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公开(公告)号：KR860001551B1
公开(公告)日：1986-10-04
申请号：KR840007215
申请日：1984-11-17
Applicant: STAMICARBON
Inventor： KLEINTJENS LUDOVICUS ANNA LEON
IPC: C08F6/28 , C08C1/00 , C08C3/02 , C08F6/00 , C08F6/06 , C08F6/10 , C08F6/16 , C08F210/00 , C08F210/16 , C08F210/18
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公开(公告)号：AT24477T
公开(公告)日：1987-01-15
申请号：AT83201851
申请日：1983-12-29
Applicant: STAMICARBON
IPC: C07C63/06 , C07C51/00 , C07C51/42 , C07C51/487 , C07C67/00
Abstract: benzoic acid is prepared from raw benzoic acid made by oxidation of toluene with an oxygen containing gas, the process is characterized in that the oxidation reaction product is contacted with at least 1 m 3 per kg of benzoic acid of a gas with a critical temperature lower than 435 K by passing this gas through the oxidation reaction product at a flow rate of at least 1 m 3 per hour per kg of benzoic acid at a temperature of 340-600 K and a pressure of at least 3 MPa. The pharmaceutical benzoic acid is separated from the mixture by cooling it to 315-370 K at a pressure of 3-300 MPa.
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公开(公告)号：DE3484923D1
公开(公告)日：1991-09-19
申请号：DE3484923
申请日：1984-11-14
Applicant: STAMICARBON
Inventor： KLEINTJENS LUDOVICUS ANNA LEON
IPC: C08F6/28 , C08C1/00 , C08C3/02 , C08F6/00 , C08F6/06 , C08F6/10 , C08F6/16 , C08F210/00 , C08F210/16 , C08F210/18
Abstract: The invention relates to a process for purifying ethylene-alkene-diene rubbers by extraction with an extractant chosen from substances with a critical temperature below 435 °K at a temperature above the critical temperature of the extractant and a pressure above the critical pressure of the extractant.
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公开(公告)号：BR8405855A
公开(公告)日：1985-09-17
申请号：BR8405855
申请日：1984-11-16
Applicant: STAMICARBON B B
Inventor： KLEINTJENS LUDOVICUS ANNA LEON
IPC: C08F6/28 , C08C1/00 , C08C3/02 , C08F6/00 , C08F6/06 , C08F6/10 , C08F6/16 , C08F210/00 , C08F210/16 , C08F210/18
Abstract: The invention relates to a process for purifying ethylene-alkene-diene rubbers by extraction with an extractant chosen from substances with a critical temperature below 435 °K at a temperature above the critical temperature of the extractant and a pressure above the critical pressure of the extractant.
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公开(公告)号：BR8701089A
公开(公告)日：1988-09-13
申请号：BR8701089
申请日：1987-03-10
Applicant: STAMICARBON
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Patent Agency Ranking
公开(公告)号：DE3563615D1
公开(公告)日：1988-08-11
申请号：DE3563615
申请日：1985-11-21
Applicant: STAMICARBON
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公开(公告)号：AT25662T
公开(公告)日：1987-03-15
申请号：AT83201852
申请日：1983-12-29
Applicant: STAMICARBON
IPC: C07C63/06 , C07C51/00 , C07C51/42 , C07C51/487 , C07C67/00
Abstract: Benzoic acid is prepared by oxidation of toluene with an oxygen containing gas, the process is characterized in that the oxidation reaction product is subjected to an extraction with a gas of which the critical temperature is lower than 435 K, this being effected by passing it during at least 1 minute over or through the oxidation reaction product at a flow rate of at least 1 m 3 gas per hour per kg of benzoic acid at a temperature of 285-340 K and at a pressure of at least 3 MPa.
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公开(公告)号：DE3572497D1
公开(公告)日：1989-09-28
申请号：DE3572497
申请日：1985-11-14
Applicant: STAMICARBON
Inventor： KLEINTJENS LUDOVICUS ANNA LEON
IPC: C08F6/00
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公开(公告)号：AT35533T
公开(公告)日：1988-07-15
申请号：AT85201921
申请日：1985-11-21
Applicant: STAMICARBON
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公开(公告)号：DE3369968D1
公开(公告)日：1987-04-09
申请号：DE3369968
申请日：1983-12-29
Applicant: STAMICARBON
IPC: C07C63/06 , C07C51/00 , C07C51/42 , C07C51/487 , C07C67/00
Abstract: Benzoic acid is prepared by oxidation of toluene with an oxygen containing gas, the process is characterized in that the oxidation reaction product is subjected to an extraction with a gas of which the critical temperature is lower than 435 K, this being effected by passing it during at least 1 minute over or through the oxidation reaction product at a flow rate of at least 1 m 3 gas per hour per kg of benzoic acid at a temperature of 285-340 K and at a pressure of at least 3 MPa.
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