EP3946771A1 - Utilisation d'au moins une huile végétale époxydée ou un de ses dérivés dans des sols pollués - Google Patents
Utilisation d'au moins une huile végétale époxydée ou un de ses dérivés dans des sols polluésInfo
- Publication number
- EP3946771A1 EP3946771A1 EP20728533.9A EP20728533A EP3946771A1 EP 3946771 A1 EP3946771 A1 EP 3946771A1 EP 20728533 A EP20728533 A EP 20728533A EP 3946771 A1 EP3946771 A1 EP 3946771A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- epoxidized
- vegetable oil
- oil
- epoxidized vegetable
- use according
- 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.)
- Withdrawn
Links
- 235000015112 vegetable and seed oil Nutrition 0.000 title claims abstract description 81
- 239000008158 vegetable oil Substances 0.000 title claims abstract description 81
- 239000002689 soil Substances 0.000 title claims abstract description 75
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000003549 soybean oil Substances 0.000 claims description 27
- 235000012424 soybean oil Nutrition 0.000 claims description 27
- 241000894006 Bacteria Species 0.000 claims description 22
- 244000005700 microbiome Species 0.000 claims description 21
- 235000015097 nutrients Nutrition 0.000 claims description 17
- 239000000126 substance Substances 0.000 claims description 15
- 125000003700 epoxy group Chemical group 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 14
- 150000002148 esters Chemical class 0.000 claims description 11
- 229930195733 hydrocarbon Natural products 0.000 claims description 9
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 9
- 150000002430 hydrocarbons Chemical class 0.000 claims description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 150000003071 polychlorinated biphenyls Chemical class 0.000 claims description 6
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 claims description 6
- 235000021122 unsaturated fatty acids Nutrition 0.000 claims description 6
- 238000006735 epoxidation reaction Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- -1 polycyclic hydrocarbons Chemical class 0.000 claims description 5
- 150000004670 unsaturated fatty acids Chemical class 0.000 claims description 5
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 claims description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 4
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 claims description 4
- WDECIBYCCFPHNR-UHFFFAOYSA-N chrysene Chemical compound C1=CC=CC2=CC=C3C4=CC=CC=C4C=CC3=C21 WDECIBYCCFPHNR-UHFFFAOYSA-N 0.000 claims description 4
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 claims description 4
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 claims description 4
- 235000000346 sugar Nutrition 0.000 claims description 4
- 150000008163 sugars Chemical class 0.000 claims description 4
- 150000003626 triacylglycerols Chemical class 0.000 claims description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 3
- FMMWHPNWAFZXNH-UHFFFAOYSA-N Benz[a]pyrene Chemical compound C1=C2C3=CC=CC=C3C=C(C=C3)C2=C2C3=CC=CC2=C1 FMMWHPNWAFZXNH-UHFFFAOYSA-N 0.000 claims description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 2
- 235000019482 Palm oil Nutrition 0.000 claims description 2
- 235000019483 Peanut oil Nutrition 0.000 claims description 2
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 claims description 2
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 2
- 235000019486 Sunflower oil Nutrition 0.000 claims description 2
- XBDYBAVJXHJMNQ-UHFFFAOYSA-N Tetrahydroanthracene Natural products C1=CC=C2C=C(CCCC3)C3=CC2=C1 XBDYBAVJXHJMNQ-UHFFFAOYSA-N 0.000 claims description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 2
- 229960000411 camphor oil Drugs 0.000 claims description 2
- 239000010624 camphor oil Substances 0.000 claims description 2
- 239000004359 castor oil Substances 0.000 claims description 2
- 235000019438 castor oil Nutrition 0.000 claims description 2
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 2
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 claims description 2
- 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 description 2
- 239000000944 linseed oil Substances 0.000 claims description 2
- 235000021388 linseed oil Nutrition 0.000 claims description 2
- 239000002540 palm oil Substances 0.000 claims description 2
- 239000000312 peanut oil Substances 0.000 claims description 2
- 239000002600 sunflower oil Substances 0.000 claims description 2
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 claims description 2
- 229950011008 tetrachloroethylene Drugs 0.000 claims description 2
- 239000008096 xylene Substances 0.000 claims description 2
- 239000002957 persistent organic pollutant Substances 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000000839 emulsion Substances 0.000 description 7
- 230000035699 permeability Effects 0.000 description 5
