EP0368041A1 - Briquettes de charbon ayant une absorption d'eau diminuée et procédé pour sa préparation - Google Patents
Briquettes de charbon ayant une absorption d'eau diminuée et procédé pour sa préparation Download PDFInfo
- Publication number
- EP0368041A1 EP0368041A1 EP89119246A EP89119246A EP0368041A1 EP 0368041 A1 EP0368041 A1 EP 0368041A1 EP 89119246 A EP89119246 A EP 89119246A EP 89119246 A EP89119246 A EP 89119246A EP 0368041 A1 EP0368041 A1 EP 0368041A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- briquettes
- radical
- starch
- formula
- coal
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000003245 coal Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 230000003292 diminished effect Effects 0.000 title 1
- 229920002472 Starch Polymers 0.000 claims abstract description 22
- 235000019698 starch Nutrition 0.000 claims abstract description 22
- 239000008107 starch Substances 0.000 claims abstract description 22
- 150000003961 organosilicon compounds Chemical class 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 229910020175 SiOH Inorganic materials 0.000 claims abstract description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910000077 silane Inorganic materials 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 229920000881 Modified starch Polymers 0.000 claims abstract description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 235000019426 modified starch Nutrition 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 3
- 239000006185 dispersion Substances 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 239000011593 sulfur Chemical group 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 150000002894 organic compounds Chemical class 0.000 claims description 3
- CIUQDSCDWFSTQR-UHFFFAOYSA-N [C]1=CC=CC=C1 Chemical compound [C]1=CC=CC=C1 CIUQDSCDWFSTQR-UHFFFAOYSA-N 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 description 24
- -1 carbohydrate ethers Chemical class 0.000 description 19
- 239000011230 binding agent Substances 0.000 description 15
- 150000003254 radicals Chemical class 0.000 description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000003995 emulsifying agent Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920002261 Corn starch Polymers 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 2
- 239000003830 anthracite Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 235000014633 carbohydrates Nutrition 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229920000151 polyglycol Polymers 0.000 description 2
- 239000010695 polyglycol Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000004449 solid propellant Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000003626 triacylglycerols Chemical class 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 235000019759 Maize starch Nutrition 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 125000004202 aminomethyl group Chemical group [H]N([H])C([H])([H])* 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical compound C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 235000021190 leftovers Nutrition 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000020354 squash Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- CHJMFFKHPHCQIJ-UHFFFAOYSA-L zinc;octanoate Chemical compound [Zn+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O CHJMFFKHPHCQIJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
- C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
- C10L5/14—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders
Definitions
- the invention relates to hard coal briquettes bound with starch or starch derivatives and having a reduced water absorption capacity, and to processes for producing such briquettes.
- bitumen or sulfite waste liquor in particular have been used as binders.
- both binders contain a high proportion of sulfur, so that considerable amounts of sulfur dioxide were produced when the briquettes were burned.
- DE-OS 33 14 764 describes a process for producing fuel briquettes in the presence of synthetic organic compounds as binders, using an essentially solid fuel, polyvinyl alcohol and calcium oxide and / or magnesium oxide, in the presence of at least 1% by weight.
- the combustion exhaust gases of such briquettes contain significantly reduced SO2 contents.
- DE-OS 34 45 503 relates to a process for the production of briquettes from hard coal and a binder, in which aqueous alkali silicate solutions are used as binders, the solidification taking place by absorption of carbon dioxide and can additionally be accelerated by gassing with carbonic acid.
- DE-PS 17 71 433 discloses a process for the production of moldings from fine-grained substances, in particular fuels, in which sulfite waste liquor is mixed with higher-temperature solids, water-soluble adhesives, in particular molasses, starch and / or dextrins, being used instead of the sulfite waste liquor. can be used as a binder.
- starch as a binder for briquetting fine coal is also described in DE-OS 31 36 163 and 32 27 395. 3 to 8% by weight of sulfite waste liquor or alternatively 1 to 3% by weight of starch, in each case based on coal, are mentioned as binders.
