公开(公告)号：BRPI0412503B1

公开(公告)日：2020-11-03

申请号：BRPI0412503

申请日：2004-07-09

Applicant: BASF AG ,  BASF SE

Inventor： BERND ECK ,  HANS MARTAN ,  JOACHIM THIEL ,  JÜRGEN SCHRÖDER ,  KLAUS JOACHIM MÜLLER-ENGEL ,  ULRICH HAMMON

IPC: B01D3/14 ,  B01D3/32 ,  C07C51/215 ,  C07C51/25 ,  C07C51/43 ,  C07C51/44

Abstract: "processo de separação térmica para a remoção de pelo menos uma corrente contendo monômeros (met)acrílicos enriquecidos". a invenção diz respeito a um método para a separação de um fluxo de massa contendo monômeros (met)acrílicos enriquecidos de uma mistura contendo monômeros (met)acrílicos, em que as fases líquidas com temperatura alta e teor de monômero (met)acrílico alto retidas na área de separação são minimizadas.

公开(公告)号：ID18421A

公开(公告)日：1998-04-09

申请号：ID972393

申请日：1997-07-10

Applicant: BASF AG

Inventor： BERND ECK ,  OTTO MACHHAMMER DR ,  THEO PROLL DR ,  VOLKER SCHLIEPHAKE DR

IPC: C07C51/21 ,  C07C57/04 ,  C07C51/43 ,  C07C57/05 ,  C07C57/07 ,  C07C67/48

Abstract: A process for preparing acrylic acid or methacrylic acid comprises(a) preparing a gaseous product mixture having essentially the composition of a reaction mixture of the catalytic gas phase oxidation of C3-/C4-alkanes, -alkenes, -alkanols and/or -alkanals and/or precursors thereof to form acrylic acid or methacrylic acid, characterized by(b) condensing said product mixture,(c) crystallizing acrylic acid or methacrylic acid from the solution obtained in step (b), and(d) removing the resulting crystals from the mother liquor.

公开(公告)号：ZA200601208B

公开(公告)日：2007-05-30

申请号：ZA200601208

申请日：2006-02-10

Applicant: BASF AG

Inventor： ULRICH HAMMON ,  JOACHIM MUELLER-ENGEL KLAUS ,  SCHROEDER JUERGEN ,  HANS MARTAN ,  BERND ECK ,  JOACHIM THIEL

IPC: B01D20090101 ,  B01D3/14 ,  B01D3/32 ,  C07C20090101 ,  C07C51/215 ,  C07C51/25 ,  C07C51/43 ,  C07C51/44

Abstract: A thermal separating process for removing a stream containing enriched (meth)acrylic monomers from a mixture containing (meth)acrylic monomers, in which the liquid phases retained in the separating space at high temperature and high (meth)acrylic monomer content are minimized.

公开(公告)号：MY121013A

公开(公告)日：2005-12-30

申请号：MYPI9804169

申请日：1998-09-11

Applicant: BASF AG

Inventor： KLAUS BROLLOS DR ,  OTTO MACHHAMMER DR ,  THEO PROLL DR ,  VOLKER SCHLIEPHAKE DR ,  JOACHIM THIEL DR ,  BERND ECK

IPC: C07C51/43 ,  C07C51/44 ,  C07C57/07

Abstract: A PROCESS FOR PREPARING ACRYLIC ACID OR METHACRYLIC ACID COMPRISES PREPARING A GASEOUS PRODUCT MIXTURE HAVING ESSENTIALLY THE COMPOSITION OF A REACTION MIXTURE OF THE CATALYTIC GAS PHASE OXIDATION OFC3-/C4- ALKANES,- ALKENES, -ALKANOLS AND/OR -ALKANALS AND/OR PRECURSORS THEREOF TO FORM ARCYLIC ACID METHACRYLIC ACID. ISOLATION OF ACRYLIC ACID OR METHACRYLIC ACID FROM THE GASEOUS PRODUCT MIXTURE IS ACHIEVED BY THE PROCESS CONTAINING FOLLOWING STEPS :(A) CONDENSING SAID GASEOUS PRODUCT MIXTURE, (B) CRYSTALLIZING ACRYLIC ACID OR METHACRYLIC ACID FROM THE SOLUTION OBTAINED IN STEP (A), (C) REMOVING THE RESULTING CRYSTALS FROM THE MOTHER LIQUOR, AND (D) RECYCLING AT LEAST A PORTION OF SAID MOTHER LIQUOR FROM STEP (C) INTO STEP (A).

公开(公告)号：MY119650A

公开(公告)日：2005-06-30

申请号：MYPI9804175

申请日：1998-09-11

Applicant: BASF AG

Inventor： KLAUS BROLLOS DR ,  OTTO MACHHAMMER DR ,  THEO PROLL DR ,  VOLKER SCHLIEPHAKE DR ,  JOACHIM THIEL DR ,  BERND ECK

IPC: B01D5/00 ,  C07C51/44 ,  C07C57/07

Abstract: A PROCESS FOR FRACTIONAL CONDENSATION OF A HOT GAS MIXTURE CONTAINING ACRYLIC ACID OR METHACRYLIC ACID AS A CONDENSABLE COMPONENT AND AT LEAST A SECOND CONDENSABLE COMPONENT AND FUTHERMORE A HIGH PROPORTION OF AT LEAST ONE UNCONDENSABLE COMPONENT, WHICH COMPRISES PASSING THE GAS MIXTURE THROUGH A COLUMN HAVING SEPARATORY INTERNALS AND CONDENSING OUT THE CONDENSABLE COMPONENTS BY COOLING.

公开(公告)号：MY118772A

公开(公告)日：2005-01-31

申请号：MYPI9703138

申请日：1997-07-10

Applicant: BASF AG

Inventor： OTTO MACHHAMMER DR ,  THEO PROLL DR ,  VOLKER SCHLIEPHAKE DR ,  BERND ECK ,  MULLER-ENGEL KLAUS JOACHIM

IPC: C07C57/04 ,  C07C51/21 ,  C07C51/43 ,  C07C57/05 ,  C07C57/07

Abstract: PREPARATION OF ACRYLIC ACID OR METHACRYLIC ACID BY:(A) PREPARATION OF A GASEOUS MIXTURE OF PRODUCTS, WHICH HAS SUBSTANTIALLY THE COMPOSITION OF A REACTION MIXTURE OF THE CATALYTIC GAS PHASE OXIDATION OF C3/C4 ALKANES, ALKENES, ALKANOLS, AND/OR ALKANALS, AND/OR PRECURSORS THEREOF FOR THE PRODUCTION OF ACRYLIC ACID OR METHACRYLIC ACID, CHARACTERIZED BY(B) CONDENSATION OF THE MIXTURE OF PRODUCTS,(C) CRYSTALLIZATION OF THE ACRYLIC ACID OR METHACRYLIC ACID FROM THE SOLUTION OBTAINED IN STAGE (B), AND (D) SEPARATION OF THE RESULTING CRYSTALS FROM THE MOTHER LIQUOR. @