- 238000004587 chromatography analysis Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 150000004702 methyl esters Chemical class 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- NZTGGRGGJFCKGG-UHFFFAOYSA-N 1,4-diamino-2,3-diphenoxyanthracene-9,10-dione Chemical compound C=1C=CC=CC=1OC1=C(N)C=2C(=O)C3=CC=CC=C3C(=O)C=2C(N)=C1OC1=CC=CC=C1 NZTGGRGGJFCKGG-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 230000031018 biological processes and functions Effects 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- VPUGDVKSAQVFFS-UHFFFAOYSA-N coronene Chemical compound C1=C(C2=C34)C=CC3=CC=C(C=C3)C4=C4C3=CC=C(C=C3)C4=C2C3=C1 VPUGDVKSAQVFFS-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 235000013379 molasses Nutrition 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 239000002426 superphosphate Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 1
- LJGHYPLBDBRCRZ-UHFFFAOYSA-N 3-(3-aminophenyl)sulfonylaniline Chemical compound NC1=CC=CC(S(=O)(=O)C=2C=C(N)C=CC=2)=C1 LJGHYPLBDBRCRZ-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 241000590020 Achromobacter Species 0.000 description 1
- 241000589291 Acinetobacter Species 0.000 description 1
- 241000588986 Alcaligenes Species 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- 241000186063 Arthrobacter Species 0.000 description 1
- 240000002900 Arthrospira platensis Species 0.000 description 1
- 235000016425 Arthrospira platensis Nutrition 0.000 description 1
- 241000726110 Azoarcus Species 0.000 description 1
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 241000186146 Brevibacterium Species 0.000 description 1
- 229920002101 Chitin Polymers 0.000 description 1
- 241000186216 Corynebacterium Species 0.000 description 1
- 241000605056 Cytophaga Species 0.000 description 1
- 241001245615 Dechloromonas Species 0.000 description 1
- 241000205085 Desulfobacter Species 0.000 description 1
- 241000588914 Enterobacter Species 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 241000589565 Flavobacterium Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241001135750 Geobacter Species 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 241000588748 Klebsiella Species 0.000 description 1
- 241000186660 Lactobacillus Species 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 241000190573 Leucothrix Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241000192041 Micrococcus Species 0.000 description 1
- 241000187654 Nocardia Species 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- 241000589180 Rhizobium Species 0.000 description 1
- 241000736131 Sphingomonas Species 0.000 description 1
- 241000605008 Spirillum Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 241000588679 Thermomicrobium Species 0.000 description 1
- 241000607598 Vibrio Species 0.000 description 1
- 241000589634 Xanthomonas Species 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- DVARTQFDIMZBAA-UHFFFAOYSA-O ammonium nitrate Chemical class [NH4+].[O-][N+]([O-])=O DVARTQFDIMZBAA-UHFFFAOYSA-O 0.000 description 1
- KNQKRMVYLDOGCT-UHFFFAOYSA-N ammonium phosphate sulfate Chemical compound [NH4+].[NH4+].OP(O)([O-])=O.OS([O-])(=O)=O KNQKRMVYLDOGCT-UHFFFAOYSA-N 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- NGLMYMJASOJOJY-UHFFFAOYSA-O azanium;calcium;nitrate Chemical class [NH4+].[Ca].[O-][N+]([O-])=O NGLMYMJASOJOJY-UHFFFAOYSA-O 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000004434 industrial solvent Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229940039696 lactobacillus Drugs 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 239000006012 monoammonium phosphate Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 150000004967 organic peroxy acids Chemical class 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 229940082787 spirulina Drugs 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Definitions
- the present invention relates to the use of at least one epoxidized vegetable oil and / or at least one of its derivatives as a source of carbon in polluted soils, in particular for the bioremediation of polluted soils, more particularly to improve the bioremediation of polluted soils.
- the invention also relates to a method of bioremediation of polluted soil (s) comprising at least one step of injecting into a polluted soil an organic or hydro-organic composition comprising at least one epoxidized vegetable oil and / or at least one of its derivatives.
- Such processes have the advantage of being able to be operated on a large scale while being based on natural phenomena in order to reduce the quantities of extractable pollutants below the standards established in a period of time limiting the risks of dispersion or more contamination. wide.
- bioremediation typically designates biological processes using living organisms, most often microscopic, such as bacteria, microalgae or fungi, or even organisms such as plant species (in the case of phytoremediation), in order to degrade pollutants.