- DE-PS 10 10 950 shows a process for the production of fuel briquettes, in which the starting material is treated with a binder obtained by reaction of one or more higher carbohydrates or carbohydrate ethers with a dilute aqueous solution of a carboxylic acid, and is formed into briquettes under pressure and the briquettes are dried if necessary.
- starch and starch derivatives in particular have found particular interest.
- Starch is a product available at reasonable prices and in any quantity, which is characterized by particular environmental compatibility in handling and burning.
- a disadvantage of starch is its hydrophilicity. Briquettes bound with starch absorb water from their surroundings, reducing their compressive strength. This affects storage and handling strength in particular. The briquettes also lose calorific value due to water absorption. There is also the risk that briquettes bound with starch, which have a certain water content, will be attacked by microorganisms and mold will form.
- organopolysiloxanes for hydrophobizing inorganic or organic products has been known for a long time.
- silicones for this purpose, however, it is necessary to find silicone preparations which are effective even in small amounts.
- the silicone preparations should be as free of solvents as possible and reduce the water absorption of the briquettes in such a way that the desired storage and handling stability is given.
- the polysiloxanols of the formula I are essentially ⁇ , ⁇ -dimethylsiloxanols, although some methyl radicals can be replaced by phenyl radicals. However, at least 90% of the R 1 radicals are said to be methyl radicals.
- the average chain length of the polysiloxanols is given by the index n. It is 20 to 250, preferably 30 to 80, in particular 50 to 70.
- the silane of formula II is characterized by the presence of the reactive groups OR2 and R3.
- R2 is a lower alkyl radical having 1 to 4 carbon atoms and in particular a straight-chain lower alkyl radical.
- the ethyl radical is particularly preferred.
- the R3 radical is an aminoalkyl radical having 1 to 6 carbon atoms. Examples of such aminoalkyl radicals are the aminomethyl, ⁇ -aminopropyl and ⁇ or ⁇ -aminobutyl radical.
- R3 is preferably the ⁇ -aminopropyl radical.
- R3 can also have the meaning of the radical H2N- (CH2) x R4 (CH2) y -, where R4 is an oxygen, sulfur, -NH or -NH-CH2CH2-NH radical, x ⁇ 3 and y ⁇ 2 is. Examples of this are the Leftovers H2N- (CH2) 3-NH- (CH2) 2-, H2N- (CH2) 2-O- (CH2) 2-, H2N- (CH2) 3-NH- (CH2) 2-NH- (CH2) 3 -.
- the radical R3 can also be an epoxyalkyl radical of the formula where n is an integer from 1 to 6.
- the glycidyl radical is in particular the epoxyalkyl radical prefers.
- the compounds of the general formula I and the general formula II are mixed with one another in such amounts that an SiOH group of the polysiloxanol corresponds to> 1 to 3 OR 2 groups.
- the molar ratio of 1 SiOH group of the polysiloxanol of the formula I to 2 OR 2 groups of the silane of the formula II is preferred. Reaction products which are obtained if a ratio of 1 SiOH group to 1 SiOR 2 group is observed clearly show poorer properties in reducing the water absorption capacity of the briquettes.
- the organopolysiloxane obtained can be used in the form thus obtained or as an aqueous dispersion.
- a suitable emulsifier e.g. an adduct of 8 to 12 moles of ethylene oxide with dodecyl alcohol or an adduct of 8 to 14 moles of ethylene oxide with nonylphenol or mixtures thereof, in an amount of about 10%, based on the reaction product, and then added in a manner known per se with water to a stable one , dilutable, highly concentrated emulsion.
- the concentration of the stock emulsion should advantageously be 30 to 60%. A concentration of 45 to 50% is preferred.
- an acid preferably acetic acid.
- the polyorganosiloxane preparation to be used according to the invention be used with a hardener known per se, such as e.g. Dibutyltin dilaurate or zinc octoate, in amounts of 1 to 8% by weight, based on organopolysiloxane, to be added.
