公开(公告)号：CA3005285A1

公开(公告)日：2017-06-15

申请号：CA3005285

申请日：2016-12-01

Applicant: BASF SE

Inventor： JAEKEL FRANK ,  MUELLER MICHAEL KLEMENS

IPC: C11D3/33 ,  C07C227/42 ,  C07C229/16 ,  C11D7/32 ,  C11D11/00 ,  C11D11/02

Abstract: Process for manufacturing granules of at least one alkali metal salt of aminopolycarboxylic acid (A), comprising the steps of (a) providing an aqueous slurry of alkali metal salt of aminopolycarboxylic acid (A), (b) maintaining said aqueous slurry at a temperature in the range of from 50 to 90°C over a period of time in the range of from 2 to 180 hours, (c) spray granulating said slurry with a gas inlet temperature of at least 150°C.

公开(公告)号：AR108219A1

公开(公告)日：2018-08-01

申请号：ARP170100981

申请日：2017-04-18

Applicant: BASF SE

Inventor： BERGNER KAI ,  LAFUENTE CERDA OSCAR ,  DR KEMPTER ANDREAS ,  MUELLER MICHAEL KLEMENS ,  KIERAT RADOSLAW

IPC: C04B20/10 ,  C04B28/02 ,  C04B40/06

Abstract: Un proceso para preparar partículas recubiertas con sílice de un agente expansor inorgánico, las partículas recubiertas con sílice y su uso. Las partículas recubiertas con sílice muestran una liberación demorada del agente expansor, en particular en medio alcalino y a temperaturas elevadas. Por lo tanto, son útiles en la industria del petróleo y de la construcción.

公开(公告)号：CA3075589A1

公开(公告)日：2019-04-25

申请号：CA3075589

申请日：2018-09-25

Applicant: BASF SE

Inventor： CHOI SUNG YEUN ,  BERGNER KAI ,  KIERAT RADOSLAW ,  MUELLER MICHAEL KLEMENS

IPC: B01J13/04 ,  B01J13/00 ,  C04B20/10

Abstract: Coated inorganic expanding agent particles comprise a core of an inorganic expanding agent and a sol/gel-formed coating comprising a mixed oxide of two or more metals and/or metalloids, in particular a mixed oxide of silicon and at least one metal and/or metalloid selected from aluminum, boron, titanium, zirconium and zinc. The coated inorganic expanding agent particles are added to cementitious systems to avoid shrinkage during hardening. The coating is effective to delay the expanding effect.

公开(公告)号：CA3018811A1

公开(公告)日：2017-10-26

申请号：CA3018811

申请日：2017-04-07

Applicant: BASF SE

Inventor： KIERAT RADOSLAW ,  MUELLER MICHAEL KLEMENS ,  KEMPTER ANDREAS ,  LAFUENTE CERDA OSCAR ,  BERGNER KAI

IPC: C04B28/02 ,  C04B20/10 ,  C04B40/06

Abstract: The invention relates to a process for preparing silica-coated particles of an inorganic expanding agent, the silica-coated particles and their use. The silica-coated particles show a delayed release of the expanding agent particularly in alkaline medium and at elevated temperatures. They are therefore useful in the oil and construction industry.