-
公开(公告)号：DE3710804A1
公开(公告)日：1988-10-20
申请号：DE3710804
申请日：1987-03-31
Applicant: BASF AG
Inventor： SANDER BRUNO DR , MARQUARDT SIEGFRIED , LUETH GERO DR , HORN ROBERT K DR , KEMPE UWE DR
-
公开(公告)号：DK123090C
公开(公告)日：1972-10-09
申请号：DK56170
申请日：1970-02-05
Applicant: BASF AG
Inventor： LUETH GERO DR , ZINK ROBERT DR , NITZSCHMANN ROBERT DR , EISENHAUER GERHARD DR
IPC: B01J2/30 , C01C1/18 , C05C9/00 , C05G3/00 , C05G3/10 , C07C67/00 , C07C239/00 , C07C273/02 , C09K3/22
Abstract: 1292718 Coated fertilizers BADISCHE ANILIN- & SODA-FABRIK AG 5 Feb 1970 [6 Feb 1969] 5573/70 Headings C1A and C1B [Also in Divisions B2 and C2] A granular or crystalline salt or fertilizer is provided with a coating to avoid dust formation and agglomeration, the coating comprising a polyethylene wax and/or polypropylene wax of mean M.W. from 500 to 10,000 and having a penetrometer number of not more than 3, and a surfactant. Specified salts/fertilizers are urea, calcium nitrate, sodium nitrate, potassium nitrate, calcium ammonium nitrate, nitrophosphates, potassium sulphate, potassium chloride and sodium chloride, and various fertilizers specified by NPK and NPKMg proportions. The surfactant may be anionic, cationic or non-ionic and examples of each type are given.
-
Patent Agency Ranking
公开(公告)号：DE59100367D1
公开(公告)日：1993-10-21
申请号：DE59100367
申请日：1991-01-26
Applicant: BASF AG
Inventor： SANDER BRUNO DR , MARQUARDT SIEGFRIED , KEMPE UWE DR , VODRAZKA WOLFGANG DR , LUETH GERO DR
Abstract: Process for the utilisation of soot, arising in the production of synthesis gas in the form of soot-containing waste water, characterised in that, in a sewage sludge treatment plant, the soot-containing waste water a) is mixed with a clarified sludge, to which are added organic flocculating agents as dewatering aids and to which, if required, are added still further amounts of finely particulate coals and/or ashes, b) this pretreated sludge mixture is subjected to filtration c) the filter cake obtained is incinerated and d) the ash is deposited in a supervised landfill.
-
公开(公告)号：DE4003242A1
公开(公告)日：1991-08-08
申请号：DE4003242
申请日：1990-02-03
Applicant: BASF AG
Inventor： SANDER BRUNO DR , MARQUARDT SIEGFRIED , KEMPE UWE DR , VODRAZKA WOLFGANG DR , LUETH GERO DR
Abstract: Process for the utilisation of soot, arising in the production of synthesis gas in the form of soot-containing waste water, characterised in that, in a sewage sludge treatment plant, the soot-containing waste water a) is mixed with a clarified sludge, to which are added organic flocculating agents as dewatering aids and to which, if required, are added still further amounts of finely particulate coals and/or ashes, b) this pretreated sludge mixture is subjected to filtration c) the filter cake obtained is incinerated and d) the ash is deposited in a supervised landfill.
-
公开(公告)号：DE2207922A1
公开(公告)日：1973-08-23
申请号：DE2207922
申请日：1972-02-19
Applicant: BASF AG
Inventor： LUETH GERO DR , REINHARD PAUL DR
Abstract: 1412487 Granulating fertilizer BADISCHE ANILIN- & SODA-FABRIK AG 16 Feb 1973 [19 Feb 1972] 7642/73 Heading B5A [Also in Division C1] In a process for making substantially anhydrous granular fertilizer wherein moisturecontaining melts are sprayed on to moving granule cores in a granulating zone, e.g. a drum, whilst a gas inert to the melt and cores is passed through the zone, (a) the granule cores introduced into the zone have a temperature 5-30‹ C. below that of the granulating temperature, (b) the unsaturated water vapour pressure in the zone is 0À05-0À15 atmosphere, (c) the gas stream is adjusted to be 50-90% saturated with water vapour on leaving the zone, (d) the temperature of the melt introduced into the zone is 5-25‹ C. above the granulating temperature provided that the temperature of the melt is equal to or higher than the crystallization temperature of the melt and (e) the granules discharged from the zone are sifted with the tails and fines being recycled to the granulating zone. The melt may contain suspended solids, e.g. comminuted tails and fines which may be heated via steam heat exchangers. Fertilizers of nitro-chalk (lime and ammonia) and ammonium nitrate may be formed having a particle size of 1-3 mm. and a water content of 0À3-0À6% W/W. The gas may be air. Examples of granulating temperature, melt moisture content and inert gas temperatures are given.
-
公开(公告)号：DE1905834C3
公开(公告)日：1972-11-09
申请号：DE1905834
申请日：1969-02-06
Applicant: BASF AG
Inventor： LUETH GERO DR , ZINK ROBERT DR , NITZSCHMANN ROBERT DR , EISENHANER GERHARD DR
IPC: B01J2/30 , C01C1/18 , C05C9/00 , C05G3/00 , C05G3/10 , C07C67/00 , C07C239/00 , C07C273/02 , C09K3/22
Abstract: 1292718 Coated fertilizers BADISCHE ANILIN- & SODA-FABRIK AG 5 Feb 1970 [6 Feb 1969] 5573/70 Headings C1A and C1B [Also in Divisions B2 and C2] A granular or crystalline salt or fertilizer is provided with a coating to avoid dust formation and agglomeration, the coating comprising a polyethylene wax and/or polypropylene wax of mean M.W. from 500 to 10,000 and having a penetrometer number of not more than 3, and a surfactant. Specified salts/fertilizers are urea, calcium nitrate, sodium nitrate, potassium nitrate, calcium ammonium nitrate, nitrophosphates, potassium sulphate, potassium chloride and sodium chloride, and various fertilizers specified by NPK and NPKMg proportions. The surfactant may be anionic, cationic or non-ionic and examples of each type are given.
-
公开(公告)号：DE1940686A1
公开(公告)日：1971-02-25
申请号：DE1940686
申请日：1969-08-09
Applicant: BASF AG
-
-
-
-
-
-
Search Results
7
records
(took 0.017 seconds)
