Corncob sodium carboxymethyl cellulose sodium With the […]
Corncob sodium carboxymethyl cellulose sodium With the development of the petroleum industry, the amount of sodium carboxymethyl cellulose is increasing. In 1989, the corncob sodium carboxymethyl cellulose (referred to as cm C) was successfully researched and manufactured. -Na). In the past, the production of centimeter C-Na, the raw material is short cotton linters, the production of 1 ton requires short cotton linters 0.5 tons, in recent years, short cotton linters are scarce, and the price is high.
The method of using corn cob instead of short cotton to produce sodium carboxymethyl cellulose can produce 1 ton C-Na per 1.7 tons of corn cob, which greatly reduces the cost of raw materials, and in the production process. The pentose and lignin produced can be reused for the purpose of comprehensive development and utilization. The general process of manufacture is to first make the corn cob into cellulose, then alkalinize it into alkali cellulose, and then react with chloroacetic acid to form sodium chloroacetate, and then etherify to obtain sodium carboxymethyl cellulose.