Method for preparing environment-friendly waterproof plant asphalt by using plant raw materials

A technology of plant asphalt and plant raw materials, which is applied in the direction of processing tar asphalt/petroleum asphalt/natural asphalt by chemical methods, which can solve the problems of environmental pollution, high cost, and low utilization rate of waste asphalt, and achieve broad application prospects and high equipment efficiency. The effect of low requirements and low raw material cost
CN102703103AInactive Publication Date: 2012-10-03DONGHUA UNIV
8 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGHUA UNIV
Publication Date
2012-10-03
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention relates to a method for preparing environment-friendly waterproof plant asphalt by using plant raw materials, which comprises the following steps: adding phthalic anhydride into a fractionated substrate, wherein the weight of the phthalic anhydride is 10-15% of the weight of the fractionated substrate; stirring at 190-210 DEG C under an airtight condition and performing esterification cyclization reaction for 3-4 hours; and when vapor pressure of water generated from the reaction no longer increases, stopping reaction and relieving the pressure, thereby obtaining the environment-friendly waterproof plant asphalt. According to the method provided by the invention, the operation is simple, the cost of raw materials is low, the demand on equipment is lower, the environment is protected and the method is suitable for large-scale production. According to the method provided by the invention, the problem that a large quantity of fractionated substrates are accumulated in the large-scale industrial production of binary chemical alcohol is solved; the product prepared according to the method contains no carcinogenic substance and can contain partial petroleum asphalt, thereby being environment-friendly and safe and obtaining higher economic benefit; and the application prospect is wide.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of asphalt preparation, and in particular relates to a method for preparing environmentally friendly and waterproof plant asphalt by using plant raw materials. Background technique

[0002] In the post-petroleum era when biological resources are used to replace petroleum, only the large-scale industrial development of "bioenergy" such as biodiesel and bioethanol (monohydric alcohol) has been completed in the world. Glycols are one of the raw materials for chemical products (polyester) that consume the largest petroleum resources besides energy. Invention patent ZL 2007 1 0038146.5 "a preparation method of corn raw material multi-component diol", and invention patent ZL 2007 1 0038144.6 "a preparation method of PDT copolyester fiber", and invention patent application: 2007 1 00381408 "Method for preparing unsaturated resin from resin diol produced from renewable biological raw materials", contributed to the first larg...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More