阅读说明：本技术 一种环保型水性悬浮剂的生产工艺 (A kind of production technology of environment-friendly type aqueous suspending agent ) 是由 战国昌 于 2019-07-29 设计创作，主要内容包括：本发明公开了一种环保型水性悬浮剂的生产工艺,以更廉价、易得的钠基膨润土为主原料生产,以草酸钠和氧化镁为主要添加剂,生产过程中仅烘干阶段有无污染的水蒸气排出,生产过程中无废水、废气和废物排放,环保无残留,不影响环境,实现环保、无污染生产,本工艺生产的产品触变性极强,具有高膨胀性,综合性能优于目前使用的硅酸镁铝,是更优益的环保型水性悬浮剂。(The invention discloses a kind of production technologies of environment-friendly type aqueous suspending agent, it is produced using sodium bentonite that is more cheap, being easy to get as main material, using sodium oxalate and magnesia as main additive, only drying stage has free of contamination vapor to be discharged in production process, without waste water, exhaust gas and waste discharge in production process, environmentally friendly noresidue, do not influence environment, realize environmental protection, CR production, the product thixotropy of this technique production is extremely strong, with high-expansion, it is the environment-friendly type aqueous suspending agent of more excellent benefit that comprehensive performance, which is better than aluminium-magnesium silicate used at present,.)

1. a kind of production technology of environment-friendly type aqueous suspending agent, which comprises the following steps:

Stock: S1 chooses bentonite ore, crushes as powdery；

S2, shear at high temperature are mediated: taking 65 ~ 73 parts by weight of Powdered bentonite ore, 4 ~ 6 parts by weight of sodium oxalate, 2 ~ 3 weight of magnesia Part, 20 ~ 25 parts by weight of water are added in heating kneader, shear at high temperature 20-30min, discharging；

S3, will mediate terminates raw material drying to 10% or less water content；

Raw material after drying is crushed to 325 mesh, obtains finished product by S4.

2. a kind of production technology of environment-friendly type aqueous suspending agent according to claim 1, it is characterised in that: the bentonite Ore is 80% or more smectite content, ore more than CEC-Na75mmol/100 grams of soil.

3. a kind of production technology of environment-friendly type aqueous suspending agent according to claim 1, it is characterised in that: the heating is pinched Close built-in temperature 90-100 degree.

4. a kind of production technology of environment-friendly type aqueous suspending agent according to claim 1, it is characterised in that: the finished product is wanted Ask 325 mesh 98% above by.

Technical field

The present invention relates to coating, field of pesticide preparation, specifically to a kind of production work of environment-friendly type aqueous suspending agent Skill.

Background technique

It is required in water paint, pesticide manufacturing process using aqueous suspension agent, used suspending agent is mostly silicon Sour magnalium, aluminium-magnesium silicate are also most widely used aqueous suspension agent.The raw materials for production of aluminium-magnesium silicate are bentonites, produce silicic acid The technique of magnalium is first to sort bentonite to purify, and mixing inorganic acid (hydrochloric acid or sulfuric acid etc.), warp is added in the bentonite after sorting Pyroreaction, then after the rinsing of a large amount of clear water, dries pulverizing is got product.

Aluminum magnesium silicate production process needs to need after being disposed using a large amount of such as hydrochloric acid, sulfuric acid strong acid treatment at present A large amount of clear water repeatedly rinse, and to remove remaining acid substance, cleaning can generate a large amount of high acid-bearing wastewater, this acid-bearing wastewater pair Soil pollution is serious.Because cost for wastewater treatment is high, direct emission pollutes the environment again, and environmental protection of enterprise processing difficulty is big, at This height causes the product price Continued.

Summary of the invention

It is an object of the invention to overcome the shortcoming of above-mentioned traditional technology, provide former based on a kind of sodium bentonite Production work without waste water and gas waste, extremely strong, high expansion the environment-friendly type aqueous suspending agent of product thixotropy in material, production process Skill.

The purpose of the present invention is what is reached by following technical measures:

A kind of production technology of environment-friendly type aqueous suspending agent, which comprises the following steps:

Stock: S1 chooses bentonite ore, crushes as powdery；

S2, shear at high temperature are mediated: taking 65 ~ 73 parts by weight of Powdered bentonite ore, 4 ~ 6 parts by weight of sodium oxalate, 2 ~ 3 weight of magnesia Part, 20 ~ 25 parts by weight of water are added in heating kneader, shear at high temperature 20-30min, discharging；

S3, will mediate terminates raw material drying to 10% or less water content；

Raw material after drying is crushed to 325 mesh, obtains finished product by S4.

It further says, the bentonite ore is 80% or more smectite content, more than CEC-Na75mmol/100 grams of soil Ore.

It further says, built-in temperature 90-100 degree is mediated in the heating.

Further say, the finished product require 325 mesh 98% above by.

Only it is discharged free of contamination vapor in preparation process of the present invention in the drying process, no any waste water, exhaust gas and useless Object discharge, manufactured product have extremely strong thixotropy and high-expansion, are a kind of aqueous suspension agent haveing excellent performance.

The environment-friendly type aqueous suspending agent of finished product that preparation process of the present invention obtains is whiteness, finished product water content less than 10%, Non-toxic and tasteless, not soluble in water, finished product pH value is 7.6~9.3, and performance is stablized in the range of pH3.5~11 in water, whole synthesis It can be better than existing aluminium-magnesium silicate, the aluminium-magnesium silicate of traditional high pollution technique preparation can be replaced to be applied to coating, pesticide system completely The fields such as agent.5% aqueous dispersion range of viscosities is 700-850CPS.

It is illustrated below with the product contrasting detection test of technique production.

The contrasting detection of product: totally 6 groups, wherein 3 groups are test group, 3 groups are contrast groups, are all made of 100ml tool plug measuring tank For container, test group is respectively pure water, 4% salt water, the product that the production of one gram of this technique is added in 4% soda ash water, comparison Group is respectively pure water, 4% salt water, one gram of commercially available aluminium-magnesium silicate is added in 4% soda ash water.

Each group shake 10 minutes, then it is static storage 48 hours after observe, test group be added this technique production product without Water and soil segregation phenomenon, commercially available aluminium-magnesium silicate is added in contrast groups different degrees of water and soil segregation phenomenon in three groups of containers.

Testing inspection illustrates that environment friendly and pollution-free properties of product prepared by the present invention better than existing aluminium-magnesium silicate, are entirely capable of substituting Aluminium-magnesium silicate used at present realizes environmental protection, CR production.

By adopting the above-described technical solution, compared with prior art, the invention has the advantages that

The invention discloses a kind of production technologies of environment-friendly type aqueous suspending agent, based on sodium bentonite that is more cheap, being easy to get Raw material production, using sodium oxalate and magnesia as main additive, only drying stage has free of contamination vapor to arrange in production process Out, without waste water, exhaust gas and waste discharge in production process, environmentally friendly noresidue does not influence environment, realizes environmental protection, CR production, The product thixotropy of this technique production is extremely strong, has high-expansion, and it is more excellent that comprehensive performance, which is better than aluminium-magnesium silicate used at present, The environment-friendly type aqueous suspending agent of benefit.

The invention will be further described With reference to embodiment.

Specific embodiment