- bioremediation processes are treatments capable of taking advantage of the natural capacity possessed by organisms, in particular microorganisms, to decompose polluting substances. Bioremediation can take place under aerobic conditions and in some cases under anaerobic conditions. [0008] Bioremediation processes make it possible in particular to effectively clean up sites, such as soil or groundwater, most often contaminated by the presence of petroleum hydrocarbons or chlorinated solvents, or others by breaking them down thanks to the presence of bacteria.
- Bioremediation processes are generally based on organisms already present in contaminated sites (called indigenous organisms) or added to them (exogenous organisms adapted to the pollutants to be treated). Alternatively, such organisms can be collected from the contaminated site, cultivated in the laboratory and then reintroduced into the soil to increase the degradation of the contaminants.
- the natural capacity possessed by microorganisms, in particular bacteria, to biologically degrade the polluting substances present in contaminated sites can be increased thanks to the supply of nutrients, such as for example fertilizers, sources of carbon, trace elements and others, as well as possibly by adjusting the conditions of the medium, such as humidity and / or the oxidation-reduction potential of the medium.
- nutrients such as for example fertilizers, sources of carbon, trace elements and others
- the fertilizers preferably include nitrates, such as ammonium nitrates, nitrophosphates, ammonium phosphate sulfate, ammonium sulfate, calcium ammonium nitrates, calcium nitrate, sodium phosphate. diammonium, potassium chloride, monoammonium phosphate, sulphate of potash, sulphate of potash and magnesium, simple superphosphate, triple superphosphate, urea, sulfur, polyhalite and other complexes or mixture of fertilizers that contain several elements, for example those known by the acronym NPK.
- nitrates such as ammonium nitrates, nitrophosphates, ammonium phosphate sulfate, ammonium sulfate, calcium ammonium nitrates, calcium nitrate, sodium phosphate. diammonium, potassium chloride, monoammonium phosphate, sulphate of potash, sulphate of potash and magnesium, simple superphosphat
- the in situ activity of microorganisms in particular bacteria, can be stimulated by the addition of nutrients which will increase their development in order to improve the bioremediation of polluted sites.
- Such nutrients are preferably biodegradable and can be chosen from sugars, for example glucose, lactose or molasses, chitin, or even vegetable oils, for example soybean oil.
- patent application WO2004020339 describes the use of an emulsion containing soybean oil in contaminated soil and groundwater in order to promote bioremediation by microorganisms.
- patent application WO2014152350 describes compositions comprising in particular spirulina and lecithin in the form of powders.
- nutrients having a low viscosity can diffuse too quickly in the media to be decontaminated, especially in the case of injection into permeable soils, which has the disadvantage that the latter are not sufficiently available to increase the development of microorganisms, in particular bacteria.
- one of the objectives of the present invention is to provide one or more compounds having qualities of biodegradability, bioavailability and diffusion in the media to be decontaminated which are satisfactory in order to effectively stimulate the activity in situ microorganisms present in contaminated sites.
- one of the objectives of the present invention is to replace the compounds conventionally used as nutrients during bioremediation operations of polluted sites, in order to improve the bioremediation of said sites to be decontaminated, in particular of soils to clean up.
- a particular subject of the present invention is therefore the use of at least one epoxidized vegetable oil and / or at least one of its derivatives as a source of carbon in polluted soils. More particularly, the subject of the invention is the use of at least one epoxidized vegetable oil and / or of at least one of its derivatives in polluted soils, as a source of carbon for microorganisms, in particular bacteria.
- the use of at least one epoxidized vegetable oil and / or at least one of its derivatives as a carbon source makes it possible to effectively increase the development of microorganisms, in particular bacteria, and to stimulate their activity in situ for the bioremediation of sites to be decontaminated, and in particular with a view to improving the bioremediation of sites to be decontaminated.
- the epoxidized vegetable oils or derivatives of epoxidized vegetable oils exhibit an advantageous diffusion in the soils to be decontaminated, in particular in the soils having a more or less important permeability, as well as suitable parameters of biodegradability and bioavailability. in order to effectively stimulate the natural capacity of microorganisms to biologically degrade polluting substances found in such soils.
