公开(公告)号：DE2542536A1

公开(公告)日：1977-03-31

申请号：DE2542536

申请日：1975-09-24

Applicant: DEGUSSA

Inventor： KNORRE HELMUT DIPL CHEM DR ,  LANGER MANFRED DIPL CHEM DR ,  FISCHER WOLFGANG

IPC: C04B24/06 ,  C04B11/14 ,  C04B13/14

Abstract: Gypsum plaster having a delayed setting time is made by adding a mixture of mesotartaric acid and l-tartaric acid or d,l-tartaric acid or a mixture of l-tartaric acid and d,l-tartaric acid to the gypsum plaster.

公开(公告)号：DE2456433A1

公开(公告)日：1976-06-10

申请号：DE2456433

申请日：1974-11-29

Applicant: DEGUSSA

Inventor： KNORRE HELMUT DIPL CHEM DR ,  FISCHER JOACHIM

IPC: B01J2/30 ,  C09K15/00

Abstract: There is prepared a powdery anticaking agent for inorganic salts based on (A) an iron cyanide complex, (B) a water insoluble inorganic, inert, finely divided hydroxyl group containing material or a material able to form this in the production of the anticaking agent, (C) hydrophobizing and/or (D) hydrophilizing materials in which (A), (C) and/or (D) are employed on component (B) as a carrier together with (E) water in an amount of 20 to 50 weight percent, preferable 35 to 45 weight percent. The composition is prepared by intensively mixing the carrier (B) in the corresponding ratio in the dry state with the active materials at room temperature and then adding to this mixture so much water that the active components go into solution and as such are absorbed on the carrier and regulating the pH to 7 to 9, preferably 7 to 8.

公开(公告)号：DE2452078A1

公开(公告)日：1976-05-06

申请号：DE2452078

申请日：1974-11-02

Applicant: DEGUSSA

Inventor： KNORRE HELMUT DIPL CHEM DR

IPC: B01J2/30 ,  C01C3/20

Abstract: Agglomeration of NH4-, alkali-, alkaline earth- and quat. N cpd. rhodanides contg. >0.5% H2O is prevented by process in which the rhodanides are admixed at 30 degrees C with 0.5-10 (pref. 2) wt.% anti-agglomerant mixt. contg. (a) a finely-divided, natural or synthetic silica and/or silicate filler together with (b) NH4- or an alkali- and/or alkaline earth sulphate. Pref. wt. ratio (a):(b) is 2:8 to 8:2, esp. 1:1. Stable, flowable powders are obtd. suitable for use in automated processes.

公开(公告)号：DE2642238A1

公开(公告)日：1978-03-23

申请号：DE2642238

申请日：1976-09-20

Applicant: DEGUSSA

Inventor： KNORRE HELMUT DIPL CHEM DR ,  POHL GERHARD DIPL CHEM DR ,  STUETZEL KLAUS

IPC: C22B15/00 ,  B01J45/00 ,  C01G3/00 ,  C01G49/06 ,  C02F1/52 ,  C02F1/62 ,  C02F1/72 ,  C02C5/02

公开(公告)号：DE2511433A1

公开(公告)日：1975-12-04

申请号：DE2511433

申请日：1975-03-15

Applicant: DEGUSSA

Inventor： KNORRE HELMUT DIPL CHEM DR ,  FISCHER JOACHIM

IPC: G03C11/00 ,  G03C11/24

公开(公告)号：DE2210665A1

公开(公告)日：1973-09-20

申请号：DE2210665

申请日：1972-03-06

Applicant: DEGUSSA

Inventor： KNORRE HELMUT DIPL CHEM DR ,  LEIDL PETER DIPL CHEM DR

IPC: B65D85/00

公开(公告)号：DE2940630A1

公开(公告)日：1981-04-09

申请号：DE2940630

申请日：1979-10-06

Applicant: DEGUSSA ,  LEYBOLD HERAEUS GMBH & CO KG

Inventor： KNORRE HELMUT DIPL CHEM DR ,  LANGER MANFRED DIPL CHEM DR ,  FAUSER FRIEDRICH ,  FISCHER WILLI

IPC: B01D1/22 ,  C10M175/00 ,  C10M11/00

公开(公告)号：DE2917714A1

公开(公告)日：1981-03-26

申请号：DE2917714

申请日：1979-05-02

Applicant: DEGUSSA

Inventor： EIERMANN KURT DIPL PHYS DR ,  GOEDECKE RALF DIPL ING DR ,  KNORRE HELMUT DIPL CHEM DR ,  MOELLER ROLF

IPC: G01N27/416 ,  G01N27/52 ,  G01N27/46

公开(公告)号：DE2818521A1

公开(公告)日：1979-11-08

申请号：DE2818521

申请日：1978-04-27

Applicant: DEGUSSA

Inventor： KNORRE HELMUT DIPL CHEM DR ,  LANGER MANFRED DIPL CHEM DR ,  WANIOREK AXEL

IPC: C10G19/00 ,  C10G19/073 ,  C10G53/12 ,  C10G67/10 ,  C10M175/00 ,  C10M11/00

Abstract: A process for the reprocessing of used lubricating oil wherein said oils are treated with a mixture of potassium hydroxide and sodium hydroxide.

公开(公告)号：DE2542535A1

公开(公告)日：1977-04-14

申请号：DE2542535

申请日：1975-09-24

Applicant: DEGUSSA

Inventor： KNORRE HELMUT DIPL CHEM DR ,  LANGER MANFRED DIPL CHEM DR ,  LEIDL PETER DIPL CHEM DR

IPC: C04B24/06 ,  C04B28/14 ,  C04B11/14 ,  C04B13/14

Abstract: Industrial gypsum plaster (plaster of Paris) having a delayed setting time is prepared by including D,L-tartaric acid and sufficient calcium hydroxide that a 5 weight % aqueous suspension of the plaster has a pH of at least 11.5.