09 | 1966-11-15 | Archer Daniels Midland Co | Apparatus for coating granules |
| US3321298A (en) * | 1964-03-20 | 1967-05-23 | Sr Verne C Bidlack | Tung oil encapsulated controlled release water-soluble fertilizer |
| US3259482A (en) * | 1965-10-14 | 1966-07-05 | Archer Daniels Midland Co | Slow release fertilizer with a plurality of epoxy/polyester resin coatings |
| US3264089A (en) * | 1965-12-10 | 1966-08-02 | Archer Daniels Midland Co | Slow release fertilizer granule having a plurality of urethane resin coatings |
| NL8403505A (nl) * | 1984-11-16 | 1986-06-16 | Sierra Chemical Europ | Kunstmestsamenstelling in korrelvorm met een geregelde afgifte van meststoffen en werkwijze voor het bereiden hiervan. |
-
1987
- 1987-03-24 IL IL81975A patent/IL81975A0/xx not_active IP Right Cessation
-
1988
- 1988-02-26 US US07/160,633 patent/US4880455A/en not_active Expired - Fee Related
- 1988-03-09 ZA ZA881680A patent/ZA881680B/xx unknown
- 1988-03-17 DE DE3809022A patent/DE3809022A1/de not_active Withdrawn
- 1988-03-18 CA CA000561811A patent/CA1309268C/en not_active Expired - Fee Related
- 1988-03-18 GB GB8806435A patent/GB2202523B/en not_active Expired - Fee Related
- 1988-03-18 CH CH1046/88A patent/CH676980A5/de not_active IP Right Cessation
- 1988-03-24 AU AU13586/88A patent/AU605843B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU605843B2 (en) | 1991-01-24 |
| DE3809022A1 (de) | 1988-10-06 |
| IL81975A0 (en) | 1987-10-20 |
| GB2202523A (en) | 1988-09-28 |
| ZA881680B (enExample) | 1988-09-07 |
| AU1358688A (en) | 1988-09-22 |
| CH676980A5 (enExample) | 1991-03-28 |
| US4880455A (en) | 1989-11-14 |
| GB2202523B (en) | 1991-03-13 |
| GB8806435D0 (en) | 1988-04-20 |
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