- Epoxidized vegetable oils as well as epoxidized vegetable oil derivatives have the particular advantage of being more effective as nutrients, providing a source of carbon for microorganisms in soils having more or less permeability. important, than their non-epoxidized counterparts, in particular compared to an identical vegetable oil free of group
- epoxidized vegetable oils as well as epoxidized vegetable oil derivatives diffuse more slowly in soils having a greater or lesser permeability which makes them more available biologically as a source of carbon for microorganisms. , in particular bacteria, that an identical vegetable oil free of epoxy group.
- the epoxidized vegetable oils and / or their derivatives used according to the invention make it possible to further stimulate the in situ activity of microorganisms, in particular bacteria, by increasing their development, and to further increase bioremediation. soils to be decontaminated with respect to a vegetable oil free of epoxy group.
- the epoxidized vegetable oils or their derivatives according to the invention can be easily formulated in a water-in-oil or oil-in-water emulsion, and prove to be more stable than a conventional vegetable oil free. epoxy group formulated under the same conditions.
- epoxidized vegetable oils and / or their derivatives may turn out to be less soluble in water than certain nutrients such as molasses which also makes them more efficient in permeable soils.
- the epoxidized vegetable oils and / or their derivatives used according to the invention are more advantageous as a carbon source for microorganisms, in particular for bacteria, than the nutrients conventionally used up to present. More generally, thanks to their viscosity, their solubility, their biodegradability as well as their bioavailability, epoxidized vegetable oils and / or their derivatives according to the invention are nutrients which can be used in a versatile manner depending on their formulations and applications, that is, their parameters allow them to adapt effectively to different types of soil.
- Another object of the present invention relates to a process for the bioremediation of polluted soils comprising at least one step of injecting into a soil an organic or hydro-organic composition comprising at least one epoxidized vegetable oil and / or at least an epoxidized vegetable oil derivative.
- an organic or hydro-organic composition comprising at least one epoxidized vegetable oil and / or at least one of its derivatives as defined above in a polluted soil allows to increase the 'in situ activity of microorganisms and to increase their ability to biologically degrade the pollutants present in such soil.
- the process according to the invention makes it possible to stimulate the in situ biodegradation of polluted soils.
- the method according to the invention makes it possible to increase the development of microorganisms, in particular bacteria, in polluted soils and, consequently, to accelerate bioremediation.
- the present invention relates to the use of at least one epoxidized vegetable oil and / or at least one of its derivatives as a source of carbon in polluted soils.
- the epoxidized vegetable oil and / or a derivative thereof is (or are) used as a source of carbon for microorganisms, in particular for bacteria, present in polluted soils.
- the epoxidized vegetable oil and / or one of its derivatives is (or are) used as a carbon source to stimulate and thus improve the in situ activity of bacteria.
- epoxidized vegetable oil and / or a derivative thereof is (or are) used as a source of carbon to increase the development of bacteria and stimulate their natural ability to degrade biologically. polluting substances found in contaminated soils.
- the bacteria or bacteria present in the polluted soils can be of any known genus, bacteria of the genus Pseudomonas, Achromobacter, Arthrobacter, Bacillus, Lactobacillus, Micrococcus, Nocardia, Vibrio, Acinetobacter, Brevibacterium, Corynebacterium, Flavobacterium, Leucothrix, Rhizobium, Spirillum, Xanthomonas, Alcaligenes, Cytophaga, Thermomicrobium, Klebsiella, Enterobacter, Blastochlorer, Thaurea, Azoarcus, Dechloromonas, Geobacter, Sphingomonas, Desborobacter, Deulfobacter or Desulfobacter, Desulospillo ⁇ 1 ⁇ 2, Desulospillo ⁇ 1 or Deshalospillo ⁇ 1 combination of two or more of these.
- the bacteria or bacteria present in the polluted soils is (or are) preferably anaerobic bacteria.
- the epoxidized vegetable oil and / or a derivative thereof is (or are) used to improve the bioremediation of polluted soils.
- the epoxidized vegetable oil and / or a derivative thereof is (or are) used to accelerate the bioremediation of polluted soils.
- the polluted soil (s) likely to be treated by the present invention comprises (s) one or more organic polluting substances.
- the polluted soil (s) likely to be treated by the present invention comprises (s) one or more organic polluting substance (s) chosen ( s) in the group consisting of hydrocarbons, in particular linear C6-C30 hydrocarbons, cyclic hydrocarbons, polycyclic hydrocarbons, solvents, in particular halogenated solvents, or their mixtures, and in particular chlorinated solvents, or their mixtures.
