公开(公告)号：DE2922700A1

公开(公告)日：1980-12-11

申请号：DE2922700

申请日：1979-06-02

Applicant: HOECHST AG

Inventor： HEISKEL ELMAR DIPL CHEM DR ,  LENDLE WILHELM DIPL CHEM DR

IPC: C07C17/00 ,  C07C17/42 ,  C07C41/58 ,  C07C67/00 ,  C09K3/30 ,  C09K15/04

公开(公告)号：DE4131213A1

公开(公告)日：1993-03-25

申请号：DE4131213

申请日：1991-09-19

Applicant: HOECHST AG

Inventor： LENDLE WILHELM DIPL CHEM DR ,  POST HENDRIK-WILLEM DIPL ING ,  WALDERBACH KARL DIPL ING ,  HOPP PETER DIPL CHEM DR ,  ALTENBACH KLAUS DIPL CHEM DR

IPC: C07C17/16

Abstract: In the gas phase reaction of CC14 with a 1-10C opt. branched mono- or polyhydric aliphatic alcohol (I) to the corresp. chloride in the presence of a solid caalyst (II), (II) consists of active oxidic cpds. of Al and/or Si. Pref. (II) is alpha-Al2O3 (IIA) or pyrogenic SiO2. (I) is a 1-5C monohydric alcohol, esp. MeOH. The (I):CCl4 molar ratio is 4:1 or higher. Reaction is carried out at 150-450, pref. 250-360 deg. C in a tubular reactor contg. a bed of (II), pref. with introduction of HCl gas. USE/ADVANTAGE - Process gives a high deg. of conversion of CCl4 to useful prods., (II) is easily mfd., since no support is necessary, and can be purfied with an O2 stream, whilst the risk of contaminating the prod. with metal salts is avoided. In an example, 110 g/hr.: mixt. of 154 pts. wt. CCl4 and 224 pts. MeOH were vaporised at 200 deg. C and mixed with 44 g/hr. HCl gas. The mixt. was passed through a Ni tubular reactor (55 mm dia.) contg. a 500 mm long bed of (IIA) (ca. 90% pure; calcination loss ca. 10%; 4 x 4 mm tablets; dry bulk density ca. 0.94 g/cc; specific pore vol. ca 0.4 cc/g; BET specific intrinsic surface area ca. 2 x 10 exp. 2 sq. m/g). Heating was regulated so that the outlet temp. was 355 deg. C. The reaction mixt. was cooled to -10 deg. C. This gas 45.5 g condensate contg. 40.7% HCl, 0.8% MeOH, 58.5% water and 0% CCl4; and 49.5 Nl gas contg. 67.3% CH3Cl;, 1.1% CC14, 22.2% HCl, 5.3% CO2 and 4.1% other. The CCl4 conversion was 91.6%. CCl4 conversions as high as 98.6% were attained by varying (II) and the reaction condition

公开(公告)号：DE3016220A1

公开(公告)日：1981-10-29

申请号：DE3016220

申请日：1980-04-26

Applicant: HOECHST AG

Inventor： GRUENBEIN WOLFGANG DIPL CHEM D ,  LENDLE WILHELM DIPL CHEM DR ,  POST HENDRIK WILLEM ,  RICHTER HEINZ ,  ROSSBERG MANFRED DIPL CHEM DR

IPC: B01J21/00 ,  B01J21/04 ,  C07B61/00 ,  C07C17/00 ,  C07C17/16 ,  C07C19/03 ,  C07C67/00 ,  C07C19/02

Abstract: Methyl chloride is manufactured from methanol and hydrogen chloride in the gaseous phase in the presence of an aluminum oxide catalyst. The reaction is carried out in the presence of from 1 to 80 liters of oxygen per kg of methanol.