公开(公告)号：IN150152B

公开(公告)日：1982-07-31

申请号：IN1130CA1978

申请日：1978-10-19

Applicant: HOECHST AG

Inventor： KAISER K ,  OHORODNIK A

IPC: C08F6/00 ,  C08F6/06 ,  C08F6/10 ,  C08F6/24 ,  C08F10/00 ,  C07C7/00

公开(公告)号：SE417791B

公开(公告)日：1981-04-13

申请号：SE7507665

申请日：1975-07-03

Applicant: HOECHST AG

Inventor： OHORODNIK A ,  MITTLER W ,  GEHRMANN K ,  SCHOLZ H ,  VIERLING H

IPC: C07C53/16 ,  B01J8/20 ,  B01J23/44 ,  B01J37/00 ,  C07B61/00 ,  C07C51/00 ,  C07C51/377 ,  C07C67/00 ,  B01J35/02

公开(公告)号：ZA80167B

公开(公告)日：1981-01-28

申请号：ZA80167

申请日：1980-01-11

Applicant: HOECHST AG

Inventor： OHORODNIK A ,  GEHRMANN K ,  AUER E ,  SCHAEFER S

IPC: C07F9/02 ,  C07F9/52 ,  C09K15/12 ,  C09K15/32 ,  C07F

Abstract: The invention relates to a process permitting the deposition of solid matter in mixtures containing methyldichlorophosphane to be avoided. To this end, the mixture is stabilized by admixing it with phosphoric acid or a soluble compound containing at least one acid group selected from phosphoric acid, phosphonic acid, sulfonic acid, phosphonous acid, thiophosphoric acid or dithiophosphoric acid.

公开(公告)号：NL162057C

公开(公告)日：1980-04-15

申请号：NL7500479

申请日：1975-01-15

Applicant: HOECHST AG

Inventor： SENNEWALD K ,  OHORODNIK A ,  MITTLER W ,  HUNDECK J ,  HARDEL H-J

IPC: C07C51/377 ,  C07C53/16

公开(公告)号：NL162057B

公开(公告)日：1979-11-15

申请号：NL7500479

申请日：1975-01-15

Applicant: HOECHST AG

Inventor： SENNEWALD K ,  OHORODNIK A ,  MITTLER W ,  HUNDECK J ,  HARDEL H-J

IPC: C07C51/377 ,  C07C53/16

公开(公告)号：ZA7805855B

公开(公告)日：1979-10-31

申请号：ZA7805855

申请日：1978-10-18

Applicant: HOECHST AG

Inventor： KAISER K ,  OHORODNIK A

IPC: C08F6/00 ,  C08F6/06 ,  C08F6/10 ,  C08F

CPC classification number: C08F6/10

公开(公告)号：DE2053115C3

公开(公告)日：1978-08-31

申请号：DE2053115

申请日：1970-10-29

Applicant: HOECHST AG, 6000 FRANKFURT

Inventor： OHORODNIK A ,  SENNEWALD K ,  HUNDECK J ,  STUTZKE P

IPC: B01J8/00 ,  B01J8/18 ,  B01J8/22 ,  C07C51/377

Abstract: 1363245 Liquid phase catalytic process, separating solids from liquid KNAPSACK AG 4 Oct 1971 [29 Oct 1970] 46060/71 Headings B1D and B1F In catalyst/liquid separator 7, liquid product is drawn off through valve 11 at a rate such that the upward rate of flow of liquid in separator 7 is less than the rate of sedimentation of catalyst in the separator. Circulation of reaction mixture is effected by the gas-lift effect of gas from line 9 and pump 3. The hydrogenative dehalogenation of dichloracetic acid to produce monochloracetic acid is described using a palladium catalyst on a silica carrier.

公开(公告)号：ZA763944B

公开(公告)日：1977-06-29

申请号：ZA763944

申请日：1976-07-02

Applicant: HOECHST AG

Inventor： LOHMAR E ,  GEHRMANN K ,  OHORODNIK A ,  STUTZKE P

IPC: C07F9/34 ,  C07F

Abstract: Beta-halogenoformyl-ethyl phosphinic acid halides of the general formula:

公开(公告)号：SE7507665L

公开(公告)日：1976-01-07

申请号：SE7507665

申请日：1975-07-03

Applicant: HOECHST AG

Inventor： OHORODNIK A ,  MILLTER W ,  GEHRMANN K ,  SCHOLZ H ,  VIERLING H

IPC: C07C53/16 ,  B01J8/20 ,  B01J23/44 ,  B01J37/00 ,  C07B61/00 ,  C07C51/00 ,  C07C51/377 ,  C07C67/00 ,  B01J35/02

公开(公告)号：SE374349B

公开(公告)日：1975-03-03

申请号：SE393370

申请日：1970-03-23

Applicant: HOECHST AG

Inventor： SENNEWALD K ,  OHORODNIK A ,  MITTLER W ,  HUNDECK J ,  HARDEL H-J

IPC: B01J27/00 ,  C07C53/16 ,  B01J31/00 ,  C07B61/00 ,  C07C51/00 ,  C07C51/377 ,  C07C67/00

Abstract: 1282682 Dehalogenation of haloacids KNAPSACK AG 16 March 1970 [25 March 1969] 12540/70 Heading C2C Monohalocarboxylic acids are prepared from dihalocarboxylic acids, optionally in admixture with trihalocarboxylic acids, by hydrogenation at 60‹ to 170‹ C. using a stationary or suspended catalyst comprising a Group VIII metal with an inert carrier, the catalyst being activated by one or more of (a) a non-poisonous metal salt, oxide or hydroxide, and/or (b) an inorganic or organic proton donor. Examples relate to the purification of crude monochloroacetic acid obtained by the chlorination of glacial acetic acid in the presence of acetic anhydride and acetyl chloride, the product containing dichloroacetic acid, trichloroacetic acid and acetic acid. Metal and ammonium activators specified are metals, alkaline earth metals, rare earth metals or metals of Groups 4 or 5, e.g. lithium chloride, sodium acetate, sodium chloride, sodium chloroacetate, sodium carbonate, potassium acetate, potassium chloride, ammonium acetate, ammonium chloride, calcium chloride, aluminium chloride, cerium dioxide, titanium dioxide and vanadium pentoxide. Organic proton-donor activators specified are triethylamine, pyridine, 4-amino-pyridine, piperidine, glycine, urea or triphenyl-phosphine, salts thereof, trichlorosilane, glycocoll, butyraldehyde, di-isobutyl ketone, butyl acetate and cyanoacetic acid. Granular inert carriers of small grain size are advantageous. Specified catalyst-carrier systems are palladium-silica or silicic acid. The process is preferably operated continuously, with recycling of the hydrogenated products and separation of the catalyst therefrom.