- organic polluting substance chosen ( s) in the group consisting of hydrocarbons, in particular linear C6-C30 hydrocarbons, cyclic hydrocarbons, polycyclic hydrocarbons, solvents, in particular halogenated solvents, or their mixtures, and in particular chlorinated solvents, or their mixtures.
- the polluted soil (s) capable of being treated by the present invention comprises (s) one or more selected organic polluting substance (s) (s) ( s) in the group consisting of hexane, octane, benzene, toluene, ethylbenzene, xylene, polycyclic aromatic hydrocarbons (PAHs) such as anthracene, naphthalene, pyrene, tetracene, coronene, benzopyrene, chrysene, phenanthrene, polychlorinated biphenyls (PCBs), chlorinated solvents, such as for example tetrachlorethylene, trichlorethylene, and mixtures thereof.
- PHAs polycyclic aromatic hydrocarbons
- PCBs polychlorinated biphenyls
- the polluted soil (s) capable of being treated by the present invention comprises (s) one or more polluting substance (s) organic (s) chosen from the group consisting of hydrocarbons, preferably hexane, octane, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), halogenated solvents, in particular chlorinated solvents, and their mixtures.
- polluting substance s
- organic chosen from the group consisting of hydrocarbons, preferably hexane, octane, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), halogenated solvents, in particular chlorinated solvents, and their mixtures.
- the polluted soil (s) likely to be treated by the present invention comprises (s) one or more organic polluting substance (s) ) chosen from halogenated solvents, in particular chlorinated solvents, and mixtures thereof.
- Epoxidized vegetable oils and / or their epoxidized vegetable oil derivatives which can be used in the context of the present invention are effective for all ranges of permeability of soils, and more particularly for permeable to very permeable soils.
- the epoxidized vegetable oil and / or its derivatives have (have) a viscosity ranging from 4 mPa.s to 700 mPa.s, in particular ranging from 25 mPa.s to 650 mPa.s, measured at a temperature of 25 ° C, as measured for example using an Ostwald type viscometer.
- the epoxidized vegetable oil (s) used according to the invention is or are in particular liquid triglycerides of unsaturated fatty acids C6-C30, preferably C10-C24, in particular in C12-C22, and which have undergone an epoxidation reaction, that is to say comprising at least one epoxide function.
- the epoxidized vegetable oils according to the invention are preferably prepared from:
- unsaturated fatty acids means that the fatty chain contains at least one unsaturation, preferably in the form of a double bond, which can be involved in an epoxidation reaction as indicated above.
- the epoxidized vegetable oil (s) used (s) according to the invention comprises (s) in its or their structure at least one epoxy group.
- the vegetable oils according to the invention are in particular liquid triglycerides of unsaturated fatty acids C6-C30, preferably C14-C22, in particular C12-C22, comprising in their structure at minus one epoxy group.
- liquid is meant within the meaning of the present invention that the vegetable oil is liquid at a temperature of 25 ° C and at atmospheric pressure (760 mm Hg, ie 1013.25 hPa).
- the epoxidized vegetable oil (s) according to the invention comprises (s) a number of epoxy groups ranging from 1 to 9, preferably ranging from 1 to 6, preferably still going from 2 to 6.
- the epoxidized vegetable oil used according to the invention is chosen from the group consisting of epoxidized soybean oil, epoxidized palm oil, epoxidized rapeseed oil, epoxidized linseed oil, epoxidized sunflower oil, epoxidized peanut oil, epoxidized camphor oil, epoxidized castor oil, and mixtures thereof.
- the epoxidized vegetable oil used in the invention is the epoxidized soybean oil, particularly epoxidized soybean oil sold under the trade name Vikoflex ® 7177 (obtained in the presence of formic acid) and Vikoflex ® 7170 (obtained in the presence of acetic acid) by the company Arkema.
- an epoxidized vegetable oil derivative is understood to mean a compound which has been synthesized from a vegetable oil as described above.
- an epoxidized vegetable oil derivative corresponds to a vegetable oil which has been chemically modified, or a compound obtained after opening one or more epoxy rings (i.e. epoxy group) of said epoxidized vegetable oil.
- the present invention relates to the use of at least one epoxidized vegetable oil and / or at least one epoxidized vegetable oil ester (trans-esterification of vegetable oil).
- the epoxidized vegetable oil ester used in the context of the present invention is more particularly chosen from the group consisting of methyl esters of epoxidized vegetable oil.
