公开(公告)号：US20140251318A1

公开(公告)日：2014-09-11

申请号：US13792099

申请日：2013-03-10

Applicant: ECOLAB USA INC.

Inventor： Sergey M. Shevchenko ,  Jane B. Wong Shing ,  Olivier Clot

IPC: C08B1/00

CPC classification number: C08B1/003 ,  C08H6/00

Abstract: The invention provides methods and compositions for the removal of lignin from water suspensions originating from lignocellulosic feedstocks. The method involves adding coagulants and flocculants to the suspension. While hydrolysis does remove some lignin, the pitch in many feedstocks prevents the hydrolysis from coming into contact with all of the lignin or so effectively blocks it that the lignin can re-condense. This is especially the case with low lignin grass based lignocellulosic feedstock. But wWith the addition of the inventive coagulants and flocculants, a phase separation substantially accelerates and lignin forms flocs that forms that physically separates the lignin from the pitch and the cellulose thereby makes removal the lignin from aqueous suspensions by decanting and filtration effective and easy.

Abstract translation: 本发明提供从木质纤维素原料的水悬浮液中除去木质素的方法和组合物。 该方法包括向悬浮液中加入凝结剂和絮凝剂。 虽然水解确实去除了一些木质素，但是许多原料中的沥青阻止水解与所有的木质素接触，或者因此有效地阻止木质素可以再凝结。 对于低木质素草木质纤维素原料尤其如此。 但是，由于添加了本发明的凝结剂和絮凝剂，相分离基本加速，并且木质素形成将木质素与沥青物理分离形成的絮凝物，因此通过倾析和过滤有效和容易地从水悬浮液中除去木质素。

公开(公告)号：US08992688B2

公开(公告)日：2015-03-31

申请号：US13792099

申请日：2013-03-10

Applicant: Ecolab USA Inc.

Inventor： Sergey M. Shevchenko ,  Jane B. Wong Shing ,  Olivier Clot

IPC: C08B1/00

CPC classification number: C08B1/003 ,  C08H6/00

Abstract: The invention provides methods and compositions for the removal of lignin from water suspensions originating from lignocellulosic feedstocks. The method involves adding coagulants and flocculants to the suspension. While hydrolysis does remove some lignin, the pitch in many feedstocks prevents the hydrolysis from coming into contact with all of the lignin or so effectively blocks it that the lignin can re-condense. This is especially the case with low lignin grass based lignocellulosic feedstock. But with the addition of the inventive coagulants and flocculants, a phase separation substantially accelerates and lignin forms flocs that forms that physically separates the lignin from the pitch and the cellulose thereby makes removal the lignin from aqueous suspensions by decanting and filtration effective and easy.

Abstract translation: 本发明提供从木质纤维素原料的水悬浮液中除去木质素的方法和组合物。 该方法包括向悬浮液中加入凝结剂和絮凝剂。 虽然水解确实去除了一些木质素，但是许多原料中的沥青阻止水解与所有的木质素接触，或者因此有效地阻止木质素可以再凝结。 对于低木质素草木质纤维素原料尤其如此。 但是通过添加本发明的凝结剂和絮凝剂，相分离基本上加速，并且木质素形成将木质素与沥青物理分离的纤维素和纤维素，从而通过倾析和过滤有效和容易地从水悬浮液中除去木质素。