- a hardener known per se, such as e.g. Dibutyltin dilaurate or zinc octoate
- a first process variant is characterized in that the organosilicon compounds, preferably in the form of an aqueous dispersion, are added to the aqueous solution of the gelatinized starch before mixing with the finely divided coal.
- organosilicon compounds preferably in the form of an aqueous dispersion, are mixed with the finely divided coal.
- the briquettes obtained have a water absorption which is uniformly reduced over the entire cross section.
- the shaping of the briquettes, which takes place in a manner known per se by pressing, is not impaired by the addition of the organosilicon compounds.
- Another process variant for producing the briquettes according to the invention is characterized in that the shaped briquettes are sprayed with a solution of the organic compounds or the briquettes are immersed in such a solution.
- Fine coal briquettes in the production of which the organopolysiloxanes to be used according to the invention have been used, or which have been treated with these organopolysiloxanes after being deformed, have excellent storage and handling strength.
- the calorific value of the briquettes is not impaired and there are no annoying emissions caused by the binder when the briquettes are burned.
- starch-bound briquettes are prevented from being attacked by microorganisms and forming mold. The manufacturing process of the fine coal briquettes is not affected.
- a mixture of 1000 g (0.147 mol) of dihydroxydimethylpolysiloxane and 43.4 g of ⁇ -aminopropyltriethoxysilane is heated to 180 ° C. while stirring and passing nitrogen through and kept at this temperature until 13.5 g of ethanol have distilled off. The process takes about 4 hours. The resulting product is cooled.
- 1000 g of this product are mixed with 100 g of an emulsifier mixture of an ethoxylated triglyceride with an HLB value of 18 and an ethoxylated fatty alcohol polyglycol ether with an HLB value of 11 (ratio 60:40) and 900 g of water with an ultrasound device to form an emulsion given.
- the emulsion obtained contains 50% by weight of the organopolysiloxane to be used according to the invention.
- 100 g of anthracite coal are mixed with 10 g of water and 7.5 g of the starch slurry containing the polysiloxane (1. a) or 1. b)).
- the mass is mixed in a kneader until the water content has dropped to 5%.
- the mass has been heated to 95 ° C.
- Pillow-shaped briquettes are produced in a heated stamp press under a short pressure of 100 kp / cm2 and cooled at room temperature. After 3 days of storage in air, the water absorption is determined after 24 hours by pressurized water storage.
- briquettes are made.
- the briquettes obtained are immersed in a solution of the polysiloxane to be used according to the invention, diluted to 5% active ingredient.
- the solution contains 6% by weight, based on organopolysiloxane, of dibutyltin dilaurate.
- the impregnated briquettes thus obtained are air-dried for 3 days. After this, the water absorption is also determined by storing it under pressure after 24 hours.
- starch-bound briquettes are produced in an analogous manner according to the prior art, but no polysiloxane is used in their manufacture, and their water absorption is determined.
- the heat resistance of the four briquettes obtained is also determined.
