公开(公告)号：ES2135133T3

公开(公告)日：1999-10-16

申请号：ES96105881

申请日：1996-04-15

Applicant: BASF AG

Inventor： FRIEDRICH HOLGER DR ,  KELLER HARALD DR ,  LEUTNER BERND DR

IPC: C07F7/12 ,  C07F7/18

Abstract: Silanes (I) of formula (A) are new: n = 1-5; at least one R gp. = a hydrolysable halogen, alkoxy, sec. amino, -O-C(=O)-H or oxycarbonylalkyl gp. and the rest = (cyclo)alkyl, aryl or a hydrolysable gp.

公开(公告)号：DE59600938D1

公开(公告)日：1999-01-21

申请号：DE59600938

申请日：1996-05-23

Applicant: BASF AG

Inventor： KROENER RUDI DR ,  LEUTNER BERND DR ,  SCHNEIDER HANS-MICHAEL DR ,  FRIEDRICH HOLGER DR ,  HECKY KURT ,  SCHLAEFER DIETER DR ,  STEINER WOLFGANG DR

IPC: C25B13/00 ,  C25B15/00

Abstract: Regenerating plastic diaphragms comprises mixing a soln. of mineral acid (I) with a corrosion inhibitor (II) and passing the mixt. through the diaphragm for 0.1-84 (pref. 1-72, esp. pref. 2-24) hrs. at 0-100 (pref. 40-80, esp. pref. 50-70) degrees C. Also claimed are plastic diaphragms obtd. by this process. (I) consists at least partly, pref. entirely, of HCl in a concn. of 0.3-20 (pref. 2-10) wt%, pref. contg. NaCl in a concn. up to the satn. pt., pref. up to 250 g/l. Pref. soln. (I) also contains 500-5000 ppm Cu and/or Fe cpds., esp. Cu(II) and/or Fe(III) salts. The mixt. contains 0.005-5 (pref. 0.05-0.5) wt% (II). Component (II) contains alkynol(s), esp. an alkyne-diol, pref. mixed with 1-25 wt% amine, esp. hexamethylenetetramine (HMTA), ethylhexylamine or diethylhexylamine, and/or 0.1-3 wt% surfactant, esp. a quat. ammonium salt.

公开(公告)号：DE19519921A1

公开(公告)日：1996-12-05

申请号：DE19519921

申请日：1995-05-31

Applicant: BASF AG

Inventor： KROENER RUDI DR ,  LEUTNER BERND DR ,  SCHNEIDER HANS-MICHAEL DR ,  FRIEDRICH HOLGER DR ,  HECKY KURT ,  SCHLAEFER DIETER DR ,  STEINER WOLFGANG DR

IPC: C25B13/00 ,  C25B15/00

Abstract: Regenerating plastic diaphragms comprises mixing a soln. of mineral acid (I) with a corrosion inhibitor (II) and passing the mixt. through the diaphragm for 0.1-84 (pref. 1-72, esp. pref. 2-24) hrs. at 0-100 (pref. 40-80, esp. pref. 50-70) degrees C. Also claimed are plastic diaphragms obtd. by this process. (I) consists at least partly, pref. entirely, of HCl in a concn. of 0.3-20 (pref. 2-10) wt%, pref. contg. NaCl in a concn. up to the satn. pt., pref. up to 250 g/l. Pref. soln. (I) also contains 500-5000 ppm Cu and/or Fe cpds., esp. Cu(II) and/or Fe(III) salts. The mixt. contains 0.005-5 (pref. 0.05-0.5) wt% (II). Component (II) contains alkynol(s), esp. an alkyne-diol, pref. mixed with 1-25 wt% amine, esp. hexamethylenetetramine (HMTA), ethylhexylamine or diethylhexylamine, and/or 0.1-3 wt% surfactant, esp. a quat. ammonium salt.

公开(公告)号：DE19514258A1

公开(公告)日：1996-10-17

申请号：DE19514258

申请日：1995-04-15

Applicant: BASF AG

Inventor： FRIEDRICH HOLGER DR ,  KELLER HARALD DR ,  LEUTNER BERND DR

IPC: C07F7/12 ,  C07F7/18 ,  C07F7/08 ,  H01L21/312 ,  C04B41/84 ,  C09C3/12 ,  B01D15/08

Abstract: Silanes (I) of formula (A) are new: n = 1-5; at least one R gp. = a hydrolysable halogen, alkoxy, sec. amino, -O-C(=O)-H or oxycarbonylalkyl gp. and the rest = (cyclo)alkyl, aryl or a hydrolysable gp.

公开(公告)号：DE19500871A1

公开(公告)日：1996-07-18

申请号：DE19500871

申请日：1995-01-13

Applicant: BASF AG

Inventor： KROENER RUDI DR ,  LEUTNER BERND DR ,  SCHLAEFER DIETER DR ,  STEINER WOLFGANG DR ,  FRIEDRICH HOLGER DR

IPC: C25B13/00 ,  B29B17/00

Abstract: Process for recycling diaphragms comprises crushing and washing with a washing substrate (I) to produce re-usable material.