Investigation of heavy metal contaminated soils - includes sealing walls of borehole using mixts. of polymeric pyrrolidinium salts with alkali silicate(s) or with bentonite-modified montan wax emulsions an limiting boring speed,申请号DE19924216472-传众专利搜索

发明名称	Investigation of heavy metal contaminated soils - includes sealing walls of borehole using mixts. of polymeric pyrrolidinium salts with alkali silicate(s) or with bentonite-modified montan wax emulsions an limiting boring speed
摘要	Investigation of heavy metal contaminated soils comprises using a hollow screw boring appts. and inhibiting heavy metals from falling out of the bore hole wall as well as other waste materials of any consistency or size to the bore hole bottom. Inhibition is obtd. by sealing the bore hole using fluids comprising mixts. of polymeric pyrrolidium modified montan wax emulsions are dosed section-wise in the bore hole and additional stabilisation of the borehole is obtd. by limiting the speed of the boring appts.
申请公布号	DE4216472(C1)	申请公布日期	1993.08.05
申请号	DE19924216472	申请日期	1992.05.15
申请人	DBI GAS- UND UMWELTTECHNIK GMBH, O-7024 LEIPZIG, DE;VEREINIGTE MITTELDEUTSCHE BRAUNKOHLENWERKE AG, O-4400 BITTERFELD, DE	发明人	BILKENROTH, KLAUS-DIETER, PROF. DR., O-4860 HOHENMOELSEN, DE;CALDONAZZI, ORTWIN, DR., O-7030 LEIPZIG, DE;BAIER, HERBERT, DIPL.-ING., O-4400 BITTERFELD, DE;KRETZSCHMAR, HANS-JUERGEN, DR., O-9200 FREIBERG, DE;HEILMANN, MANFRED, DR., O-9200 FREIBERG, DE;CZOLBE, PETER, DR., O-9200 FREIBERG, DE;WAZLAWIK, KLAUS, DR., 1170 BERLIN, DE;KELLER, HEINZ, DIPL.-ING., O-4207 MUECHELN, DE
分类号	C09K8/24;C09K8/42;E21B7/00;E21B25/08;E21B33/138	主分类号	C09K8/24
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