- the heat resistance provides information about the stability of the briquettes in the fire. To determine the briquettes are 20 min in one Muffle furnace heated to 800 ° C and then loaded in a test press until it breaks.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Silicon Polymers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3836940A DE3836940C1 (fr) | 1988-10-29 | 1988-10-29 | |
| DE3836940 | 1988-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0368041A1 true EP0368041A1 (fr) | 1990-05-16 |
| EP0368041B1 EP0368041B1 (fr) | 1992-01-08 |
Family
ID=6366190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89119246A Expired - Lifetime EP0368041B1 (fr) | 1988-10-29 | 1989-10-17 | Briquettes de charbon ayant une absorption d'eau diminuée et procédé pour sa préparation |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0368041B1 (fr) |
| DE (2) | DE3836940C1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006033775A1 (fr) * | 2004-09-17 | 2006-03-30 | Dow Corning Corporation | Composition de siloxane, agglomerat et procede de preparation de l'agglomerat |
| WO2012007385A1 (fr) | 2010-07-12 | 2012-01-19 | Siemens Vai Metals Technologies Gmbh | Procédé de production de produits pressés contenant des particules de carbone |
| WO2012007383A1 (fr) * | 2010-07-12 | 2012-01-19 | Siemens Vai Metals Technologies Gmbh | Procédé de production de produits pressés contenant des particules de carbone |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100548877C (zh) | 2004-04-08 | 2009-10-14 | 陶氏康宁公司 | 选择具有改进性能的硅的方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2330887A1 (de) * | 1973-06-16 | 1975-01-09 | Goldschmidt Ag Th | Verwendung von alkyl/aryl-alkoxypolysiloxanen zur impraegnierung |
| EP0324681A1 (fr) * | 1988-01-11 | 1989-07-19 | Roquette FrÀ¨res | Aggloméré combustible résistant à l'eau, procédé pour le préparer et composition de matières mise en oeuvre dans ce procédé |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3227395A1 (de) * | 1981-07-23 | 1983-11-10 | Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk, 5142 Hückelhoven | Verfahren zum herstellen von briketts fuer das festbett eines vergaserreaktors oder schachtofens |
| DE3136163A1 (de) * | 1981-09-12 | 1983-03-31 | Gewerkschaft Sophia-Jacoba Steinkohlenbergwerk, 5142 Hückelhoven | "verfahren zum kaltbrikettieren von feinkohle" |
| DE3314764A1 (de) * | 1983-04-23 | 1984-10-31 | Akzo Gmbh, 5600 Wuppertal | Brennstoffbriketts |
| DE3445503A1 (de) * | 1984-12-13 | 1986-06-19 | Woellner-Werke GmbH & Co, 6700 Ludwigshafen | Verfahren zur herstellung von briketts |
-
1988
- 1988-10-29 DE DE3836940A patent/DE3836940C1/de not_active Expired - Lifetime
-
1989
- 1989-10-17 EP EP89119246A patent/EP0368041B1/fr not_active Expired - Lifetime
- 1989-10-17 DE DE8989119246T patent/DE58900703D1/de not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2330887A1 (de) * | 1973-06-16 | 1975-01-09 | Goldschmidt Ag Th | Verwendung von alkyl/aryl-alkoxypolysiloxanen zur impraegnierung |
| EP0324681A1 (fr) * | 1988-01-11 | 1989-07-19 | Roquette FrÀ¨res | Aggloméré combustible résistant à l'eau, procédé pour le préparer et composition de matières mise en oeuvre dans ce procédé |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006033775A1 (fr) * | 2004-09-17 | 2006-03-30 | Dow Corning Corporation | Composition de siloxane, agglomerat et procede de preparation de l'agglomerat |
| US7737082B2 (en) | 2004-09-17 | 2010-06-15 | James Alan Rabe | Siloxane composition, agglomerate, and method of preparing |
| WO2012007385A1 (fr) | 2010-07-12 | 2012-01-19 | Siemens Vai Metals Technologies Gmbh | Procédé de production de produits pressés contenant des particules de carbone |
| WO2012007383A1 (fr) * | 2010-07-12 | 2012-01-19 | Siemens Vai Metals Technologies Gmbh | Procédé de production de produits pressés contenant des particules de carbone |
| CN102959058A (zh) * | 2010-07-12 | 2013-03-06 | 西门子Vai金属科技有限责任公司 | 含煤颗粒的压制品的制备方法 |
| CN102971403A (zh) * | 2010-07-12 | 2013-03-13 | 西门子Vai金属科技有限责任公司 | 含煤颗粒的压制品的制备方法 |
| CN102959058B (zh) * | 2010-07-12 | 2014-10-29 | 西门子Vai金属科技有限责任公司 | 含煤颗粒的压制品的制备方法 |
