Patent · US Active

Manufacture of methylolalkanes

US9394218B2 · kind B2 · utility

0Cited by

6References

16Claims

0Family size

Assignee

OXEA BISHOP LLC · US

Inventors

Heinz Strutz · Usingen, DE
Donald K. Raff · Waynesville, US
Guido D. Frey · Riedstadt, DE
Norman Nowotny · Essen, DE
Marcos L. Schroeder · Andover, US
Fred Gaytan · Kingsville, US
Tracy Kevin Hung · Port Aransas, US
William E. Slinkard · Richmond, US

Key dates

Filing date	Jul 23, 2014
Grant date	Jul 19, 2016
Priority date	—
Expiry date	Jul 23, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/24
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A multistage tubular reaction system and method for preparing methylol derivatives of an aldehyde includes a tubular reaction system with a plurality of successive reactor stages provided with a formaldehyde containing feed stream. The system includes multiple feed ports for the staged addition of C2 or higher condensible aldehyde and/or base to the formaldehyde containing stream at a plurality of successive feed points to provide a production stream, which is progressively provided with additional reactants as the production stream advances through the successive reaction stages. Advantages include better temperature control and reduced byproduct formation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.