- the epoxidized vegetable oil ester used according to the invention is a methyl ester of epoxidized soybean oil, in particular that sold under the trade names ® Vikoflex 7010 by Arkema.
- the present invention relates to the use of at least one epoxidized vegetable oil and / or at least one ester of an epoxidized vegetable oil as a source of carbon in polluted soils. More preferably, the invention relates to the use of an epoxidized soybean oil and / or an epoxidized soybean oil ester as a source of carbon in polluted soils.
- the epoxidized soybean oil and / or the epoxidized soybean oil ester is used to improve the bioremediation of polluted soils, in particular to accelerate the bioremediation of soils.
- the invention relates to the use of epoxidized soybean oil as a carbon source in polluted soils.
- the invention also relates to the use of an ester of epoxidized soybean oil as a carbon source in polluted soils.
- the epoxidized soybean oil methyl ester is used as a carbon source in polluted soils.
- the invention also relates to the use of an epoxidized soybean oil and an ester of an epoxidized soybean oil as a source of carbon in polluted soils.
- the epoxidized vegetable oil and / or one of its derivatives can be used (s) as a source of carbon in polluted soils in combination with one or more other nutrients.
- these nutrients are chosen from the group consisting of sugars or vegetable oils free from epoxy groups.
- the invention also relates to a method of bioremediation of polluted soils comprising at least one step of injecting into at least one zone of polluted soil, as defined above, or near such a zone, of a composition, organic or hydroorganic, comprising at least one epoxidized vegetable oil and / or one of its derivatives as defined above.
- the soil comprises one or more organic substances as defined above.
- the epoxidized vegetable oil and / or one of its derivatives is in a content ranging from 1 to 100% by weight, preferably ranging from 5 to 100% by weight, preferably ranging from 10 to 100% by weight, preferably ranging from 20% to 100% by weight relative to the total weight of the composition.
- composition can also comprise one or more nutrients such as sugars or vegetable oils free from epoxy groups.
- the composition comprises at least one epoxidized vegetable oil and / or at least one ester of an epoxidized vegetable oil.
- Emulsions comprising 30 g of tap water, 70 g of organic compound (soybean oil, commercial products Vikoflex 7177 and Vikoflex ® ® 7170) and 0.1 g of a dye (Solvent Violet 59, CI62025, CAS 6408-72-6) were prepared by rapid stirring for a period of 15 minutes in a closed container using a bar magnet.
- the dye used is organic in nature and is only soluble in the organic phase of the emulsions prepared.
- the dye is used to visualize the state of progress of the organic phase. A verification by total carbon analysis confirmed that very little (content less than
- a chromatography column (diameter 3 cm), with sintered glass disc and stopcock was filled (stopcock closed) with 10 cm of soil from Saint-Auban (valley of the
- the column was filled with water to the upper level of the ground.
- the chromatography column was then pressurized with a constant air flow, controlled by a Brooks R2 15C flowmeter.
- a stopwatch was started when the tap was opened in order to measure the time for the emulsion to percolate through the soil.
- epoxidized soybean oil marketed under the name Vikoflex ® 7177
- epoxidized soybean oil marketed under the name Vikoflex ® 7170
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Mycology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1903382A FR3094244B1 (fr) | 2019-03-29 | 2019-03-29 | Utilisation d’au moins une huile végétale époxydée ou un de ses dérivés dans des sols pollués |
PCT/FR2020/050584 WO2020201657A1 (fr) | 2019-03-29 | 2020-03-18 | Utilisation d'au moins une huile végétale époxydée ou un de ses dérivés dans des sols pollués |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3946771A1 true EP3946771A1 (fr) | 2022-02-09 |
Family
ID=67742637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20728533.9A Withdrawn EP3946771A1 (fr) | 2019-03-29 | 2020-03-18 | Utilisation d'au moins une huile végétale époxydée ou un de ses dérivés dans des sols pollués |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220176427A1 (fr) |