| CN102971403B (zh) * | 2010-07-12 | 2015-07-29 | 西门子Vai金属科技有限责任公司 | 含煤颗粒的压制品的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE58900703D1 (de) | 1992-02-20 |
| DE3836940C1 (fr) | 1990-05-17 |
| EP0368041B1 (fr) | 1992-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0157323B1 (fr) | Emulsion de résine silicone | |
| DE1519987B2 (de) | Stabile schaumregulierungsmittel | |
| DE3900644C2 (de) | Wasserbeständiges, brennbares Agglomerat und Verfahren zu dessen Herstellung | |
| EP0582879A1 (fr) | Polycondensats d'organosiloxane granulaire, leur préparation et emploi | |
| DE1519151C3 (de) | Gegen Wasser und Feuchtigkeit beständige Silkonüberzugsmasse | |
| EP0130521A1 (fr) | Emulsion de résines de polysiloxanes | |
| DE2638452A1 (de) | Zweikomponenten-siliconkautschuk | |
| EP0368041B1 (fr) | Briquettes de charbon ayant une absorption d'eau diminuée et procédé pour sa préparation | |
| DE2606273A1 (de) | Verfahren zur herstellung von hydrophobiermitteln | |
| CH640201A5 (de) | Verfahren zur behandlung von fein verteiltem kalk, gebranntem und geloeschtem kalk zur erhoehung seiner fliessfaehigkeit. | |
| EP0014419B1 (fr) | Agents anti-mousse substantiellement sans eau | |
| CH439724A (de) | Verfahren zur Herstellung Alkylwasserstoffpolysiloxane enthaltender wässeriger Emulsionen | |
| DE2330887A1 (de) | Verwendung von alkyl/aryl-alkoxypolysiloxanen zur impraegnierung | |
| DE3445503A1 (de) | Verfahren zur herstellung von briketts | |
| DE69605443T2 (de) | Umweltverträgliche, wässrige mullit-sole, mullit-zusammensetzungen und verfahren zu deren herstellung | |
| DE2154011C3 (de) | Verfahren zum Verbessern der verstärkenden Eigenschaften von feinteiligen Siliciumdioxid-Füllstoffen sowie nach diesem Verfahren erhaltener pyrogener Siliciumdioxid-Füllstoff | |
| DE2517380C3 (de) | Verfahren zur Herstellung von keramischen Siliziumnitridschaumkörpern bzw. Siliziumkarbidschaumkörpern | |
| DE4018439A1 (de) | Verfahren zur herstellung eines gegenueber wasser bestaendigen, brennbaren agglomerats | |
| DE69104428T2 (de) | Verfahren zur Herstellung von Agglomeraten und daraus hergestellte Produkte. | |
| EP0032664B1 (fr) | Agent hydrofuge pour des minéraux soufflés | |
| CH645245A5 (en) | Process for the preparation of a pesticide | |
| DE69008102T2 (de) | Verfahren zur Herstellung von Kalk-Sand-Mörtel, Sand-Kalk-Ziegel hieraus hergestellt und Vorrichtung zum Herstellen des Kalk-Sand-Mörtels. | |
| EP0433886A1 (fr) | Procédé de production d'une composition inorganique de matière solide contenant du baryum | |
| EP0960898A2 (fr) | Suspensions, procédé de préparation et leur emploi | |
| DE1015734B (de) | Verfahren zur Herstellung eines Calciumsilicatproduktes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| 17P | Request for examination filed |
Effective date: 19891025 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE DE FR GB NL |
|
| 17Q | First examination report despatched |
Effective date: 19910327 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE DE FR GB NL |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
| ET | Fr: translation filed | ||
| REF | Corresponds to: |
Ref document number: 58900703 Country of ref document: DE Date of ref document: 19920220 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19971008 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19971009 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19971024 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19971029 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19971211 Year of fee payment: 9 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981017 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981031 |
|
| BERE | Be: lapsed |
Owner name: TH. GOLDSCHMIDT A.G. Effective date: 19981031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990501 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19981017 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990630 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 19990501 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990803 |