EP (1) | EP3946771A1 (fr) |
FR (1) | FR3094244B1 (fr) |
WO (1) | WO2020201657A1 (fr) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6806078B2 (en) | 2002-08-27 | 2004-10-19 | William A. Newman | Substrate and method for anaerobic remediation |
JP2008037921A (ja) * | 2006-08-02 | 2008-02-21 | Meidensha Corp | 絶縁性高分子材料組成物 |
TW200904365A (en) * | 2007-07-03 | 2009-02-01 | Biosphere Ind Llc | Biodegradable and compostable composition having improved physical and chemical properties |
US9139458B2 (en) * | 2013-03-15 | 2015-09-22 | Janet Angel | Compositions and methods of use |
US20150076398A1 (en) * | 2013-09-16 | 2015-03-19 | John Archibald | Bioremediation of soil and groundwater |
CN106479507A (zh) * | 2016-09-14 | 2017-03-08 | 浙江阿凡柯达环保科技有限公司 | 一种土壤复合修复剂及其在去除土壤中重金属的应用 |
-
2019
- 2019-03-29 FR FR1903382A patent/FR3094244B1/fr active Active
-
2020
- 2020-03-18 WO PCT/FR2020/050584 patent/WO2020201657A1/fr unknown
- 2020-03-18 US US17/442,910 patent/US20220176427A1/en not_active Abandoned
- 2020-03-18 EP EP20728533.9A patent/EP3946771A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR3094244A1 (fr) | 2020-10-02 |
WO2020201657A1 (fr) | 2020-10-08 |
US20220176427A1 (en) | 2022-06-09 |
FR3094244B1 (fr) | 2022-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0605308B1 (fr) | Composition contenant un composé tensio-actif et des glycolipides et procédé de décontamination d'un milieu poreux pollué | |
Varsha et al. | An emphasis on xenobiotic degradation in environmental cleanup | |
Muthukumar et al. | Characterization of two novel strains of Pseudomonas aeruginosa on biodegradation of crude oil and its enzyme activities | |
CA2698496A1 (fr) | Bioremediation de sols contamines par ajout de substrat naturel contenant des nutriments | |
Yanto et al. | Enhanced biodegradation of asphalt in the presence of Tween surfactants, Mn2+ and H2O2 by Pestalotiopsis sp. in liquid medium and soil | |
FR2904248A1 (fr) | Procede de traitement bio-assiste d'un sol contamine par des hydrocarbures. | |
Zhou et al. | Enhanced remediation of oil-contaminated intertidal sediment by bacterial consortium of petroleum degraders and biosurfactant producers | |
Gouda et al. | Evaluation of phytoremediation and bioremediation for sandy soil contaminated with petroleum hydrocarbons | |
Sharma et al. | Pseudomonas in biodegradation | |
EP1121331B1 (fr) | Procede microbiologique d'elimination d'un compose nitroaromatique | |
EP3946771A1 (fr) | Utilisation d'au moins une huile végétale époxydée ou un de ses dérivés dans des sols pollués | |
CA2613847C (fr) | Utilisation d'archaea sulfato-reductrices thermophiles pour la mise en oeuvre d'un procede de degradation d'hydrocarbures | |
Singh et al. | Biodegradation of phenolic derivatives by Rhodosporidium toruloides: Effect on growth, cell morphology, lipid and biodiesel production | |
Zhou et al. | Relationship between enantioselective transformation of racemic quizalofop‐ethyl and soil bacterial diversity: A destructive approach | |
JP4532415B2 (ja) | 油類及び毒性化学物質分解用の微生物製剤 | |
EP0712809B1 (fr) | Procédé de prétraitement enzymatique des déblais de forage | |
de Oliveira Santos et al. | Use of bioremediation for the removal of petroleum hydrocarbons from the soil: an overview | |
EP0562914B1 (fr) | Procédé de lavage de particules solides comportant une solution de sophorosides | |
EP1098950B1 (fr) | Procede d'utilisation de boues de forage biodegradables | |
Filatov et al. | Biodegradation of high-viscous oil in model soil system | |
Afkar et al. | Effective removal of alkanes and polycyclic aromatic hydrocarbons by bacteria from soil chronically exposed to crude petroleum oil | |
Filatov et al. | Biochemical oxidation of used petroleum-based oils | |
Sarwan et al. | Degradation potential of various enzymes in bioremediation of toxic contaminants | |
FR2713655A1 (fr) | Procédé de décontamination d'un milieu poreux pollué par des hydrocarbures utilisant une composition contenant un composé tensio-actif et des glycolipides. | |
Baranger | Polycyclic aromatic hydrocarbon biodegradation for soil bioremediation: potential of microfluidics to understand benzo [a] pyrene uptake by the filamentous fungus Talaromyces helicus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20210907 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20230524 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20231205 |